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

Jakarta EE , MicroProfile , Micronaut , and the Spring ecosystem (Spring Core, MVC, Boot, Data, Streams, Cloud, Security) to build robust microservices architectures . API Development : Design and manage APIs using OpenAPI (YAML), SOAP, RESTful services, and GraphQL . Front-End Integration : Collaborate with front-end teams working with ReactJS, VueJS, Angular, TypeScript, and JavaScript to deliver seamless user experiences. Backend More ❯

of space systems. Read more about the contract you'll be working on here Key Responsibilities • Develop and automate testing for Java microservices. • Build and maintain RESTful APIs utilizing OpenAPI and JSON. • Collaborate within agile teams, adapting to rapidly changing requirements. • Work in an environment that values pragmatic, delivery-focused problem solving and continuous learning. Required qualifications to be … successful in this role • Java Microservices Development: Proven experience in building and testing Java microservices. • RESTful API Development: Recent hands-on experience with developing APIs using OpenAPI and JSON. • Teamwork & Communication: Strong team working and communication skills; the ability to adapt to evolving project requirements. Highly Desirable • Spring/Spring Boot: Experience in developing applications using Spring/Spring More ❯

Deep knowledge of RESTful API design, including best practices for resource modelling, pagination, and error handling. Proven experience with API versioning strategies, backward compatibility, and lifecycle management. Familiarity with OpenAPI/Swagger specifications and API documentation tooling. Solid understanding of API security, including OAuth2, API keys, scopes, JWT, and rate limiting. Strong testing experience, including contract testing, unit, integration More ❯

of CI/CD pipelines, 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 for the supply of temporary More ❯

with Java programming - in enterprise-level back-end development environments. Proficiency with Spring Boot - for building robust and efficient Java-based microservices and REST APIs. Familiarity with Spring Doc (OpenAPI/Swagger) - for generating clear and consumable API documentation. Experience with Azure API Manager - for managing, monitoring, and securing APIs within Azure environments. Swift development experience - beneficial but not More ❯

o SonarQube o ArtiFactory o Jira o Confluence o Encryption o Integration with external applications (3rd party software) o XML and JSON o Use of Ancillary Technologies below: Technology: OpenAPI Progressive Web Apps Service Workers OpenID connect and Oauth protocols Front-end CI pipelines EJB2/EJB3 - for maintenance of support of older applications More ❯

/or Kanban. Experience with XML development: XSD and XSLT (hands-on experience in XSLTs, DTD, XSDs). Experience with HTML DOM manipulation Familiarity with WSDL and Swagger/OpenApi web service definition formats. Experience working with stakeholders and business analysts to gather business requirements to derive functional and non-functional requirements. More ❯

are looking for the following experience: 5+ years' AWS integration experience, including secure deployments on Lambda and Kubernetes (EKS). Expertise in API design and security using API Gateway, OpenAPI, OAuth2, JWT, and service policies. Strong integration background with platforms like SAP, Salesforce, and Oracle ERP. Proficiency in Flask, FastAPI, or similar frameworks, deployed in cloud-native environments. Experience More ❯

are looking for the following experience: 5+ years' AWS integration experience, including secure deployments on Lambda and Kubernetes (EKS). Expertise in API design and security using API Gateway, OpenAPI, OAuth2, JWT, and service policies. Strong integration background with platforms like SAP, Salesforce, and Oracle ERP. Proficiency in Flask, FastAPI, or similar frameworks, deployed in cloud-native environments. Experience More ❯

and maintaining technical documentation and API contracts What we're looking for 1-2 years of hands-on Mulesoft Anypoint experience? Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIs? Familiarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeave? A proactive communicator who enjoys working across technical and non-technical teams Nice-to-haves More ❯

with structured data formats (JSON, XML, CSV) Familiarity with synchronous/asynchronous architecture concepts Desirable: Exposure to programming languages (Java, JavaScript, Python, Go) Working knowledge of APIs (Swagger/OpenAPI 3), shell scripting, and AWS Experience with CloudFormation templates and AWS administration Previous involvement in technical authorship or documentation Security & Inclusivity Due to the nature of our clients, candidates More ❯

with structured data formats (JSON, XML, CSV) Familiarity with synchronous/asynchronous architecture concepts Desirable: Exposure to programming languages (Java, JavaScript, Python, Go) Working knowledge of APIs (Swagger/OpenAPI 3), shell scripting, and AWS Experience with CloudFormation templates and AWS administration Previous involvement in technical authorship or documentation Security & Inclusivity Due to the nature of our clients, candidates More ❯

with structured data formats (JSON, XML, CSV) Familiarity with synchronous/asynchronous architecture concepts Desirable: Exposure to programming languages (Java, JavaScript, Python, Go) Working knowledge of APIs (Swagger/OpenAPI 3), shell scripting, and AWS Experience with CloudFormation templates and AWS administration Previous involvement in technical authorship or documentation Security & Inclusivity Due to the nature of our clients, candidates More ❯

with structured data formats (JSON, XML, CSV) Familiarity with synchronous/asynchronous architecture concepts Desirable: Exposure to programming languages (Java, JavaScript, Python, Go) Working knowledge of APIs (Swagger/OpenAPI 3), shell scripting, and AWS Experience with CloudFormation templates and AWS administration Previous involvement in technical authorship or documentation Security & Inclusivity Due to the nature of our clients, candidates More ❯

of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯

of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯

of software architectures, networking, and data formats (JSON, XML, CSV) Experience with both synchronous and asynchronous systems Confident communicator with stakeholders at all levels Desirable: Knowledge of Swagger/OpenAPI 3 Experience with shell scripting, Terraform, Ansible Familiarity with AWS and infrastructure management Experience in technical authorship/documentation Why join TwinStream? We value deep thinking, real collaboration, and More ❯

technical documentation and API contracts What we're looking for; 1-2 years of hands-on Mulesoft Anypoint experience (or similar!)Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIsFamiliarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeaveA proactive communicator who enjoys working across technical and non-technical teams Nice-to-haves; Experience with More ❯

technical documentation and API contracts What we're looking for; 1-2 years of hands-on Mulesoft Anypoint experience (or similar!) Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIs Familiarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeave A proactive communicator who enjoys working across technical and non-technical teams Nice-to-haves More ❯

technical documentation and API contracts What we're looking for; 1-2 years of hands-on Mulesoft Anypoint experience (or similar!) Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIs Familiarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeave A proactive communicator who enjoys working across technical and non-technical teams Nice-to-haves More ❯

technical documentation and API contracts What we're looking for; 1-2 years of hands-on Mulesoft Anypoint experience (or similar!) Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIs Familiarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeave A proactive communicator who enjoys working across technical and non-technical teams Nice-to-haves More ❯

Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯

Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯

Experience with structured data formats (JSON, XML, CSV) Knowledge of synchronous/asynchronous architectures Desirable: Exposure to Java, JavaScript, Python, or Go Familiarity with API specifications (e.g. Swagger/OpenAPI 3) Experience with shell scripting or AWS administration Understanding of CloudFormation templates Background in technical authorship/documentation Security & Diversity Due to the nature of the work, this role More ❯

Creating and maintaining technical documentation and API contracts What we're looking for; 1-2 years of Integration exposure (or similar!)Strong understanding of API-led connectivity, RAML/OpenAPI, and RESTful APIsFamiliarity with tools like Postman, Git, CloudHub, Runtime Manager and DataWeaveA proactive communicator who enjoys working across technical and non-technical team Nice-to-haves; Experience with More ❯