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        80 Permanent API jobs in Essex + 20 miles

        Software Developer In Test

        G.R.E. Recruitment Limited
        Epsom (KT19)
        From £50,000 to £60,000 per annum
        G.R.E. Recruitment Limited is delighted to partner yet again with an Award-Winning UK based FinTech Company who are looking to add a Software Developer in Test to their development team reporting to the Engineering Manager who G.R.E. Recruitment recently placed with them. For this SDET Role I am looking for someone with a Java coding background along with experience of automated and manual testing. You should have experience of building or maintaining automation frameworks using tools such as Selenium, Playwright, Cypress and JUnit/TestNG. Along with this you should also have hands on experience with API testing tools (e.g., Postman, REST Assured) and performance tools (e.g., JMeter, Gatling). You'll be joining a team of 6 engineers and leveraging cloud services and third party software to accelerate platform development where appropriate. No Sponsorship Available.
        G.R.E. Recruitment Limited is delighted to partner yet again with an Award-Winning UK based FinTech Company who are looking to add a Software Developer in Test to their development team reporting to the Engineering Manager who G.R.E. Recruitment recently placed with them. For this SDET Role I am looking for someone with a Java coding background along with experience of automated and manual testing. You should have experience of building or maintaining automation frameworks using tools such as Selenium, Playwright, Cypress and JUnit/TestNG. Along with this you should also have hands on experience with API testing tools (e.g., Postman, REST Assured) and performance tools (e.g., JMeter, Gatling). You'll be joining a team of 6 engineers and leveraging cloud services and third party software to accelerate platform development where appropriate. No Sponsorship Available.
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        Senior Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Unspecified
        DeFi Remote Up to $250k Plexus has another great opportunity with one of our clients that are a non-custodial crypto trading and data platform built for speed, accuracy, and full user control. They provide a unified base of operations where traders keep custody of their funds, access live market data, execute instantly, and trade even the newest markets with powerful, intuitive tools. they keep there team intentionally small, bringing together only the most exceptional talent in crypto. They are looking for a backend engineer experienced in building high-performance, low-latency microservices in TypeScript. Responsibilities * Backend Development: Build and maintain scalable TypeScript services for trading, analytics, and integrations. * Cross-Team Collaboration: Work with designers, product, and users to align backend solutions with platform needs.
        DeFi Remote Up to $250k Plexus has another great opportunity with one of our clients that are a non-custodial crypto trading and data platform built for speed, accuracy, and full user control. They provide a unified base of operations where traders keep custody of their funds, access live market data, execute instantly, and trade even the newest markets with powerful, intuitive tools. they keep there team intentionally small, bringing together only the most exceptional talent in crypto. They are looking for a backend engineer experienced in building high-performance, low-latency microservices in TypeScript. Responsibilities * Backend Development: Build and maintain scalable TypeScript services for trading, analytics, and integrations. * Cross-Team Collaboration: Work with designers, product, and users to align backend solutions with platform needs.
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        Mid-Level Java Developer

        G.R.E. Recruitment Limited
        Epsom (KT19)
        From £50,000 to £60,000 per annum
        G.R.E. Recruitment Limited is delighted to partner yet again with an Award-Winning UK based FinTech Company who are looking to add a Mid-Level Java Developer to their development team reporting to the Engineering Manager who G.R.E. Recruitment recently placed with them. I am looking for a Mid-Level Java Developer with 3-5 years experience. In this role you'll be helping to migrate a legacy system into newer microservices based architecture so similar experience of breaking down monolith systems would be ideal. This role is purely a backend development role. The core tech stack is: Java 8+, Spring MVC, SpringBoot, REST API's and using build tools such as Maven/Gradle. You'll be an advocate of best engineering principles (SOLID), ensuring you're writing clean code and optimizing performance and scalability.
        G.R.E. Recruitment Limited is delighted to partner yet again with an Award-Winning UK based FinTech Company who are looking to add a Mid-Level Java Developer to their development team reporting to the Engineering Manager who G.R.E. Recruitment recently placed with them. I am looking for a Mid-Level Java Developer with 3-5 years experience. In this role you'll be helping to migrate a legacy system into newer microservices based architecture so similar experience of breaking down monolith systems would be ideal. This role is purely a backend development role. The core tech stack is: Java 8+, Spring MVC, SpringBoot, REST API's and using build tools such as Maven/Gradle. You'll be an advocate of best engineering principles (SOLID), ensuring you're writing clean code and optimizing performance and scalability.
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        Solutions Consultant – Integrations

