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63 Part Time API jobs in Barnsbury, North London + 20 miles
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Senior Backend Engineer TypeScript Node API
Senior Backend Engineer TypeScript Node API
Client Server
The City, City of London (EC4), EC2V
£85000 - £100000 per annum + shares + benefits
Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? You could be joining a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically - improving liquidity and efficiency for all participants as the platform scales. As a Senior Backend Engineer you will collaborate with a small team of technologists and successful entrepreneurs to design and implement intelligent solutions to business needs, with a focus on TypeScript and Node backend systems but also with exposure to and occasional frontend work.
Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k Are you a senior technologist looking for an opportunity to progress your career in a hands-on role where you can make an impact? You could be joining a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically - improving liquidity and efficiency for all participants as the platform scales. As a Senior Backend Engineer you will collaborate with a small team of technologists and successful entrepreneurs to design and implement intelligent solutions to business needs, with a focus on TypeScript and Node backend systems but also with exposure to and occasional frontend work.
PREMIUM
TypeScript Developer Full Stack - Fintech
TypeScript Developer Full Stack - Fintech
Client Server
Shoreditch, East London (E1), EC2A
£50000 - £60000 per annum + benefits
TypeScript Developer / Engineer (Full Stack API React) London / WFH to £60k Are you a bright, ambitious technologist who enjoys working with a range of programming languages across the full tech stack? You could progress your career at a scaling Fintech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically, improving liquidity and efficiency for all participants as the platform scales. * Salary to £60k * Stock options * Excellent career growth * Remote working
TypeScript Developer / Engineer (Full Stack API React) London / WFH to £60k Are you a bright, ambitious technologist who enjoys working with a range of programming languages across the full tech stack? You could progress your career at a scaling Fintech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match option interests electronically, improving liquidity and efficiency for all participants as the platform scales. * Salary to £60k * Stock options * Excellent career growth * Remote working
NEWPREMIUM
C++ Developer MacOS API
C++ Developer MacOS API
Client Server
The City, City of London (EC4), EC2V
£65000 - £80000 per annum + benefits
C++ Developer / Engineer (C++ Mac Extensions) WFH / London to £80k Do you have C++ coding skills combined with experience of developing Mac Extensions? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the commands and data structures to extract key metadata which is then analysed by in-house algorithms and allows customers to detect hackers, malware, data leakage and other malicious activity. As a C++ Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations. You can work from home most of the time, meeting up with colleagues in the London office once or twice a month.
C++ Developer / Engineer (C++ Mac Extensions) WFH / London to £80k Do you have C++ coding skills combined with experience of developing Mac Extensions? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the commands and data structures to extract key metadata which is then analysed by in-house algorithms and allows customers to detect hackers, malware, data leakage and other malicious activity. As a C++ Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations. You can work from home most of the time, meeting up with colleagues in the London office once or twice a month.
PREMIUM
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My London based client is looking to recruit an experienced Senior QA and Test Analyst with in depth expertise working with TOSCA. Working in the Quality Assurance and Test team this role sits within the SAP platform division and reports in to the Product & Platform QA and Test Manager. Within this lead role, you will be tasked with ensuring quality outcomes align with business strategy - focusing specifically on all SAP systems and integrated app interfaces for both Finance and HR systems automation. * Champion quality and enable successful change, engaging with all stakeholders * Ensure rapid delivery is supported through test automation, test tools and best practice * Ensure quality needs and expectations are met * Ensure stakeholders have access to quality information * Lead at all levels of the Quality lifecycle * Inform and align on Quality approach
My London based client is looking to recruit an experienced Senior QA and Test Analyst with in depth expertise working with TOSCA. Working in the Quality Assurance and Test team this role sits within the SAP platform division and reports in to the Product & Platform QA and Test Manager. Within this lead role, you will be tasked with ensuring quality outcomes align with business strategy - focusing specifically on all SAP systems and integrated app interfaces for both Finance and HR systems automation. * Champion quality and enable successful change, engaging with all stakeholders * Ensure rapid delivery is supported through test automation, test tools and best practice * Ensure quality needs and expectations are met * Ensure stakeholders have access to quality information * Lead at all levels of the Quality lifecycle * Inform and align on Quality approach
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Lead Data Engineer AWS Snowflake
Lead Data Engineer AWS Snowflake
Client Server
Shoreditch, East London (E1), EC2A
€90000 - €110000 per annum
Are you a technologist Data Engineer with strong technical leadership skills? You could be progressing your career in an impactful, hands-on Lead Data Engineer role at a growing technology company as they expand their UK presence. As a Lead Data Engineer you'll take responsibility for the team's engineering practices such as code reviews and CI/CD and for overall code quality and test coverage. You'll plan and manage the team's Sprints, collaborating closely with product and engineering management to deliver solutions across a range of complex data sources and data integrations, including Data Warehouses / Data Lakes, Data Marts, data ingestion and record matching and merging. You'll be able to work from home most of the time, meeting up with colleagues in the London office once or twice a week.
