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9 Contract API jobs in West Sussex + 20 miles

Senior QA Test Engineer C# API Performance Testing

Client Server
Underhill Park, RH2
£70000 - £85000 per annum + bonus + benefits
Do you enjoy breaking things and putting them back together to discover how they work? You could be progressing your career, in a senior, hands-on role working on complex and technically challenging systems with continual learning opportunities a global FinTech. As a Senior QA Test Engineer you'll collaborate with a small, Agile team to define test strategies for features or whole applications; you'll establish test environments and frameworks and work with software developers to achieve high levels of test automation with a focus on complex backend C#, API and Performance Testing (JMeter). You'll work end-to-end, liaising with the Product Owner to define User Stories, through to executing manual and automation tests, performing exploratory testing and investigating new tools and processes.
Do you enjoy breaking things and putting them back together to discover how they work? You could be progressing your career, in a senior, hands-on role working on complex and technically challenging systems with continual learning opportunities a global FinTech. As a Senior QA Test Engineer you'll collaborate with a small, Agile team to define test strategies for features or whole applications; you'll establish test environments and frameworks and work with software developers to achieve high levels of test automation with a focus on complex backend C#, API and Performance Testing (JMeter). You'll work end-to-end, liaising with the Product Owner to define User Stories, through to executing manual and automation tests, performing exploratory testing and investigating new tools and processes.
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PREMIUMNEW
Are you a Golang Software Engineer looking for your next big move? We're partnering with an innovative fintech company that's on the lookout for Mid-Level Golang Software Engineers to join their growing team. This is a hybrid role with just one day a month in central London. As part of this dynamic team, you'll build high-performance, scalable, and maintainable applications in Go. You'll get to flex your architecture muscles with Domain-Driven Design (DDD), CQRS, and Repository Patterns, helping to shape complex business logic into elegant, production-ready solutions. * 2+ years of hands-on Golang experience * Understanding of DDD, CQRS, and Repository Patterns * Familiarity with Hexagonal architecture * Experience with cloud platforms like AWS * Solid understanding of microservices and API's
Are you a Golang Software Engineer looking for your next big move? We're partnering with an innovative fintech company that's on the lookout for Mid-Level Golang Software Engineers to join their growing team. This is a hybrid role with just one day a month in central London. As part of this dynamic team, you'll build high-performance, scalable, and maintainable applications in Go. You'll get to flex your architecture muscles with Domain-Driven Design (DDD), CQRS, and Repository Patterns, helping to shape complex business logic into elegant, production-ready solutions. * 2+ years of hands-on Golang experience * Understanding of DDD, CQRS, and Repository Patterns * Familiarity with Hexagonal architecture * Experience with cloud platforms like AWS * Solid understanding of microservices and API's
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Software Developer

Guidant Global
PO1, Portsmouth
Up to £55 per hour + Inside IR35, PAYE available
Job Description The developer shall join a 7 member scrum team as part of a wider program to deliver a management systems for a new Satellite. The developer shall contribute to all stages of the software development lifecycle and thus have solid experience in design (particularly using UML), development (particularly using Java technologies) and test. The developer should have experience of working with microservices. Automated testing is a critical part of the project so any experience of this would be highly beneficial. Tasks & accountabilities * Development of code within an agile environment (scrum). * Working with the team to design, implement and test features for a new product development. * Task estimation in accordance with sprint planning.
Job Description The developer shall join a 7 member scrum team as part of a wider program to deliver a management systems for a new Satellite. The developer shall contribute to all stages of the software development lifecycle and thus have solid experience in design (particularly using UML), development (particularly using Java technologies) and test. The developer should have experience of working with microservices. Automated testing is a critical part of the project so any experience of this would be highly beneficial. Tasks & accountabilities * Development of code within an agile environment (scrum). * Working with the team to design, implement and test features for a new product development. * Task estimation in accordance with sprint planning.
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NEW

