76 to 100 of 157 OpenAPI Jobs

Senior ML Software Developer (Brahma AI - A DNEG Dedicated Unit of Brahma)

Hiring Organisation
DNEG
Location
London, UK
Employment Type
Full-time
gates. Require code reviews for all merges; maintain modular, testable designs with clear separation of concerns and DCC-agnostic cores where applicable. Documented APIs (OpenAPI/Protobuf), versioned schemas, and backward-compatible changes. Secure-by-default practices (authn/z, secrets management), performance budgets, and telemetry by design. Primary ...

Senior Developer

Location
Greater London, England, United Kingdom
document processing or agentic workflows. Authentication and identity platforms such as Auth0. Geospatial technologies including GeoJSON, HERE, Mapbox or QGIS. Stripe or payment platforms. OpenAPI, SDK generation or developer platform tooling. ISO 27001, Cyber Essentials or secure software development practices. Our tech stack (This isn't a shopping list ...

Kong API Management

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £450.00 per day
cloud-native experience. · API management: Professional experience with API management technologies (e.g., Apigee, Kong, or MuleSoft). · API design: Strong understanding of the OpenAPI Specification (OAS) for RESTful APIs. · API security: Hands-on experience securing APIs at the gateway, including OAuth 2.0, OpenID Connect (OIDC), JWT validation, key-auth ...

Envoy API Engineer

Hiring Organisation
Uniting People
Location
Glasgow, Lanarkshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 425 Daily
Practical, hands-on cloud-native engineering experience Professional experience with Envoy Proxy and/or Envoy Gateway Strong understanding of RESTful APIs and the OpenAPI Specification (OAS) Hands-on experience implementing authentication and authorisation at API gateway level Strong experience with: OAuth 2.0 OpenID Connect (OIDC) JWT validation Mutual ...

Senior Backend Developer with Umbraco C# .net

Location
Greater London, England, United Kingdom
/managing resources/deploying apps Familiar with JIRA and Confluence Capable of working with (and developing) multiple (REST) APIs documented with e.g. OpenAPI/swagger and other API messaging formats e.g. JSON, XML, SOAP Experience of PowerBI, PowerQuery and R Experience of structured testing and quality assurance approaches ...

Senior Software Engineer

Location
Warmley, England, United Kingdom
Looking For Strong commercial Kotlin development experience Android application development expertise Experience with Git and modern software development workflows Understanding of MVVM, UDF, OpenAPI, APIs, and software design principles Exposure to backend development using Rust, Python, or Go Experience with Docker, CI/CD pipelines, and automated testing Excellent ...

Senior Software Engineer

Hiring Organisation
Computer Network Defence Ltd (CND)
Location
Cheltenham, England, United Kingdom
Looking For Strong commercial Kotlin development experience Android application development expertise Experience with Git and modern software development workflows Understanding of MVVM, UDF, OpenAPI, APIs, and software design principles Exposure to backend development using Rust, Python, or Go Experience with Docker, CI/CD pipelines, and automated testing Excellent ...

Software Engineer

Hiring Organisation
Addition
Location
Cheltenham, England, United Kingdom
change quickly. Familiarity with backend development using Rust, Python or Go. Understanding of software development principles including MVVM and UDF. Understanding of Web APIs, OpenAPI standards and data structures. Experience with Docker and containerised deployments. Knowledge of DevOps processes, including CI/CD pipelines and automated testing. Strong communication ...

Software Engineer

Location
Warmley, England, United Kingdom
change quickly. Familiarity with backend development using Rust, Python or Go. Understanding of software development principles including MVVM and UDF. Understanding of Web APIs, OpenAPI standards and data structures. Experience with Docker and containerised deployments. Knowledge of DevOps processes, including CI/CD pipelines and automated testing. Strong communication ...

Senior Software Engineer (AI, CoPilot Studio)

Hiring Organisation
Pontoon
Location
Dublin, City of Dublin, Republic of Ireland
Employment Type
Contract
Contract Rate
£474/day
delivering enterprise technology solutions. Strong expertise in Python development. Proven experience in designing and building REST APIs and system integrations. Familiarity with Swagger/OpenAPI specifications and API documentation. Solid understanding of JSON, web services, and modern integration patterns. Experience owning technical design for medium to large software delivery ...

Full-stack Lead Software Engineer — Application Owner

Location
Greater London, England, United Kingdom
with relational databases such as MySQL or similar, along with exposure to cloud platforms, infrastructure-as-code practices, and API documentation standards such as OpenAPI/Swagger Demonstrated understanding of application lifecycle management practices, including familiarity with application registration, governance tooling, and compliance requirements within a regulated enterprise technology ...

