Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
717 exact matches jobs are outside your preferred location
)
Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools
Experience implementing REST APIs (knowledge in API security would be a plus), unit tests and using a test-driven development approach and associated testing tools
FEATUREDNEW
You'll design and develop scalable, secure applications, contribute to API integration, and help shape the platform from day one. Java, Spring Boot, SQL, REST API's, React Native, Mobile, Cross-platform, AWS, Docker, Fintech, Trading, Finance, Financial Services, London
You'll design and develop scalable, secure applications, contribute to API integration, and help shape the platform from day one. Java, Spring Boot, SQL, REST API's, React Native, Mobile, Cross-platform, AWS, Docker, Fintech, Trading, Finance, Financial Services, London
NEW
)
.NET Developer
.NET Developer
Halian Technology Limited
W1, Central London
From £55,000 to £70,000 per annum Plus bonus and benefits
Work on cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
Work on cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
NEW
Backend Java Developer - London
Backend Java Developer - London
Transparent Technologies
London
£60000 - £80000 per annum + bonus, bens
REST API design and development - Java, Spring Boot, SQL, REST API, AWS, Docker, Microservices, Backend Developer, Fintech, Trading, Finance, Financial Services, London
REST API design and development - Java, Spring Boot, SQL, REST API, AWS, Docker, Microservices, Backend Developer, Fintech, Trading, Finance, Financial Services, London
NEW
)
Senior Full Stack Developer Java JavaScript React
Senior Full Stack Developer Java JavaScript React
Client Server
The City, EC2
£70000 - £80000 per annum + bonus + benefits
Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k - Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based office three days a week, there's a smart dress code and flexibility to work from home two da
Senior Full Stack Developer / Software Engineer (Java JavaScript React) London to £80k - Well established trading brokerage is seeking a Senior Full Stack Developer as they expand into UK markets. As a Senior Full Stack Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development lifecycle and will quickly see the impact of your work, developing high quality, scalable and secure trading applications, working across the full tech stack from Java on the backend through to JavaScript / TypeScript, React and React Native front end work. You'll join a team of finance entrepreneurs and technologists in City based office three days a week, there's a smart dress code and flexibility to work from home two da
PREMIUMNEW
)
Workday Enterprise Systems Developer
Workday Enterprise Systems Developer
The Francis Crick Institute
Euston, NW1 1AT
£51,591 - £58,470 per annum
API & Web Services: Understanding of REST/SOAP APIs, JSON, and XML for integration work.
API & Web Services: Understanding of REST/SOAP APIs, JSON, and XML for integration work.
PREMIUMNEW
Senior .Net Developer
Senior .Net Developer
Halian Technology Limited
W1, Central London
From £70,000 to £90,000 per annum Plus bonus and benefits
Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
Lead cloud-native solution development using AWS services such as Lambda, API Gateway, DynamoDB, S3, ECS, and more
NEW
)
Experience with API development and Git.
Experience with API development and Git.
NEW
)
API & Database Development - Experienced in building and maintaining robust APIs and managing the databases that support them.
API & Database Development - Experienced in building and maintaining robust APIs and managing the databases that support them.
FEATUREDNEW
)
Software Engineer | Hybrid | £90,000 | React.js | Python | TypeScript | AWS - Are you passionate about renewable energy and seeking an opportunity to make a positive impact on the environment? La Fosse has partnered with a rapidly growing renewable energy company, seeking highly motivated Senior Full Stack Engineers to join their close-knit product team and drive innovation in sustainable technology. Core Tech Stack: React.js, Python, TypeScript, FAST APIs, SQL Alchemy, Docker, AWS * Lead the development and enhancement of their in-house product management and customer-facing platforms, achieving feature parity with an existing SaaS solution and driving innovation post-migration to build a scalable, secure, market-leading system. * Build scalable, secure full-stack applications using React.js, TypeScript, Python, and FastAPI, following modern development best practise
Software Engineer | Hybrid | £90,000 | React.js | Python | TypeScript | AWS - Are you passionate about renewable energy and seeking an opportunity to make a positive impact on the environment? La Fosse has partnered with a rapidly growing renewable energy company, seeking highly motivated Senior Full Stack Engineers to join their close-knit product team and drive innovation in sustainable technology. Core Tech Stack: React.js, Python, TypeScript, FAST APIs, SQL Alchemy, Docker, AWS * Lead the development and enhancement of their in-house product management and customer-facing platforms, achieving feature parity with an existing SaaS solution and driving innovation post-migration to build a scalable, secure, market-leading system. * Build scalable, secure full-stack applications using React.js, TypeScript, Python, and FastAPI, following modern development best practise
FEATUREDNEW
Hands-on experience with Lambda, DynamoDB, S3, API Gateway, CloudWatch
Hands-on experience with Lambda, DynamoDB, S3, API Gateway, CloudWatch
NEW
)
Senior Test Engineer – AWS Node Testing – Accounts
Senior Test Engineer – AWS Node Testing – Accounts
Spyrosoft Ltd
London
FTC (full-time) + benefits + pension
API testing (RestAssured or similar) The successful applicant will have strong Playwright/JavaScript knowledge, strong experience of API testing, have written automated performance tests, be comfortable working with AWS services and experience using monitoring tools * be experienced with API testing (RestAssured and Java knowledge would be beneficial)
API testing (RestAssured or similar) The successful applicant will have strong Playwright/JavaScript knowledge, strong experience of API testing, have written automated performance tests, be comfortable working with AWS services and experience using monitoring tools * be experienced with API testing (RestAssured and Java knowledge would be beneficial)
NEW
)
Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
Database & API Development - Design and maintain SQL & NoSQL databases and RESTful APIs.
