1 to 25 of 95 OpenAPI Jobs in the UK

Backend Developer (SC Cleared/Eligible)

Hiring Organisation
scrumconnect ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 65,000 Annual
later), with working knowledge of Kotlin/Scala a plus Frameworks: Spring Boot, Spring MVC, Spring Security, Hibernate/JPA APIs: REST, GraphQL, OpenAPI/Swagger Databases: PostgreSQL, Oracle, MongoDB, Elasticsearch Messaging/Streaming: Kafka, RabbitMQ, event-driven architecture Testing: JUnit, Mockito, TDD/BDD, Cucumber Build & CI/ ...

Java Developer (Blockchain)

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
Programming (OOP).Advanced knowledge of Java 17+ features and practical experience with Spring Boot.Skilled in developing RESTful services, including REST design principles, Swagger/OpenAPI, and Spring REST MVC. Proficient in building and delivering enterprise-grade Java applications.Hands-on experience with data structures, algorithms, concurrency, and multi-threading.Database ManagementStrong ...

Developer Enablement, Technical Architect – Release on Demand (SVP)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
tooling, release management platforms, or CI/CD pipeline architecture Familiarity with ServiceNow integrations or ITSM workflow automation Contract‐first API design, such as OpenAPI/Swagger Understanding of containerisation (Docker) and orchestration (Kubernetes) Familiarity with CI/CD tools and automated deployments: Tekton, Harness or equivalent Familiarity with ...

Developer Enablement, Technical Architect – Release on Demand (SVP)

Hiring Organisation
Citigroup
Location
London, United Kingdom
Salary
£ 120 K
with SDLC tooling, release management platforms, or CI/CD pipeline architectureFamiliarity with ServiceNow integrations or ITSM workflow automationContract-first API design, such as OpenAPI/SwaggerUnderstanding of containerisation (Docker) and orchestration (Kubernetes)Familiarity with CI/CD tools and automated deployments: Tekton, Harness or equivalentFamiliarity with automated governance ...

Senior AI Engineer

Hiring Organisation
Aimtech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Central London 23 days per week. Technical Skills C#, ASP.NET Core, Entity Framework Python, FastAPI JavaScript, TypeScript React or Angular REST APIs, Swagger/OpenAPI SQL Server, PostgreSQL, NoSQL and vector databases Azure App Services, Azure Functions, API Management Docker, Kubernetes (AKS) Azure DevOps, Git repositories, CI/ ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
Framework 6/Spring Boot 3.5 Hibernate ORM 6.6+, JPA Apache Tomcat 11, IntelliJ IDEA AI Tooling (Claude, Codex, Gitlab Duo, etc) REST APIs, OpenAPI, Microservices, Event-driven architecture (RabbitMQ) Containers, Docker, AWS, Linux CI/CD with GitLab Pipelines & Jenkins Observability: logging, metrics and monitoring MySQL, Apache Solr ...

Senior Java Developer

Hiring Organisation
CODEVERSE LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£300 - £400 per day
skills. Experience working with highly available and scalable systems. Experience with API resilience, retries, timeouts and idempotency. Strong communication and stakeholder management skills. Desirable OpenAPI/Swagger OAuth2/token-based authentication API gateways Event-driven architecture Data observability Public sector or regulated environment experience Data security and privacy ...

Mid-Level Java Developer

Hiring Organisation
Halliburton
Location
Abingdon, Oxfordshire, United Kingdom
Salary
£ 80 K
Experience with Java and related frameworks (SpringBoot, Eclipse RCP, OData, Hibernate, JPA, REST, etc.) Backend development including REST APIs with Spring Boot, Swagger/OpenAPI specifications, Spring Security, OAuth2/OIDC, JWT. Git-based workflows and Gitlab CI/CD pipelines. Experience working in an Agile development environment (Scrum ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
Framework 6/Spring Boot 3.5 Hibernate ORM 6.6+, JPA Apache Tomcat 11, IntelliJ IDEA AI Tooling (Claude, Codex, GitLab Duo, etc.) REST APIs, OpenAPI, Microservices, Event‐driven architecture (RabbitMQ) Containers, Docker, AWS, Linux CI/CD with GitLab Pipelines & Jenkins Observability: logging, metrics and monitoring MySQL, Apache Solr ...