Full Stack Developer

In Technology Group Limited
BN1, Brighton
£35000 - £50000 per annum + Benefits
Job Title: Full Stack Developer Location: Brighton (Hybrid) Salary: Up to £50,000 DOE Are you a problem-solver who loves coding across the stack? We're looking for a Full Stack Developer to create, optimize, and innovate cutting-edge digital products that make an impact. Benefits! * Hybrid/Remote Flexibility - Work from anywhere that suits you best. * Exciting Tech Stack - Work with the latest tools & frameworks. * Career Growth - Training, mentorship & clear career progression. * Innovative Culture - Work on projects that push boundaries. * Build & Optimize Applications - Develop robust, scalable, and efficient web apps. * Work Across the Stack - Frontend (React, Vue, or Angular) & Backend (Node.js, Python, Java, .NET). * Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
Job Title: Full Stack Developer Location: Brighton (Hybrid) Salary: Up to £50,000 DOE Are you a problem-solver who loves coding across the stack? We're looking for a Full Stack Developer to create, optimize, and innovate cutting-edge digital products that make an impact. Benefits! * Hybrid/Remote Flexibility - Work from anywhere that suits you best. * Exciting Tech Stack - Work with the latest tools & frameworks. * Career Growth - Training, mentorship & clear career progression. * Innovative Culture - Work on projects that push boundaries. * Build & Optimize Applications - Develop robust, scalable, and efficient web apps. * Work Across the Stack - Frontend (React, Vue, or Angular) & Backend (Node.js, Python, Java, .NET). * Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
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FEATURED
Background The world around us is experiencing significant change, the greatest in generations. At McLaren Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future . Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive, transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. This role is in the Connected Intelligence Business unit. Our products have been developed from Formula One technology to provide connectivity services and analytics to a range of customers, primarily in Transportation, but also in Industrial and Motorsport environments.
Background The world around us is experiencing significant change, the greatest in generations. At McLaren Applied, were accelerating the response to that change. Our vision is that our people and technologies will pioneer a better future . Our mission is to achieve breakthroughs in performance. Were at the cutting edge of innovation in industries including automotive, transportation and motorsport. We create solutions that drive efficiency and cost-effectiveness. We want to help to reduce the carbon footprint and become more sustainable. This role is in the Connected Intelligence Business unit. Our products have been developed from Formula One technology to provide connectivity services and analytics to a range of customers, primarily in Transportation, but also in Industrial and Motorsport environments.
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Senior Integration Analyst

Epsom and St Helier NHS Trust
Epsom, Surrey
Competitive
* The pay scales advertised have been confirmed by NHS England, we are awaiting confirmation of when these will be reflected. The new scales can be found here: Pay scales for 2024/25 | NHS Employers At Epsom and St Helier Hospitals, above all we value respect. We put respect at the heart of all we do, by living up to our shared behaviours of kindness, professionalism, positivity and teamwork. This enables us to provide great patient care and make ESTH a great place to work. When you sign up to work with us, you sign up to this and we welcome applicants who share our values. Job overview We are looking for a highly skilled and motivated individual to join our Digital Team. This role is part of a Team who are responsible supporting and delivering integration for clinical applications and projects.
* The pay scales advertised have been confirmed by NHS England, we are awaiting confirmation of when these will be reflected. The new scales can be found here: Pay scales for 2024/25 | NHS Employers At Epsom and St Helier Hospitals, above all we value respect. We put respect at the heart of all we do, by living up to our shared behaviours of kindness, professionalism, positivity and teamwork. This enables us to provide great patient care and make ESTH a great place to work. When you sign up to work with us, you sign up to this and we welcome applicants who share our values. Job overview We are looking for a highly skilled and motivated individual to join our Digital Team. This role is part of a Team who are responsible supporting and delivering integration for clinical applications and projects.
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Fubra is expanding the team at our Aldershot office. Were growing in order to accelerate the development of our existing products and give us the ability to get some exciting new ideas quickly to market. We are looking to hire a talented Development Manager to inspire, lead and run the development team as well as assist us in growing the department through additional hires. Were looking for an experienced lead developer looking to progress their career into management, who can liaise with the companys product owners and other stakeholders and manage a team of talented full stack developers to ensure that business requirements are met on time and to specification. This is not a purely technical position but it is a hands-on role working directly on projects while overseeing the team and work schedules.
Fubra is expanding the team at our Aldershot office. Were growing in order to accelerate the development of our existing products and give us the ability to get some exciting new ideas quickly to market. We are looking to hire a talented Development Manager to inspire, lead and run the development team as well as assist us in growing the department through additional hires. Were looking for an experienced lead developer looking to progress their career into management, who can liaise with the companys product owners and other stakeholders and manage a team of talented full stack developers to ensure that business requirements are met on time and to specification. This is not a purely technical position but it is a hands-on role working directly on projects while overseeing the team and work schedules.
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Cloud Architect