        ARC IT Recruitment Ltd
        West End, Central London (W1), W1G
        £competitive + Bonus + Excellent Benefits
        Remote £competitive + benefits Talented Solutions Consultant with HR Tech integrations experience is sought by thriving software house. Theyre looking for someone who can take the lead on how their platform connects with other HR systems. This is a standalone role, so youll have real ownership over integrations with ATS platforms, CRMs and other third-party tools. Youll work closely with product, engineering, professional services and customer success teams, acting as the link between what clients need and how the technology delivers it. Key Responsibilities * Taking charge of the integration part of client implementations. Often this will sit within a wider project that might include assessments, video interviewing, reporting tools or virtual assessment centres.
        Remote £competitive + benefits Talented Solutions Consultant with HR Tech integrations experience is sought by thriving software house. Theyre looking for someone who can take the lead on how their platform connects with other HR systems. This is a standalone role, so youll have real ownership over integrations with ATS platforms, CRMs and other third-party tools. Youll work closely with product, engineering, professional services and customer success teams, acting as the link between what clients need and how the technology delivers it. Key Responsibilities * Taking charge of the integration part of client implementations. Often this will sit within a wider project that might include assessments, video interviewing, reporting tools or virtual assessment centres.
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        Product Owner

        Gerrard White
        High Brooms, Tunbridge Wells (TN4), TN2 3EF
        Unspecified
        Location: Royal Tunbridge Wells (Hybrid) Ready to take ownership of a high-impact product and shape the future of business systems in a fast-moving tech environment? We’re looking for a dynamic Product Owner to lead the evolution of our ERP platform, alongside other key IT systems, and drive meaningful change across the organisation. This is an exciting opportunity for someone who thrives at the intersection of strategy, technology, and user experience. About the Role As the Product Owner, you’ll take full responsibility for the product backlog and roadmap, ensuring delivery remains aligned with business priorities. You’ll collaborate closely with stakeholders and an external development partner to bring new features, enhancements, and integrations to life. Your work will directly support operational excellence and long-term strategic growth. Key Responsibilities
        Location: Royal Tunbridge Wells (Hybrid) Ready to take ownership of a high-impact product and shape the future of business systems in a fast-moving tech environment? We’re looking for a dynamic Product Owner to lead the evolution of our ERP platform, alongside other key IT systems, and drive meaningful change across the organisation. This is an exciting opportunity for someone who thrives at the intersection of strategy, technology, and user experience. About the Role As the Product Owner, you’ll take full responsibility for the product backlog and roadmap, ensuring delivery remains aligned with business priorities. You’ll collaborate closely with stakeholders and an external development partner to bring new features, enhancements, and integrations to life. Your work will directly support operational excellence and long-term strategic growth. Key Responsibilities
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        Full Stack Developer

        Loopla
        Euston, North West London (NW1), NW1 2RT
        Competitive
        About Loopla Loopla is a London-based family events marketplace helping parents discover and book activities for their children. Were a small engineering team, moving quickly and building the tools that power both family discovery and organiser growth. Every engineer has real ownership and impact. The Role Were looking for a Senior Full Stack Engineer who enjoys solving hard problems, takes initiative, and cares about building things properly. Youll work across the stack, own major features end to end, and help shape the direction of a growing product. This is a hybrid role: 3 days in our Euston office, 2 days remote. We may be relocating to Stratford in the coming months, and the hybrid pattern would remain the same. Responsibilities * Lead feature planning and turn ideas into well-scoped, buildable work * Build reliable, maintainable frontend and backend systems
        About Loopla Loopla is a London-based family events marketplace helping parents discover and book activities for their children. Were a small engineering team, moving quickly and building the tools that power both family discovery and organiser growth. Every engineer has real ownership and impact. The Role Were looking for a Senior Full Stack Engineer who enjoys solving hard problems, takes initiative, and cares about building things properly. Youll work across the stack, own major features end to end, and help shape the direction of a growing product. This is a hybrid role: 3 days in our Euston office, 2 days remote. We may be relocating to Stratford in the coming months, and the hybrid pattern would remain the same. Responsibilities * Lead feature planning and turn ideas into well-scoped, buildable work * Build reliable, maintainable frontend and backend systems
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        Solution Architect

