1 to 25 of 43 Remote/Hybrid OpenAPI Jobs in the UK

Full Stack Java Engineer

Location
Shefford, England, United Kingdom
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 ...

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
South East, United Kingdom
Employment Type
Temporary Contract, On-site
Salary
Up to £525 per day + Inside IR-35
/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform ...

Senior Software Engineer

Hiring Organisation
Tech Talent House LTD
Location
Glasgow, Glasgow City, City of Glasgow, United Kingdom
Employment Type
Permanent
Salary
£50000 - £55000/annum 25 days’ holiday + B/H & Healthcar
software engineering practices. The ideal candidate will bring experience across the following technologies: Java 17+ and Spring Boot for backend application development. REST APIs, OpenAPI, JSON and microservices architecture. PostgreSQL, Spring Data JPA/Hibernate and Flyway. Apache Kafka, Amazon MSK and event-driven architectures. AWS cloud services, including ...

Senior Software Engineer

Hiring Organisation
Raytheon
Location
United Kingdom
Employment Type
Permanent Contract
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 ...

Software Engineer - Senior Consultant II - (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
driven autonomous workflows and intelligent agents. Extensive experience in designing and developing REST APIs, including API documentation and specifications using Swagger/OpenAPI, API versioning, testing, monitoring, and lifecycle management. Proficiency inPython software development, with experience building scalable and maintainable enterprise applications. Good understanding ofMicrosoft Fabric, including data integration ...

.NET Developer, Consultant, Manager

Location
Belfast City District, Northern Ireland, United Kingdom
accessibility, resilience, performance, and observability) during design and development. Solid understanding of Object‐Relational Mapping principles and proficiency with Entity Framework Core. Experience using OpenAPI/Swagger for API documentation and coding alongside AI assistants such as GitHub Copilot. Experience with test tools and frameworks such as xUnit, NUnit ...

Software Engineer

Hiring Organisation
Raytheon
Location
United Kingdom
Employment Type
Permanent Contract
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 ...

Integration Architect

Location
Newcastle upon Tyne, England, United Kingdom
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 ...

Senior QA Automation Engineer (Remote)

Location
United Kingdom
/CD pipelines using Jenkins, Azure DevOps, GitHub Actions, GitLab CI, or similar platforms. Strong experience in API testing using Postman, Swagger/OpenAPI, REST Assured, or equivalent tools, including testing RESTful APIs, microservices, and distributed architectures. Advanced SQL skills with experience writing complex queries for backend validation, data ...

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 ...

Software Engineer Consultant

Location
Greater London, England, United Kingdom
Experience with multiple programming languages, including Python, Java, C++, Rust, or Go Experience with associated software development frameworks and tools such as pytest and OpenAPI Experience working in Unix/Linux environments Knowledge of database systems and proficiency in database query languages/tools Familiarity with software development methodologies ...

Senior Software Engineer

Location
Bradley Stoke, England, United Kingdom
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 Software Engineer

Location
Manchester, England, United Kingdom
peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search Technologies Relational Databases ...

Platform Consultant - Senior Expert

Location
Belfast City District, Northern Ireland, United Kingdom
Java, JavaScript, Python, Go, Rust, or other modern programming languages Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger Experience integrating security controls and automated security testing into CI/CD pipelines Experience applying AI, automation, and modern engineering tools ...

Principal Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent Contract, Hybrid
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 ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
every area above - we can support with training and development in some areas! JavaScript frameworks (React, NextJS) TypeScript Python 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 Unit ...

Senior Zephyr Embedded Engineer for RF & Networking

Location
Cambridge, England, United Kingdom
board and digital communication interfaces , including CAN, SPI, I2C, UART and RS422. Developing networking interfaces and services, including REST APIs, SNMP agents and OpenAPI specifications . Developing and debugging TCP/UDP communication layers and investigating low-level networking and protocol performance. Developing secure communications, including authentication, encryption, secure ...

Platform Consultant - (Multiple Levels) - (Hybrid OR Remote)

Location
Belfast City District, Northern Ireland, United Kingdom
Java, JavaScript, Python, Go, Rust, or other modern programming languages. Experience designing and reviewing RESTful APIs and API-first architectures using specifications such as OpenAPI or Swagger. Experience integrating security controls and automated security testing into CI/CD pipelines. Experience applying AI, automation, and modern engineering tools ...

Integration Architect

Location
Greater London, England, United Kingdom
Kafka/Pulsar), messaging patternsBackend: Java, Spring Boot, microservices, REST/gRPCCloud: AWS (EKS/ECS, SQS/SNS, API Gateway, Terraform)API: OpenAPI/AsyncAPI, versioning, governanceFrontend: React/TypeScript (working knowledge)Domain Expertise (any of these)Real-Time Ledger (accounting, event sourcing)Payments (SWIFT, ISO 20022, settlement ...

Lead Technical Business Analyst

Location
London Borough of Croydon, England, United Kingdom
systems, event-driven architectures, APIs, and data flows. Familiarity with tools such as JIRA and Confluence. Understanding of technical concepts such as RESTful services, OpenAPI/Swagger, CI/CD pipelines, containers, and microservices. Previous involvement in cloud infrastructure, platform, or enterprise technology programmes. SC/NPPV3 clearance ...

Senior Full-Stack Engineer (Integrations)

Location
City of Edinburgh, Scotland, United Kingdom
Essential Skills & Experience Strong software engineering fundamentals, including maintainable design, testing, code review and continuous improvement. Extensive experience designing and securing APIs, including REST, OpenAPI, OAuth 2.0, OpenID Connect and service-to-service communication. Strong Microsoft Azure experience covering application hosting, networking, monitoring and integration services. Advanced C# ...

Quality Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day
Playwright, Selenium, JUnit, Cucumber/Gherkin Performance & Security Testing: Gatling, OWASP ZAP, SonarQube Accessibility Testing: Axe, WAVE, WCAG Development & Testing Tools: WireMock, GitHub Copilot, OpenAPI Cloud & Infrastructure: AWS, Docker, Kubernetes, Microservices Contract Details Rate: £400-£430 per day (Inside IR35) Duration: 12 months Location: Telford - minimum 2 days ...

Software Engineering Team Lead

Location
Greater London, England, United Kingdom
first mindset by designing, documenting, and ensuring the quality of robust, efficient HTTP/REST APIs for microservice communication (including using tools like OpenAPI/Swagger). Ensure System Health: Oversee and implement strategies for system scalability, resilience, and high availability, including ownership of monitoring, alerting, and performance optimization. ...

Senior AI Platform Engineer, MLOps & Scale

Location
Cambridge, England, United Kingdom
reporting, including eval harnesses, regression gates, and drift or quality monitoring for non-deterministic systems. Proficiency in API-first design, including REST and OpenAPI specifications, designing APIs that are scalable, secure, versioned, and extensible. Solid working knowledge of AWS and containerized workloads (e.g., Docker), and familiarity with infrastructure ...

Senior Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Cambridge, East Anglia, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£85,000
maintaining board to board and digital interfaces: CAN, SPI, I2C, 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 ...