25 of 25 Contract Unit Testing Jobs in England

Software Engineer

Hiring Organisation
Click Digital
Location
Guildford, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
£60/hour
latest cloud-based technologies. The engineer will be involved in every stage of the software development life cycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. The role is based at our Newcastle office. Flexible working arrangements are in place for the team. … related technologies, meeting requirements and coding standards. Develop reusable patterns and encourage innovation that will enhance team velocity. Contribute to quality assurance by writing unit and automated tests. Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability ...

SAP Specialist

Hiring Organisation
Quest Global Engineering Limited
Location
East Grinstead, West Sussex, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £24 to £36 per hour based on the skill set match and experience
module with other SAP modules ( FI/CO, SD, PP, WM/EWM, PS ) and external systems ( SAP Ariba, OpenText VIM, legacy systems ). Testing & Quality Assurance: Prepare test plans and scripts, perform unit testing, functional integration testing (FIT), and support user acceptance testing ...

Full Stack Developer

Hiring Organisation
DCV Technologies Limited
Location
Manchester, North West, United Kingdom
Employment Type
Contract
8+ and Spring Boot Build and integrate RESTful APIs and microservices Develop AWS serverless solutions (Lambda, Step Functions, DynamoDB, S3) Apply TDD and automated testing (Jest, Jasmine, Playwright) Work closely with Product Owners and business stakeholders Contribute to CI/CD pipelines and DevOps best practices Ensure high code … experience as a Full Stack Developer/Engineer Angular enterprise applications (Angular 12+) Java, Spring Boot, Spring MVC AWS cloud and serverless architecture TDD, unit testing and end-to-end testing Background in Financial Services, Banking, Wealth or Investment Management Agile/Scrum delivery experience Nice ...

Lead React Developer

Hiring Organisation
Response Informatics
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Contract
ReactHooks, and Context API. Familiarity with RESTful APIs, GraphQL, and microservices architecture. Hands-on experience with Webpack, Babel, and modern build tools. Knowledge of unit testing frameworks (Jest,ReactTesting Library). Exposure to CI/CD pipelines and DevOps practices. Experience in Agile/Scrum methodologies. Knowledge ...

Net Software Engineer

Hiring Organisation
Brio Digital
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500/day
with Microsoft Azure (App Services, Azure Functions, Azure DevOps, etc.) Exposure to healthcare, NHS, or data integration environments Understanding of RESTful APIs , microservices , and unit testing Experience with Git , Azure DevOps Pipelines , and agile delivery practices Strong problem-solving and communication skills Nice-to-Have Knowledge ...

Systems Developer (azure, logic app, .net)

Hiring Organisation
Hays
Location
North West, United Kingdom
Employment Type
Contract
Contract Rate
Up to £450.0 per day + 450
technical development delivery approaches such as Waterfall, SDLC, Agile, Scrum, DevOps, etc. Experience of analysing business requirements, documenting system design, developing objects/code, unit testing and deployment. Good oral and written communications. Desirable Educated to degree level in an IT/STEM related degree discipline or equivalent. ...

React Native developer

Hiring Organisation
Experis
Location
Knutsford, Cheshire, United Kingdom
Employment Type
Contract
Contract Rate
£430/day
disciplined engineering practices, and experience working in Agile environments. The role involves contributing across the full software development lifecycle, from design and development through testing, deployment, and ongoing support, with a strong emphasis on code quality, security, and automation. Key Responsibilities Design, develop, and maintain React Native (Web) applications … RESTful APIs , including documentation using OpenAPI Specification (OAS)/YAML Apply Test-Driven Development (TDD) principles across frontend and backend components Write and maintain unit tests to ensure high levels of code quality and coverage Contribute to and support CI/CD pipelines using GitLab Ensure code quality, maintainability ...

Embedded C / C++ Software Engineer

Hiring Organisation
Certain Advantage
Location
Stevenage, Hertfordshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£70 per hour, Benefits Overtime Rate
board software for the next generation of Missile Systems. This is a hands-on role and will involve architecting, designing, implementing and testing missile subsystem software to required standards and processes. Minimal: (Good) Authoring Specifications through the full lifecycle: planning, design and test documents. Experience of working with formal … DO178C Level B or SIL-4 or equivalent standards. Specification & requirements creation and compliance recording in DOORS. Working knowledge of C/C++ for testing special builds and focussed code reviews. Unit Testing using LDRA, RAPITA or equivalent testing tool. Understanding of Code Coverage and techniques ...