Are you a technologist Data Engineer with strong technical leadership skills? You could be progressing your career in an impactful, hands-on Lead Data Engineer role at a growing technology company as they expand their UK presence. As a Lead Data Engineer you'll take responsibility for the team's engineering practices such as code reviews and CI/CD and for overall code quality and test coverage. You'll plan and manage the team's Sprints, collaborating closely with product and engineering management to deliver solutions across a range of complex data sources and data integrations, including Data Warehouses / Data Lakes, Data Marts, data ingestion and record matching and merging. You'll be able to work from home most of the time, meeting up with colleagues in the London office once or twice a week.
NEWPREMIUM
Engineering Manager Java AI - FinTech
Engineering Manager Java AI - FinTech
Client Server
Shoreditch, East London (E1), EC2A
£125000 - £140000 per annum + bonus + benefits
Engineering Manager (Java AI) London / WFH to £140k Are you a technical leader with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Engineering Manager role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. * Salary to £140k + Bonus * Pension, Private Medical Care, Life Assurance * Option to buy or sell holiday days * Wellness benefits and gym subsidy * Childcare vouchers * Enhanced paternity leave including shared parental pay and leave * Employee led LGBTQ+, Women's, Black and Parents & Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture * Plus a range of other perks
Engineering Manager (Java AI) London / WFH to £140k Are you a technical leader with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Engineering Manager role at a global FinTech / CFD trading company that has been consistently voted as one of the UKs top employers. * Salary to £140k + Bonus * Pension, Private Medical Care, Life Assurance * Option to buy or sell holiday days * Wellness benefits and gym subsidy * Childcare vouchers * Enhanced paternity leave including shared parental pay and leave * Employee led LGBTQ+, Women's, Black and Parents & Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture * Plus a range of other perks
NEWPREMIUM
Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. € 10 billion, operating in 67 countries under two brands Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris. Thepurpose of Atosis to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence.
Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. € 10 billion, operating in 67 countries under two brands Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris. Thepurpose of Atosis to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence.
NEWFEATURED
Java Developer AWS React Full Stack - Start-up
Java Developer AWS React Full Stack - Start-up
Client Server
The City, City of London (EC4), EC2V
£70000 - £80000 per annum + benefits
Java Developer / Software Engineer (AWS React Full Stack) London / WFH to £80k Are you a technologist Java Developer looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with a hugely successful track record. As a Java Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form the core of the platform. You'll collaborate closely with the Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI.
Java Developer / Software Engineer (AWS React Full Stack) London / WFH to £80k Are you a technologist Java Developer looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start-up, set up by a small team of finance and technology entrepreneurs with a hugely successful track record. As a Java Developer you will join a small team to build systems from the ground up, working across the full technology stack with a focus on designing, developing and deploying cloud-native microservices that form the core of the platform. You'll collaborate closely with the Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI.
NEWPREMIUM
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Home-based within the UK About Us At Family Action, we transform lives by providing practical, emotional, and financial support to those experiencing poverty, disadvantage, and social isolation. Since 1869, weve been building stronger families, and today, we work with over 60,000 families across more than 190 services. We also support thousands more through national programmes and grants, helping everyone find the tools to overcome challenges and thrive. Were now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week. TheBenefits - Salary of £43,042 per annum (inclusive of £1,044 market supplement and £480 home working allowance) - An annual paid leave entitlement of 30 working days plus bank holidays - Up to 6% matched-pension contributions
Home-based within the UK About Us At Family Action, we transform lives by providing practical, emotional, and financial support to those experiencing poverty, disadvantage, and social isolation. Since 1869, weve been building stronger families, and today, we work with over 60,000 families across more than 190 services. We also support thousands more through national programmes and grants, helping everyone find the tools to overcome challenges and thrive. Were now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week. TheBenefits - Salary of £43,042 per annum (inclusive of £1,044 market supplement and £480 home working allowance) - An annual paid leave entitlement of 30 working days plus bank holidays - Up to 6% matched-pension contributions
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Dynamics 365 Finance Developer
Dynamics 365 Finance Developer
Eviden UK International Ltd
UK
Attractive salary plus excellent benefits.
