Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- Southwark
- St James
- The City, City (EC3)
- Chilton
- Datchet Common
- Euston
- Grays Inn
- Greenwich
- Harmondsworth
- Hinxton
- City of London
- South East London
- Loughton
- Reading
- Central London
- Milton Keynes
- West End
- Bracknell
- East London
- Kingston Upon Thames
- London
- Berkshire
- Essex
- Surrey
- Oxfordshire
- Buckinghamshire
- Hertfordshire
- Hampshire
- East Sussex
- Kent
- South East
85 Contract API jobs in Kingston Upon Thames + 20 miles
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Lead .Net Developer
Lead .Net Developer
Halian Technology Limited
Central London (W1)
From £75,000 to £85,000 per annum Plus bonus and benfits
Architect secure, high-performance API solutions using C#, .NET, and Azure. Ensure best practices in API design, security, and performance optimisation. Strong experience with RESTful API development and microservices architecture. Strong understanding of API security, authentication, and performance optimisation.
Architect secure, high-performance API solutions using C#, .NET, and Azure. Ensure best practices in API design, security, and performance optimisation. Strong experience with RESTful API development and microservices architecture. Strong understanding of API security, authentication, and performance optimisation.
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Define API strategies including RESTful and event-driven architectures * Experience designing microservices and API-led architectures
Define API strategies including RESTful and event-driven architectures * Experience designing microservices and API-led architectures
FEATURED
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Lead Solution Architect – Endur (ETRM Gas & Power Trading)
Lead Solution Architect – Endur (ETRM Gas & Power Trading)
BP Energy
St James, South West London (SW1), WC2N 5DU
Competitive
Experience with modern architecture patterns: microservices, messaging/event-driven design, caching, and API strategy.
Experience with modern architecture patterns: microservices, messaging/event-driven design, caching, and API strategy.
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Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
Develop and maintain Python code for data processing, API development, and integration with the Azure Databricks environment.
FEATURED
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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
)
Senior Test Manager
Senior Test Manager
Infoplus Technologies UK Ltd
City of London (EC3M)
From £450 to £500 per day Depends on Experience
Cloud and API led architecture experience.
Cloud and API led architecture experience.
)
Applications Support Analyst / Engineer
Applications Support Analyst / Engineer
Kudos Partners
Datchet Common, Slough (SL3), SL3
Up to £75,000 per annum plus 12% bonus - generous benefits package
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
Strong knowledge of data modeling and API integration.
Strong knowledge of data modeling and API integration.
)
Senior C#.Net Software Engineer
Senior C#.Net Software Engineer
Data Careers
Southwark, South East London (SE1), SE1
£80000 - £90000 per annum
Good understanding of authentication and security (OAuth, JWT, API security)
Good understanding of authentication and security (OAuth, JWT, API security)
)
API integration
API integration
PREMIUM
)
Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). * Champion best practices for API-led connectivity, event-driven architectures, and pub/sub messaging patterns. * Understanding of integration patterns (pub/sub, API-led, event-driven) and security standards (OAuth2, JWT, TLS, API security).
Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). * Champion best practices for API-led connectivity, event-driven architectures, and pub/sub messaging patterns. * Understanding of integration patterns (pub/sub, API-led, event-driven) and security standards (OAuth2, JWT, TLS, API security).
)
Full Stack Engineer JavaScript
Full Stack Engineer JavaScript
Staffworx Limited
West London (W10)
market rates, outside IR35, 6 months initial, long term extensions
Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
)
Graduate Data Analyst - Python
Graduate Data Analyst - Python
CV Screen Ltd
Greenwich, South East London (SE10), SE10
£28k - 33k per year + Benefits
Understanding of data visualisation and basic API integration concepts.
Understanding of data visualisation and basic API integration concepts.
Develop resilient API ingestion workflows
Develop resilient API ingestion workflows
FEATURED
Develop resilient API ingestion workflows
Develop resilient API ingestion workflows
FEATURED
)
Database Administrator DBA
Database Administrator DBA
Alexander Edward James Consulting Limited
City of London (EC1A)
£60,000 per annum
Exposure to API integration and microservice-based architectures
Exposure to API integration and microservice-based architectures
)
Lead React Native Engineer / Engineering manager
Lead React Native Engineer / Engineering manager
Sanderson Recruitment
City of London (EC1), EC1
£600 - £700 per day + Outside IR35
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
FEATURED
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Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
Agility core practices, Agility core practices, API and platform design, Cloud Platforms, Collaboration, Communication, Configuration management and release, Continuous deployment and release, Creating a high performing team, Database Design, Digital Project Management, Documentation and knowledge sharing, Emerging technology monitoring, Facilitation, Information Security, Mentoring, Metrics definition and instrumentation, NoSql data modelling, Problem Solving, Relational Data Modelling, Risk Management, Scripting, Secure development, Service operations and resiliency, Software Design and Development {+ 7 more}
Agility core practices, Agility core practices, API and platform design, Cloud Platforms, Collaboration, Communication, Configuration management and release, Continuous deployment and release, Creating a high performing team, Database Design, Digital Project Management, Documentation and knowledge sharing, Emerging technology monitoring, Facilitation, Information Security, Mentoring, Metrics definition and instrumentation, NoSql data modelling, Problem Solving, Relational Data Modelling, Risk Management, Scripting, Secure development, Service operations and resiliency, Software Design and Development {+ 7 more}
Solution Architect - PreSales, Bids, Digital Transformation.