Ramsay Health Care UK Operations Limited
Portsmouth, Hampshire
Competitive
Job Description Remote working Full Time 37.5 hours per week We are seeking to optimise our established Cloud deployment, built on Azure, to provide an AI-augmented agile cloud platform that responds quickly to demand from service users, making it easy to do business with Ramsay for patients, clinicians and partners. Working alongside colleagues in our Digital & Technology function, along with trusted partners in the infrastructure, data, integration, and AI spaces, you will have great opportunities to lead and shape the future of Ramsay. The role As Cloud Architect, you will maintain the cloud platform and the roadmaps of adding new cloud capabilities and collaborate with the business on the adoption of solution designs servicing both clinical and technology areas using cloud platform services and tools. What you will do
Job Description Remote working Full Time 37.5 hours per week We are seeking to optimise our established Cloud deployment, built on Azure, to provide an AI-augmented agile cloud platform that responds quickly to demand from service users, making it easy to do business with Ramsay for patients, clinicians and partners. Working alongside colleagues in our Digital & Technology function, along with trusted partners in the infrastructure, data, integration, and AI spaces, you will have great opportunities to lead and shape the future of Ramsay. The role As Cloud Architect, you will maintain the cloud platform and the roadmaps of adding new cloud capabilities and collaborate with the business on the adoption of solution designs servicing both clinical and technology areas using cloud platform services and tools. What you will do
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Full Stack Developer

Searchlight Cyber Ltd
Portsmouth, Hampshire
Competitive
Searchlight Cyber was founded in 2017 with a mission to stop threat actors from acting with impunity. Its External Cyber Risk Management Platform helps organizations to identify and protect themselves from threats emerging from the cybercriminal underground, with Attack Surface Management and Threat Intelligence tools designed to separate the signal from the noise. It is used by some of the worlds largest enterprises, government and law enforcement agencies, and the Managed Security Service Providers at the forefront of protecting customers from external threats. Find out more at As a Full Stack Developer youll be responsible for developing and maintaining our dark web products - the role is a broad one, youll be closely involved with planning new features, improving existing ones and fixing issues if they arise.
Searchlight Cyber was founded in 2017 with a mission to stop threat actors from acting with impunity. Its External Cyber Risk Management Platform helps organizations to identify and protect themselves from threats emerging from the cybercriminal underground, with Attack Surface Management and Threat Intelligence tools designed to separate the signal from the noise. It is used by some of the worlds largest enterprises, government and law enforcement agencies, and the Managed Security Service Providers at the forefront of protecting customers from external threats. Find out more at As a Full Stack Developer youll be responsible for developing and maintaining our dark web products - the role is a broad one, youll be closely involved with planning new features, improving existing ones and fixing issues if they arise.
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NEW

428 exact matches jobs are outside your preferred location

Quality Assurance Engineer

Rullion Limited
Pimlico, SW1V 1JZ
£400 - £450 per day + Outside IR35
Location: Hybrid (1 day/week in office, Wednesday or Thursday) or Fully Remote Rate: £400 - £450 per day (Outside IR35) Duration: 6 months (potential for extension) We are a leading and innovative company in the renewable energy sector, dedicated to delivering high-quality products and services that consistently exceed client expectations. As part of our ongoing growth and commitment to excellence, we are seeking a talented and motivated Quality Assurance Engineer to join our dynamic team. This is an exciting opportunity to play a key role in shaping the quality of our cutting-edge solutions. We are looking for a detail-oriented and experienced Quality Assurance Engineer to become an integral part of our collaborative team.
Location: Hybrid (1 day/week in office, Wednesday or Thursday) or Fully Remote Rate: £400 - £450 per day (Outside IR35) Duration: 6 months (potential for extension) We are a leading and innovative company in the renewable energy sector, dedicated to delivering high-quality products and services that consistently exceed client expectations. As part of our ongoing growth and commitment to excellence, we are seeking a talented and motivated Quality Assurance Engineer to join our dynamic team. This is an exciting opportunity to play a key role in shaping the quality of our cutting-edge solutions. We are looking for a detail-oriented and experienced Quality Assurance Engineer to become an integral part of our collaborative team.
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C# Developer