* Salary: Attractive salary plus excellent benefits. * Location: UK Wide * Remote * Travel required: May require UK domestic travel, as the need arises. Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. € 10 billion, operating in 67 countries under two brands Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris. Our Dynamics Practice and Power Platform Team is at the forefront of delivering innovative, high-impact solutions to leading Financial Services organizations and large Government clients.
* Salary: Attractive salary plus excellent benefits. * Location: UK Wide * Remote * Travel required: May require UK domestic travel, as the need arises. Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. € 10 billion, operating in 67 countries under two brands Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris. Our Dynamics Practice and Power Platform Team is at the forefront of delivering innovative, high-impact solutions to leading Financial Services organizations and large Government clients.
FEATURED
Senior Full Stack Engineer React TypeScript
Senior Full Stack Engineer React TypeScript
Client Server
The City, City of London (EC4), EC2V
£80000 - £90000 per annum + benefits
Senior Full Stack Engineer / Developer (React Redux TypeScript Node.js) Remote UK to £90k Are you a Full Stack Engineer with strong front end development experience with React and Redux? You could be progressing your career in a senior, hands-on role at a scaling Fintech who have built an energy trading platform to revolutionise energy buying for large industrial and commercial users. As a Senior Full Stack Engineer you'll help to build a seamless digital experience that makes complex energy systems simple, powerful and intuitive, creating user interfaces that bring trading and billing into one flexible product using React and Redux. You'll also contribute to maintenance of current systems, assist with the migration from JavaScript microservices to a monorepo architecture using TypeScript and integrate APIs and backend services.
Senior Full Stack Engineer / Developer (React Redux TypeScript Node.js) Remote UK to £90k Are you a Full Stack Engineer with strong front end development experience with React and Redux? You could be progressing your career in a senior, hands-on role at a scaling Fintech who have built an energy trading platform to revolutionise energy buying for large industrial and commercial users. As a Senior Full Stack Engineer you'll help to build a seamless digital experience that makes complex energy systems simple, powerful and intuitive, creating user interfaces that bring trading and billing into one flexible product using React and Redux. You'll also contribute to maintenance of current systems, assist with the migration from JavaScript microservices to a monorepo architecture using TypeScript and integrate APIs and backend services.
PREMIUM
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Contract Technical Business Analyst - ServiceNow - Outside IR35
Contract Technical Business Analyst - ServiceNow - Outside IR35
Morson Edge
The City, City of London (EC4), EC4A
£450 - 500 per day
Contract Technical Business Analyst – ServiceNow Outside IR35 | Contract | Hybrid / Remote (UK) | Up to £500 a day I'm seeking an experienced Technical Business Analyst with strong ServiceNow expertise to support a large-scale transformation programme within a complex enterprise environment. This is a contract role operating Outside IR35, ideal for a delivery-focused consultant who can bridge the gap between business stakeholders and technical teams. Key Responsibilities * Elicit, analyse, and document business and technical requirements across ServiceNow modules * Act as the primary interface between stakeholders, developers, architects, and ServiceNow platform teams * Translate business needs into clear functional and technical specifications (user stories, process flows, data models)
Contract Technical Business Analyst – ServiceNow Outside IR35 | Contract | Hybrid / Remote (UK) | Up to £500 a day I'm seeking an experienced Technical Business Analyst with strong ServiceNow expertise to support a large-scale transformation programme within a complex enterprise environment. This is a contract role operating Outside IR35, ideal for a delivery-focused consultant who can bridge the gap between business stakeholders and technical teams. Key Responsibilities * Elicit, analyse, and document business and technical requirements across ServiceNow modules * Act as the primary interface between stakeholders, developers, architects, and ServiceNow platform teams * Translate business needs into clear functional and technical specifications (user stories, process flows, data models)
TypeScript Developer Node AWS
TypeScript Developer Node AWS
Client Server
Shoreditch, East London (E1), EC2A
£78000 - £85000 per annum + benefits
TypeScript Developer / Backend Software Engineer (Node AWS Python) Remote to £85k Are you a backend focussed TypeScript Developer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a TypeScript Developer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle.
