Unit Testing Jobs in London

1 to 25 of 40 Unit Testing Jobs in London

Full Stack Java Developer Urgent

London, South East, England, United Kingdom
Morson Edge
development excellence within the constraints of a regulated banking environment. This role requires full-lifecycle engineering capability, including functional and non-functional analysis, application architecture and design, coding and unit testing, documentation, manual and automated testing, and support for continuous integration, testing and delivery. The developer will also be expected to write Agile epics and user … into functioning applications. Experience working in a technical Agile environment—using build tools, static/dynamic code analysis, CI/CD pipelines (such as Jenkins or TeamCity) and automation testing—is essential, as is strong unit-testing capability. Additional knowledge of the Elastic ELK stack, Docker/Kubernetes, Cucumber/Selenium, or IBMi RPG and IBM DB2 More ❯
Employment Type: Full-Time
Salary: £100,000 - £110,000 per annum
Posted:

Full Stack Java Engineer (Urgent)

London Area, United Kingdom
Morson Edge (Technology)
development excellence within the constraints of a regulated banking environment. This role requires full-lifecycle engineering capability, including functional and non-functional analysis, application architecture and design, coding and unit testing, documentation, manual and automated testing, and support for continuous integration, testing and delivery. The developer will also be expected to write Agile epics and user … into functioning applications. Experience working in a technical Agile environment—using build tools, static/dynamic code analysis, CI/CD pipelines (such as Jenkins or TeamCity) and automation testing—is essential, as is strong unit-testing capability. Additional knowledge of the Elastic ELK stack, Docker/Kubernetes, Cucumber/Selenium, or IBMi RPG and IBM DB2 More ❯
Posted:

Clinical Systems Developer/Support analyst

Beckenham, United Kingdom
South London and Maudsley NHS Foundation Trust
to link data from multiple sources, including sensitive patient data. Perform SQL Server administrative tasks as needed. Develop reporting tools and facilitate data extraction for research and audit purposes. Testing & Quality Assurance Perform robust testing of developments prior to deployment, ensuring they meet specifications and are fit for purpose. Define and support acceptance testing, gather feedback from … pre-release testers. Coordinate testing of new developments with appropriate stakeholders. Release & Maintenance Participate in product release and post-release activities, including support and subsequent build/release cycles. Provide day-to-day technical support for clinical applications used within the Trust. Monitor application performance, troubleshoot issues, and implement fixes to maintain service delivery. About us Flexible working: As … to link data from multiple sources, including sensitive patient data. Perform SQL Server administrative tasks as needed. Develop reporting tools and facilitate data extraction for research and audit purposes. Testing & Quality Assurance Perform robust testing of developments prior to deployment, ensuring they meet specifications and are fit for purpose. Define and support acceptance testing, gather feedback from More ❯
Employment Type: Permanent
Salary: £44485.00 - £52521.00 a year
Posted:

Cloud DevOps Engineer

City Of Westminster, London, United Kingdom
Hybrid/Remote Options
Additional Resources
to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development environment, collaborating with cross-functional … knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies . A collaborative More ❯
Employment Type: Permanent
Salary: GBP 500 - 600 Daily
Posted:

Cloud DevOps Engineer

London, South East, England, United Kingdom
Hybrid/Remote Options
Additional Resources Ltd
to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development environment, collaborating with cross-functional … knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies . A collaborative More ❯
Employment Type: Contractor
Rate: £500 - £600 per day
Posted:

Cloud DevOps Engineer

Westminster, City of Westminster, Greater London, United Kingdom
Hybrid/Remote Options
Additional Resources
to ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute to an Agile development environment, collaborating with cross-functional … knowledge of routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux environments and Open Source technologies . A collaborative More ❯
Employment Type: Permanent
Salary: £500 - £600/day
Posted:

Senior Mobile Engineer

London, England, United Kingdom
Skin Analytics
requirements Proficiency with CI/CD for mobile apps using tools like Fastlane or GitHub/Bitbucket Pipelines Experience managing TestFlight and Play Store deployments, including internal/beta testing tracks Experience with unit testing, integration testing, and preferably end-to-end testing using tools (e.g. Appium) Familiarity with crash reporting and performance monitoring tools More ❯
Posted:

Lead Software Development Engineer in Test - Java

Greater London, England, United Kingdom
Hybrid/Remote Options
Global Relay
As a Lead Software Development Engineer in Test (SDET), you oversee testing resources on a small, highly focused team responsible for delivery of highly scalable and robust services within Global Relay’s platform. You are responsible to ensure appropriate and efficient testing strategies are applied in your areas of responsibility, with a focus on shift-left testing … automation frameworks and coverage while mentoring other SDETs in the team on industry leading technologies and test practices. You will guide and participate hands-on in the team’s testing efforts to ensure quality of coverage, quality of code and quality of delivery. Your Job: Manage performance assessments and hiring for a small team of SDETs Drive the team … s testing and automation strategies Define and organize the teams test planning for releases Design and coding of automation frameworks, tests and tools Participate in team planning and story grooming Participate in test execution, issue identification and resolution in support of the release Propose and implement improvements to automation and test processes Develop and maintain shared testing libraries More ❯
Posted:

