Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- Shoreditch
- The City, City (EC3)
- Moorgate
- Chilton
- Euston
- Granby Industrial Estate
- Harmondsworth
- Littlemore
- Oakridge
- Shadwell
- City of London
- East London
- Central London
- Dartford
- West End
- Wokingham
- Milton Keynes
- Reading
- Basingstoke
- Brighton
- London
- Berkshire
- Hampshire
- Kent
- Oxfordshire
- Buckinghamshire
- Surrey
- West Sussex
- East Sussex
- Hertfordshire
- South East
- South West
12 Contract API jobs in South Farnborough + 20 miles
181 exact matches jobs are outside your preferred location
)
Implement robust state management and API integration * Collaborate with backend teams on API contracts and integration
Implement robust state management and API integration * Collaborate with backend teams on API contracts and integration
FEATURED
)
OutSystems Developer (LowCode Orchestration)
OutSystems Developer (LowCode Orchestration)
Infoplus Technologies UK Ltd
London
From £400 to £450 per day
Integration & API Management
Integration & API Management
)
API integration
API integration
PREMIUM
API Automation (REST Assured, Karate, Postman)
API Automation (REST Assured, Karate, Postman)
)
API first integration, event driven architectures, and data pipelines
API first integration, event driven architectures, and data pipelines
)
Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
FEATURED
)
If you enjoy owning backend services end to end, care deeply about reliability and API quality, and want to work hands-on with Palantir Foundry in a high-impact environment, this role offers both autonomy and real impact. * Mentor engineers on backend design and API ergonomics. * Experience with API versioning, security, documentation strategies, and automated testing.
If you enjoy owning backend services end to end, care deeply about reliability and API quality, and want to work hands-on with Palantir Foundry in a high-impact environment, this role offers both autonomy and real impact. * Mentor engineers on backend design and API ergonomics. * Experience with API versioning, security, documentation strategies, and automated testing.
Oracle Fusion HCM Technical Architect
Oracle Fusion HCM Technical Architect
Infoplus Technologies UK Ltd
Crawley (RH10)
From £500 to £600 per day
The Role - We need Oracle Fusion HCM Technical Architect to support our Oracle Fusion related applications and delivery for one of the UKs large airline customer. Collaborate with business stakeholders (HR, Payroll, Benefits teams) to understand and translate requirements into scalable Oracle Fusion HCM solutions. oCore HR - oPayroll (UK) oAbsence Management - oBenefits - oHire-to-retire lifecycle - oPayroll processing, statutory compliance, and reporting - oLeave, accruals, and absence policies - oEmployee benefits enrolment and eligibility - Lead functional and technical design workshops, ensuring best practices and standardization. Review and validate functional design documents (FDDs) and solution designs. Support UAT and business validation, ensuring solutions meet business needs. Act as the key liaison between functional consultants, technical teams, and client stakeholders.
The Role - We need Oracle Fusion HCM Technical Architect to support our Oracle Fusion related applications and delivery for one of the UKs large airline customer. Collaborate with business stakeholders (HR, Payroll, Benefits teams) to understand and translate requirements into scalable Oracle Fusion HCM solutions. oCore HR - oPayroll (UK) oAbsence Management - oBenefits - oHire-to-retire lifecycle - oPayroll processing, statutory compliance, and reporting - oLeave, accruals, and absence policies - oEmployee benefits enrolment and eligibility - Lead functional and technical design workshops, ensuring best practices and standardization. Review and validate functional design documents (FDDs) and solution designs. Support UAT and business validation, ensuring solutions meet business needs. Act as the key liaison between functional consultants, technical teams, and client stakeholders.
)
API integrations
API integrations
PREMIUM
)
You will be working in a large team of engineers, product people, designers, and QA to build the Backend for Frontend API layer consumed by American Express travel mobile app.
You will be working in a large team of engineers, product people, designers, and QA to build the Backend for Frontend API layer consumed by American Express travel mobile app.
