1 to 25 of 28 OpenAPI Jobs in the UK

Software Engineer / Java Developer

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
Bournemouth, Dorset, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
DevOps Write automated tests (unit, integration) with JUnit, TestNG, Mockito Secure APIs using OAuth2, JWT, Spring Security Document APIs using Swagger/OpenAPI Monitor applications with ELK, Prometheus, Grafana, Splunk Collaborate using GitHub, JIRA, Confluence, Slack/Teams What We’re Looking For Solid experience in Java backend development ...

Java FullStack

Hiring Organisation
Dns Info Ltd
Location
Bournemouth, Dorset, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
DevOps Automated build, test, and deployment pipelines Testing JUnit, TestNG, Mockito, Selenium, Cypress Unit, integration, and end-to-end testing API Documentation Swagger/OpenAPI Documenting and testing REST APIs Security OAuth2, JWT, Spring Security Implementing authentication and authorization Monitoring & Logging ELK Stack, Prometheus, Grafana, Splunk Application monitoring ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Document Processing & OCR - Experience implementing intelligent document processing solutions using OCR technologies (Tesseract, Azure ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Document Processing & OCR - Experience implementing intelligent document processing solutions using OCR technologies (Tesseract, Azure ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £700 per day
Django REST Framework for exposing AI models and automation services. Experience with API authentication (OAuth, JWT), rate limiting, error handling, API documentation (Swagger/OpenAPI), webhooks, and integrating disparate systems to create seamless automated workflows. Document Processing & OCR - Experience implementing intelligent document processing solutions using OCR technologies (Tesseract, Azure ...

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
Slough, Berkshire, UK
Employment Type
Full-time
knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-have: 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 ...

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
London Area, United Kingdom
knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-have: 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 ...

Senior Full Stack Engineer (Golang/Typescript/Kubernetes)

Hiring Organisation
Safe Intelligence
Location
City of London, London, United Kingdom
knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with GitHub Actions. Nice-to-have: 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 ...

Java Software Engineer

Hiring Organisation
TXP
Location
Boot, Cumbria, UK
Employment Type
Full-time
Agile teams Contribute to CI/CD processes and containerised deployments Skills Java Spring Boot JUnit Kubernetes JPA Kibana Maven Mockito AWS GitLab Helm OpenAPI SQL Shell scripting ...

Backend Engineer

Hiring Organisation
algo1
Location
Slough, Berkshire, UK
Employment Type
Full-time
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 ...

Backend Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
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 ...

Backend Engineer

Hiring Organisation
algo1
Location
London Area, United Kingdom
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 ...

Full Stack Engineer

Hiring Organisation
algo1
Location
London Area, United Kingdom
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 ...

Full Stack Engineer

Hiring Organisation
algo1
Location
City of London, London, United Kingdom
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 ...

Lead Developer

Hiring Organisation
C4S Search Ltd
Location
Wiltshire, England, United Kingdom
Employment Type
Full-Time
Salary
£64,000 - £70,000 per annum
/CD and Infrastructure as Code, using Azure DevOps or GitHub Actions and Bicep or Terraform Strong experience designing and operating RESTful APIs (OpenAPI/Swagger, versioning, throttling, caching) Solid understanding of Azure AD (Entra ID), OAuth2/OIDC, Managed Identity, Key Vault and RBAC Strong experience working within ...

Lead API Solution Architect

Hiring Organisation
Venn Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £1,000 per day
Working knowledge of payments, KYC, lending, trading, or regulatory reporting. Familiarity with Open Banking standards and financial API ecosystems. Strong understanding of REST, JSON, OpenAPI, and event-driven integration. Experience with API platforms such as Azure API Management or Apigee . Knowledge of secure messaging and integration tools (e.g. ...

Cloud Platform Engineering Lead / DevOps Lead

Hiring Organisation
KBC Technologies UK LTD
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Harness, Jenkins, Spinnaker). Expertise in containers & orchestration (Kubernetes) and service mesh technologies (e.g., Istio). Strong understanding of API design & security (REST/OpenAPI, mTLS, authN/Z). Scripting proficiency in Bash, PowerShell, or Python . Cloud Expertise (Depth in one cloud, with willingness to cross-train ...