        MFA Talent Services
        City of London, London
        £60,000 – £95,000 + Bonus
        Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £60,000 £95,000 + Bonus This role requires the ability to gain SC Clearance About the Role This role offers the opportunity to operate as an end-to-end Solution Architect on major digital transformation initiatives, working directly with senior business and technology leaders. Youll design and deliver modern, cloud-native, scalable architectures across AWS, Azure and GCP, applying engineering-led thinking and hands-on technical depth to shape high-impact solutions for FTSE 100 clients. Youll act as a trusted technical advisor, defining solution options, guiding engineering teams, ensuring architectural integrity, and supporting clients from early discovery and conceptualisation through to delivery.
        Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £60,000 £95,000 + Bonus This role requires the ability to gain SC Clearance About the Role This role offers the opportunity to operate as an end-to-end Solution Architect on major digital transformation initiatives, working directly with senior business and technology leaders. Youll design and deliver modern, cloud-native, scalable architectures across AWS, Azure and GCP, applying engineering-led thinking and hands-on technical depth to shape high-impact solutions for FTSE 100 clients. Youll act as a trusted technical advisor, defining solution options, guiding engineering teams, ensuring architectural integrity, and supporting clients from early discovery and conceptualisation through to delivery.
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        The Football Association (The FA) is making significant investments in our foundational digital capabilities to support the development of new propositions, address business challenges, and provide a platform for future growth. This investment is expanding our digital and technology capabilities as we pursue our ambition to reach more people, grow participation, and better serve existing participants, fans, and attendees. As we transform our digital products and platforms, we are seeking talented and experienced professionals to accelerate the delivery of world-class, direct-to-consumer experiences. We are seeking an experienced QA Lead to drive the testing strategy and delivery for our Commercial Marketing Enablers (CME) programme, supporting The FA's wider digital transformation.
        The Football Association (The FA) is making significant investments in our foundational digital capabilities to support the development of new propositions, address business challenges, and provide a platform for future growth. This investment is expanding our digital and technology capabilities as we pursue our ambition to reach more people, grow participation, and better serve existing participants, fans, and attendees. As we transform our digital products and platforms, we are seeking talented and experienced professionals to accelerate the delivery of world-class, direct-to-consumer experiences. We are seeking an experienced QA Lead to drive the testing strategy and delivery for our Commercial Marketing Enablers (CME) programme, supporting The FA's wider digital transformation.
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        NEW

        Senior Full Stack .Net Developer

        Hays
        Gatwick (RH6)
        £65000 - £75000 per annum + £65-75k + Benefits
        Gatwick (1-2 days per week in office) £65-75k + Benefits. Your new company This leading financial and consulting business are looking to bolster their engineering team with a Senior Full Stack .Net Developer to join their core team of 16 Devs. You will be working in their state-of-the-art offices near to Gatwick/Crawley and will be required to work 1-2 days per week in the office. Your new role This is a full-stack, full software lifecycle role where Devs are encouraged to bring ideas to the table and challenge the status quo. From architecture and development through to deployment you'll play a key role in building cutting-edge solutions by developing .NET microservices and dynamic Angular front-end applications (we can consider React cross-training to Angular).
        Gatwick (1-2 days per week in office) £65-75k + Benefits. Your new company This leading financial and consulting business are looking to bolster their engineering team with a Senior Full Stack .Net Developer to join their core team of 16 Devs. You will be working in their state-of-the-art offices near to Gatwick/Crawley and will be required to work 1-2 days per week in the office. Your new role This is a full-stack, full software lifecycle role where Devs are encouraged to bring ideas to the table and challenge the status quo. From architecture and development through to deployment you'll play a key role in building cutting-edge solutions by developing .NET microservices and dynamic Angular front-end applications (we can consider React cross-training to Angular).
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        Full Stack Engineer Python TypeScript