FEATURED
)
Python SQL Software Engineer - Corporate Finance
Python SQL Software Engineer - Corporate Finance
McGregor Boyall Associates Limited
The City, EC3V 9AA
£90000 - £100000 per annum + Great Bonus + Benefits + Pension
AI Tools: Demonstrable ability to create custom GPT's and Chatbots using AI Tools (we use Google Gemini API (and Notebook LM), Anthropics Claude AI, Microsoft CoPilot, and OpenAI's Chat GPT).
AI Tools: Demonstrable ability to create custom GPT's and Chatbots using AI Tools (we use Google Gemini API (and Notebook LM), Anthropics Claude AI, Microsoft CoPilot, and OpenAI's Chat GPT).
NEW
)
Perform gap analyses of applicable design and fabrication codes (ASME, EN/ISO, DNV, API, AWS, ASTM). * Strong knowledge of international standards (ASME, EN/ISO, DNV, API, AWS, ASTM).
Perform gap analyses of applicable design and fabrication codes (ASME, EN/ISO, DNV, API, AWS, ASTM). * Strong knowledge of international standards (ASME, EN/ISO, DNV, API, AWS, ASTM).
NEW
)
Experience with REST and SOAP API integrations
Experience with REST and SOAP API integrations
NEW
)
High qps, high SLA API deployment
High qps, high SLA API deployment
)
Full Stack Developer (FinTech/ Front-End Basis)
Full Stack Developer (FinTech/ Front-End Basis)
Ernest Gordon Recruitment
SS13, Basildon
£55000.00 - £65000.00 per annum + Training + Company Benefits
Basildon - Hybrid £55,000 - £65,000 + Training + Progression + Healthcare Coverage + Benefits - Are you a Full Stack Developer with a strong front-end focus, looking to join a talented team building cutting-edge websites for global FinTech clients, using modern technologies and receiving great training to support your progression into a senior role? Are you looking to join a company that genuinely invests in your future, with unlimited training opportunities and a best-in-class e-learning platform designed to keep you ahead of the curve in a fast-evolving tech landscape? In this company is a true disruptor in the insurance industry, blending cutting-edge technology with every aspect of the sector. Their automation solutions help insurers stay agile and efficient by streamlining time-consuming tasks.
Basildon - Hybrid £55,000 - £65,000 + Training + Progression + Healthcare Coverage + Benefits - Are you a Full Stack Developer with a strong front-end focus, looking to join a talented team building cutting-edge websites for global FinTech clients, using modern technologies and receiving great training to support your progression into a senior role? Are you looking to join a company that genuinely invests in your future, with unlimited training opportunities and a best-in-class e-learning platform designed to keep you ahead of the curve in a fast-evolving tech landscape? In this company is a true disruptor in the insurance industry, blending cutting-edge technology with every aspect of the sector. Their automation solutions help insurers stay agile and efficient by streamlining time-consuming tasks.
FEATUREDNEW
Shopify Developer
Shopify Developer
Halian Technology Limited
W1, Central London
From £70,000 to £90,000 per annum Plus bonus and benefits
Strong proficiency in Shopifys liquid templating language, API integrations, custom app development, and Shopify Plus.
Strong proficiency in Shopifys liquid templating language, API integrations, custom app development, and Shopify Plus.
