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17 Permanent API jobs in Chapel Green, Wokingham + 20 miles
256 exact matches jobs are outside your preferred location
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We have partnered with a successful SaaS company based in Milton Keynes which are currently experiencing rapid growth and are partnering with major clients within their industry. They now have an exciting opportunity for a Software Developer skilled across the Microsoft Tech Stack - .NET Core, C#, ASP.NET, SQL, and Azure. The successful candidate will be working across the whole SDLC from inception through to design, implementation and deployment of their SaaS platform. This role is mostly onsite so candidates must be willing to travel to Milton Keynes a minimum of four days a week. * .NET Framework - C# .NET, .NET Core, ASP.NET Core * Entity Framework Core * Azure Cloud - Azure DevOps * JavaScript * RESTful APIs / Web APIs * Git - Benefits Package * Competitive Salary (DOE) * Flexi-hours * Private healthcare * Company car scheme * Social events and Company days out
We have partnered with a successful SaaS company based in Milton Keynes which are currently experiencing rapid growth and are partnering with major clients within their industry. They now have an exciting opportunity for a Software Developer skilled across the Microsoft Tech Stack - .NET Core, C#, ASP.NET, SQL, and Azure. The successful candidate will be working across the whole SDLC from inception through to design, implementation and deployment of their SaaS platform. This role is mostly onsite so candidates must be willing to travel to Milton Keynes a minimum of four days a week. * .NET Framework - C# .NET, .NET Core, ASP.NET Core * Entity Framework Core * Azure Cloud - Azure DevOps * JavaScript * RESTful APIs / Web APIs * Git - Benefits Package * Competitive Salary (DOE) * Flexi-hours * Private healthcare * Company car scheme * Social events and Company days out
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Familiarity with REST API.
Familiarity with REST API.
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Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Syntax Consultancy Ltd
West Fields, RG14
£450 - £450 Per Day £425-£450/day (Outside IR35)
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
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Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Network Telecom Transformation Architect (Fixed, Telecom, Enterprise, Cloud)
Syntax Consultancy Limited
West Fields, RG14
£450 Per Day £425-£450/day (Outside IR35)
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
Strategic: NaaS/NaaP enablement, TMF/MEF alignment, Service Catalogs, API exposure. * End-to-end network transformation across Fixed, IP/MPLS, SD-WAN, FTTx, and Telco Cloud domains; architecting scalable, automated, and API-driven network platforms aligned with TMF and MEF standards; * Define and implement Network-as-a-Service (NaaS) and Network-as-a-Platform (NaaP) frameworks — enabling on-demand, API-driven, and intent-based network capabilities aligned with TMF Open APIs and MEF LSO standards. * Drive transformation programs to modernize legacy OSS/BSS stacks into modular, API-exposed digital ecosystems.
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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
Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP
Proficiency in cloud platforms, API development, message buses, DevOps practices, and languages such as C#, Python, or PHP
FEATURED
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.NET Framework Version 4.5 or above including strong WCF\ Web API experience
.NET Framework Version 4.5 or above including strong WCF\ Web API experience
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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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Strong grasp of databases (SQL/NoSQL) and API integrations
Strong grasp of databases (SQL/NoSQL) and API integrations
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Senior Software Engineer
Senior Software Engineer
Halian Technology Limited
W1, Central London
From £90,000 to £95,000 per annum Plus bonus and benefits
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
Cloud experience withAWSservices (Lambda, API Gateway, S3, etc.)
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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.
Deep understanding of RESTful API design and integration
Deep understanding of RESTful API design and integration
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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.
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Strong experience with Python and API frameworks (FastAPI, Flask, etc.)
Strong experience with Python and API frameworks (FastAPI, Flask, etc.)
FEATURED
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Principal Software Engineer – IOT & FULL-STACK
Principal Software Engineer – IOT & FULL-STACK
Gerrell & Hard
Bicester, Oxfordshire
Unspecified £competitive
Proficiency in API and cloud development (AWS/Azure, MQTT, WebSockets)
Proficiency in API and cloud development (AWS/Azure, MQTT, WebSockets)
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
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Lead .Net Software Developer
Lead .Net Software Developer
Hireful
Milton Keynes, Buckinghamshire
£65k - £75k base salary plus Bonus and awesome benefits
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
Are you a hands-on Lead or Senior .Net Developer ready to shape architecture and guide talented developers? Want a hybrid role with 3 days WFH? This is your chance to stay close to the code while making key technical decisions that drive real business impact. You'll join a collaborative, forward-thinking team building cutting-edge products — with the support, tools, and flexibility to thrive. Role: Lead Software Developer, Senior .Net Developer, Software Engineering Manager, Senior Full Stack Developer, Lead .Net Developer, Lead Software Engineer, Senior C# Developer - Salary: £65k - £75k base + Bonus - Benefits: 5% pension, 25 days holiday, 2 wellbeing days, Christmas shutdown, private healthcare, life assurance, cinema tickets & more - Location: Milton Keynes – Hybrid (2 days a week in office) If you’ve got strong .Net (C#) experience and skills in GitHub, APIs, Pos
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Senior Front End Developer (Vue, Nuxt)
Senior Front End Developer (Vue, Nuxt)
Stott & May Professional Search Limited
London
£90000 - £95000.00 per annum + Benefits
Strong API integration skills, consuming and integrating RESTful and GraphQL APIs, with an understanding of security mechanisms.