        Client Server
        St James, South West London (SW1), SW1A
        £100000 - £120000 per annum + bonus + benefits
        Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.
        Full Stack Engineer / Developer (Python TypeScript) London / WFH to £120k Are you a technologist with start-up experience looking for your next opportunity? You could be progressing your career at a tech start-up that is producing an AI native data pipelining platform. As a Full Stack Engineer within a small team, you will build and implement new features across the full tech stack, with a focus on backend Python and TypeScript and some React work on the front end. You'll take ownership and work across the full development lifecycle, collaborating with customers to build and scale the product. The work is interesting and complex, you'll be able to contribute to the product vision and strategy playing a pivotal role in the company's success. You'll join colleagues in the London office (close to Waterloo) with flexibility to work from home twice a week.
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        PREMIUM
        Data Services Team Lead / Manager Location: Epsom Salary: Competitive Team: 4 direct reports, with opportunity to grow * Hybrid working (2 days office / 3 days remote) * Private medical cover * Excellent pension contributions and bonus scheme * Car scheme for employees & family wellbeing support * 25+ days holiday plus volunteering leave * Onsite gym & other great facilities * Flexible working and extensive training options We're looking for a driven, hands-on Data Services Team Lead / Manager to guide a team of data engineers, oversee daily operations and deliver high-quality data solutions for a well-established local client. The ideal individual is someone who enjoys being technical whilst also inspiring and developing their team. This role would also be a great opportunity for a Data Engineer who has led projects and is ready to step into a leadership position.
        Data Services Team Lead / Manager Location: Epsom Salary: Competitive Team: 4 direct reports, with opportunity to grow * Hybrid working (2 days office / 3 days remote) * Private medical cover * Excellent pension contributions and bonus scheme * Car scheme for employees & family wellbeing support * 25+ days holiday plus volunteering leave * Onsite gym & other great facilities * Flexible working and extensive training options We're looking for a driven, hands-on Data Services Team Lead / Manager to guide a team of data engineers, oversee daily operations and deliver high-quality data solutions for a well-established local client. The ideal individual is someone who enjoys being technical whilst also inspiring and developing their team. This role would also be a great opportunity for a Data Engineer who has led projects and is ready to step into a leadership position.
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        Tech Lead

        MFA Talent Services
        City of London, London
        £80,000 – £100,000 + Bonus
        Technical Lead Cloud-Native Engineering | Modern Application Development Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £80,000 £100,000 + Bonus This role requires the ability to gain SC Clearance About the Role This is an excellent opportunity for a Technical Lead to guide high-performing Agile engineering teams and deliver modern, cloud-native applications for major clients. You will bring deep hands-on engineering expertise, make pragmatic architectural decisions, and champion best practices that ensure scalable, resilient and secure production systems. You will play a central role in shaping technical direction, embedding DevOps culture, ensuring strong engineering fundamentals, and working closely with stakeholders to translate requirements into high-quality digital products.
        Technical Lead Cloud-Native Engineering | Modern Application Development Location: London, Manchester or Bristol (Hybrid 60% onsite) Salary: £80,000 £100,000 + Bonus This role requires the ability to gain SC Clearance About the Role This is an excellent opportunity for a Technical Lead to guide high-performing Agile engineering teams and deliver modern, cloud-native applications for major clients. You will bring deep hands-on engineering expertise, make pragmatic architectural decisions, and champion best practices that ensure scalable, resilient and secure production systems. You will play a central role in shaping technical direction, embedding DevOps culture, ensuring strong engineering fundamentals, and working closely with stakeholders to translate requirements into high-quality digital products.
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        Senior DeFi Backend Engineer

        Plexus Resource Solutions Ltd
        City of London (EC1)
        Up to £175,000 per annum
        DeFi Remote Upto€200k+ Tokens Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience
        DeFi Remote Upto€200k+ Tokens Plexus is partnering with a long-standing DeFi protocol building a next-generation trading platform. Theyre pioneering a new model for automated strategies and and are now looking for a Senior DeFi Backend Engineer to help build the core systems powering it. Youll join a highly technical team working across general backend systems engineering along with apis, optimising the application for performance, arbitrage bots and more. 3+ years experience with backend Python : Including async systems, data pipelines, or protocol-level integrations. 1+ year of recent Rust experience : With the ability to read, modify, and contribute to Rust-based components. DevOps: Ideally with docker experience
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        Senior Azure Data Engineer