Python API Developer - Contract - London - Outside IR35

Hiring Organisation
Robson Bale Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 35 Annual
GitLab) AWS Expertise: EKS, API Gateway, EventBridge, IAM. Python: Strong coding for integration services and automation. Security: JWT, TLS, PII processing. API Implementation: REST, OpenAPI specs. Nice-to-Have Experience with OpenSearch (hybrid search, FGAC). Understanding of GenAI (RAG, embeddings, LLMs, AI Safety, Evaluation). Security: ABAC, multi ...

Senior Java Engineer

Hiring Organisation
La Fosse Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 Daily
Focus: Architecture, API design, mentoring, delivery - Shopify experience Core Skills: Backend Development (Micronaut preferred): Java, Gradle, REST & Kafka scaffolding, Health checks API Design & Integration: OpenAPI/AsyncAPI specs, Shopify integration patterns Testing & Quality: Unit tests, code coverage, mocking strategie, Contract testing, test data generation Architecture & Patterns: Domain-driven design ...

Data Analyst

Hiring Organisation
Computappoint
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
technical environment. Strong proficiency in SQL and scripting languages including Python or R. Practical experience with RESTful API design, documentation (e.g. Swagger/OpenAPI), and testing tools (e.g. Postman). Working knowledge of cloud platforms (primarily Azure) and associated data services. Strong understanding of data modelling, ETL workflows ...

Solutions Designer (Leeds)

Hiring Organisation
Fruition Group
Location
London, England, United Kingdom
principlesExcellent communication and stakeholder management skillsBachelor's degree or equivalent experience in Business, Computer Science, or related fieldDesirable: AWS certifications, BCS/IIBA credentials, OpenAPI/Swagger experienceWhat's in it for me?Hybrid working in Leeds with genuine flexibilityWork with cutting-edge AWS technologies and modern architecturesStrong professional ...

Solutions Designer

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
stakeholder management skills Bachelor's degree or equivalent experience in Business, Computer Science, or related field Desirable: AWS certifications, BCS/IIBA credentials, OpenAPI/Swagger experience What's in it for me? Hybrid working in Leeds with genuine flexibility Work with cutting-edge AWS technologies and modern architectures ...

Technical Business Analyst

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
stakeholder management skills Bachelor's degree or equivalent experience in Business, Computer Science, or related field Desirable: AWS certifications, BCS/IIBA credentials, OpenAPI/Swagger experience What's in it for me? Hybrid working in Leeds with genuine flexibility Work with cutting-edge AWS technologies and modern architectures ...

Java Software Engineer

Hiring Organisation
Ascendion
Location
Bournemouth, England, United Kingdom
/GKP preferred) , Docker, Jenkins, GitLab CI. Integrate messaging systems such as Kafka or IBM MQ . Create and maintain API documentation (Swagger/OpenAPI). Implement and maintain security standards using OAuth2, JWT, Spring Security. Apply monitoring and logging practices using ELK Stack, Prometheus, Grafana, Splunk . Ensure … Exposure to cloud-native development and modern technology trends. Tech Stack Exposure (Highly Desired) Backend: Java, Spring Boot, Spring MVC APIs: REST, Swagger/OpenAPI Databases: Oracle, CockroachDB, MongoDB, SQL Cloud & Containers: GKE/GKP, Kubernetes, Docker CI/CD: Jenkins, GitLab CI, Maven, Gradle Testing: JUnit, TestNG, Mockito ...

Technical Architect

Hiring Organisation
RCRTR
Location
Swansea, City and County of Swansea, West Glamorgan, United Kingdom
Employment Type
Contract
Contract Rate
£470 - £500/day
synchronous/asynchronous). Lead the design of distributed microservices, ensuring scalability, resilience, observability, and maintainability. Apply schema-driven design principles (e.g., JSON Schema, OpenAPI, AsyncAPI) to ensure consistent and reusable domain models. Cloud & Platform Engineering (AWS) Select and integrate AWS services (EC2, Lambda, API Gateway, S3, DynamoDB … experience with APIs (REST, event-driven, messaging), microservices, and distributed system design. Strong understanding of schema-driven design , using tools such as JSON Schema, OpenAPI, or AsyncAPI. Solid understanding of cloud security, identity and access management, and operational best practices. Experience working with Infrastructure-as-Code (Terraform, CloudFormation). ...