1 to 25 of 151 Unit Testing Jobs in the UK

Senior Software Development Engineer in Test

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
platforms and ways of working, we’re also re‐introducing what "good" looks like for quality at Holland & Barrett. We’re moving from traditional testing approaches towards a modern, engineering‐led quality strategy: unit testing, contract testing, component testing, integration testing, E2E flows, synthetics … Design, build, and maintain scalable automation frameworks that are easy for engineers to use and extend. Partner with teams to introduce modern microservices testing approaches across unit, contract, component, integration and E2E layers. Lead the shift toward engineers owning their tests by providing guidance, examples, and hands ...

Senior Software Development Engineer in Test

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
strong customer focus in everything we do. We love the cloud, prefer building the right solutions over buying generic ones, and embrace automation and testing in all things software, infrastructure, and data. About the Role We’re at an exciting moment in our engineering journey. As we modernise … platforms and ways of working, we’re also re‐introducing what “good” looks like for quality at Holland & Barrett. We’re moving from traditional testing approaches towards a modern, engineering‐led quality strategy: unit testing, contract testing, component testing, integration testing, E2E flows, synthetics ...

Lead Software Test Engineer

Hiring Organisation
Nicholas Associates
Location
Warwick, Warwickshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
excellent opportunity for a talented Lead Software Test Engineer, to join an award-winning & innovative tech client in Warwick. You will be responsible for testing mobile apps and embedded software, for our client's unique range of products. You will take a lead in our software test team, guiding … team and be part of our strong development department which includes electronics hardware, embedded software and mobile & web apps. In addition to manual product testing, you will be involved in other elements of testing such as backend services which support the application, unit testing and cloud ...

Senior Software Engineer (AI-Native Development)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
evolving codebase with technical debt and business‐critical logic Set up and use multiple AI agents or agentic workflows to accelerate requirements analysis, implementation, testing, refactoring, unit testing, and documentation Review and strengthen AI‐generated output rather than relying on it blindly Write maintainable, production‐grade code … generated outputs through prompt iteration and workflow design Experience in both creating new systems and improving established ones Strong understanding of APIs, databases, testing, debugging, and system design Experience setting up and operating multiple AI agents or agentic workflows across requirements analysis, code generation, refactoring, code review, testing ...

Software Engineer III (Python & C#)

Hiring Organisation
LexisNexis Legal & Professional®
Location
Worcestershire, United Kingdom
Employment Type
Full Time
Software Engineer III works independently on individual pieces of work and solves moderately complex technical problems, including designing program flow, implementing effective code, performing unit testing, resolving defects, and contributing to system component design and specifications. Key Responsibilities: Create specifications for and develop and maintain a semantic search … API. Successfully implement development processes, coding best practices, secure coding standards, unit testing, code coverage expectations, and code reviews. Maintain an internal data curation tool. Use agentic development tools responsibly to accelerate development while maintaining code quality, security, correctness, and maintainability. Requirements: Proficiency in development languages, including ...

UAT Analyst

Hiring Organisation
Contechs Consulting
Location
Solihull, West Midlands, West Midlands (County), United Kingdom
Employment Type
Contract
Contract Rate
£37.04/hour
development projects. Communicate, prioritize and track test execution, defects and issues appropriately and recommend corrective action whenever required. Facilitate functional testing, regression testing, UI testing, and unit testing for all new features in cross browser environments including mobile devices. Provide leadership and facilitate problem resolution … development team and Database Administrators to identify system deficiencies and escalate to appropriate teams for timely resolution of issues. Deliver quality products by thoroughly testing throughout all phases of development life cycle (Regression, Functional, Integration, End to End testing) using a combination of testing methods. Level ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
platforms supporting key products including Connected Risk, World Check, and products in the Risk Managed Services space. Responsible for the analysis, definition, design, construction, testing, installation, modification, and maintenance of properly engineered information systems, containing software as the major component to meet agreed business needs.**Main Responsibilities/Accountabilities … planning sessions with team members to analyse requirements and provide design options, work breakdown and estimates of work.• Demonstrate a focus on quality, through unit testing, integration testing and peer reviews, ensuring software meets requirements.• Thoroughly document, review, and maintain all required technical reference material to ensure ...