        Young's Employment Services Ltd
        West London (W5)
        circ £70,000 - £80,000 DOE
        Hybrid - Work From Home and West London Circ £70,000 - £80,000 + Range of benefits A well-known and prestigious business is looking to add a Senior Azure Data Engineer to their data team. This is an exciting opportunity for a Data Engineer that's not just technical, but also enjoys directly engaging and collaborating with stakeholders from across business functions such as finance, operations, planning, manufacturing, retail, e-commerce etc. Having nearly completed the process of migrating data from their existing on-prem databases to an Azure Cloud based platform, the Senior Data Engineer will play a key role in helping make best use of the data by gathering and agreeing requirements with the business to build data solutions that align accordingly.
        Hybrid - Work From Home and West London Circ £70,000 - £80,000 + Range of benefits A well-known and prestigious business is looking to add a Senior Azure Data Engineer to their data team. This is an exciting opportunity for a Data Engineer that's not just technical, but also enjoys directly engaging and collaborating with stakeholders from across business functions such as finance, operations, planning, manufacturing, retail, e-commerce etc. Having nearly completed the process of migrating data from their existing on-prem databases to an Azure Cloud based platform, the Senior Data Engineer will play a key role in helping make best use of the data by gathering and agreeing requirements with the business to build data solutions that align accordingly.
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        Software Architect

        Bilge Adam Technologies UK Ltd
        Central London (WC1)
        From £75,000 to £90,000 per annum
        Job description Job Role: Software/Solution Architect We are looking to hire an experienced Software Architect. What Youll Be Doing Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For
        Job description Job Role: Software/Solution Architect We are looking to hire an experienced Software Architect. What Youll Be Doing Youll play a key role in shaping how modern software platforms are designed, integrated, and scaled. * Designing and defining end-to-end Software Architecture * Building scalable, modular, secure platforms * Guiding developers with best practices and architectural patterns * Leading integration between cloud services, APIs, and (at times) connectivity components like telematics or infotainment * Improving performance, security, and long-term maintainability * Collaborating closely with Product and operations teams. This is a role where your technical decisions genuinely shape the future of the product. Who Were Looking For
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        Software Engineering Manager - Unified Client Experience (UCX)

        Hargreaves Lansdown
        City of London (EC1)
        £90000 - £115000 per annum + Generous bonus, pension, PMI and more
        HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform.
        HL are looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform.
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        FEATURED
        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
        Principal Technical Safety Consultants (CFD-FLACS) Background Risktec Solutions is an established, independent and specialist risk management consulting and training company, and is part of the TV Rheinland Group. We help clients to manage health, safety, security, environmental and business risk in sectors where the impact of loss is significant. Our people are high calibre professionals, with a strong focus on meeting clients expectations and we have offices across the UK and in the Netherlands, Dubai, Muscat, Houston and Calgary. Further information is available at * oil and gas (offshore and onshore) * carbon capture and storage * chemical manufacturing, handling and storage * hydrogen generation and distribution * onshore and offshore wind energy. Role Description
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        Penetration Testing Team Leader - Growing Cybersecurity Firm

        Recruitment Revolution
        Covent Garden, Central London (WC2), WC1A
        Up to £95,000 DOE Plus Benefits
        Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team Leader, you’ll play a pivotal role in shaping cutting-edge testing services, developing talented testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this is a role designed for a driven, highly skilled Team Lead who thrives on technical depth, leadership and solving complex security challenges. Penetration Testing Team Leader
        Ready to take the next step in your penetration testing career and lead a high-performing team at a respected, fast-growing cybersecurity consultancy? This is your opportunity to join a CREST-certified organisation committed to excellence, innovation and integrity. As our new Penetration Testing Team Leader, you’ll play a pivotal role in shaping cutting-edge testing services, developing talented testers, and helping protect clients across government, telecoms, finance, digital currencies and other critical sectors. With structured development, meaningful progression opportunities, and the chance to make a visible impact from day one, this is a role designed for a driven, highly skilled Team Lead who thrives on technical depth, leadership and solving complex security challenges. Penetration Testing Team Leader
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        Seismic Developer

        Rathbones Group Plc
        The City, City of London (EC2), EC2V 7QN
        To define
        At Rathbones, we help people invest their money well, so they can live well. That means more than financial returns its about helping people feel confident in their decisions and supported in their future. We dont just manage money, we guide people through lifes big moments, helping them stay on track and focus on what matters most. Were proud to be one of the UKs leading wealth managers, with over £109bn* in assets under management and 20+ offices across the UK and Channel Islands. Were a FTSE 250 company with national reach and a local feel and were growing. *As of June 2025 Role Title: Seismic Developer Division: Brand & Digital Services Location: London Contract: Permanent Working pattern: Hybrid About the Role
        At Rathbones, we help people invest their money well, so they can live well. That means more than financial returns its about helping people feel confident in their decisions and supported in their future. We dont just manage money, we guide people through lifes big moments, helping them stay on track and focus on what matters most. Were proud to be one of the UKs leading wealth managers, with over £109bn* in assets under management and 20+ offices across the UK and Channel Islands. Were a FTSE 250 company with national reach and a local feel and were growing. *As of June 2025 Role Title: Seismic Developer Division: Brand & Digital Services Location: London Contract: Permanent Working pattern: Hybrid About the Role
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        FEATURED

