51 to 75 of 133 OpenAPI Jobs in England

Kong API Gateway Specialist

Hiring Organisation
EUROPEAN SOFTWARE SOLUTIONS (UK) LIMITED
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 per day
hands-on experience with Kong API Gateway (Enterprise or Open Source). Extensive experience in API management and governance. Strong understanding of RESTful APIs, OpenAPI Specifications (Swagger), and API design best practices. Experience implementing OAuth2, OpenID Connect, JWT, MTLS, and API security controls. Experience with API lifecycle management ...

Kong API Gateway Specialist

Hiring Organisation
Infoplus Technologies UK Limited
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £450.00 per day
hands-on experience with Kong API Gateway (Enterprise or Open Source). Extensive experience in API management and governance. Strong understanding of RESTful APIs, OpenAPI Specifications (Swagger), and API design best practices. Experience implementing OAuth2, OpenID Connect, JWT, MTLS, and API security controls. Experience with API lifecycle management ...

Principal Network Platform Lead

Location
Greater London, England, United Kingdom
software platforms in network, cloud, infrastructure, or service provider environments. Strong software engineering skills using Python and Go. Experience building and consuming RESTful APIs, OpenAPI, gRPC, or similar interfaces. Strong knowledge of software engineering practices including Git, code review, automated testing, CI/CD, and release management. Familiarity with ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, UK
Employment Type
Full-time
Provide deep technical expertise in distributed systems, data architecture, and scalable platform design. Design, implement, and maintain Java-based APIs and microservices, including REST, OpenAPI, GraphQL, and gRPC services. Work with modern data technologies including PostgreSQL, MongoDB, and Amazon Redshift. Deliver reliable, performant, and responsive user interfaces aligned … resilient systems. Hands-on experience with Kafka or similar event streaming technologies. Strong understanding of API design and service integration patterns, including REST, OpenAPI, GraphQL, and gRPC. Practical experience with relational and NoSQL data platforms, including PostgreSQL, MongoDB, and Redshift. Frontend development experience using Angular or React, with ...

S/4HANA - Coupa Integration Architect

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £598/day
challenging deadlines; credible, resilient, and comfortable challenging the status quo to drive the best integration outcomes. Technical: API Engineering (REST/OData), specification using OpenAPI/Swagger, Postman-based testing. SAP integration artefacts (IDoc types for vendor, PO, GR, invoice; BAPI/RFC; ALE; OData services). Coupa integration ...

Java Developer

Hiring Organisation
CBSbutler Holdings Limited
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425 per day
expected to grow significantly over the coming years. Key Skills Strong Java development experience Spring/Spring Boot Microservices Git SQL & MongoDB Swagger/OpenAPI Software testing and code quality Application monitoring and troubleshooting Shell scripting Kubernetes - desirable, but not essential This is a great opportunity for a Java ...

Full Stack Software Developer

Location
Greater London, England, United Kingdom
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 ...

Senior Software Engineer

Location
Warmley, England, United Kingdom
Looking For Strong commercial Kotlin development experience Android application development expertise Experience with Git and modern software development workflows Understanding of MVVM, UDF, OpenAPI, APIs, and software design principles Exposure to backend development using Rust, Python, or Go Experience with Docker, CI/CD pipelines, and automated testing Excellent ...

Software Engineer

Location
Warmley, England, United Kingdom
change quickly. Familiarity with backend development using Rust, Python or Go. Understanding of software development principles including MVVM and UDF. Understanding of Web APIs, OpenAPI standards and data structures. Experience with Docker and containerised deployments. Knowledge of DevOps processes, including CI/CD pipelines and automated testing. Strong communication ...

Software Developer (AI)

Location
Nuneaton and Bedworth, England, United Kingdom
Copilot, ChatGPT Enterprise or equivalent AI-assisted development tools. Experience integrating AI or Large Language Models (LLMs) into software applications. Experience designing APIs using OpenAPI/Swagger or similar documentation standards. Experience with Azure DevOps and CI/CD pipelines. Experience with Windows Presentation Foundation (WPF). Experience with ...

Senior AI Engineer - Agentic AI

Location
Greater London, England, United Kingdom
APIs and services (e.g., FastAPI), incorporating async execution, background jobs and containerized deployments Integrate enterprise systems and tools using protocols such as MCP, A2A, OpenAPI, REST and gRPC, ensuring graceful degradation and retries Apply enterprise security and governance practices including RBAC, prompt safety checks, traceability and secrets management Implement ...

Technology Product Business Analyst

Location
Doncaster, England, United Kingdom
causes, and devise effective solutions that deliver business value. Demonstrable technical credibility through the ability to analyse and challenge interface definitions (e.g. Swagger/OpenAPI) and use simple SQL or other data analysis tools to support analysis, data validation, and delivery readiness. Able to maintain an understanding of systems ...