Strong API integration skills, consuming and integrating RESTful and GraphQL APIs, with an understanding of security mechanisms.
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At the heart of this new application is allowing extensibility via the integration of the Python framework alongside a set of open API's that give access to core functionality of the application. This project would be responsible for proving the early stage integration of our new pre & post processing application and other tooling into a wider workflow by leveraging our initial extensibility framework and API's.
At the heart of this new application is allowing extensibility via the integration of the Python framework alongside a set of open API's that give access to core functionality of the application. This project would be responsible for proving the early stage integration of our new pre & post processing application and other tooling into a wider workflow by leveraging our initial extensibility framework and API's.
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This role requires a deep understanding of cloud infrastructure, API management, and continuous integration and deployment practices. * Build, deploy, and monitor solutions using AWS services such as Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, and S3. * Execute and manage the end-to-end application lifecycle using Apigee Edge and X-API strategy. * Perform API strategy execution, provide technical support, and generate insights through analytical reports. * Strong knowledge of the Apigee platform or any APM (API Management) platform and its components. * Ability to generate custom analytical reports for API consumption and error tracking. * Familiarity with API security and access control mechanisms (OAuth, API keys, JWT, etc.
This role requires a deep understanding of cloud infrastructure, API management, and continuous integration and deployment practices. * Build, deploy, and monitor solutions using AWS services such as Lambda, API Gateway, CloudWatch, ECS, ECR, DynamoDB, and S3. * Execute and manage the end-to-end application lifecycle using Apigee Edge and X-API strategy. * Perform API strategy execution, provide technical support, and generate insights through analytical reports. * Strong knowledge of the Apigee platform or any APM (API Management) platform and its components. * Ability to generate custom analytical reports for API consumption and error tracking. * Familiarity with API security and access control mechanisms (OAuth, API keys, JWT, etc.
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Strong background in software architecture, microservices, and API design.
Strong background in software architecture, microservices, and API design.
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Perform API testing and ensure robust validation of service integrations. * Experience in API testingand service virtualisation.
Perform API testing and ensure robust validation of service integrations. * Experience in API testingand service virtualisation.
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Experience in API and BDD testing
Experience in API and BDD testing
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Security Architecture Secure Design Team - Role: Manager Principal Security Architect: Secure Design (Individual Contributor) Grade: GG14 - The Security Architecture Design team is responsible for developing Security Architecture patterns, developing security controls needed for new technology, promoting the use of the architectural patterns into development projects, leading the Security Architecture Design Forum, Evaluating architectural security risks in existing systems, consulting with system development teams and architects on building security into their design. This key task of this role is accelerating the delivery of secure design artefacts and leading secure design interventions - by adding capacity and capability to the team. Reports to: Senior Manager Secure Design - Key Relationships * Business Aligned Principal Security Architects * CyberSecurity Engine
Security Architecture Secure Design Team - Role: Manager Principal Security Architect: Secure Design (Individual Contributor) Grade: GG14 - The Security Architecture Design team is responsible for developing Security Architecture patterns, developing security controls needed for new technology, promoting the use of the architectural patterns into development projects, leading the Security Architecture Design Forum, Evaluating architectural security risks in existing systems, consulting with system development teams and architects on building security into their design. This key task of this role is accelerating the delivery of secure design artefacts and leading secure design interventions - by adding capacity and capability to the team. Reports to: Senior Manager Secure Design - Key Relationships * Business Aligned Principal Security Architects * CyberSecurity Engine
Related Jobs
Locations
- The City, City (EC3)
- Southwark
- The City, City (EC4)
- West Fields
- Euston
- The Borough
- Canary Wharf
- Datchet Common
- Mayfair
- Shoreditch
- City of London
- South East London
- South West London
- Central London
- Milton Keynes
- Reading
- Southampton
- West End
- Newbury
- Abingdon
- London
- Berkshire
- Hampshire
- Buckinghamshire
- Oxfordshire
- Surrey
- Hertfordshire
- Wiltshire
- Bedfordshire
- East Sussex
- South East
- South West