Backend Developer - Java
Backend Developer - Java
Infoplus Technologies UK Ltd
The City, City of London (EC3), EC4R 9AA
Unspecified
Role: Backend Developer - Java - Location: Edinburgh / London, UK - Duration: Contract - Your Profile * 510 years of overall software development experience, with minimum 4+ years of hands on Java development * Strong experience with Java 9+ * Proven expertise in Spring Framework (Spring Boot, Spring MVC, Spring Core) * Hands on experience building backend services and APIs and Microservices * Solid understanding of object oriented design, design patterns, and clean code principles * Experience working in Agile / Scrum environments * Strong problem solving and debugging skills * Ability to work effectively in distributed, multi team environments * Experience with SaaS based architectures * Exposure to event driven architecture (Kafka, JMS, or equivalent) * Experience with system integration and enterprise messaging * Knowledge of cloud platforms (GCP preferred)
Role: Backend Developer - Java - Location: Edinburgh / London, UK - Duration: Contract - Your Profile * 510 years of overall software development experience, with minimum 4+ years of hands on Java development * Strong experience with Java 9+ * Proven expertise in Spring Framework (Spring Boot, Spring MVC, Spring Core) * Hands on experience building backend services and APIs and Microservices * Solid understanding of object oriented design, design patterns, and clean code principles * Experience working in Agile / Scrum environments * Strong problem solving and debugging skills * Ability to work effectively in distributed, multi team environments * Experience with SaaS based architectures * Exposure to event driven architecture (Kafka, JMS, or equivalent) * Experience with system integration and enterprise messaging * Knowledge of cloud platforms (GCP preferred)
)
Director of Technical Delivery
Director of Technical Delivery
Wilmington
City of London (EC4R)
Circa £100,000 - £110,000 (DoE) + 15% bonus
Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition - Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system and multi-vendor environments, including API integration, data migration, identity consolidation, release management, and cutover execution
Strong expertise in composable, microservice-based architectures, including API design, event-driven integration, and service decomposition - Proven track record delivering large-scale platform integration or migration programmes across complex, multi-system and multi-vendor environments, including API integration, data migration, identity consolidation, release management, and cutover execution
NEWFEATURED
)
AWS for underlying infrastructure (Aurora, Redis, Dynamo, S3, SNS, SQS, CloudFront, API Gateway, etc.)
AWS for underlying infrastructure (Aurora, Redis, Dynamo, S3, SNS, SQS, CloudFront, API Gateway, etc.)
)
Support secure architecture and design reviews, particularly for cloud-native and API-driven systems.
Support secure architecture and design reviews, particularly for cloud-native and API-driven systems.
)
Software Engineer C# .Net Azure SaaS
Software Engineer C# .Net Azure SaaS
Client Server
Richmond (TW9), TW9
£50000 - £65000 per annum + benefits
Software Engineer / Developer (C# .Net Azure) Richmond / WFH to £65k - Are you a Microsoft technologist looking for a role where you can make an impact and progress your career? You could be joining a well funded tech start-up, with recent £35 million investment, as they scale. As a Software Engineer you'll collaborate with the Lead Engineer to develop scalable and secure architectures within the core product, a software application for MSPs that enables them to manage and monitor Microsoft 365 security across multiple tenants and update security policy within seconds. You'll focus on back end development using modern C# .Net within an Azure Serverless Architecture. You'll be supported and encouraged to contribute to technical discussions and decision making, progressing your career in line with company growth in a role you can shape and influence.
Software Engineer / Developer (C# .Net Azure) Richmond / WFH to £65k - Are you a Microsoft technologist looking for a role where you can make an impact and progress your career? You could be joining a well funded tech start-up, with recent £35 million investment, as they scale. As a Software Engineer you'll collaborate with the Lead Engineer to develop scalable and secure architectures within the core product, a software application for MSPs that enables them to manage and monitor Microsoft 365 security across multiple tenants and update security policy within seconds. You'll focus on back end development using modern C# .Net within an Azure Serverless Architecture. You'll be supported and encouraged to contribute to technical discussions and decision making, progressing your career in line with company growth in a role you can shape and influence.
PREMIUM
Principal Java Developer - Consultancy
Principal Java Developer - Consultancy
Client Server
City of London (EC2A), EC2A
£100000 - £120000 per annum + benefits
Principal Java Developer / Software Engineer (Java SpringBoot AWS) London / WFH to £120k - Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. * Salary to £120k * Pension, Life Assurance, Income Protection * Private medical care for you and your family, including mental health * Travel Insurance * Charitable giving * Gym membership for you and your family * Flexible holiday scheme - As a Principal Java Developer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments.