Senior ML Software Engineer

Location
Greater London, England, United Kingdom
deploying ML models as production services, API design, and service integration Strong Python skills and service/backend engineering experience (ideally in FastAPI/OpenAPI, Flask, Go, or Java) Production experience with containerization and orchestration (ideally Kubernetes – EKS/OpenShift), Docker, and IaC (ideally Terraform or Terraform Cloud) Ownership ...

Software Engineering Team Lead

Location
Greater London, England, United Kingdom
first mindset by designing, documenting, and ensuring the quality of robust, efficient HTTP/REST APIs for microservice communication (including using tools like OpenAPI/Swagger). Ensure System Health: Oversee and implement strategies for system scalability, resilience, and high availability, including ownership of monitoring, alerting, and performance optimization. ...

Senior Developer

Location
Greater London, England, United Kingdom
document processing or agentic workflows. Authentication and identity platforms such as Auth0. Geospatial technologies including GeoJSON, HERE, Mapbox or QGIS. Stripe or payment platforms. OpenAPI, SDK generation or developer platform tooling. ISO 27001, Cyber Essentials or secure software development practices. Our tech stack (This isn't a shopping list ...

Kong API Management

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£400.00 - £450.00 per day
cloud-native experience. · API management: Professional experience with API management technologies (e.g., Apigee, Kong, or MuleSoft). · API design: Strong understanding of the OpenAPI Specification (OAS) for RESTful APIs. · API security: Hands-on experience securing APIs at the gateway, including OAuth 2.0, OpenID Connect (OIDC), JWT validation, key-auth ...

SC Senior Integration Architect CGEMJP00358678

Hiring Organisation
Experis
Location
Telford, Shropshire, West Midlands, United Kingdom
Employment Type
Contract
Architect. Skills & Experience Strong experience in enterprise integration architecture and delivery, ideally within large transformation or migration programmes. Proven expertise in API design (REST, OpenAPI), integration patterns, and service-based architectures. Working knowledge of enterprise integration platforms (e.g., SAP Integration Suite, API Management platforms, or equivalent). Experience supporting ...

Test Engineer

Location
Bradford, England, United Kingdom
stack: Salesforce: Sales Cloud, Service Cloud or Financial Services Cloud; Flow, Lightning, security, data models, reports and APIs Integration & APIs: MuleSoft 4, RAML or OpenAPI, DataWeave, REST, SOAP, events and asynchronous messaging Test automation: Copado Robotic Testing, reusable keywords, data‐driven tests, resilient locators and automated evidence Data assurance ...

Principal Software Engineer - Lead Critical Systems & Cloud

Location
Greater London, England, United Kingdom
role requires hands-on experience with React/NextJS, TypeScript, Python and Java REST APIs, plus cloud, containers and CI/CD. Familiarity with OpenAPI, Docker, Kubernetes, Terraform and GitLab is highly valued. #J-18808-Ljbffr ...

WebMethods SME - Active SC

Hiring Organisation
Investigo Change Solutions
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 655 Daily
Experience working with Azure, containerised environments and Kubernetes technologies, including pods, services and ingress. Strong understanding of API-led integration, JMS messaging, Swagger/OpenAPI and integration best practices. Experience integrating with enterprise data sources and platforms, including AWS S3, Oracle, SQL Server, MySQL and Elastic/OpenSearch. Ability ...

Software Engineer

Location
Cheltenham, England, United Kingdom
with backend development languages such as Rust, Python, or Go Solid understanding of software development principles, including MVVM, UDF, web APIs, standards such as OpenAPI, and data structures Experience with Docker for containerisation and deployment Knowledge of DevOps processes, including CI/CD pipelines and automated testing frameworks Strong ...

Senior Integration Architect

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700/day
Skills & Experience Extensive experience in enterprise integration architecture and delivery within large-scale transformation or migration programmes. Strong expertise in API design, REST services, OpenAPI specifications, and modern integration patterns. Experience designing and implementing service-based and distributed architectures. Working knowledge of enterprise integration platforms such as SAP Integration ...

C# .Net Core Developer - Fintech50

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
.Net development (C#).Experience of .Net coreFull stack development skillsExperience of working with REST APIs, using a design first approach and adhering to the OpenAPI specStrong background in database technologies, specifically Oracle and using Entity FrameworkKnowledge of working with event-based systems, any experience of Apache Kafka advantageous. Experience ...

Integration Analyst

Location
London, United Kingdom
work confidently across both business and technical teams. Desirable Skills API-led and event-driven architectures. REST, SOAP, messaging, and file-based integrations. OpenAPI specifications and API management platforms. Cloud migration and application modernisation programmes. Dependency mapping and application portfolio analysis. Jira, Azure DevOps, and Confluence. Experience supporting migration ...

Software Engineer

Hiring Organisation
IBM SIXworks Limited
Location
Cheltenham, Gloucestershire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
collaborative development. Familiarity with backend development languages such as Rust, or Go. Solid understanding of software development principles (MVVM, UDF), Web APIs, standards (e.g. OpenAPI), and data structures. Knowledge of DevOps processes, including CI/CD pipelines and automated testing frameworks. Strong communication and collaboration abilities within a team ...