16 of 16 Contract OpenAPI Jobs in the UK

Lead Software Engineer (Node)

Hiring Organisation
Sanderson Recruitment
Location
South East, United Kingdom
Employment Type
Temporary Contract, On-site
Salary
Up to £525 per day + Inside IR-35
/CD best practices Support deployment, containerisation, and platform optimisation activities Essential Skills & Experience Strong commercial experience with Node.js API development using REST and OpenAPI Web application development using HAPI Database expertise across PostgreSQL , MongoDB , and Redis Unit testing with Jest and Lab Source control using Git Cloud platform ...

Snr Java Developer (API Development)

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £551/day Inside IR35
/CD - Version control and automated build and deployment pipelines. Desirable Skills JPA/Hibernate Kibana Maven/Gradle Mockito AWS GitLab Helm OpenAPI/Swagger SQL Shell scripting AI-Assisted Development The programme is actively embracing modern AI-assisted development practices. Candidates should be comfortable using approved ...

Java Tech Lead

Hiring Organisation
TXP
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
architectural requirements into technical designs, managing technical dependencies and supporting delivery planning. Desirable Skills AWS JPA/Hibernate Maven/Gradle Mockito GitLab Helm OpenAPI/Swagger SQL Kibana Observability and performance monitoring Event-driven architecture/messaging Shell scripting AI-Assisted Development & Leadership Willingness to actively embrace ...

Senior Software Engineer

Hiring Organisation
Raytheon
Location
United Kingdom
Employment Type
Permanent Contract
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 Technical Architect - Custody & Securities Services

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£750 - £850/day
Domain-driven designs Distributed platforms Experience with Kafka, IBM MQ, Solace or similar messaging technologies. Strong API and integration architecture experience, including REST and OpenAPI standards. Exposure to AWS and modern cloud-native architectures. Experience within architecture governance frameworks and technical review boards. Desirable Experience Knowledge of SWIFT Messaging ...

Software Engineer

Hiring Organisation
Raytheon
Location
United Kingdom
Employment Type
Permanent Contract
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
Hackajob Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent Contract, Hybrid
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 ...

Quality Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £430/day
Playwright, Selenium, JUnit, Cucumber/Gherkin Performance & Security Testing: Gatling, OWASP ZAP, SonarQube Accessibility Testing: Axe, WAVE, WCAG Development & Testing Tools: WireMock, GitHub Copilot, OpenAPI Cloud & Infrastructure: AWS, Docker, Kubernetes, Microservices Contract Details Rate: £400-£430 per day (Inside IR35) Duration: 12 months Location: Telford - minimum 2 days ...

Senior Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Cambridge, East Anglia, United Kingdom
Employment Type
Permanent Contract, Hybrid
Salary
£85,000
maintaining board to board and digital interfaces: CAN, SPI, I2C, UART and RS422 Building networked services and interfaces including REST APIs, SNMP agents and OpenAPI specifications Developing and debugging TCP and UDP communication layers, and getting into the weeds on protocol performance Secure communications: authentication, encryption, secure firmware update ...

Front End Engineer / React Developer

Hiring Organisation
Hays Technology
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£550/day £550 per day INSIDE
Component library and design system development using MUI, Storybook and Figma. Runtime validation and contract-first API integration using technologies such as Zod and OpenAPI-generated types. OAuth 2.0/OpenID Connect authentication, authorisation and secure session management. CI/CD, dependency management and frontend security practices. Experience within ...

Automation Engineer

Hiring Organisation
Ixceed Solutions Ltd
Location
Telford, West Midlands, United Kingdom
Employment Type
Permanent Contract, Hybrid
Role: Automation Engineer Job Type: Full-Time/Permanent Location: Telford, UK – Hybrid (2 days onsite per week) Job Description: We are looking for an experienced Automation Engineer with strong hands-on automation testing experience ...

Integration Architect

Hiring Organisation
Hackajob Ltd
Location
South West London, South East, United Kingdom
Employment Type
Permanent Contract, Hybrid
interface/API specifications . Design and govern enterprise APIs using Azure API Management (APIM) . Define API design and governance standards, including OpenAPI/Swagger, versioning, schema management and API lifecycle management . Design APIM Products, subscriptions, throttling and consumption models for internal and external consumers. Establish reusable … Azure Service Bus | Event Grid | Logic Apps | Azure Functions | OAuth2 | OIDC | JWT | Entra ID | Key Vault | Terraform | Bicep | Azure DevOps | CI/CD | APIOps | OpenAPI/Swagger | Azure Monitor | Application Insights Additional Information Why our client? We believe in providing our employees with a comprehensive benefits package that prioritises ...

Senior API Platform Engineer

Hiring Organisation
Simplex Services (UK) Ltd
Location
London, United Kingdom
Employment Type
Permanent Contract, Full Time, On-site
Salary
From £60 to £70 per hour
financial services industry and their IT systems Practical cloud native experience Professional experience in API management technology e.g APIGEE, Kong, Mulesoft Strong understand of OpenAPI Specification (OAS) for RESTful APIs DevOps (CICD, Kubernetes, Terraform) Required qualifications, capabilities, and skills · Programming languages: Advanced proficiency in one or more programming languages … Cloud-native operations: Practical, hands-on cloud-native experience. · Envoy: Professional experience with Envoy Proxy or Envoy Gateway. · API design: Strong understanding of the OpenAPI Specification (OAS) for RESTful APIs. · Authentication & authorization: Hands-on experience implementing authentication and authorization at the gateway, including OAuth 2.0, OpenID Connect (OIDC ...

Java Engineer

Hiring Organisation
Experis
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £475/day
Java Engineer Rate: £450.00 - £475.00 (inside IR35) Location: Telford (2 days per week onsite) Clearance: Active SC Clearance or SC Eligible The Opportunity We're looking for a Java Engineer to join a large-scale ...

Lead Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Bristol, South West, United Kingdom
Employment Type
Permanent Contract, Remote
Salary
£94,999
Our client is a public sector technology consultancy. About our client Our aim at our client is to use human-centred technology to improve our society. We believe putting people at the heart of designing ...

Automation Test Engineer

Hiring Organisation
ISR RECRUITMENT LIMITED
Location
Nationwide, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £425/day (Outside IR35)
Automation Test Engineer 3-month contract (initially) Remote Working Outside-IR35 Market Rates (c£400 to £425 per day) The Opportunity: We are seeking an automation-focused End-to-End Test Engineer to support a ...