Principal Java Developer / Software Engineer (Java SpringBoot AWS) London / WFH to £120k - Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. * Salary to £120k * Pension, Life Assurance, Income Protection * Private medical care for you and your family, including mental health * Travel Insurance * Charitable giving * Gym membership for you and your family * Flexible holiday scheme - As a Principal Java Developer you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within the financial services sector and with a focus on migrating legacy systems to AWS and introducing CI/CD pipelines and cloud deployments.
PREMIUM
)
About this role - The Cash Management Group manages a suite of products that includes Prime and Government Money Market and Ultra-Short Duration Mutual funds and Separate Accounts. BlackRocks cash management style is designed to meet each clients objectives of capital preservation, liquidity and yield in that order. This philosophy is built on a risk-controlled framework, featuring careful analysis of credit, interest rate trends, and relative value opportunities which ultimately produce investment returns on a risk adjusted basis. Our disciplined approach to investing originated in 1973 when we pioneered the first constant-dollar money market fund dedicated to institutional investors. Cash Tech Client Product Strategy (Cash Tech Product) is part of Global Cash Management. The team is responsible for setting the strategic roadmap for the Cash Management business distribution ...
About this role - The Cash Management Group manages a suite of products that includes Prime and Government Money Market and Ultra-Short Duration Mutual funds and Separate Accounts. BlackRocks cash management style is designed to meet each clients objectives of capital preservation, liquidity and yield in that order. This philosophy is built on a risk-controlled framework, featuring careful analysis of credit, interest rate trends, and relative value opportunities which ultimately produce investment returns on a risk adjusted basis. Our disciplined approach to investing originated in 1973 when we pioneered the first constant-dollar money market fund dedicated to institutional investors. Cash Tech Client Product Strategy (Cash Tech Product) is part of Global Cash Management. The team is responsible for setting the strategic roadmap for the Cash Management business distribution ...
)
Senior AWS DevOps Engineer (Test & Infrastructure Resilience) Location: Remote Working - Security Clearance: Must be eligible for SC Clearance - 6 Months Contract £400 to £600 a day inside IR35 - A top-tier consultancy firm is looking for an experienced AWS DevOps Engineer with a strong background in testing to help maintain and evolve Critical National Infrastructure (CNI) for a top UK client. This is a pivotal role in maintaining critical national infrastructure where scalability and resilience are essential. We're looking for a highly skilled DevOps engineer with a strong background in testing (including APIs). The ideal candidate should be self-motivated and results-driven, capable of thriving in an Agile team. You'll need to be comfortable with Confluence for documentation and Jira for project tracking and story management.
Senior AWS DevOps Engineer (Test & Infrastructure Resilience) Location: Remote Working - Security Clearance: Must be eligible for SC Clearance - 6 Months Contract £400 to £600 a day inside IR35 - A top-tier consultancy firm is looking for an experienced AWS DevOps Engineer with a strong background in testing to help maintain and evolve Critical National Infrastructure (CNI) for a top UK client. This is a pivotal role in maintaining critical national infrastructure where scalability and resilience are essential. We're looking for a highly skilled DevOps engineer with a strong background in testing (including APIs). The ideal candidate should be self-motivated and results-driven, capable of thriving in an Agile team. You'll need to be comfortable with Confluence for documentation and Jira for project tracking and story management.
FEATURED
Role Summary - Leyton Orient is building a genuinely data-driven recruitment operation one where statistical rigour, AI tooling, and traditional scouting judgement work in concert rather than in tension. This role sits at the centre of that ambition. As Recruitment Data Scientist, you will design and deploy the models, pipelines, and AI-powered workflows that help our Head of Recruitment and Director of Football identify, assess, and prioritise players. You will work with real data from best-in-class providers, have direct access to senior decision-makers, and crucially have genuine scope to build, not just maintain. This is not a research role. The work you produce will directly influence recruitment decisions, shape squad-building strategy, and be presented to coaches and club leadership. If you want to see your work matter, this is the environment for it.
Role Summary - Leyton Orient is building a genuinely data-driven recruitment operation one where statistical rigour, AI tooling, and traditional scouting judgement work in concert rather than in tension. This role sits at the centre of that ambition. As Recruitment Data Scientist, you will design and deploy the models, pipelines, and AI-powered workflows that help our Head of Recruitment and Director of Football identify, assess, and prioritise players. You will work with real data from best-in-class providers, have direct access to senior decision-makers, and crucially have genuine scope to build, not just maintain. This is not a research role. The work you produce will directly influence recruitment decisions, shape squad-building strategy, and be presented to coaches and club leadership. If you want to see your work matter, this is the environment for it.