Senior Back-End Developer – Java

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£700 - £800 per day
between front-end and back-end components • Create RESTFul APIs (gRPC) to enable smooth communication between microservices and external systems • Conduct regular code reviews, unit testing, CI and maintain high code quality and reliability • Develop and present high-level design proposals, renderings, and presentations to stakeholders. • Provide input ...

Senior Java Engineer Smart Contract

Hiring Organisation
Adecco
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
TypeScript/Java to enhance user experience. Create RESTful APIs (gRPC) to facilitate smooth communication between microservices and external systems. Conduct regular code reviews, unit testing, and CI to maintain high standards of code quality. Develop and present high-level design proposals to stakeholders, showcasing your creativity ...

Senior Python Software Engineer (Data & Time-Series Focus)

Hiring Organisation
KBC Technologies UK LTD
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
reusable, and well-documented code following best practices Collaborate with cross-functional teams to gather requirements and deliver robust solutions Contribute to code reviews, testing strategies, and continuous improvement of development standards (Optional) Build and enhance interactive dashboards and visualisations using Plotly Dash Required Skills & Experience Core Requirements 9+ … aggregations Working with SQL for data access and analysis Software Engineering Best Practices Version control using Git Writing clean, modular, and reusable code Unit testing (e.g., pytest ) Code documentation and effective use of docstrings Use of linters and formatters to maintain code quality Nice to Have (Not Mandatory ...

Software Engineer

Hiring Organisation
ATA Recruitment
Location
Long Eaton, Derbyshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 400 - 500 Daily
System Architecture & Requirements Engineering Translate customer and business requirements into technical specifications, functional designs, and modular software architectures aligned with Siemens automation standards. Software Testing, Simulation & Commissioning Conduct unit testing, system simulation, virtual commissioning, and on-site commissioning to ensure robust, reliable, and safe system performance. Optimise … Performance Analyse data, identify bottlenecks, and implement software improvements to enhance system efficiency, throughput, and reliability. Customer Support & Troubleshooting Provide technical support during installation, testing, and ramp-up; troubleshoot software-related issues in live warehouse environments. Documentation & Lifecycle Management Create detailed technical documentation, including software design specifications, system architecture ...

Python Developer

Hiring Organisation
Hirexa Solutions UK
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £400 per day
Handling missing values, grouping, merging, pivoting, aggregations, and SQL Software Engineering Best Practices i. Key practices: Version control with Git. Writing modular, reusable code. Unit testing (e.g., with pytest). Code documentation and docstrings. Using linters and formatters Plotly Dash i. Key skills: Customizing with Plotly Graph Objects ...

Senior Salesforce Developer

Hiring Organisation
Atrium Global
Location
Chesterfield, Derbyshire, East Midlands, United Kingdom
Employment Type
Contract
Contract Rate
From £500 to £550 per day
Salesforce +5 years experience AND/OR React Native (Web) +5 years Java +5 years TDD, BDD RESTful API design & build OAS/YAML Unit Testing GitLab CI/CD Pipelines Agile practitioner, SonarQube, Veracode, Jira, Confluence Banking/Financial services background ideally Please feel free to contact ...

Salesforce & React Native Developer

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
Experience Salesforce +5 years experience AND OR React Native (Web) +5 years Java +5 years TDD, BDD RESTful API design & build OAS/YAML Unit Testing GitLab CI/CD Pipelines Agile practitioner, SonarQube, Veracode, Jira, Confluence Banking/Financial services background ideally Please feel free to contact ...

Backend Software Engineer AI

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £550 per day
Tech Stack & Skills Core skills: Strong Python backend development experience (FastAPI or similar frameworks) Cloud-native deployment experience (preferably Google Cloud and Cloud Run) Unit testing experience (pytest or similar frameworks) Familiarity with agile development and CI/CD processes Strong understanding of Git/GitHub workflows ...