Kinetech Recruitment
EC1V, City of London, EC1V 2NX
Up to £450 per day Outside IR35 | Fully Remote
Outside IR35 | Fully Remote |Quick Start) Day Rate up to £450 pd An urgent project requires an experienced C# developer toenhance a Windows service and SSIS package that is used to integrate with Accruent VXMaintain APIs (Verisae) to update work orders for a new customer. Full documentation and working code in place which needs adapting for the new customer. Must be able to interact with the sales team, attending some meetings, so good comms skills essential. In addition to being able to slot into a busy dev team, fit into working practices and crack on with a high degree of autonomy. A short single stage interview process will take place week commencing 12th May so please send your CV immediately. Kinetech is acting as a recruiter in relation to this vacancy. See our website for more information on how we handle your data.
Outside IR35 | Fully Remote |Quick Start) Day Rate up to £450 pd An urgent project requires an experienced C# developer toenhance a Windows service and SSIS package that is used to integrate with Accruent VXMaintain APIs (Verisae) to update work orders for a new customer. Full documentation and working code in place which needs adapting for the new customer. Must be able to interact with the sales team, attending some meetings, so good comms skills essential. In addition to being able to slot into a busy dev team, fit into working practices and crack on with a high degree of autonomy. A short single stage interview process will take place week commencing 12th May so please send your CV immediately. Kinetech is acting as a recruiter in relation to this vacancy. See our website for more information on how we handle your data.
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Technical Product Owner - B2B / B2C / AI / API

Sanderson Recruitment
EC1, City of London
£55000 - £60000 per annum
Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner Fully remote £55,000 - £60,000 Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact.
Technical Product Owner / Technical Product Manager / Software Product Owner / SaaS Product Owner Fully remote £55,000 - £60,000 Our client is passionate bout redefining engineering and AI automation. As we expand into more intelligent and scalable product offerings, we are looking for a Product Manager to lead a core product area, transforming strategic vision into tangible results. This is a hands-on, cross-functional role ideal for someone excited by high-impact delivery, AI innovation, and creating structured product systems in a rapidly growing tech team. As Product Owner, you'll own and drive the roadmap for one of our core product areas. We are looking for someone who thrives in fast-paced environments and enjoys taking an idea from concept to customer impact.
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FEATURED

Enterprise Architect

Red Engine
EC1V, City of London, EC1V 7LQ
£75000.00 - £80000.00 per annum
About Us Hello, we are Red Engine, the team behind the award-winning global brands Flight Club and Electric Shuffle. We're obsessed with disrupting the hospitality industry by creating and delivering the best possible experience - across all venues, products and brands. Our central team covers the full spectrum of skills needed to bring each concept to life from design to marketing, sales to interior design, people and training, to finance, gaming and HR and everything in between. Were not just a team of people, we are dreamers, artists, rocket scientists, content curators, forward thinkers and the industrys finest. We love what we do and are proud to be included in the Sunday Times Best Places to Work 2024
About Us Hello, we are Red Engine, the team behind the award-winning global brands Flight Club and Electric Shuffle. We're obsessed with disrupting the hospitality industry by creating and delivering the best possible experience - across all venues, products and brands. Our central team covers the full spectrum of skills needed to bring each concept to life from design to marketing, sales to interior design, people and training, to finance, gaming and HR and everything in between. Were not just a team of people, we are dreamers, artists, rocket scientists, content curators, forward thinkers and the industrys finest. We love what we do and are proud to be included in the Sunday Times Best Places to Work 2024
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PREMIUMNEW

