OpenAPI Job Vacancies

201 to 224 of 224 OpenAPI Jobs

Senior Ruby Engineer

Luton, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a More ❯
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Senior Ruby Engineer

Leeds, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a More ❯
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Senior Ruby Engineer

Sheffield, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
for improving system reliability, auditing, and financial reconciliation accuracy. Open Standards: Support our commitment to observability and open standards. Contribute to initiatives around OpenTelemetry, OpenAPI, and other tools that improve transparency and traceability across services. About you At least 5 years of professional experience in software development, with a More ❯
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Engineering Manager - OSS and Tools

London, United Kingdom
Barclays
analytics and AI ML based RCA and Remediation. Strong knowledge and demonstrable hands-on experience with Open-source and standards like eTOM, TMF SID, OpenAPI, ETSI NFV, etc. Other highly valued skills include: Hands on Expertise in Designing scalable architecture systems and ability to craft frameworks to deploy the More ❯
Employment Type: Permanent
Salary: GBP Annual
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Backend Developer (Kotlin)

City of London, London, United Kingdom
Synthesized
a focus on clean architecture and resilience. Model data in PostgreSQL , own schema migrations with Liquibase , and access data through jOOQ . Treat the OpenAPI contract as the single source of truth. Co-author, review and enforce it across teams, automate server/client generation. Practice shift-left testing … similar tools for type-safe data access. Comfortable writing tests (JUnit, Testcontainers, MockMVC) and using code-coverage metrics to guide improvements. Hands-on with OpenAPI/Protobuf and code-generation workflows; you value strongly typed contracts between services and UI. Familiar with GitHub and GitHub Actions (or similar) for More ❯
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Backend Developer (Kotlin)

London Area, United Kingdom
Synthesized
a focus on clean architecture and resilience. Model data in PostgreSQL , own schema migrations with Liquibase , and access data through jOOQ . Treat the OpenAPI contract as the single source of truth. Co-author, review and enforce it across teams, automate server/client generation. Practice shift-left testing … similar tools for type-safe data access. Comfortable writing tests (JUnit, Testcontainers, MockMVC) and using code-coverage metrics to guide improvements. Hands-on with OpenAPI/Protobuf and code-generation workflows; you value strongly typed contracts between services and UI. Familiar with GitHub and GitHub Actions (or similar) for More ❯
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Backend Developer (Kotlin)

Slough, England, United Kingdom
JR United Kingdom
a focus on clean architecture and resilience. Model data in PostgreSQL , own schema migrations with Liquibase , and access data through jOOQ . Treat the OpenAPI contract as the single source of truth. Co-author, review and enforce it across teams, automate server/client generation. Practice shift-left testing … similar tools for type-safe data access. Comfortable writing tests (JUnit, Testcontainers, MockMVC) and using code-coverage metrics to guide improvements. Hands-on with OpenAPI/Protobuf and code-generation workflows; you value strongly typed contracts between services and UI. Familiar with GitHub and GitHub Actions (or similar) for More ❯
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Medior Full Stack Web Developer

Hasselt, Limburg, Belgium
Mr. Watts
implement visually beautiful and performant interfaces based on provided wireframes and designs, according to modern standards. You build APIs conforming to specifications such as OpenAPI or GraphQL. Likewise, consuming these APIs is no problem for you. You follow architectural designs and input laid out by our software architect, filling … injection and service containers. Understanding of OOP design patterns and design principles. Understanding of how to build backwards compatible APIs conforming to standards like OpenAPI and GraphQL. Knowledge of common relational databases and SQL; specifically PostgreSQL. General: Good knowledge of the GIT version control system and the workflows it More ❯
Employment Type: Permanent
Salary: EUR Annual
Posted:

Senior Software Architect with Security Clearance

Arlington, Virginia, United States
Umbra
Umbra builds next-generation space systems that observe the Earth in unprecedented fidelity. Our mission is to deliver global omniscience. To stay ahead of climate change, geopolitical risk, and other major crises and issues, we need a global understanding of More ❯
Employment Type: Permanent
Salary: USD 220,000 Annual
Posted:

Senior Software Engineer

London, England, United Kingdom
Made Tech Limited
Made Tech is on a mission to use technology to improve society - for everyone. We help public sector organisations transform, deliver and manage world-class digital products and cloud services. We work with the UK government to modernise legacy technology More ❯
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Senior Software Engineer

Burnley, England, United Kingdom
Made Tech
hackajob is collaborating with Made Tech to connect them with exceptional tech professionals for this role. Made Tech is on a mission to use technology to improve society - for everyone. We help public sector organisations transform, deliver and manage world More ❯
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Lead Software Engineer - Cloud AWS Java