        Solution Architect

        Henderson Scott
        North West London, London, NW1 7AW
        £70000.00 - £75000.00 per annum + Highly Remote, 30 days AL+BH
        Location: Hybrid - London & home MAX 1 day per week in the office. Reporting to: Enterprise Architect Hybrid | 35-hour week Benefits: 30 days AL, Healthcare, Family Care, Up to 10% Pension, Support Leave Salary: £70,000 - £75,000 Per Annum. Overview A key role within the Technology function, responsible for shaping solution design for a major business programme. You'll ensure solutions align with architectural standards, support integration and reporting platforms, and work closely with engineering teams and suppliers to deliver high-quality, scalable, and secure outcomes. Key Responsibilities * Lead solution design across major programme workstreams, aligning with architectural vision and technical standards. * Support cloud and data governance; define best practice for integration and reporting.
        Location: Hybrid - London & home MAX 1 day per week in the office. Reporting to: Enterprise Architect Hybrid | 35-hour week Benefits: 30 days AL, Healthcare, Family Care, Up to 10% Pension, Support Leave Salary: £70,000 - £75,000 Per Annum. Overview A key role within the Technology function, responsible for shaping solution design for a major business programme. You'll ensure solutions align with architectural standards, support integration and reporting platforms, and work closely with engineering teams and suppliers to deliver high-quality, scalable, and secure outcomes. Key Responsibilities * Lead solution design across major programme workstreams, aligning with architectural vision and technical standards. * Support cloud and data governance; define best practice for integration and reporting.
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        FEATURED
        Full Stack .Net Developer (Angular v20 and .NET 8 Microservices) Gatwick (2 days per week in office) £40-55k + Benefits. Your new company This leading financial and consulting business are looking to bolster their engineering team with a Full Stack .Net Developer to join their core team of 16 Devs. You will be working in their state-of-the-art offices near to Gatwick/Crawley and will be required to work 2 days per week in the office. Your new role This is a full-stack, full software lifecycle role where Devs are encouraged to bring ideas to the table and challenge the status quo. From architecture and development through to deployment you'll play a key role in building cutting-edge solutions by developing .NET microservices and dynamic Angular front-end applications.
        Full Stack .Net Developer (Angular v20 and .NET 8 Microservices) Gatwick (2 days per week in office) £40-55k + Benefits. Your new company This leading financial and consulting business are looking to bolster their engineering team with a Full Stack .Net Developer to join their core team of 16 Devs. You will be working in their state-of-the-art offices near to Gatwick/Crawley and will be required to work 2 days per week in the office. Your new role This is a full-stack, full software lifecycle role where Devs are encouraged to bring ideas to the table and challenge the status quo. From architecture and development through to deployment you'll play a key role in building cutting-edge solutions by developing .NET microservices and dynamic Angular front-end applications.
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        Location * London * Hybrid 1-2 days a week in the office * eligibility to work in the UK Role Overview We are looking for 2 experienced Senior Developers, preferably people who are experienced with Back End development, to join a team of eight mid-senior level developers on a greenfield Stream Factory project. This is a cutting-edge cloud solution that handles video and audio contributions, transformation, storage, and media file production. The successful applicants will help develop and maintain a suite of microservices that drive the backend workflows for preparing, transcoding, and distributing audio and video content online. In a future dominated by digital media, our role ensures the content stays relevant in a rapidly evolving landscape.
        Location * London * Hybrid 1-2 days a week in the office * eligibility to work in the UK Role Overview We are looking for 2 experienced Senior Developers, preferably people who are experienced with Back End development, to join a team of eight mid-senior level developers on a greenfield Stream Factory project. This is a cutting-edge cloud solution that handles video and audio contributions, transformation, storage, and media file production. The successful applicants will help develop and maintain a suite of microservices that drive the backend workflows for preparing, transcoding, and distributing audio and video content online. In a future dominated by digital media, our role ensures the content stays relevant in a rapidly evolving landscape.
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        Software Engineer