Solution Architect - PreSales, Bids, Digital Transformation.
Sanderson Recruitment
City of London (EC1), EC1
£700 - £800 per day
Strategic Bid Architect / Pre Sales Solution Architect / Bid Solution Architect / Bid Architect - Solutions - This is a pivotal role in shaping, validating, and presenting complex digital, data, and AI-enabled solutions that are commercially competitive, architecturally robust, and operationally deliverable. Acting as the senior solution leader, the role is accountable for designing and governing advanced, cloud-native, and data-driven architectures for strategic, complex, and high-value bids, showcasing our clients digital design ethos and technical excellence. They ensure that all proposals are aligned to customer outcomes, compliant with requirements, and consistent with enterprise standards and delivery capability - delivering winning, sustainable propositions for our client. Working closely with the Growth and Business Development teams from the earliest stages of the ...
Strategic Bid Architect / Pre Sales Solution Architect / Bid Solution Architect / Bid Architect - Solutions - This is a pivotal role in shaping, validating, and presenting complex digital, data, and AI-enabled solutions that are commercially competitive, architecturally robust, and operationally deliverable. Acting as the senior solution leader, the role is accountable for designing and governing advanced, cloud-native, and data-driven architectures for strategic, complex, and high-value bids, showcasing our clients digital design ethos and technical excellence. They ensure that all proposals are aligned to customer outcomes, compliant with requirements, and consistent with enterprise standards and delivery capability - delivering winning, sustainable propositions for our client. Working closely with the Growth and Business Development teams from the earliest stages of the ...
FEATURED
)
Experience of API technologies and writing Restful APIs in JSON
Experience of API technologies and writing Restful APIs in JSON
FEATURED
)
Lynx Recruitment is seeking a skilled Workflow Developer to design, develop, and improve workflows, automations, and system integrations that support business operations. The successful candidate will work closely with stakeholders to translate operational needs into secure, reliable, and well-documented technical solutions. This is an excellent opportunity to work in a dynamic environment with modern hybrid working policies, collaborative teams, and exposure to cutting-edge business systems. Responsibilities * Design, build, and maintain workflows, automations, and system integrations across core business systems. * Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. * Develop integrations using APIs, REST services, and approved low-code or integration tools.
Lynx Recruitment is seeking a skilled Workflow Developer to design, develop, and improve workflows, automations, and system integrations that support business operations. The successful candidate will work closely with stakeholders to translate operational needs into secure, reliable, and well-documented technical solutions. This is an excellent opportunity to work in a dynamic environment with modern hybrid working policies, collaborative teams, and exposure to cutting-edge business systems. Responsibilities * Design, build, and maintain workflows, automations, and system integrations across core business systems. * Create and optimize SQL queries, stored procedures, and data routines to support workflow logic and reporting. * Develop integrations using APIs, REST services, and approved low-code or integration tools.
Senior Java Developer (Contract) Java | Spring Boot | Kafka | Microservices | Kubernetes | AWS - London (Hybrid) | 912 Months | Competitive Day Rate - We are hiring a Senior Java Developer for a long-term contract within a major financial market infrastructure organisation in London. This role is focused on event-driven microservices, Kafka-based architectures, containerised deployments, and high-performance distributed systems. If your experience is primarily CRUD REST APIs without large-scale distributed systems exposure, this role will not be the right fit. Core Requirements (Must Have) * Strong Core Java development (Java 10+) * Extensive Spring Boot experience * Proven Microservices architecture experience * Hands-on Apache Kafka (producers, consumers, topics, partitions) * Experience building event-driven systems * Docker & Kubernetes in production
Senior Java Developer (Contract) Java | Spring Boot | Kafka | Microservices | Kubernetes | AWS - London (Hybrid) | 912 Months | Competitive Day Rate - We are hiring a Senior Java Developer for a long-term contract within a major financial market infrastructure organisation in London. This role is focused on event-driven microservices, Kafka-based architectures, containerised deployments, and high-performance distributed systems. If your experience is primarily CRUD REST APIs without large-scale distributed systems exposure, this role will not be the right fit. Core Requirements (Must Have) * Strong Core Java development (Java 10+) * Extensive Spring Boot experience * Proven Microservices architecture experience * Hands-on Apache Kafka (producers, consumers, topics, partitions) * Experience building event-driven systems * Docker & Kubernetes in production
Related Jobs
Locations
- Southwark
- St James
- The City, City (EC3)
- Chilton
- Datchet Common
- Euston
- Grays Inn
- Greenwich
- Harmondsworth
- Hinxton
- City of London
- South East London
- Loughton
- Reading
- Central London
- Milton Keynes
- West End
- Bracknell
- East London
- Kingston Upon Thames
- London
- Berkshire
- Essex
- Surrey
- Oxfordshire
- Buckinghamshire
- Hertfordshire
- Hampshire
- East Sussex
- Kent
- South East