Oxford, England, United Kingdom
Hybrid / WFH Options
Randstad Staffing
orchestration, and event-driven architecture solutions within cloud infrastructure. This role demands expertise in cloud architecture (particularly AWS), API design and development, AsyncAPI and OpenAPI specifications, and experience with event-driven architectures and frameworks. You will be responsible for building scalable, efficient solutions that enable seamless communication across systems … and development: Lead the design, implementation, and management of robust APIs to support various business and operational needs, ensuring consistency and scalability. AsyncAPI and OpenAPI: Design and develop APIs following AsyncAPI and OpenAPI specifications to ensure seamless communication and integration between services. Collaborate with DevOps teams to define More ❯
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Full Stack Engineer

How Wood, England, United Kingdom
Hybrid / WFH Options
IOTA
Job Intro We are seeking a proactive and highly skilled engineer to join our team. As a senior engineer, you will be involved in designing, coding, testing, and delivering new products and services, working closely with the wider TWIN technical More ❯
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MuleSoft Architect

Plymouth, England, United Kingdom
HL Solutions LLC
Boot, Node.js, etc.). Implement token-based authentication, authorization, and enforce API gateway policies. Establish best practices for API lifecycle management using Swagger/OpenAPI specifications. Design and manage sandbox environments with mock/test data for parallel system testing. Solve integration edge cases and performance bottlenecks proactively. Implement … Design Center, Runtime Manager, API Manager). Hands-on experience with API Gateway , OAuth2.0 , JWT , Client Credentials Flow , etc. Deep knowledge of RESTful APIs , OpenAPI/Swagger , and API mocking tools. Experience integrating APIs from multiple backends (.NET Core, Java Spring Boot, NodeJS, Python, etc.). Proficient in enterprise More ❯
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Software Developer in the AI Services Team (gn) - Hybrid

Langenfeld (Rheinland), Nordrhein-Westfalen, Germany
Hybrid / WFH Options
ControlExpert GmbH
and C# (Entity Framework Core, ASP.NET Core), AWS ML services, DevOps (GitLab CI/CD, Docker, Kubernetes, NVIDIA Triton), and backend development (REST API, OpenAPI, Swagger) • Language: Fluent in written and spoken English • Nice-to-have: Experience in LLM frameworks such as Haystack/LangChain, PyTorch, and proficiency in … improvement of development processes and methods Technologies: AI API ASP.NET AWS Backend C# CI/CD DevOps Docker FastAPI GitLab Kubernetes LLM Machine Learning OpenAPI PyTorch Python REST SQL Swagger numpy opencv Cloud More: As an established market leader, ControlExpert has been processing over 18 million vehicle claims per More ❯
Employment Type: Permanent
Salary: EUR 55,000 - 85,000 Annual
Posted:

Technical Business Analyst

London, England, United Kingdom
Hybrid / WFH Options
Natobotics
Business Analyst with strong experience in capturing business and technical requirements and translating them into detailed API specifications, particularly using JSON and Swagger/OpenAPI . The ideal candidate will act as a bridge between business stakeholders and development teams, ensuring clear, accurate, and testable interfaces for service integration … owners, developers, QA, and solution architects) to gather and document detailed functional and non-functional requirements. Create and manage API documentation using Swagger/OpenAPI standards. Design and review JSON-based interfaces for RESTful APIs and system integrations. Facilitate workshops and requirement-gathering sessions with technical and non-technical … as a Technical Business Analyst , Systems Analyst, or API Business Analyst in Agile environments. Strong knowledge of RESTful API standards , JSON , and Swagger/OpenAPI specifications. Ability to write and review YAML or JSON-based Swagger files manually or using tools (e.g., SwaggerHub, Postman, Stoplight). Familiarity with API More ❯
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Technical Business Analyst

London, United Kingdom
Hybrid / WFH Options
N Consulting Limited
Business Analyst with strong experience in capturing business and technical requirements and translating them into detailed API specifications, particularly using JSON and Swagger/OpenAPI . The ideal candidate will act as a bridge between business stakeholders and development teams, ensuring clear, accurate, and testable interfaces for service integration … owners, developers, QA, and solution architects) to gather and document detailed functional and non-functional requirements. Create and manage API documentation using Swagger/OpenAPI standards. Design and review JSON-based interfaces for RESTful APIs and system integrations. Facilitate workshops and requirement-gathering sessions with technical and non-technical … as a Technical Business Analyst , Systems Analyst, or API Business Analyst in Agile environments. Strong knowledge of RESTful API standards , JSON , and Swagger/OpenAPI specifications. Ability to write and review YAML or JSON-based Swagger files manually or using tools (e.g., SwaggerHub, Postman, Stoplight). Familiarity with API More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer London