Senior Software Engineer - Risk & FX

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
factor principles. Cloud‐related tools and services such as Docker, Kubernetes, ElasticSearch, log management systems, and Datadog APM. API specifications conforming to the OpenAPI (Swagger) standard. Large SQL databases (e.g., MySQL) for persistence; familiarity with SQL and complex queries. Infrastructure automation via Terraform and Docker, with knowledge of AWS. ...

Solution Architect

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
desirable but GCP is paramount. You can clearly articulate cloud concepts and guide implementation. and managing RESTful APIs, including API security, versioning, documentation (e.g., OpenAPI/Swagger), and API gateway solutions (e.g., Apigee). Extensive experience designing, developing, governing, and scaling enterprise API ecosystems. Strong expertise in RESTful ...

Senior Software Engineer

Hiring Organisation
Raytheon
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
peers on technical direction within your team Desired Skills and Experience Core Software Engineering JavaScript frameworks (React, NextJS) TypeScript Python Java REST API development OpenAPI/Swagger Cloud & Infrastructure Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Data & Search Technologies Relational Databases ...

Senior/Principal Software Engineer

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
team Desired Skills and Experience: Core Software Engineering across a variety of languages, e.g. JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Principal Software Engineer

Hiring Organisation
Jobleads-UK
Location
Kingswood, England, United Kingdom
team Desired Skills and Experience Core Software Engineering across a variety of languages, e.g. JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Software Engineer

Hiring Organisation
Raytheon
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
within your team Required Skills and Experience Full-stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
technical direction within your team Required experience Core Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or Java REST API development/OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
Salford, Greater Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
technical direction within your team Required experience Core Software Engineering such as: JavaScript frameworks (React, NextJS), TypeScript, Python or Java REST API development/OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Senior Software Developer

Hiring Organisation
8x8
Location
London, United Kingdom
Salary
£ 80 K
skillsExperience working in a global environment, across multiple time zones and geographiesExposure to Salesforce or a similar large CRM systemFamiliarity with API-first development, OpenAPI/Swagger specifications.Experience with integrations and ability to get up to speed with multiple third-party products and their API’s and EnvironmentsStrong foundations ...

Advanced Solutions Architect

Hiring Organisation
Light & Wonder
Location
London, United Kingdom
Salary
£ 80 K
diagrams through to component and sequence-level detail — that can be directly implemented by engineering teamsDesign and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team deliveryArchitect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator platformsProvide ...

Sr. Software Engineer

Hiring Organisation
Jobleads-UK
Location
United Kingdom
tools (Terraform, Docker, Kubernetes, etc.). Experience working with data exports, reporting systems, or data streaming. Experience improving developer experience around APIs (e.g. OpenAPI, Swagger, static site generators). Familiarity with authentication, API gateways, and rate limiting strategies. Experience in compliance standards for APIs and data handling. Experience with ...

Advanced Solutions Architect

Hiring Organisation
Jobleads-UK
Location
Chiswick, England, United Kingdom
through to component and sequence-level detail — that can be directly implemented by engineering teams* Design and evolve RESTful and event-driven APIs using OpenAPI specifications, establishing contracts that support independent team delivery* Architect integrations with third-party systems including payment providers, identity services, regulatory reporting endpoints, and operator ...

Senior Java Developer

Hiring Organisation
DCV Technologies Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£55,000
environment). Software design principles and clean coding practices Performance, scalability, resilience, maintainability, and security considerations API-based architectures and integration layers (e.g., REST, OpenAPI, AsyncAPI) Distributed systems and complex legacy environments Cloud-native application development using Microsoft Azure and/or AWS DevOps practices and toolchains, including ...

Principal Software Engineer

Hiring Organisation
Jobleads-UK
Location
Gloucester, England, United Kingdom
within your team Required Skills and Experience Full-stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
within your team Required Skills and Experience Full-stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...

Principal Software Engineer

Hiring Organisation
Raytheon
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
within your team Required Skills and Experience Full-stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI/Swagger Cloud services (AWS or Azure) Containerisation & Orchestration (Docker, Kubernetes, OpenShift) Infrastructure as Code (Terraform, Ansible) Relational Databases (e.g. PostgreSQL) Elasticsearch/Opensearch ...