Principal Java Engineer - Backend Platform

Location
Bristol, England, United Kingdom
deliver it independently. Experience with cloud infrastructure and event-driven architectures (e.g. Kafka or equivalent streaming technology). Experience designing and evolving API contracts (OpenAPI or similar) in a fast-moving, still-evolving product environment. Familiarity with modern cloud identity and access management approaches (e.g. AWS Cognito or equivalent ...

Principal Java Engineer - Backend Platform

Location
Basingstoke, England, United Kingdom
deliver it independently. Experience with cloud infrastructure and event-driven architectures (e.g. Kafka or equivalent streaming technology). Experience designing and evolving API contracts (OpenAPI or similar) in a fast-moving, still-evolving product environment. Familiarity with modern cloud identity and access management approaches (e.g. AWS Cognito or equivalent ...

Principal Java Engineer - Backend Platform

Location
Greater London, England, United Kingdom
deliver it independently. Experience with cloud infrastructure and event-driven architectures (e.g. Kafka or equivalent streaming technology). Experience designing and evolving API contracts (OpenAPI or similar) in a fast-moving, still-evolving product environment. Familiarity with modern cloud identity and access management approaches (e.g. AWS Cognito or equivalent ...

Full-stack Lead Software Engineer Application Owner

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
with relational databases such as MySQL or similar, along with exposure to cloud platforms, infrastructure-as-code practices, and API documentation standards such as OpenAPI/Swagger Demonstrated understanding of application lifecycle management practices, including familiarity with application registration, governance tooling, and compliance requirements within a regulated enterprise technology ...

Full-stack Lead Software Engineer — Application Owner

Hiring Organisation
Appcast
Location
London, UK
with relational databases such as MySQL or similar, along with exposure to cloud platforms, infrastructure-as-code practices, and API documentation standards such as OpenAPI/SwaggerDemonstrated understanding of application lifecycle management practices, including familiarity with application registration, governance tooling, and compliance requirements within a regulated enterprise technology environmentExperience ...

Kong API Engineer (urgent start)

Hiring Organisation
Uniting People
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 440 Daily
Golang and/or Lua Hands-on experience with API Management platforms , ideally Kong API Gateway Strong understanding of RESTful APIs and the OpenAPI Specification (OAS) Hands-on API security experience, including: OAuth 2.0 OpenID Connect (OIDC) JWT validation Key Authentication Mutual TLS (mTLS) Strong cloud-native engineering experience ...

Remote API Engineer — TypeScript & AWS Integrations

Location
United Kingdom
modern TypeScript architecture, building REST APIs and integrations with AWS cloud-native patterns. You’ll work closely with a small engineering group, contributing to OpenAPI standards, containerised deployments, and scalable API design to support customer-facing apps and third parties. #J-18808-Ljbffr ...

Senior Software Engineer – Public Sector Impact, Remote

Location
Swansea, Wales, United Kingdom
native practices across monoliths and microservices. You’ll work with Java, Ruby, Python, ES6 with React, and C#/.NET Core, while embracing Terraform, OpenAPI, AWS Lambda and CI/CD. We value learning, collaboration, and delivering real outcomes for users. #J-18808-Ljbffr ...

Front End Developer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£420 - £476/day
component-library development using custom design patterns, encompassing MUI, Storybook and Figma. Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types. Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect. CI/CD, dependency management and frontend security practices. Experience working ...

Front End Developer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £579/day
component-library development using custom design patterns, encompassing MUI, Storybook and Figma. Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types. Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect. CI/CD, dependency management and frontend security practices. Experience working ...

C# .Net Core Developer - Fintech50- Manchester

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
.· Experience of .Net core· Full stack development skills· Experience of working with REST APIs, using a design first approach and adhering to the OpenAPI spec· Strong background in database technologies, specifically Oracle and using Entity Framework· Knowledge of working with event-based systems, any experience of Apache Kafka ...

Software Engineer

Hiring Organisation
IBM SIXworks Limited
Location
Cheltenham, Gloucestershire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
common. Familiarity with backend development languages such as Rust, Python, or Go. Solid understanding of software development principles (MVVM, UDF), Web APIs, standards (e.g. OpenAPI), and data structures. Experience with Docker for containerisation and deployment. Knowledge of DevOps processes, including CI/CD pipelines and automated testing frameworks. Strong ...

Front-end Engineer (React / TypeScript)

Location
Greater London, England, United Kingdom
Experience with writing automated tests and testing frameworks like Vitest and Playwright. Experience consuming and helping shape REST API contracts, including working with an OpenAPI specification. Ability to implement beautiful styles using CSS. Real experience of AI-assisted development, and a clear view on where it helps and where ...

Senior Software Engineer — Remote & Flexible Hours

Location
Swansea, Wales, United Kingdom
coach teams to improve outcomes. You will work on monoliths and microservices, implement CD pipelines, document architecture, and apply IaC with Terraform and OpenAPI while using AWS and containerisation. #J-18808-Ljbffr ...