London, United Kingdom
Conduktor Inc
with our Product team to ensure our customer experience is flawless Working with our front-end teams (React/Typescript) using Rest, GraphQL and OpenAPI to ensure seamless integration with our UX Working with our Customer Success team to ensure our systems are operationally robust for the most mission … mindset, collaborating closely with Product teams to deliver seamless user experiences You have experience working with frontend integration technologies such as REST, GraphQL, and OpenAPI, ensuring smooth collaboration with front-end teams (React/TypeScript) You're familiar with enterprise-scale operational requirements, working alongside Customer Success teams to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

London, United Kingdom
Conduktor
with our Product team to ensure our customer experience is flawless Working with our front-end teams (React/Typescript) using Rest, GraphQL and OpenAPI to ensure seamless integration with our UX Working with our Customer Success team to ensure our systems are operationally robust for the most mission … mindset, collaborating closely with Product teams to deliver seamless user experiences You have experience working with frontend integration technologies such as REST, GraphQL, and OpenAPI, ensuring smooth collaboration with front-end teams (React/TypeScript) You're familiar with enterprise-scale operational requirements, working alongside Customer Success teams to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Architect

City of London, London, United Kingdom
Hybrid / WFH Options
Lawes Recruitment (UK) Limited
Insights, Log Analytics, and Redis services Provide expertise on the best Azure hosting models (Functions, Container Apps, App Services) Establish governance for Swagger/OpenAPI-first API lifecycle management Develop and maintain Infrastructure-as-Code templates (ARM/Bicep/Terraform) Create onboarding documentation and runbooks to support a … Azure Functions, API Management, and secure deployment practices Proven experience in setting up and managing secure, multi-environment DevOps tooling Expertise in Swagger/OpenAPI-first design and CI/CD pipeline integration Experience supporting or enabling outsourced development teams Familiarity with the insurance, fintech, or other regulated sectors More ❯
Employment Type: Permanent, Work From Home
Posted:

Senior Technical Writer

London, England, United Kingdom
Hybrid / WFH Options
Checkout.com
Docs-as-Code process with confidence in GitHub and the use of at least one static site generator. You're also familiar with the OpenAPI (OAS) specification and its application in technical documentation development. You have experience producing clear, human-centered documentation in American English You are experienced in … to medium-sized projects Experience planning documentation journeys that span different content types (User Documentation, API Reference, and Support site articles) Knowledge of the OpenAPI (OAS) specification Ability to read code in at least one programming language Experience in using analytics and user research to inform your decisions Experience More ❯
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Lead Cloud Engineer

London, England, United Kingdom
ZipRecruiter
of £650 - £700 p/d. Hybrid role in London office. Key Responsibilities: Lead the implementation of Azure cloud platform Develop robust APIs using OpenAPI, JSON, and Azure Integration Services (Logic Apps, API Management, Service Bus) Write clean, maintainable code in C#/.NET for cloud applications and integrations … Azure, particularly Azure integration services Proven track record of leading Azure solution implementations in enterprise environments Strong expertise in API design and integration, including OpenAPI/Swagger, JSON, and RESTful services Solid experience with C#/.NET for backend development and integration Deep understanding of Infrastructure as Code using More ❯
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Lead Cloud Engineer

City of London, England, United Kingdom
JR United Kingdom
of £650 - £700 p/d. Hybrid role in London office. Key Responsibilities: Lead the implementation of Azure cloud platform Develop robust APIs using OpenAPI, JSON, and Azure Integration Services (Logic Apps, API Management, Service Bus) Write clean, maintainable code in C#/.NET for cloud-native applications and … Azure, particularly Azure integration services Proven track record of leading Azure solution implementations in enterprise environments Strong expertise in API design and integration, including OpenAPI/Swagger, JSON, and RESTful services Solid experience with C#/.NET for backend development and integration Deep understanding of Infrastructure as Code using More ❯
Posted:

Lead Cloud Engineer

City of London, England, United Kingdom
Pioneer Search
of £650 - £700 p/d. Hybrid role in London office. Key Responsibilities: Lead the implementation of Azure cloud platform Develop robust APIs using OpenAPI, JSON, and Azure Integration Services (Logic Apps, API Management, Service Bus). Write clean, maintainable code in C#/.NET for cloud-native applications … Azure, particularly Azure integration services Proven track record of leading Azure solution implementations in enterprise environments. Strong expertise in API design and integration, including OpenAPI/Swagger, JSON, and RESTful services. Solid experience with C#/.NET for backend development and integration. Deep understanding of Infrastructure as Code using More ❯
Posted:
OpenAPI
25th Percentile
£50,000
Median
£55,000
75th Percentile
£60,000
90th Percentile
£81,250