NEW
)
Your new role - We are looking for an experienced Full Stack C# Web Developer with strong React expertise to support the development and enhancement of a web-based compliance portal for a key programme. Responsibilities * Design, develop, and maintain a secure, scalable compliance web portal * Build and enhance back-end services using C# and .NET / .NET Core * Develop modern, responsive front-end applications using React * Integrate front-end components with RESTful APIs * Work closely with product owners, business analysts, and QA engineers * Ensure high standards of security, performance, and maintainability * Contribute to code reviews, documentation, and technical standards - What you'll need to succeed * Proven experience as a Full Stack Developer * Strong C# and .NET / .NET Core development background * Commercial experience building applications with React
Your new role - We are looking for an experienced Full Stack C# Web Developer with strong React expertise to support the development and enhancement of a web-based compliance portal for a key programme. Responsibilities * Design, develop, and maintain a secure, scalable compliance web portal * Build and enhance back-end services using C# and .NET / .NET Core * Develop modern, responsive front-end applications using React * Integrate front-end components with RESTful APIs * Work closely with product owners, business analysts, and QA engineers * Ensure high standards of security, performance, and maintainability * Contribute to code reviews, documentation, and technical standards - What you'll need to succeed * Proven experience as a Full Stack Developer * Strong C# and .NET / .NET Core development background * Commercial experience building applications with React
NEW
Backend Software Engineer Kotlin Java Spring Boot
Backend Software Engineer Kotlin Java Spring Boot
Client Server
Shoreditch, East London (E1), EC2A
£65000 - £80000 per annum + benefits
Backend Software Engineer / Developer (Kotlin Java Spring Boot) London / WFH to £80k - Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house whose award winning software enables customers to build high-performance web trading apps that deliver real-time information securely and reliably. * Salary to £80k * Pension, Income Protection, Life Assurance * Private medical and dental care * Gym membership * Childcare vouchers, cycle to work scheme, season ticket loan * Ability to buy extra holiday - As a Backend Software Engineer you will build high-performance, real-time servers powering critical financial applications, designing fast, intuitive APIs that simplify integration.
Backend Software Engineer / Developer (Kotlin Java Spring Boot) London / WFH to £80k - Are you a backend focused technologist with real-time financial systems experience? You could be progressing your career as a Backend Software Engineer at a highly successful financial software house whose award winning software enables customers to build high-performance web trading apps that deliver real-time information securely and reliably. * Salary to £80k * Pension, Income Protection, Life Assurance * Private medical and dental care * Gym membership * Childcare vouchers, cycle to work scheme, season ticket loan * Ability to buy extra holiday - As a Backend Software Engineer you will build high-performance, real-time servers powering critical financial applications, designing fast, intuitive APIs that simplify integration.
NEWPREMIUM
Senior Full Stack Engineer C# Python AWS
Senior Full Stack Engineer C# Python AWS
Client Server
Shoreditch, East London (E1), EC2A
£150000 - £180000 per annum + benefits
Senior Full Stack Engineer / Developer (C# Python AWS SQL IaC) London 12 month FTC to £180k - Are you a full stack technologist with a product based mindset? You could be progressing your career in a hands-on Senior Full Stack Engineer role at a tech driven, global Asset Manager with multiple billions of dollars under management, on a 12 month Fixed term Contract. As a Senior Full Stack Engineer you will join one of the Investment Tech Engineering teams to design, develop and implement robust applications that serve Portfolio Managers, Equity Analysts, Quant and Data Insights, Decision Analytics and Performance teams. You'll collaborate directly with stakeholders and users to identify opportunities, troubleshoot issues and deliver capabilities that improve quality, speed and reliability of investment decision making systems.
Senior Full Stack Engineer / Developer (C# Python AWS SQL IaC) London 12 month FTC to £180k - Are you a full stack technologist with a product based mindset? You could be progressing your career in a hands-on Senior Full Stack Engineer role at a tech driven, global Asset Manager with multiple billions of dollars under management, on a 12 month Fixed term Contract. As a Senior Full Stack Engineer you will join one of the Investment Tech Engineering teams to design, develop and implement robust applications that serve Portfolio Managers, Equity Analysts, Quant and Data Insights, Decision Analytics and Performance teams. You'll collaborate directly with stakeholders and users to identify opportunities, troubleshoot issues and deliver capabilities that improve quality, speed and reliability of investment decision making systems.
