1 to 25 of 27 Permanent OpenAPI Jobs in the UK excluding London

/.NET 8 | ASP.NET Core | REST APIs | SQL Server | Entity Framework | Azure | Azure DevOps | Git | Docker | Kubernetes | Kafka | Redis | JSON/XML | Swagger/OpenAPI Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ...

Experience with Java and related frameworks (SpringBoot, Eclipse RCP, OData, Hibernate, JPA, REST, etc.) Backend development including REST APIs with Spring Boot, Swagger/OpenAPI specifications, Spring Security, OAuth2/OIDC, JWT. Git-based workflows and Gitlab CI/CD pipelines. Experience working in an Agile development environment (Scrum ...

Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT Messaging ...

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 ...

knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-haves: 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 ...

query tuning, indexing and execution plans High-traffic E-commerce or transactional systems Cloud experience, ideally AWS Strong RESTful API design: versioning, idempotency, caching, OpenAPI/Swagger Production ownership: monitoring and profiling .NET apps (eg Datadog, New Relic, CloudWatch) Daily use of AI coding tools (Claude Code, Copilot, Cursor ...

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 ...

experience, including: C# and modern .NET , including ASP.NET Core Object-oriented development, SOLID principles and dependency injection Designing, building and consuming REST APIs , including OpenAPI Microsoft Azure , particularly PaaS and serverless services Relational databases, SQL and data modelling Git, pull requests and automated CI/CD pipelines , ideally using ...

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 ...

driven architecture (EDA), and microservices architecture. Familiarity withJava (Spring), Kubernetes, AWS, and service mesh architectures and technologies such as RESTful APIs, API design, Swagger, OpenAPI, and OAuth2. Familiarity and working experience with relational databases (e.g.MySQL, PostgreSQL) and non-relational databases (e.g., MongoDB, Cassandra). 6+ years in customer-facing ...

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 ...

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 ...

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 ...

interfaces in TypeScript and React, respecting a detailed role-based access model Design services and REST APIs in Python (FastAPI/Django) with clear OpenAPI contracts Model data in PostgreSQL: schema design, migrations, indexing and multi-tenant isolation Build event-driven and background processing, plus real-time features over ...

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 ...

designers, and fellow developers in an agile team to solve complex problems and deliver valuable features.Create and maintain robust APIs (using REST, gRPC and OpenAPI) to connect our tools and share data across the organisation.Contribute to our modern development culture using tools like Git and our CI/ ...

part of Scrum teams to modernise legacy services. Required Skills: Java Spring Boot Junit Optional Skills: JPA Kibana Maven Mockito AWS GitLab Helm OpenAPI SQL Shell Scripting Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. ...

work effectively in a Scrum or agile team environment. Experience with any of the following is beneficial: JPA, Kibana, Maven, Mockito, AWS, GitLab, Helm, OpenAPI, SQL, or Shell Scripting. Interested? xehkeey Apply now for immediate consideration ...

technical delivery team. Experience building and designing scalable and performing systems within a microservice architecture Expert on all things API, such as RESTful design, OpenAPI, OAuth2, versioning, etc. Have a strong product mindset and be able to support others to make the right decisions and compromises. Comfortable working ...

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 ...

migration management (Flyway/Liquibase), indexing strategy, and query optimisation.Design, document, and maintain RESTful and/or GraphQL APIs, ensuring consistency, versioning, and thorough OpenAPI/Swagger documentation.Identify, catalogue, and systematically address technical debt in collaboration with the widerYour background and experience will includeGreat communication skills, able to contribute … RESTful API design.PostgreSQL skills: schema design, complex query writing, index optimisation, and migration tooling (Flyway or Liquibase).Experience designing and documenting APIs using OpenAPI/SwaggerProficiency with build tools – Maven or Gradle – and a modern Java development workflow.Understanding of software design principles (SOLID, DRY, Clean Architecture)Familiarity with containerised ...

We are recruiting for a Software Engineer Consultant on behalf of one of the UK's fastest-growing technology consultancies, ranked in the Financial Times FT1000 Europe's Fastest-Growing Companies list in both 2025 ...

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 ...

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 ...

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 ...