Python Developer

Hiring Organisation
Sanderson
Location
London Area, United Kingdom
with advanced understanding of Global Interpreter Lock (GIL) and Threading Implement clean, type-safe code using Python type hinting, PEP-compliant standards, and robust unit testing Build performant, scalable APIs to support modeling and algorithmic decision-making tools Architect and implement efficient event-driven workflows, asynchronous tasks … grasp of type hinting, generators, iterators, and Pythonic loop constructs Proven ability to design RESTful APIs for high-throughput, low-latency systems Experience with unit testing, integration testing, and test automation frameworks Solid understanding of PostgreSQL, Redis, and message queues (e.g., Celery, RabbitMQ) Desirable: Exposure to containerized ...

Full Stack Developer

Hiring Organisation
Proactive Appointments
Location
Bristol, Somerset, United Kingdom
Employment Type
Permanent
Salary
GBP 55,000 - 65,000 Annual
collaborate closely with cross-functional teams to deliver high-quality, scalable solutions. You'll also create automated tests using tools such as Postman and unit testing frameworks, ensuring reliability across deployments. There's plenty of scope to introduce modern practices, frameworks, and tools to improve development processes. This … experience (React) Solid Back End development skills (Java) Good understanding of RESTful APIs and microservices architecture Experience with SQL-based databases Familiarity with API testing (Postman) and unit testing Experience integrating third-party APIs and web services Knowledge of design/prototyping tools (eg Figma) Strong analytical ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
Front‐End: Angular, TypeScript, HTML5, CSS, Angular NativeScript Back‐End: C#, Entity Framework Core, LINQ Data: SQL Server, T‐SQL DevOps & Infrastructure: Bicep templates Testing: Unit testing frameworks Key Responsibilities Design Contributing to development planning and technical design Designing scalable and maintainable software solutions Validating and refining … models Managing build and deployment processes using Azure DevOps Maintaining high coding standards, performance, and security Supporting the evolution of RiskProof and related systems Testing Writing and maintaining unit tests Reviewing and contributing to test plans Occasionally executing testing activities where required Ensuring high levels of reliability ...

Senior Software Engineer — Pricing AI (Manchester)

Hiring Organisation
Jobleads-UK
Location
Manchester, England, United Kingdom
building and deploying machine learning features and data-driven applications. You will work on end-to-end solutions – from writing robust code and unit tests to developing APIs and integrating machine learning models into our product ecosystem. This role requires a mix of software engineering excellence … data services; ensure APIs are secure, well‐documented, and perform at scale. Write and maintain comprehensive tests for your code; use PyTest for unit testing and Selenium (where appropriate) for end‐to‐end or UI testing to automate quality assurance; ensure that new features have proper test ...

Front End Developer

Hiring Organisation
IT Graduate Recruitment
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 per annum
Single Page Applications, SPA, Performance Optimisation, Browser Compatibility, Debugging, Chrome DevTools, Clean Code, Maintainable Code, Scalable Systems, Design Systems, Wireframes, Prototyping, Figma, Adobe XD, Testing, Unit Testing, End-to-End Testing, Cypress, Jest, Linux, Unix, AWS, Cloud Services, Microservices, Serverless Architecture, Enterprise Software, B2B Platforms, Agile ...

Java Software Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Spring Boot. · Develop and maintain scalable, high-performance microservices. · Integrate microservices with various databases, APIs, and third-party services. · Ensure high-quality code through unit testing, code reviews, and continuous integration. · Identify and resolve performance issues, bugs, and other technical challenges. · Create and maintain technical documentation for Java … with SQL databases e.g., MySQL, PostgreSQL, Oracle · DevOps: Familiarity with DevOps tools and practices, including Jenkins, Azure DevOps, Git and CI/CD pipelines. · Unit Testing: Expertise in writing unit tests using frameworks like JUnit and Mockito. · Version Control: Proficiency with version control systems, particularly Git. ...

Java Software Developer

Hiring Organisation
Persistent Systems
Location
Glasgow, Scotland, United Kingdom
Experienced with Build tools like Gradle and maven and Vulnerability tools like Prisma and SonarQube. Creation and execution automated test scripts if required, leveraging testing frameworks and tools to facilitate early detection of defects and quality issues. Hands‐on experience with Apache Kafka, encompassing design, development, integration, and debugging. … patterns. Experience with version control (Git) and CI/CD pipelines and DevOps Practices. Good Debugging Skills and adhering to coding standards. Understanding of testing framework JUnit, Mockito. Willingness to support post deployment process. Experience working with any cloud AWS, Azure, GCP. Desirable Skills (Good to Have) Experience with ...

