14 of 14 Permanent OpenAPI Jobs in England

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Document Processing & OCR - Experience implementing intelligent document processing solutions using OCR technologies (Tesseract, Azure ...

Senior Software Developer C# / Azure

Hiring Organisation
Greenfield I T Recruitment
Location
Liverpool, Merseyside, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
modern frontend integration Strong database design and optimisation skills (T-SQL and analytical data stores) Experience with API security and documentation (e.g. OAuth, OpenAPI/Swagger) Comfortable working in Agile teams and collaborative engineering environments Desirable Experience Terraform, Docker, and exposure to containerised environments Event-driven architectures, messaging ...

Software Developer

Hiring Organisation
Adecco
Location
Leyland, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 per annum
Core (DbContext, LINQ, Migrations) Debug end-to-end request flows(UI Controller API Database Response) Maintain and publish API documentation using Swagger/OpenAPI Ensure API security, reliability, and performance including: Proper error handling Retry logic Logging Timeouts CORS configuration Collaborate with database, infrastructure, and QA teams throughout release ...

Backend Developer

Hiring Organisation
Damia Group Ltd
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent
Salary
£40,000
version control (Git), and DevOps practices Familiarity with API gateways, webhooks, and event-driven architectures Experience writing or contributing to API documentation (Swagger/OpenAPI is a plus) Previous experience with Delphi is a plus Damia Group Limited acts as an employment agency for permanent recruitment and employment business ...

Full Stack Engineer

Hiring Organisation
algo1
Location
England, United Kingdom
Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real ...

Software Developer

Hiring Organisation
Reed
Location
Wellington, Somerset, England, United Kingdom
Employment Type
Full-Time
Salary
£41,000 - £51,000 per annum, Inc benefits
programming, and dependency injection. Quality-focused with experience in unit testing (Jest/NUnit or similar) and code review. Knowledge of RESTful API design, OpenAPI/Swagger, and NoSQL databases. Excellent collaboration skills, with experience working closely with product teams, platform teams, developers, and testers. Strong written and verbal ...

Lead Software Developer

Hiring Organisation
C4S Search Ltd
Location
Swindon, Wiltshire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £70,000 per annum
/CD and Infrastructure as Code using Azure DevOps or GitHub Actions, and Bicep or Terraform. Expertise in designing, securing, and delivering RESTful APIs (OpenAPI/Swagger, versioning, caching, RBAC). Strong understanding of Azure AD/Entra ID, OAuth2/OIDC, Managed Identity, and secrets management. Proven experience ...

Lead Developer

Hiring Organisation
Pure Resourcing Solutions
Location
Snailwell, Newmarket, Suffolk, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
engineering. Strong experience with .NET Core/.NET Framework. Proficiency with unit and integration testing. Hands on experience with API documentation tools (Swagger/OpenAPI). Understanding of versioning and backwards compatibility strategies. Exposure to CI/CD pipelines (Azure DevOps, Jenkins etc.). Core Competencies Strategic thinker with ...

Full Stack Developer - .NET/C# - Angular

Hiring Organisation
Planet Recruitment
Location
Bristol, United Kingdom
Employment Type
Permanent
Salary
£40000 - £50000/annum
basics (WCAG) * Back end: .NET (C#), asynchronous programming, dependency injection * Quality: Unit testing - Jest/NUnit or similar, code review * APIs & data: RESTful design, OpenAPI/Swagger, NoSQL databases * Ways of working: Collaborating with product/platform/developers/testers, strong written and verbal communication, attention to detail ...

Full Stack Developer - .NET/C# - Angular

Hiring Organisation
Planet Recruitment
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
Salary
£40000 - £50000/annum
basics (WCAG) * Back end: .NET (C#), asynchronous programming, dependency injection * Quality: Unit testing - Jest/NUnit or similar, code review * APIs & data: RESTful design, OpenAPI/Swagger, NoSQL databases * Ways of working: Collaborating with product/platform/developers/testers, strong written and verbal communication, attention to detail ...

Data Analyst - Integrations

Hiring Organisation
Precise Placements
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £65,000 per annum
Skills & Experience: Proven experience in a Data Analyst or similar technical role. Strong hands-on experience with RESTful API design , documentation (Swagger/OpenAPI), and testing tools (e.g. Postman). Proficiency in SQL and scripting languages such as Python or R . Solid understanding of data modelling, ETL processes ...

Mulesoft Architect

Hiring Organisation
167 Solutions Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
MuleSoft Anypoint Platform (Studio, API Manager, Runtime Manager) Solid understanding of API-led connectivity and enterprise integration patterns Experience with REST, SOAP, RAML/OpenAPI, JSON, XML Strong DataWeave development and transformation experience Familiarity with CI/CD pipelines and cloud deployment models Ability to manage both design-level ...

Senior Azure API Engineer

Hiring Organisation
Vermillion Analytics
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£550 - £750 per day
operationalise a lean, zero-trust API platform on Azure API Management Architect microservices and event-driven integration flows at scale Define API specifications using OpenAPI and implement modern integration patterns Drive CI/CD automation, monitoring, and operational excellence Mentor developers and champion best practices across the engineering team … that delight users What You Bring Essential: 10+ years software development, including 3+ years hands-on Azure Deep expertise in Azure API Management Strong OpenAPI, RESTful API design, and security protocols (OAuth 2.0, JWT, TLS) Proficiency in Node.js/Java/C# and modern integration patterns Experience with ...

Staff Full Stack Engineer

Hiring Organisation
Addition
Location
England, United Kingdom
Technology is at the heart of this fast-growing digital bank — powering the systems that make business banking simpler, faster and smarter. This role is about setting the technical direction across payments, shaping scalable systems ...