TypeScript Developer / Backend Software Engineer (Node AWS Python) Remote to £85k Are you a backend focussed TypeScript Developer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You could be joining a scaling AI software solutions provider in a senior, hands-on role. As a TypeScript Developer you will build new features with a focus on backend services and APIs using TypeScript, Node and AWS, also with some Python work for LLM integration. You'll take ownership of projects, working across the full development lifecycle from requirements through to delivery and help to drive the adoption of AI within the development lifecycle.
PREMIUM
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We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance
We need talented engineers with a strong low-level graphics and GPU development background on the Android platform, ideally with experience of working in the consumer electronics industry. This contract will be hybrid (3 days a week onsite, 2 remote), based near Egham. Its within IR35 but offering a good rate to offset that! The successful candidate will contribute to new, high-performance graphics solutions, integrate our solutions with new hardware platforms, optimise the Android OS graphics stack, benchmark our systems against competitors, work with 3rd party software developers and generally ensure that we have the best possible graphics experience on the market. Role and Responsibilities Develop innovations to optimise real-time rendering pipelines and deliver class-leading performance
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Software Development Engineer in Test (SDET)
Software Development Engineer in Test (SDET)
ARC IT Recruitment Ltd
South West London (SW1)
£55,000 per annum
Were looking for an experienced SDET to join a high-performing engineering team working on a high traffic, large-scale e-commerce platform. Youll play a key role in building and evolving a scalable, fully automated testing framework, helping ensure fast, safe and high-quality software delivery. Working closely with engineers, product and stakeholders, youll drive quality across web applications and APIs while tackling interesting technical challenges. * Designing and maintaining test automation frameworks (JavaScript/TypeScript) * Automated and manual testing of web applications and APIs * Test planning, estimation, execution and defect management * Integrating automated tests into CI/CD pipelines * Collaborating across teams to improve quality and close requirement gaps * Proven experience in SDET or test automation roles
Were looking for an experienced SDET to join a high-performing engineering team working on a high traffic, large-scale e-commerce platform. Youll play a key role in building and evolving a scalable, fully automated testing framework, helping ensure fast, safe and high-quality software delivery. Working closely with engineers, product and stakeholders, youll drive quality across web applications and APIs while tackling interesting technical challenges. * Designing and maintaining test automation frameworks (JavaScript/TypeScript) * Automated and manual testing of web applications and APIs * Test planning, estimation, execution and defect management * Integrating automated tests into CI/CD pipelines * Collaborating across teams to improve quality and close requirement gaps * Proven experience in SDET or test automation roles
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Senior Automation Test Engineer - ETRM / Trading Platforms
Senior Automation Test Engineer - ETRM / Trading Platforms
Data Careers
Southwark, South East London (SE1), SE1
£70000 - £90000 per annum
Permanent Location: London / Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a hybrid role and you will be required to work on client site in London 2 / 3 days a week. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows
Permanent Location: London / Home (Hybrid) Salary: £70,000 - £90,000 (+ benefits) Skills: ETRM platform experience, (Openlink Endur, Findur etc.), Automation testing Python, Java etc. We are looking to recruit an Automation Tester, with trading platform experience, for a leading software company that delivers advanced solutions for trading and risk management across global financial and energy markets. This is a hybrid role and you will be required to work on client site in London 2 / 3 days a week. What you'll bring * Programming & Scripting: Python, Java, JavaScript, C++, Scriban * Web Technologies: RESTful APIs, HTTP, JSON, HTML, CSS, Node.js * Databases: SQL Server, MySQL, PostgreSQL, MongoDB * Tools & Frameworks: Git, Docker, Jenkins, Kubernetes, Agile (Scrum & Kanban), JIRA, Pytest, Powershell * Operating Systems: Linux, Windows
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Business Analyst
Business Analyst
REC SOLUTIONS LIMITED
The City, City of London (EC4), EC4N
Competitive base salary plus bonus and benefits