Senior Quantitative Developer

Hiring Organisation
Centrica - CHP
Location
Hayes, London, United Kingdom
Employment Type
Permanent
quality increments to the team's model library - working both individually and collaboratively. Providing leadership in areas such as object modelling & interface design, automated testing & refactoring and performance optimisation. Provide support to Trading & Origination on model usage and behaviour. Leverage the teams cross-asset expertise to connect business locations … mathematics or other quantitative subject. Solid experience of code development in Python, including: Experience developing in an Agile environment Use of math/stats & testing libraries, as well as modern build tools. Ability to refactor code and work effectively with legacy systems. Knowledge of Object Orientation, Software Architecture ...

Senior Quantitative Developer

Hiring Organisation
Centrica - CHP
Location
Denbigh, Denbighshire, Wales, United Kingdom
Employment Type
Permanent
quality increments to the team's model library - working both individually and collaboratively. Providing leadership in areas such as object modelling & interface design, automated testing & refactoring and performance optimisation. Provide support to Trading & Origination on model usage and behaviour. Leverage the teams cross-asset expertise to connect business locations … mathematics or other quantitative subject. Solid experience of code development in Python, including: Experience developing in an Agile environment Use of math/stats & testing libraries, as well as modern build tools. Ability to refactor code and work effectively with legacy systems. Knowledge of Object Orientation, Software Architecture ...

Senior Quantitative Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
quality increments to the team’s model library - working both individually and collaboratively.* Providing leadership in areas such as object modelling & interface design, automated testing & refactoring and performance optimisation.* Provide support to Trading & Origination on model usage and behaviour.* Leverage the teams cross-asset expertise to connect business locations … other quantitative subject.* Solid experience of code development in Python, including: + Experience developing in an Agile environment + Use of math/stats & testing libraries, as well as modern build tools. + Ability to refactor code and work effectively with legacy systems.* Knowledge of Object Orientation, Software Architecture ...

Java Developers x 2 - SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Newcastle upon Tyne, Tyne and Wear, Tyne & Wear, United Kingdom
Employment Type
Contract
Contract Rate
£60 - £70/hour
using the latest cloud-based technologies. The engineer will be involved in every stage of the software development lifecycle, 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 … 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 ...

Sitecore Technical Lead

Hiring Organisation
ThriveIT Systems
Location
City, Sheffield, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
frameworks React Nextjs preferred Ability to review frontend code critically and guide frontend engineers effectively DevOps Tooling Gitbased workflows branching strategies and agile culture Testing Quality Familiarity with unit testing integration testing and automation testing approaches Ability to instil QA discipline within a development team ...

Sitecore Technical Lead

Hiring Organisation
ThriveIT Systems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Permanent, Contract
frameworks React Nextjs preferred Ability to review frontend code critically and guide frontend engineers effectively DevOps Tooling Gitbased workflows branching strategies and agile culture Testing Quality Familiarity with unit testing integration testing and automation testing approaches Ability to instil QA discipline within a development team ...

Java Developer - SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Guildford, Surrey, Fairlands, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £520/day
software, using the latest cloud-based technologies. You will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java and 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 and maintainability guidelines ...

Java Developer - SC Cleared

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Newcastle upon Tyne, Tyne and Wear, Kenton, Tyne & Wear, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £520/day
software, using the latest cloud-based technologies. You will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. Responsibilities Develop high-quality, readable, scalable and easily maintained code, using Java and 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 and maintainability guidelines ...

Software Engineer

Hiring Organisation
Belcan
Location
Newcastle upon Tyne, Tyne and Wear, Tyne & Wear, United Kingdom
Employment Type
Contract
Contract Rate
£60/hour
using the latest cloud-based technologies. The engineer will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. The role is based at the clients Newcastle or Guildford office. Flexible working arrangements … 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 ...

Software Engineer

Hiring Organisation
Line Up Aviation
Location
Guildford, Surrey, United Kingdom
Employment Type
Contract
Contract Rate
£60/hour
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 … commitment to act with integrity, as the foundation for the Company's success, reputation and sustainable growth. Requirements : Essential Java Cloud Services development Unit testing Desirable DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube Red Hat Openshift container platform or Kubernetes Quarkus Framework Front end development using ...

Software Engineer

Hiring Organisation
Line Up Aviation
Location
Newcastle upon Tyne, Tyne and Wear, Tyne & Wear, United Kingdom
Employment Type
Contract
Contract Rate
£60/hour
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 … commitment to act with integrity, as the foundation for the Company's success, reputation and sustainable growth. Requirements : Essential Java Cloud Services development Unit testing Desirable DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube Red Hat Openshift container platform or Kubernetes Quarkus Framework Front end development using ...