Android Developer

Alfen Technology Ltd
RG6, Reading
Up to £450 per day
Job Title: Android Developer API & Parser Integration (Contract) We're collaborating with a pioneering technology company that's leading the charge in device-to-mobile integration. Their current Android application is tightly coupled with proprietary hardware, focusing on parsing and displaying real-time data from the device. However, they're now embarking on an ambitious new journey: decoupling the front-end and establishing an API-first ecosystem. This is where you come in. Your expertise will be instrumental in shaping this transition. You'll play a key role in rearchitecting the application, designing and implementing robust APIs, and ensuring seamless communication between the mobile app and the hardware. This is a chance to make a significant impact on the future of their product, while also expanding your skillset and working with cutting-edge technology.
Job Title: Android Developer API & Parser Integration (Contract) We're collaborating with a pioneering technology company that's leading the charge in device-to-mobile integration. Their current Android application is tightly coupled with proprietary hardware, focusing on parsing and displaying real-time data from the device. However, they're now embarking on an ambitious new journey: decoupling the front-end and establishing an API-first ecosystem. This is where you come in. Your expertise will be instrumental in shaping this transition. You'll play a key role in rearchitecting the application, designing and implementing robust APIs, and ensuring seamless communication between the mobile app and the hardware. This is a chance to make a significant impact on the future of their product, while also expanding your skillset and working with cutting-edge technology.
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Contract Python Engineer | City of London 2-3 days pw | £600-650pd Python, PySpark, Linux, PostgreSQL, SQL Server, Databricks, Azure, AWS The Role Our Insurance client are looking for a Senior Python Engineer to play a key role in building their scalable data capabilities; designing ingestion pipelines, high-performance APIs, and real-time data processing systems. Key Responsibilities * Stack: Python, PySpark, Linux, PostgreSQL, SQL Server, Databricks, Azure, AWS * Design and implement large-scale data ingestion, transformation, and analysis solutions * Model datasets and develop indicators to improve data quality * Collaborate on Infrastructure as Code, CI/CD pipelines, and application/ API security standards * Evaluate new data sources and automate quality assurance in the development lifecycle If this looks like a good match, please apply now!
Contract Python Engineer | City of London 2-3 days pw | £600-650pd Python, PySpark, Linux, PostgreSQL, SQL Server, Databricks, Azure, AWS The Role Our Insurance client are looking for a Senior Python Engineer to play a key role in building their scalable data capabilities; designing ingestion pipelines, high-performance APIs, and real-time data processing systems. Key Responsibilities * Stack: Python, PySpark, Linux, PostgreSQL, SQL Server, Databricks, Azure, AWS * Design and implement large-scale data ingestion, transformation, and analysis solutions * Model datasets and develop indicators to improve data quality * Collaborate on Infrastructure as Code, CI/CD pipelines, and application/ API security standards * Evaluate new data sources and automate quality assurance in the development lifecycle If this looks like a good match, please apply now!
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Performance Tester Banking Sector Hybrid working 6-month initial contract with view to extend We are seeking an experienced Performance Tester to join our team on a high-profile Privileged Access Management (PAM) project. The successful candidate will be responsible for designing, executing, and analyzing performance testing scenarios to validate the scalability, stability, and responsiveness of PAM tools. * Collaborate with business analysts, solution architects, and system engineers to understand performance requirements and use cases related to the PAM platform. * Design, script, and execute performance, load, stress, and scalability tests using tools such as LoadRunner, LRE, JMeter, Gatling, or similar * Designed and implemented workload models based on real-user scenarios to simulate peak and average load conditions.
Performance Tester Banking Sector Hybrid working 6-month initial contract with view to extend We are seeking an experienced Performance Tester to join our team on a high-profile Privileged Access Management (PAM) project. The successful candidate will be responsible for designing, executing, and analyzing performance testing scenarios to validate the scalability, stability, and responsiveness of PAM tools. * Collaborate with business analysts, solution architects, and system engineers to understand performance requirements and use cases related to the PAM platform. * Design, script, and execute performance, load, stress, and scalability tests using tools such as LoadRunner, LRE, JMeter, Gatling, or similar * Designed and implemented workload models based on real-user scenarios to simulate peak and average load conditions.
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Cloud Architect