***Hybrid, 3 days a week in the office 2 days remote*** An excellent opportunity has arisen for a Business Analyst to join a forward thinking, innovative exchange based in the City, London working with some cutting edge technologies. Benefits (not exhaustive list) - Business Analyst (FinTech, Financial Services, Trading, Equities, Equity) * Competitive salary * 25 days annual leave - not including bank holidays * Can opt to join Private Medical insurance scheme * Hybrid working * Flexible working hours * Company pension * Group Policies Life Assurance, Income Protection and Critical Illness * Discretionary bonus * Can opt to join Electric Car Scheme * Enhanced Maternity and Paternity Policy * Can opt to join Workplace Nursery Scheme * Length of service holiday entitlement
***Hybrid, 3 days a week in the office 2 days remote*** An excellent opportunity has arisen for a Business Analyst to join a forward thinking, innovative exchange based in the City, London working with some cutting edge technologies. Benefits (not exhaustive list) - Business Analyst (FinTech, Financial Services, Trading, Equities, Equity) * Competitive salary * 25 days annual leave - not including bank holidays * Can opt to join Private Medical insurance scheme * Hybrid working * Flexible working hours * Company pension * Group Policies Life Assurance, Income Protection and Critical Illness * Discretionary bonus * Can opt to join Electric Car Scheme * Enhanced Maternity and Paternity Policy * Can opt to join Workplace Nursery Scheme * Length of service holiday entitlement
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Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
Up to £475 Per day inside IR35 Long term contract Remote UK/EU We’re looking for a BE Engineer to design and build high-quality backend systems and data pipelines that power the analytics platform. You’ll collaborate with engineers and the Product team across the full software lifecycle, leading on scalable services that ingest, transform and deliver data to our frontend applications and customers. You’ll bring strong Python skills, experience with microservices and data ingestion/ETL pipelines, and an eye for clean, maintainable code. Familiarity with AI-assisted dev tools (GitHub Copilot, Cursor, Windsurf, Devin) is a plus — we encourage using them to boost developer velocity and quality. What you’ll do * Design and implement robust, scalable backend services in Python * Own and improve data ingestion & processing pipelines
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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Canada Life UK looks after the retirement, investment and protection needs of individuals, families and companies. We help to build better futures for our customers, our intermediaries and our employees by operating as a modern, agile and welcoming organisation. Part of our parent company Great-West Lifeco, Canada Life UK has operated in the United Kingdom since 1903. We have hundreds of respected and supported employees committed to doing the right thing for our customers and colleagues. Canada Life UK is transforming to create a more customer-focused business by providing our customers with expertise on financial and tax planning, offering home finance and annuities propositions, and providing collective fund solutions to third party customers. Job Purpose
Canada Life UK looks after the retirement, investment and protection needs of individuals, families and companies. We help to build better futures for our customers, our intermediaries and our employees by operating as a modern, agile and welcoming organisation. Part of our parent company Great-West Lifeco, Canada Life UK has operated in the United Kingdom since 1903. We have hundreds of respected and supported employees committed to doing the right thing for our customers and colleagues. Canada Life UK is transforming to create a more customer-focused business by providing our customers with expertise on financial and tax planning, offering home finance and annuities propositions, and providing collective fund solutions to third party customers. Job Purpose
PREMIUM
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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£120,000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent We are partnering with a well-established organisation delivering complex, enterprise-scale technology and integration solutions for large clients across multiple industries. The business works closely with senior executives to design, govern, and deliver integration architectures that enable transformation and long-term commercial value. The Role Our client is seeking an Integration Architect to provide strategic leadership across enterprise integration initiatives. This role operates at executive level, shaping integration strategy, directing large-scale programs, and influencing technology decisions that drive measurable business outcomes. You will act as a trusted advisor to C-suite stakeholders while contributing to commercial growth and capability development.
£120,000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent We are partnering with a well-established organisation delivering complex, enterprise-scale technology and integration solutions for large clients across multiple industries. The business works closely with senior executives to design, govern, and deliver integration architectures that enable transformation and long-term commercial value. The Role Our client is seeking an Integration Architect to provide strategic leadership across enterprise integration initiatives. This role operates at executive level, shaping integration strategy, directing large-scale programs, and influencing technology decisions that drive measurable business outcomes. You will act as a trusted advisor to C-suite stakeholders while contributing to commercial growth and capability development.
PREMIUM
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Senior DeFi Backend Engineer
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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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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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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