19 of 19 Remote/Hybrid Permanent OpenAPI Jobs

Full Stack Java Engineer

Hiring Organisation
Miratech Group
Location
United Kingdom
Salary
£ 70 K
applications using React, TypeScript, reusable components, responsive layouts, and accessible interaction patterns.Develop and consume REST APIs using an API-first approach; maintain clear OpenAPI/Swagger contracts and error handling.Contribute to the design of modular, maintainable solutions using microservices and appropriate object-oriented and event-driven design patterns.Use Node.js ...

Senior AI & Integration Engineer – C# / .NET / Azure

Hiring Organisation
Adria Solutions Ltd
Location
Manchester, United Kingdom
Employment Type
Permanent
Salary
£70000 - £75000/annum
include: Strong C# and modern .NET development, including ASP.NET Core Web APIs and backend services. Azure development, including Azure Functions. REST APIs, HTTP, JSON, OpenAPI/Swagger and webhooks. Integration patterns covering authentication, pagination, rate limits, retries and exception handling. Microsoft Entra ID, OAuth 2.0, application permissions and secure ...

Principal Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
technical direction within your team Required experience Core Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or Java REST API development/OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Senior AI Engineer - Agentic AI

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
Python APIs and services (e.g., FastAPI), incorporating async execution, background jobs and containerized deploymentsIntegrate enterprise systems and tools using protocols such as MCP, A2A, OpenAPI, REST and gRPC, ensuring graceful degradation and retriesApply enterprise security and governance practices including RBAC, prompt safety checks, traceability and secrets managementImplement evaluation pipelines ...

Senior Software Engineer

Hiring Organisation
Raytheon
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 60 K
your peers on technical direction within your teamRequired experienceCore Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or JavaREST API development/OpenAPI/SwaggerCloud services (AWS or Azure)Containerisation & Orchestration (Docker, Kubernetes, OpenShift)Infrastructure as Code (Terraform, Ansible)Relational Databases (e.g. PostgreSQL)Elasticsearch/OpensearchUnit testing ...

Full Stack Software Developer

Hiring Organisation
Data Careers
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
highly regulated environments Additional Experience of Interest Experience with any of the following would be beneficial: Terraform AWS CloudFormation Docker Gatsby REST APIs/OpenAPI GitLab Infrastructure as Code DevOps-focused development practices Scaling and improving existing software products Defence, national security or central government environments Working within blended ...

Full Stack Software Developer

Hiring Organisation
Data Careers
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
highly regulated environments Additional Experience of Interest Experience with any of the following would be beneficial: Terraform AWS CloudFormation Docker Gatsby REST APIs/OpenAPI GitLab Infrastructure as Code DevOps-focused development practices Scaling and improving existing software products Defence, national security or central government environments Working within blended ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
City of London, Greater London, UK
This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

Front End Software Engineer (Typescript)

Hiring Organisation
Safe Intelligence
Location
Cardiff, United Kingdom
This includes knowledge of database (MongoDB) access patterns (e.g., Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. Familiarity with the OpenAPI specification and code generation toolsets for API development. Some experience with Python, modern development techniques, and design patterns. Experience in data science tools ...

Senior Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
maintaining board to board and digital interfaces: CAN, SPI, IC, UART and RS422 Building networked services and interfaces including REST APIs, SNMP agents and OpenAPI specifications Developing and debugging TCP and UDP communication layers, and getting into the weeds on protocol performance Secure communications: authentication, encryption, secure firmware update ...

Integration Architect

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
interface/API specifications . Design and govern enterprise APIs using Azure API Management (APIM) . Define API design and governance standards, including OpenAPI/Swagger, versioning, schema management and API lifecycle management . Design APIM Products, subscriptions, throttling and consumption models for internal and external consumers. Establish reusable … Azure Service Bus | Event Grid | Logic Apps | Azure Functions | OAuth2 | OIDC | JWT | Entra ID | Key Vault | Terraform | Bicep | Azure DevOps | CI/CD | APIOps | OpenAPI/Swagger | Azure Monitor | Application Insights Additional Information Why our client? We believe in providing our employees with a comprehensive benefits package that prioritises ...

UX Engineer TypeScript React - FinTech

Hiring Organisation
Client Server
Location
London, United Kingdom
Salary
£ 55 K
code, with automated testing experience using tools such as Vitest and PlaywrightYou have experience integrating REST APIs and working with API contracts, ideally using OpenAPI specificationsYou have an eye for detail and a genuine interest in usability, visual consistency and high quality user experiencesYou have hands-on experience using ...