        EMBL-EBI
        Hinxton, Saffron Walden (CB10), CB10 1SD
        From £43,015 to £72,738 per annum based on experience and family
        We are looking for a Developer with a strong record in software development and interest in developing AI-based systems for one of the most internationally used data resources in biological science, UniProt. Our team is very dynamic and interdisciplinary, comprising talented and enthusiastic software engineers and bioinformaticians working closely together with biologists and scientists. The UniProt resource is one of the most internationally used resources for protein sequence and functional annotation, providing comprehensive, high-quality, and freely accessible data to a large and diverse research community in genomics, proteins and proteomics.
        We are looking for a Developer with a strong record in software development and interest in developing AI-based systems for one of the most internationally used data resources in biological science, UniProt. Our team is very dynamic and interdisciplinary, comprising talented and enthusiastic software engineers and bioinformaticians working closely together with biologists and scientists. The UniProt resource is one of the most internationally used resources for protein sequence and functional annotation, providing comprehensive, high-quality, and freely accessible data to a large and diverse research community in genomics, proteins and proteomics.
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        PREMIUM

        Software Engineer

        EMBL-EBI
        Hinxton, Saffron Walden (CB10), CB10 1SD
        From £43,015 to £72,738 per annum based on experience and family
        About the Team We are looking for a Software engineer with strong record in software development and interested in developing services for one of the most internationally used data resources in biological science, UniProt. Our team is very dynamic and interdisciplinary comprising talented and enthusiastic software engineers and bioinformaticians working closely together with biologists and scientists. The UniProt resource is one of the most internationally used protein databases serving a large and diverse research community in genomics, proteins and proteomics. Duties & Responsibilities As part of your daily work, you will be designing and developing software and APIs for the UniProt data services and website, providing protein information to the scientific community and computational biologists.
        About the Team We are looking for a Software engineer with strong record in software development and interested in developing services for one of the most internationally used data resources in biological science, UniProt. Our team is very dynamic and interdisciplinary comprising talented and enthusiastic software engineers and bioinformaticians working closely together with biologists and scientists. The UniProt resource is one of the most internationally used protein databases serving a large and diverse research community in genomics, proteins and proteomics. Duties & Responsibilities As part of your daily work, you will be designing and developing software and APIs for the UniProt data services and website, providing protein information to the scientific community and computational biologists.
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        PREMIUM

        Senior Technical Project Manager

        Halian Technology Limited
        Bengo, Hertford (SG14), SG14 1PB
        From £85,000 to £100,000 per annum
        Hertfordshire £85,000 - £100,000 + Package About the Role Were looking for aTechnical Project Managerto lead a majordigital transformation programmefor a leadingeCommerce client. Youll manage multiple software and DevOps workstreams, driving delivery excellence across engineering, platform, and product teams. This is ahands-on technical role ideal for someone who thrives at the intersection of technology, delivery, and business change. Key Responsibilities * Lead end-to-end delivery ofsoftware, platform, and DevOps projects. * Work within asmall, high-performing delivery teamacross multiple workstreams. * Work closely withengineering and architectureto deliver scalable, cloud-based solutions. * EmbedAgile and DevOpspractices (CI/CD, automation, IaC, cloud). * Drive programme planning, governance, risks, and reporting.
        Hertfordshire £85,000 - £100,000 + Package About the Role Were looking for aTechnical Project Managerto lead a majordigital transformation programmefor a leadingeCommerce client. Youll manage multiple software and DevOps workstreams, driving delivery excellence across engineering, platform, and product teams. This is ahands-on technical role ideal for someone who thrives at the intersection of technology, delivery, and business change. Key Responsibilities * Lead end-to-end delivery ofsoftware, platform, and DevOps projects. * Work within asmall, high-performing delivery teamacross multiple workstreams. * Work closely withengineering and architectureto deliver scalable, cloud-based solutions. * EmbedAgile and DevOpspractices (CI/CD, automation, IaC, cloud). * Drive programme planning, governance, risks, and reporting.
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        What is the average salary for API in Essex?

        Average salary per year
        £47,499

        The average salary for a API in Essex is £47,499. API in Essex salaries range from £37,499 to £47,499.

        Frequently Asked Questions

        How many permanent API jobs are there in Essex?
        There are 80 permanent API jobs within 20 miles of Essex available on Jobsite right now.

        What other similar jobs are there to permanent API jobs in Essex?
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