OpenAPI Jobs in the UK

1 to 25 of 54 OpenAPI Jobs in the UK

Senior BackEnd Developer - Cyber

United Kingdom
Methods Business and Digital Technology Ltd
such as Django , Flask , FastAPI , Asyncio , Aiohttp , and SQLAlchemy to build scalable web applications. Develop and maintain RESTful APIs , WebSocket , and GraphQL services, ensuring comprehensive documentation with Swagger/OpenAPI . Manage and optimize databases, specifically PostgreSQL , NATS , Redis , and Min.IO . Leverage Microsoft Azure services, including Azure Functions , Azure KeyVault , Azure SQL Database , and Azure DevOps for cloud More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior BackEnd Developer - Cyber (Contract)

Ledbury, Herefordshire, United Kingdom
Methods Business and Digital Technology
such as Django , Flask , FastAPI , Asyncio , Aiohttp , and SQLAlchemy to build scalable web applications. Develop and maintain RESTful APIs , WebSocket , and GraphQL services, ensuring comprehensive documentation with Swagger/OpenAPI . Manage and optimize databases, specifically PostgreSQL , NATS , Redis , and Min.IO . Leverage Microsoft Azure services, including Azure Functions , Azure KeyVault , Azure SQL Database , and Azure DevOps for cloud More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

Luton, Bedfordshire, United Kingdom
Matchtech Group Plc
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 ❯
Employment Type: Permanent
Salary: £78000 - £82000/annum
Posted:

Software Engineer in Test

London Area, United Kingdom
Nscale
Docker. Nice to have : Knowledge of monitoring and observability practices and tools (e.g., Prometheus, Grafana, Datadog). Experience with infrastructure-as-code tools like Terraform or Pulumi. Familiarity with OpenAPI specifications for testing RESTful services. In all we do, our core values guide us: Relentless Innovation At Nscale, we constantly push the boundaries of innovation, embracing creative risks to More ❯
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Software Engineer in Test

City of London, London, United Kingdom
Nscale
Docker. Nice to have : Knowledge of monitoring and observability practices and tools (e.g., Prometheus, Grafana, Datadog). Experience with infrastructure-as-code tools like Terraform or Pulumi. Familiarity with OpenAPI specifications for testing RESTful services. In all we do, our core values guide us: Relentless Innovation At Nscale, we constantly push the boundaries of innovation, embracing creative risks to More ❯
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Software Engineer in Test

slough, south east england, united kingdom
Nscale
Docker. Nice to have : Knowledge of monitoring and observability practices and tools (e.g., Prometheus, Grafana, Datadog). Experience with infrastructure-as-code tools like Terraform or Pulumi. Familiarity with OpenAPI specifications for testing RESTful services. In all we do, our core values guide us: Relentless Innovation At Nscale, we constantly push the boundaries of innovation, embracing creative risks to More ❯
Posted:

Software Engineer in Test

london, south east england, united kingdom
Nscale
Docker. Nice to have : Knowledge of monitoring and observability practices and tools (e.g., Prometheus, Grafana, Datadog). Experience with infrastructure-as-code tools like Terraform or Pulumi. Familiarity with OpenAPI specifications for testing RESTful services. In all we do, our core values guide us: Relentless Innovation At Nscale, we constantly push the boundaries of innovation, embracing creative risks to More ❯
Posted:

Software Engineer in Test

london (city of london), south east england, united kingdom
Nscale
Docker. Nice to have : Knowledge of monitoring and observability practices and tools (e.g., Prometheus, Grafana, Datadog). Experience with infrastructure-as-code tools like Terraform or Pulumi. Familiarity with OpenAPI specifications for testing RESTful services. In all we do, our core values guide us: Relentless Innovation At Nscale, we constantly push the boundaries of innovation, embracing creative risks to More ❯
Posted:

Cloud Application Developer - Azure - Leeds - £50k-£60k

Leeds, West Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
IO Associates
on architecture, performance, and delivery. What You'll Be Working With: Azure services such as Functions, Event Grid, Service Bus, SQL, Blob Storage, and DevOps pipelines API design, documentation (OpenAPI/Swagger), and integration with external partners Hands-on coding in C# .NET or Python (with opportunities to explore Node.js/Java) Building and optimising data pipelines and cloud More ❯
Employment Type: Permanent, Work From Home
Posted:

Software Technical Architect

London, South East, England, United Kingdom
Hybrid / WFH Options
Sanderson
legacy systems and migrating to cloud-native platforms Solid grasp of AWS (API Gateway, Lambda, S3, VPC) Familiarity with Java, DB2, relational databases, and network concepts Desirable experience includes: OpenAPI schemas, Kubernetes, Spring Boot, JBOSS/EJB, Postgres, Python Prior work within UK government departments Ability to mentor and lead technical teams This is a key role in a More ❯
Employment Type: Full-Time
Salary: £75,000 - £95,000 per annum
Posted:

Backend Engineer

City of London, London, United Kingdom
algo1
designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:

Backend Engineer

London Area, United Kingdom
algo1
designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:

Backend Engineer

slough, south east england, united kingdom
algo1
designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:

Backend Engineer

london, south east england, united kingdom
algo1
designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:

Backend Engineer

london (city of london), south east england, united kingdom
algo1
designed for scale & flexibility. Responsibilities: Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:

Integration Developer-Azure-Salesforce-Student records

London, United Kingdom
Hybrid / WFH Options
InterQuest Group (UK) Limited
Experience with monitoring and observability tools like Azure Monitor, Application Insights, and Log Analytics. Awareness of data security, GDPR, and compliance in educational or public sector environments. Exposure to OpenAPI/Swagger, API lifecycle management, and version control best practices. Previous experience working with third-party suppliers in multi-vendor delivery environments. 12-month contract-to start ASAP- Hybrid More ❯
Employment Type: Contract, Work From Home
Rate: £450 per day
Posted:

Software Engineering Team Leader

Milton Keynes, England, United Kingdom
Hybrid / WFH Options
RedTech Recruitment
in: .NET (C#) Unit & integration testing CI/CD pipeline development (GitHub or similar) AWS services (IAM, Lambda, API Gateway) Angular, REST APIs, Web API development SpecFlow (BDD), Postman, OpenAPI MS SQL Server (SQL) & MongoDB (NoSQL) Docker Experience with CQRS and Event Bus architecture is highly desirable Responsibilities for Software Engineering Team Leader Lead, mentor, and support a team More ❯
Posted:

Software Engineering Team Leader

northampton, midlands, united kingdom
Hybrid / WFH Options
RedTech Recruitment
in: .NET (C#) Unit & integration testing CI/CD pipeline development (GitHub or similar) AWS services (IAM, Lambda, API Gateway) Angular, REST APIs, Web API development SpecFlow (BDD), Postman, OpenAPI MS SQL Server (SQL) & MongoDB (NoSQL) Docker Experience with CQRS and Event Bus architecture is highly desirable Responsibilities for Software Engineering Team Leader Lead, mentor, and support a team More ❯
Posted:

Software Engineering Team Leader

high wycombe, south east england, united kingdom
Hybrid / WFH Options
RedTech Recruitment
in: .NET (C#) Unit & integration testing CI/CD pipeline development (GitHub or similar) AWS services (IAM, Lambda, API Gateway) Angular, REST APIs, Web API development SpecFlow (BDD), Postman, OpenAPI MS SQL Server (SQL) & MongoDB (NoSQL) Docker Experience with CQRS and Event Bus architecture is highly desirable Responsibilities for Software Engineering Team Leader Lead, mentor, and support a team More ❯
Posted:

Senior Software Engineer – Backend/API (Live Sport - Fixed Term Contract)

London Area, United Kingdom
Hybrid / WFH Options
HBS
backward compatibility. Optimize for low-latency performance for broadcast graphics and live event tools. Set up CI/CD workflows, tests, monitoring, and logging for reliability. Maintain clear documentation (OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript More ❯
Posted:

Senior Software Engineer – Backend/API (Live Sport - Fixed Term Contract)

City of London, London, United Kingdom
Hybrid / WFH Options
HBS
backward compatibility. Optimize for low-latency performance for broadcast graphics and live event tools. Set up CI/CD workflows, tests, monitoring, and logging for reliability. Maintain clear documentation (OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript More ❯
Posted:

Senior Software Engineer – Backend/API (Live Sport - Fixed Term Contract)

london, south east england, united kingdom
Hybrid / WFH Options
HBS
backward compatibility. Optimize for low-latency performance for broadcast graphics and live event tools. Set up CI/CD workflows, tests, monitoring, and logging for reliability. Maintain clear documentation (OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript More ❯
Posted:

Senior Software Engineer – Backend/API (Live Sport - Fixed Term Contract)

london (city of london), south east england, united kingdom
Hybrid / WFH Options
HBS
backward compatibility. Optimize for low-latency performance for broadcast graphics and live event tools. Set up CI/CD workflows, tests, monitoring, and logging for reliability. Maintain clear documentation (OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript More ❯
Posted:

Senior Software Engineer – Backend/API (Live Sport - Fixed Term Contract)

slough, south east england, united kingdom
Hybrid / WFH Options
HBS
backward compatibility. Optimize for low-latency performance for broadcast graphics and live event tools. Set up CI/CD workflows, tests, monitoring, and logging for reliability. Maintain clear documentation (OpenAPI specs, data dictionaries, usage guides). Work with a collaborative approach to architecture reviews and cross-functional teamwork. 🛫 What makes a successful candidate? Proficient in TypeScript and modern JavaScript More ❯
Posted:

Full Stack Engineer

London Area, United Kingdom
algo1
with in-store content personalisation Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Build and document APIs (OpenAPI/AsyncAPI) for mobile and web clients Model and manage structured and semi-structured data across storage layers Integrate AI-driven personalisation and real-time insights into user flows More ❯
Posted:
OpenAPI
10th Percentile
£34,000
25th Percentile
£50,000
Median
£56,250
75th Percentile
£74,063
90th Percentile
£77,500