Software Engineer - Space Domain Awareness

Hiring Organisation
GMV
Location
Nottingham, Nottinghamshire, United Kingdom
Salary
£ 60 K
national and institutional customers, tasks will include:Design, develop and maintain Java micro-services within an agile delivery environment.Develop and evolve RESTful APIs using OpenAPI and JSON.Implement automated tests at different levels to support robust and maintainable software delivery.Contribute to the integration of software components such as databases, workflow … working on agile projectsProficient in Java.Knowledge of automated testingStrong experience in development and automated testing of Java micro-services.Recent experience developing RESTful APIs using OpenAPI and JSON.Excellent teamworking and communication skills.Pragmatic, adaptable and delivery-focused profile, able to respond to changing requirements and priorities.This role requires a UK national ...

Software Engineer - Space Domain Awareness

Hiring Organisation
GMV
Location
Didcot, Oxfordshire, United Kingdom
Salary
£ 70 K
national and institutional customers, tasks will include:Design, develop and maintain Java micro-services within an agile delivery environment.Develop and evolve RESTful APIs using OpenAPI and JSON.Implement automated tests at different levels to support robust and maintainable software delivery.Contribute to the integration of software components such as databases, workflow … working on agile projectsProficient in Java.Knowledge of automated testingStrong experience in development and automated testing of Java micro-services.Recent experience developing RESTful APIs using OpenAPI and JSON.Excellent teamworking and communication skills.Pragmatic, adaptable and delivery-focused profile, able to respond to changing requirements and priorities.This role requires a UK national ...

Software Engineer - Space Domain Awareness

Hiring Organisation
GMV
Location
Didcot, Oxfordshire, UK
Employment Type
Full-time
institutional customers, tasks will include: Design, develop and maintain Java micro-services within an agile delivery environment. Develop and evolve RESTful APIs using OpenAPI and JSON.Implement automated tests at different levels to support robust and maintainable software delivery. Contribute to the integration of software components such as databases, workflow … agile projectsProficient in Java. Knowledge of automated testingStrong experience in development and automated testing of Java micro-services. Recent experience developing RESTful APIs using OpenAPI and JSON.Excellent teamworking and communication skills. Pragmatic, adaptable and delivery-focused profile, able to respond to changing requirements and priorities. This role requires ...

Lead Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
Salary
£90,000
Our client is a public sector technology consultancy. About our client Our aim at our client is to use human-centred technology to improve our society. We believe putting people at the heart of designing ...

Senior AI/Data Science Consultant

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
data groundingArchitect reusable AI design patterns including human-in-the-loop workflows and multi-agent coordination modelsApply agent integration and communication standards (MCP, A2A, OpenAPI, REST, gRPC)Lead technical delivery of AI projects, managing timelines, dependencies, and stakeholder expectationsEnsure delivery adheres to AI governance, data privacy, and regulatory frameworksSupport … model evaluation approachesHands-on experience with multi-agent orchestration frameworks (LangGraph, CrewAI, AutoGen, Semantic Kernel)Familiarity with orchestration protocols such as MCP, A2A, and OpenAPI-based integrationStrong Python development skills and knowledge of CI/CD, DevOps, and cloud-native architecturesPractical experience with Azure (Azure OpenAI, Azure AI Foundry ...

Senior AI Engineer / Data Scientist

Hiring Organisation
EPAM Systems
Location
London, UK
Employment Type
Full-time
enterprise data groundingDevelop orchestration engines supporting multi-step planning, delegation, and fallback paths for agent workflowsImplement integration and communication patterns via MCP, A2A, OpenAPI, REST, and gRPCBuild production-grade Python APIs and microservices integrating with enterprise systems and AI servicesApply observability and monitoring solutions (Langfuse, Arize, Grafana) to ensure … agent orchestration frameworks (LangGraph, CrewAI, AutoGen, Semantic Kernel)Familiarity with orchestration strategies like planner/executor and tool callingKnowledge of MCP, A2A protocols, and OpenAPI-based integration methodsStrong experience with cloud environments, ideally Azure (Azure OpenAI, AI Foundry, AI Search)Competence in containerized deployments, CI/CD, and MLOps ...

Test Manager/Data & Integration Test Lead

Hiring Organisation
Reed
Location
London, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Test Manager/Data & Integration Test Lead Contract Duration: Until January 2027 Location: Farringdon, London (Hybrid - 3 days a week) Job Type: Contract We are seeking an experienced Test Manager/Data & Integration Test Lead ...