Anson Mccade
EC2, City of London, EC2M 7PP
GBP 100,000.00 - 120,000.00 per year
£100,000 - 120,000 GBP Hybrid WORKING Location: United Kingdom (Greater London) Type: Permanent Location: London (Hybrid) Salary: £100,000 - £120,000 depending on experience Our client, a tier 1 IT services provider, is offering an exciting Cloud Architect leadership role tasked with building and leading a team of architects to deliver cloud infrastructure projects. The company specialises in designing and building mission-critical technology systems and has a fantastic reputation for progression, both vertical and horizontal. * Oversee the entire project end to end from planning through to delivery * Position yourself as the SME to the client and advise on targets and progress * Assemble a team and unite the various stakeholders internally and on the client side * Develop a deep understanding of the needs and desired outcomes of the project
£100,000 - 120,000 GBP Hybrid WORKING Location: United Kingdom (Greater London) Type: Permanent Location: London (Hybrid) Salary: £100,000 - £120,000 depending on experience Our client, a tier 1 IT services provider, is offering an exciting Cloud Architect leadership role tasked with building and leading a team of architects to deliver cloud infrastructure projects. The company specialises in designing and building mission-critical technology systems and has a fantastic reputation for progression, both vertical and horizontal. * Oversee the entire project end to end from planning through to delivery * Position yourself as the SME to the client and advise on targets and progress * Assemble a team and unite the various stakeholders internally and on the client side * Develop a deep understanding of the needs and desired outcomes of the project
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PREMIUM
£300-£400 per day (inside IR35 via Umbrella company) - 12 month+ contract A new and exciting opportunity to assist a global Automotive brand in the implementation of a critical project to deliver the next generation of Electric Vehicle - EV Connected Services. Ideally a commercially astute business manager with experience of managing projects, involvement in tenders, strong communication and presentation skills, and ideally direct experience of connected services and automotive. The role holder will need to blend their skills in project management, sales/business development, product management, into a cohesive strategy that can deliver our clients ambitious targets in this area. * Knowledge of the Automotive industry * Product knowledge of the EV market and Connective Services * Good communication skills, both verbal and written
£300-£400 per day (inside IR35 via Umbrella company) - 12 month+ contract A new and exciting opportunity to assist a global Automotive brand in the implementation of a critical project to deliver the next generation of Electric Vehicle - EV Connected Services. Ideally a commercially astute business manager with experience of managing projects, involvement in tenders, strong communication and presentation skills, and ideally direct experience of connected services and automotive. The role holder will need to blend their skills in project management, sales/business development, product management, into a cohesive strategy that can deliver our clients ambitious targets in this area. * Knowledge of the Automotive industry * Product knowledge of the EV market and Connective Services * Good communication skills, both verbal and written
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Head of Data Science - London - Fintech

Transparent Technologies
London
£100000 - £130000 per annum + 20% bonus, pension, healthcare
Head of Data Science (Hands-On) - Fintech - London (Hybrid, 2-3 Days/Week) - Up to £130k + 20% Bonus + Benefits A high-growth and profitable fintech, headquartered in London, is seeking a hands-on Head of Data Science to shape the future of their AI-driven strategy. In this pivotal role, you'll lead a team of four Data Scientists while staying actively involved in coding and model development. You'll have the autonomy to make strategic decisions that directly impact the company's growth and performance. This is an opportunity to work in a fast-paced, agile environment that feels more like a tech startup than a traditional financial institution. * Proven experience with Python and SQL * Strong expertise in AI, OpenAI, and LLMs * A track record in machine learning modelling * Experience with tools such as SageMaker and DataRobot
Head of Data Science (Hands-On) - Fintech - London (Hybrid, 2-3 Days/Week) - Up to £130k + 20% Bonus + Benefits A high-growth and profitable fintech, headquartered in London, is seeking a hands-on Head of Data Science to shape the future of their AI-driven strategy. In this pivotal role, you'll lead a team of four Data Scientists while staying actively involved in coding and model development. You'll have the autonomy to make strategic decisions that directly impact the company's growth and performance. This is an opportunity to work in a fast-paced, agile environment that feels more like a tech startup than a traditional financial institution. * Proven experience with Python and SQL * Strong expertise in AI, OpenAI, and LLMs * A track record in machine learning modelling * Experience with tools such as SageMaker and DataRobot
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Senior .Net Developer