PREMIUM
)
Position Overview - Job Title Principal Engineer (Full Stack) Go / GCP / AI - Location London - Corporate Title Vice President - Synthix is building a SaaS native marketplace of financial solutionsa tech first platform that plugs into client workflows and connects them to an ecosystem of partners (banks, PSPs, ERPs, and data providers) through a single integration. We combine institutional credibility and reach with startup level engineering agility. We are deliberately strengthening our engineering capability with inspirational, hands on technical leadershippeople who ship, raise the bar on quality, and deliver enterprise grade reliability at fintech speed. This is a builder role. Youll be a Principal level engineer who codes regularly, sets technical direction through doing, and helps scale a high performance product engineering culture. What well offer you
Position Overview - Job Title Principal Engineer (Full Stack) Go / GCP / AI - Location London - Corporate Title Vice President - Synthix is building a SaaS native marketplace of financial solutionsa tech first platform that plugs into client workflows and connects them to an ecosystem of partners (banks, PSPs, ERPs, and data providers) through a single integration. We combine institutional credibility and reach with startup level engineering agility. We are deliberately strengthening our engineering capability with inspirational, hands on technical leadershippeople who ship, raise the bar on quality, and deliver enterprise grade reliability at fintech speed. This is a builder role. Youll be a Principal level engineer who codes regularly, sets technical direction through doing, and helps scale a high performance product engineering culture. What well offer you
)
Senior Full Stack Engineer (Java / Python) Contract Length - 6 months - Location - London (2 days onsite) We are hiring a Senior Full Stack Engineer for a high-priority, ASAP-start contract role with a leading UK tech platform. This is a hands-on senior engineering position within an established team building scalable, modern full stack systems. The Role - You'll be a senior individual contributor working across backend and frontend systems, helping shape technical direction and confidently engaging with stakeholders to influence engineering decisions. The core stack is Java-first, with increasing importance on Python-based services (including orchestration, agents, and modern AI/LLM integrations), alongside a strong React frontend. This is not a leadership/management role, but you must be able to operate at senior level, challenge decisions, and drive engineering quality.
Senior Full Stack Engineer (Java / Python) Contract Length - 6 months - Location - London (2 days onsite) We are hiring a Senior Full Stack Engineer for a high-priority, ASAP-start contract role with a leading UK tech platform. This is a hands-on senior engineering position within an established team building scalable, modern full stack systems. The Role - You'll be a senior individual contributor working across backend and frontend systems, helping shape technical direction and confidently engaging with stakeholders to influence engineering decisions. The core stack is Java-first, with increasing importance on Python-based services (including orchestration, agents, and modern AI/LLM integrations), alongside a strong React frontend. This is not a leadership/management role, but you must be able to operate at senior level, challenge decisions, and drive engineering quality.
Lead Python Developer - Fintech
Lead Python Developer - Fintech
Client Server
Soho, Central London (W1), W1D
£100000 - £120000 per annum + benefits
Lead Python Developer / Software Engineer London / WFH to £120k - Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development.
Lead Python Developer / Software Engineer London / WFH to £120k - Are you a skilled Python Developer with team leadership experience? You could be progressing your career at a well-funded and profitable FinTech start-up. As a Lead Python Developer you'll head up a small, talented tech team to deliver new features and enhancements as well as some refactoring work, contributing to the core banking platform which integrates with major players such as HSBC. There's a relatively young codebase and lots of new projects to get stuck into. You'll be collaboratively problem solving in a hands-on role with approximately 50/50 split between architecture / design and people management. You'll set the standards and mentor more junior developers, fostering a culture of continuous improvement and self development.
PREMIUM
Related Jobs
Locations
- Shoreditch
- The City, City (EC3)
- Moorgate
- Chilton
- Euston
- Granby Industrial Estate
- Harmondsworth
- Littlemore
- Oakridge
- Shadwell
- City of London
- East London
- Central London
- Dartford
- West End
- Wokingham
- Milton Keynes
- Reading
- Basingstoke
- Brighton
- London
- Berkshire
- Hampshire
- Kent
- Oxfordshire
- Buckinghamshire
- Surrey
- West Sussex
- East Sussex
- Hertfordshire
- South East
- South West