Python Engineer

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
Tech Stack & Skills Core skills: Strong Python backend development experience (FastAPI or similar frameworks) Cloud-native deployment experience (preferably Google Cloud and Cloud Run) Unit testing experience (pytest or similar frameworks) Familiarity with agile development and CI/CD processes Strong understanding of Git/GitHub workflows ...

Software Engineer

Hiring Organisation
Carbon60 - Eng&Tech
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£44.85 - £60 per day + PAYE or Umbrella
highly impactful solutions. About the role: You'll be involved in the full software development lifecycle - from designing and building new features to testing, reviewing code, and helping to deliver high-quality, scalable cloud services. You'll work closely with other engineers, testers and product team members, contributing … sprint planning, stand-ups and reviews. Key responsibilities: Develop clean, maintainable, high-quality Java code. Build and maintain cloud-based services. Write unit tests and contribute to automated test coverage. Take part in design and code reviews. Collaborate within an Agile/Scrum environment to meet sprint goals. Document ...

Salesforce Developer

Hiring Organisation
LA International Computer Consultants Ltd
Location
Knutsford, Cheshire, United Kingdom
Employment Type
Contract
Contract Rate
GBP 380 Daily
INSIDE IR35, 2 DAYS ONSITE IN KNUTSFORD* Skills - Salesforce +5 years experience, Java +5 years, TDD, RESTful API design & build, OAS/YAML, Unit Testing, GitLab, CI/CD Pipelines. Desirable - Agile practitioner, SonarQube, Veracode, Jira, Confluence LA International is a HMG approved ICT Recruitment and Project Solutions ...

Java Developer - Equities Algo Trading x2

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 - £950 per day
framework components Work closely with quantitative traders to understand and gather requirements Participate in all phases of the development cycle, including requirement gathering, coding, unit testing, patch reviewing, and providing second-level support Qualifications: Skills: Strong command of core Java APIs (Concurrency, collections) Experience with multithreaded systems, Java ...

Senior Test Engineering Manager (Automation-First)

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£480 - £500 per day + Remote/Outside IR35
confidence. Deliverables Define, develop, and write test strategies aligned to business risk and system architecture Own the end-to-end quality engineering approach, from unit testing through E2E and production validation Introduce and scale modern test automation frameworks across teams Embed automated testing into CI/… engineers and software engineers in automation, test design, and quality engineering Establish quality standards, best practices, and governance without slowing teams down Reduce manual testing, flaky automation, and release risk Partner with engineering leadership to raise overall engineering maturity Influence system and API design to improve testability, resilience ...

Salesforce Engineer

Hiring Organisation
Experis
Location
Knutsford, Cheshire, North West, United Kingdom
Employment Type
Contract
Apply Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) approaches where applicable Produce and maintain OpenAPI specifications using OAS/YAML Write comprehensive unit tests to ensure code quality and reliability Contribute to automated CI/CD pipelines using GitLab Collaborate with cross-functional teams in an Agile … where applicable) Proven experience designing and building RESTful APIs Hands-on experience with OpenAPI Specification (OAS)/YAML Solid understanding of unit testing frameworks Experience using GitLab for version control and CI/CD pipelines Strong understanding of modern software development lifecycles Desirable Skills & Experience Agile practitioner experience ...

Guidewire ClaimCenter Developer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£250 - £340 per day
Partner with Business Analysts and QA teams to translate functional requirements into high-performing technical solutions. Code Quality: Participate in peer code reviews, perform unit testing, and troubleshoot complex technical issues to ensure platform stability. Mentorship: Provide technical guidance to team members and stay current with Guidewire product ...

Infrastructure Design Engineer

Hiring Organisation
Indotronix Avani UK Ltd
Location
South West London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 per day
Mandatory Skills 3+ years of Development Experience 2+ years of Oracle Integration Cloud (OIC) 2 years Oracle Fusion Cloud Experience Hands-on with development & unit testing of integration components & web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Oracle VBCS to develop custom elements ...

Oracle Cloud Integrations Specialist

Hiring Organisation
Summer Browning Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£NEG Excellent Day Rates
service elements Strong expertise with Oracle Fusion Cloud Demonstrated experience connecting Oracle ERP and HCM through Oracle Integration Cloud Expert skills in developing and unit testing integration components and web services (SOAP/REST/JSON Payload) using OIC, Postman, and Curl Solid experience with PaaS Cloud system ...