Halian Technology Limited
W1, Central London
From £70,000 to £90,000 per annum Plus bonus and benefits
My client is seeking a highly skilled and experiencedSenior .NET Developerto join dynamic engineering team. The ideal candidate will have a strong background in building scalable applications using the Microsoft .NET stack, proven experience withAWS cloud services, and a deep understanding of theFinTechdomain. This role is crucial to driving the development of our next-generation financial solutions, contributing to architecture decisions, and mentoring junior developers. * Design, develop, and maintain robust, scalable, and secure applications using .NET (C#, .NET Core/.NET 6+) * Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more * Collaborate with product managers, architects, and other developers to deliver high-quality features and enhancements
My client is seeking a highly skilled and experiencedSenior .NET Developerto join dynamic engineering team. The ideal candidate will have a strong background in building scalable applications using the Microsoft .NET stack, proven experience withAWS cloud services, and a deep understanding of theFinTechdomain. This role is crucial to driving the development of our next-generation financial solutions, contributing to architecture decisions, and mentoring junior developers. * Design, develop, and maintain robust, scalable, and secure applications using .NET (C#, .NET Core/.NET 6+) * Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more * Collaborate with product managers, architects, and other developers to deliver high-quality features and enhancements
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Hybrid working policy: 2 days per week in the office. This is an exciting opportunity for an experienced SharePoint Administrator with experience in Power Platform to be involved in implementing and maturing a service from the ground up. The role will work alongside a SharePoint Delivery / Project Team in delivering SharePoint Online sites and services, alongside a wider adoption of Power Platform. - Manage SharePoint farms, sites, and site collections, ensuring proper configuration, permissions, and availability. - Assist in the administration of the wider M365 Online platform but with a particular focus on SharePoint Online & Power Platform. - Provide end user support, training, and resolve medium to high complexity problem tickets when required. - Configure SharePoint services and settings, web parts, and workflows / Power Automate as needed.
Hybrid working policy: 2 days per week in the office. This is an exciting opportunity for an experienced SharePoint Administrator with experience in Power Platform to be involved in implementing and maturing a service from the ground up. The role will work alongside a SharePoint Delivery / Project Team in delivering SharePoint Online sites and services, alongside a wider adoption of Power Platform. - Manage SharePoint farms, sites, and site collections, ensuring proper configuration, permissions, and availability. - Assist in the administration of the wider M365 Online platform but with a particular focus on SharePoint Online & Power Platform. - Provide end user support, training, and resolve medium to high complexity problem tickets when required. - Configure SharePoint services and settings, web parts, and workflows / Power Automate as needed.
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M365 Administrator

DGH Recruitment
City of London, London
£50000 - £60000 per annum
London (Farringdon) Hybrid working policy: 2 days per week in the office. This is an exciting opportunity for an experienced M365 Administrator with experience across SharePoint and Power Platform to be involved in implementing and maturing a service from the ground up. The role will work alongside a SharePoint Delivery / Project Team in delivering SharePoint Online sites and services, alongside a wider adoption of Power Platform. - Manage SharePoint farms, sites, and site collections, ensuring proper configuration, permissions and availability. - Assist in the administration of the wider M365 Online platform but with a particular focus on SharePoint Online & Power Platform. - Provide end user support, training, and resolve medium to high complexity problem tickets when required.
London (Farringdon) Hybrid working policy: 2 days per week in the office. This is an exciting opportunity for an experienced M365 Administrator with experience across SharePoint and Power Platform to be involved in implementing and maturing a service from the ground up. The role will work alongside a SharePoint Delivery / Project Team in delivering SharePoint Online sites and services, alongside a wider adoption of Power Platform. - Manage SharePoint farms, sites, and site collections, ensuring proper configuration, permissions and availability. - Assist in the administration of the wider M365 Online platform but with a particular focus on SharePoint Online & Power Platform. - Provide end user support, training, and resolve medium to high complexity problem tickets when required.
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Integration engineer