Lead Software Development Engineer in Test (Java)

London, England, United Kingdom
Global Relay
work environment that encourages employees to collaborate and learn from each other, completely free of barriers. Your role: As a Lead Software Development Engineer in Test (SDET), you oversee testing resources on a small, highly focused team responsible for delivery of highly scalable and robust services within Global Relay’s platform. You are responsible to ensure appropriate and efficient … testing strategies are applied in your areas of responsibility, with a focus on shift-left testing principles. You will drive continual improvement in your team’s automation frameworks and coverage while mentoring other SDETs in the team on industry leading technologies and test practices. You will guide and participate hands-on in the team’s testing efforts … to ensure quality of coverage, quality of code and quality of delivery. Your responsibilities: Manage performance assessments and hiring for a small team of SDETs Drive the team’s testing and automation strategies Define and organize the teams test planning for releases Design and coding of automation frameworks, tests and tools Participate in team planning and story grooming Participate More ❯
Posted:

Intermediate SDET (Java)

London, England, United Kingdom
Global Relay
part of a small, highly focused team responsible for delivery of highly scalable and robust services within Global Relay’s platform. You will work directly in code to design testing solutions for web applications and API services of a large-scale system. You will support the team’s release and testing efforts while growing and maintaining automated coverage … coverage Document the automation framework, tools and infrastructure About you: Minimum 3 years of automation development experience Strong understanding of the Java language and object-oriented principles Experience with testing practices in an agile environment Experience with unit testing frameworks such as JUnit Experience testing backend systems or APIs Experience with any of the following is … an asset: Testing performance with JMeter or similar tools Web services technology such as REST, JSON or Thrift Testing web applications with Selenium WebDriver Big data technology such as Hadoop, MongoDB, Kafka or SQL Network principles and protocols such as HTTP, TLS and TCP Continuous integration systems such as Jenkins or Bamboo Continuous delivery concepts What you can More ❯
Posted:

Web Developer

London Area, United Kingdom
Global Relay
product requirements. Your Job: Work as a part of an cross-functional and geo-located team to maintain & implement new features of the corporate and information service websites Write unit and integration tests for your code Collaborate with UI & interaction designers to translate mock-ups into a functioning web application that is accessible and responsive with exceptional usability Collaborate … Node task runners/pre-processors Awareness of coding standards and principles like dependency inversion (SOLID etc). Web Service API integration Experience with TDD environment (Test Driven development) Unit testing with PHP Unit and/or a JS test framework eg Mocha, Jasmine/Jest, React Test Worked in an agile environment (Epics, User Stories, Tasks More ❯
Posted:

Senior Full Stack Developer

London Area, United Kingdom
Safe Intelligence
Optimistic Concurrency Control - OCC) and schema design, domain-driven architecture, and concurrency. While Golang is preferred, demonstrable API experience in other languages is also valuable. Proficiency in integration and unit testing, with a strong commitment to code quality and maintainability. Strong knowledge of DevOps and Git best practices. Experience automating version control, testing, and releases, preferably with More ❯
Posted:

Python Developer

London, United Kingdom
Hybrid/Remote Options
Pontoon
lifecycle. Maintain high standards of design quality, ensuring the system is maintainable, extensible, robust, and scalable. Contribute to and adhere to established Agile development and QA processes, including automated unit and integration testing. Provide support during escalated production issues, addressing functionality and technical queries from users and teams across global locations. Collaborate with developers and project managers in supporting … testing and User Acceptance Testing (UAT) phases for integration projects, including running reports, tracking issues, and reporting progress. Skills & Experience: Proven experience in enterprise development using Python. Comprehensive understanding of the full software development lifecycle. Familiarity with Agile practices, including unit testing, continuous integration, and refactoring. Strong ability to translate user requirements into functional and efficient More ❯
Employment Type: Contract
Rate: £650 - £750/day
Posted:

Python Developer

London, South East, England, United Kingdom
Hybrid/Remote Options
Pontoon
lifecycle. Maintain high standards of design quality, ensuring the system is maintainable, extensible, robust, and scalable. Contribute to and adhere to established Agile development and QA processes, including automated unit and integration testing. Provide support during escalated production issues, addressing functionality and technical queries from users and teams across global locations. Collaborate with developers and project managers in supporting … testing and User Acceptance Testing (UAT) phases for integration projects, including running reports, tracking issues, and reporting progress. Skills & Experience: Proven experience in enterprise development using Python. Comprehensive understanding of the full software development lifecycle. Familiarity with Agile practices, including unit testing, continuous integration, and refactoring. