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88 Contract API jobs in Norbiton Common + 20 miles
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A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. * Axway's core products: Policy Studio, API Gateway, and API Manager. If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you.
A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. * Axway's core products: Policy Studio, API Gateway, and API Manager. If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you.
NEWFEATURED
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C++ Software Engineer MacOS - Cyber Security
C++ Software Engineer MacOS - Cyber Security
Client Server
The City, EC4
£65000 - £80000 per annum + benefits
C++ Software Engineer / Developer (C++ Mac Extensions API) WFH / London to £80k - As a C++ Software Engineer 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. Apply now to find out more about this C++ Software Engineer / Developer (C++ Mac Extensions API) opportunity.
C++ Software Engineer / Developer (C++ Mac Extensions API) WFH / London to £80k - As a C++ Software Engineer 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. Apply now to find out more about this C++ Software Engineer / Developer (C++ Mac Extensions API) opportunity.
NEWPREMIUM
Staff Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k
Staff Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k
NEWPREMIUM
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In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
In this critical role, youll develop and maintain REST API over serverless functions using TypeScript; youll also design and implement scalable PostgreSQL schemas and data models. Other organisations may call this role Software Engineer, Software Developer, Back End Software Engineer, Server-Side Developer, Full Stack Developer, or API Developer.
NEW
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Familiarity with REST API.
Familiarity with REST API.
NEWFEATURED
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Azure Solutions Architect Inside IR35
Azure Solutions Architect Inside IR35
Henderson Scott
Euston, NW1 2DU
£700 - £850 per day + INSIDE IR35, Hybrid
Integration design (API standards, naming conventions)
Integration design (API standards, naming conventions)
FEATURED
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Design and communicate system architecture diagrams, data flows, and API integrations * Hands-on experience in solution architecture and API design
Design and communicate system architecture diagrams, data flows, and API integrations * Hands-on experience in solution architecture and API design
NEWFEATURED
API Integration
API Integration
NEWFEATURED
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QA Specialist - Hybrid Remote
QA Specialist - Hybrid Remote
VERTECH GROUP (UK) LTD
NW3, North West London
From £50,000 to £55,000 per annum + Benefits
Experience with API testing and familiarity with tools like Postman, SoapUI, or similar
Experience with API testing and familiarity with tools like Postman, SoapUI, or similar
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API integrations
API integrations
FEATURED
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Strong grasp of databases (SQL/NoSQL) and API integrations
Strong grasp of databases (SQL/NoSQL) and API integrations
NEW
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Applications Support Engineer
Applications Support Engineer
Kudos Partners
Datchet Common, SL3
£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)
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Previous experience delivering secure API integrations for banking and real-time content platforms.
Previous experience delivering secure API integrations for banking and real-time content platforms.
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Architect and design enterprise-level integration solutions, defining API-led connectivity, patterns, and specifications. * Proven expertise in MuleSoft Anypoint Platform (including Anypoint Studio, Flow Design, and API Manager). * Strong knowledge of API-led connectivity and integration patterns (REST, SOAP).
Architect and design enterprise-level integration solutions, defining API-led connectivity, patterns, and specifications. * Proven expertise in MuleSoft Anypoint Platform (including Anypoint Studio, Flow Design, and API Manager). * Strong knowledge of API-led connectivity and integration patterns (REST, SOAP).
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Build and implement new API systems integrating third-party service providers, and more.
Build and implement new API systems integrating third-party service providers, and more.
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Build, deploy, and monitor cloud solutions using AWS services (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3). * Design and manage applications using Apigee Edge and X, overseeing the full API lifecycle, driving strategy, and enhancing integrations with analytics. * Enforce security best practices, manage API access (OAuth, API keys, JWT), remediate vulnerabilities, and align with compliance standards in collaboration with security teams. * Strong knowledge of Apigee and API management, including design patterns, performance tuning, and analytics.
Build, deploy, and monitor cloud solutions using AWS services (Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, S3). * Design and manage applications using Apigee Edge and X, overseeing the full API lifecycle, driving strategy, and enhancing integrations with analytics. * Enforce security best practices, manage API access (OAuth, API keys, JWT), remediate vulnerabilities, and align with compliance standards in collaboration with security teams. * Strong knowledge of Apigee and API management, including design patterns, performance tuning, and analytics.
NEW
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.NET Developer
.NET Developer
Halian Technology Limited
W1, Central London
From £70,000 to £80,000 per annum Plus bonus and benefits
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
Proven hands-on experience withAWS servicessuch as Lambda, ECS/Fargate, API Gateway, DynamoDB, S3, CloudFormation/Terraform.
NEW
Senior Solution Architect
Senior Solution Architect
UK Health Security Agency
Canary Wharf, E14 4PU
From £54,416 to £68,344 per annum
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
The United Kingdom Health Security Agency (UKHSA) is a system leader for health security; taking action internationally to strengthen global health security, providing trusted advice to government and the public and reducing inequalities in the way different communities experience and are impacted by infectious disease, environmental hazards, and other threats to health. UKHSAs remit, as an agency with a global-to-local reach, is to protect the health of the nation from infectious diseases and other external threats to health. * Prevent: anticipate threats to health and help build the nations readiness, defences and health security * Detect: use cutting edge environmental and biological surveillance to proactively detect and monitor infectious diseases and threats to health * Analyse: use world-class science and data analytics to assess and continually monitor threats
NEW
Strong background in software architecture, microservices, and API design.
Strong background in software architecture, microservices, and API design.
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Build and work with modern API and microservices architectures
Build and work with modern API and microservices architectures
NEWEQUALITY BOOST
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Build and work with modern API and microservices architectures
Build and work with modern API and microservices architectures
PREMIUM
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Senior Backend Engineer (Platform & Security)
Senior Backend Engineer (Platform & Security)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
Strong understanding of distributed systems, microservices architecture, and API design.
Strong understanding of distributed systems, microservices architecture, and API design.
Senior Backend Engineer (Application & AI Orchestration)
Senior Backend Engineer (Application & AI Orchestration)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
API & Application Development? Partner closely with the Senior Android Engineers to define robust API contracts and ensure a seamless, low-latency experience for the live transcript and mid-call intervention features.
Senior Backend Engineer (Telco Integration Lead)
Senior Backend Engineer (Telco Integration Lead)
Ventula Consulting Limited
The City, EC3V 9DU
Up to £140,000 per annum
We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. Own and build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. Ensure all network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. Collaborate with the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. Deep understanding of API design (REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
We are seeking a foundational engineer to own our single greatest strategic asset: our unique, privileged access to network-level intelligence via the GSMA CAMARA API standard. Own and build the Security Signal Ingestion path, the secure, low-latency, and out-of-band data channel connecting to our founding members' network API gateways. Ensure all network API integrations meet the stringent P99 latency budgets (e.g., < 150ms) required to support our sub-500ms Time-to-Trust product goal. Collaborate with the platform team to build a parallel development path using mocked data to mitigate risks of network API delays. Deep understanding of API design (REST, gRPC, Webhooks) and API security (OAuth 2.0, mTLS, JWTs).
Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
Location: Esher (two days WFH) Must have Right to Work in the UK (cannot provide sponsorship) This person will contribute directly to the organisations digital transformation roadmap by embedding automation and AI into our operations and business. This will involve building AI-powered conversational agents and automating business processes using Microsoft Power Platform tools like Power Apps, Power Automate, and Power Virtual Agents (part of Microsoft Copilot Studio). * Chatbot Development: Design, build, and implement AI chatbots using Power Virtual Agents/Copilot Studio to streamline interactions and automate tasks. * Process Automation: Create automated workflows and processes using Power Automate to improve efficiency and reduce manual tasks, often incorporating AI capabilities. * Application Development: Develop intelligent business applications with Power Apps,
NEW
Related Jobs
Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- Euston
- The Borough
- White Hill
- Canary Wharf
- Datchet Common
- Frimley
- City of London
- South East London
- Reading
- Central London
- West End
- South West London
- Milton Keynes
- Newbury
- North West London
- Cambridge
- London
- Berkshire
- Surrey
- Hampshire
- Oxfordshire
- Buckinghamshire
- East Sussex
- Bedfordshire
- Cambridgeshire
- Hertfordshire
- South East
- East Anglia