NEW
)
Experience of API definition
Experience of API definition
)
integration'segal client is seeking an experienced IntApp engineer to join their growing technology function. The successful candidate will take ownership of several applications which focuses on the firms IntApp Conflicts, Intake, Walls, Terms and all related systems and tools. The role will also be involved the migration of my client's risk platform to the cloud. * Skills and experience required * Strong commercial experience and knowledge of IntApp configuration tools * Strong understanding and experience with integration's such as APIs, database to database FTP and web services * Strong knowledge of cloud systems such as integrations features and release management * Knowledge of AI and GenAI and its application within the legal sector * First class communication and stakeholder management skills * Commercial experience of SQL Server
integration'segal client is seeking an experienced IntApp engineer to join their growing technology function. The successful candidate will take ownership of several applications which focuses on the firms IntApp Conflicts, Intake, Walls, Terms and all related systems and tools. The role will also be involved the migration of my client's risk platform to the cloud. * Skills and experience required * Strong commercial experience and knowledge of IntApp configuration tools * Strong understanding and experience with integration's such as APIs, database to database FTP and web services * Strong knowledge of cloud systems such as integrations features and release management * Knowledge of AI and GenAI and its application within the legal sector * First class communication and stakeholder management skills * Commercial experience of SQL Server
NEW
You will be working on a standard API layer wrapping 3rd party services (i.e Intercom and Gong) specifically to standardise the interface for cadencing/marketing/enrolment/email sequencing.
You will be working on a standard API layer wrapping 3rd party services (i.e Intercom and Gong) specifically to standardise the interface for cadencing/marketing/enrolment/email sequencing.
FEATUREDNEW
Senior Software Engineer - Client Identity
Senior Software Engineer - Client Identity
McGregor Boyall Associates Limited
EC1, City of London
Partnership bonus + Traget bonus
Job Title: Senior Software Engineer - Client Identity - Location: Hybrid (Manchester/London) About the Role - Join our newly formed cybersecurity team and take on a crucial role in protecting clients across the UK and Europe. As a Senior Software Engineer in the Client Identity team, you'll work on developing and enhancing modern cloud-based cybersecurity services, ensuring the security and integrity of authentication solutions for our clients. You'll be at the forefront of defending against cyber threats and creating seamless login experiences for hundreds of thousands of users. Role Responsibilities * Develop and enhance cloud-based cybersecurity services across all layers, from databases to Content Delivery Networks (CDNs). * Implement secure authentication solutions, including Multi-Factor Authentication (MFA) and Passkeys.
Job Title: Senior Software Engineer - Client Identity - Location: Hybrid (Manchester/London) About the Role - Join our newly formed cybersecurity team and take on a crucial role in protecting clients across the UK and Europe. As a Senior Software Engineer in the Client Identity team, you'll work on developing and enhancing modern cloud-based cybersecurity services, ensuring the security and integrity of authentication solutions for our clients. You'll be at the forefront of defending against cyber threats and creating seamless login experiences for hundreds of thousands of users. Role Responsibilities * Develop and enhance cloud-based cybersecurity services across all layers, from databases to Content Delivery Networks (CDNs). * Implement secure authentication solutions, including Multi-Factor Authentication (MFA) and Passkeys.
NEW
Full Stack AI Engineer | £70k-£130k + Benefits + Shares| London (Hybrid, 3 days a week) Are you a Full Stack AI Engineer looking for a role at the cutting edge of AI, Generative Models, and scalable cloud solutions? Do you thrive in fast-paced environments where your work directly influences the next generation of AI applications? If so, this is the opportunity for you. Why Join? * Develop and deploy scalable micro-services and data pipelines that power AI-driven applications. * Gain hands-on experience with LLMs, fine-tuning, prompting and AI-powered solutions to drive innovation. * Design and implement quality assurance/testing frameworks to ensure robust AI performance. * Work closely with other AI specialists, engineers, and product leaders to solve complex technical challenges for FTSE 100 clients.
Full Stack AI Engineer | £70k-£130k + Benefits + Shares| London (Hybrid, 3 days a week) Are you a Full Stack AI Engineer looking for a role at the cutting edge of AI, Generative Models, and scalable cloud solutions? Do you thrive in fast-paced environments where your work directly influences the next generation of AI applications? If so, this is the opportunity for you. Why Join? * Develop and deploy scalable micro-services and data pipelines that power AI-driven applications. * Gain hands-on experience with LLMs, fine-tuning, prompting and AI-powered solutions to drive innovation. * Design and implement quality assurance/testing frameworks to ensure robust AI performance. * Work closely with other AI specialists, engineers, and product leaders to solve complex technical challenges for FTSE 100 clients.
NEW
Up to £600 per day Outside IR35 - London (Hybrid) The Role - As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
Up to £600 per day Outside IR35 - London (Hybrid) The Role - As a Product Owner with a specialist focus on data mapping, you’ll be at the heart of enabling robust, scalable, and intelligent data flows across our internal systems. You'll define and deliver product capabilities that ensure seamless data flow between systems, APIs, and third-party platforms, driving clarity, consistency, and business value across our data landscape. * Own the data mapping product area from vision to execution. * Translate business needs into detailed data mapping requirements and user stories. * Collaborate with engineering, data, and compliance teams to implement mappings across internal systems. * Ensure data accuracy, consistency, and traceability across the platform. * Maintain documentation and support agile delivery practices.
FEATUREDNEW