I3 Resourcing Limited
London
£550 - £850 per day
City of London - Contract Flexible day rate INSIDE IR35 APIs ; Data Flows ; Azure Logic Apps Working with prestigious London market insurer I am looking for a hands-on, forward-thinking Integration Engineer to help bring coherence and orchestration to a fragmented technology environment. About the role- * Design and implement integration solutions across our technology estate to enable seamless data and system interoperability. * Assess existing systems and integrations, identifying areas of inefficiency, duplication, or fragility, and lead remediation efforts. * Champion modern integration platforms, tools, and patterns (e.g., APIs, event-driven architecture, messaging systems). * Act as a bridge between architecture, engineering, and other technology teams to ensure integration aligns with strategic goals and user needs. Experience required-
City of London - Contract Flexible day rate INSIDE IR35 APIs ; Data Flows ; Azure Logic Apps Working with prestigious London market insurer I am looking for a hands-on, forward-thinking Integration Engineer to help bring coherence and orchestration to a fragmented technology environment. About the role- * Design and implement integration solutions across our technology estate to enable seamless data and system interoperability. * Assess existing systems and integrations, identifying areas of inefficiency, duplication, or fragility, and lead remediation efforts. * Champion modern integration platforms, tools, and patterns (e.g., APIs, event-driven architecture, messaging systems). * Act as a bridge between architecture, engineering, and other technology teams to ensure integration aligns with strategic goals and user needs. Experience required-
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Next.JS Software Engineer - Remote

Exposed Solutions
W1B, West London
From £60,000 to £80,000 per annum
Our client is on a mission to shape the future of AI. As they expand their development team, they are looking for a talented Full Stack Developer to help build outstanding features that customers love. As a Full Stack Developer, you will be responsible for designing, developing, and maintaining applications using Next.js, Supabase, and TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of users. * Design and implement scalable and high-performance web applications using Next.js and Supabase. * Develop clean, maintainable, and efficient code in TypeScript. * Collaborate with cross-functional teams to define, design, and deliver new features and enhancements. * Participate in code reviews to maintain high standards of quality and best practices.
Our client is on a mission to shape the future of AI. As they expand their development team, they are looking for a talented Full Stack Developer to help build outstanding features that customers love. As a Full Stack Developer, you will be responsible for designing, developing, and maintaining applications using Next.js, Supabase, and TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of users. * Design and implement scalable and high-performance web applications using Next.js and Supabase. * Develop clean, maintainable, and efficient code in TypeScript. * Collaborate with cross-functional teams to define, design, and deliver new features and enhancements. * Participate in code reviews to maintain high standards of quality and best practices.
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Security DevOps Engineer - Tunbridge Wells

GMA Consulting
TN1, Tunbridge Wells
£80,000-£85,000K base + Bonus + benefits
Hybrid working model - 2-3 days per week in the office The company is a leader in its field and is an Insurance business with an excellent reputation both in the UK and abroad. This is an excellent opportunity to be involved in the development of a brand new digital platform that will be used across the business. As a Security Engineer, you’ll provide hands-on technical expertise to guide software development, delivery and continuous improvement focusing on risk and security. You’ll help evolve our new Digital Platform so that its secure and compliant with both internal and industry regulations. You’ll analyse new feature code to identify security risks and work with engineers to mitigate them, working and applying modern security standards such as OWASP CI/CD, DSOMM, SAMM and Cloud Security Posture management systems such as Azure Defender and Prisma Cloud.
Hybrid working model - 2-3 days per week in the office The company is a leader in its field and is an Insurance business with an excellent reputation both in the UK and abroad. This is an excellent opportunity to be involved in the development of a brand new digital platform that will be used across the business. As a Security Engineer, you’ll provide hands-on technical expertise to guide software development, delivery and continuous improvement focusing on risk and security. You’ll help evolve our new Digital Platform so that its secure and compliant with both internal and industry regulations. You’ll analyse new feature code to identify security risks and work with engineers to mitigate them, working and applying modern security standards such as OWASP CI/CD, DSOMM, SAMM and Cloud Security Posture management systems such as Azure Defender and Prisma Cloud.
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What is the average salary for API in West Sussex?

Average salary per year
£67,499

The average salary for a API in West Sussex is £67,499. API in West Sussex salaries range from £52,499 to £71,249.

Frequently Asked Questions

How many contract API jobs are there in West Sussex?
There are 9 contract API jobs within 20 miles of West Sussex available on Jobsite right now.
What other similar jobs are there to contract API jobs in West Sussex?
As well as contract API jobs in West Sussex, you can find contract IT, Software Development, Management, amongst many others.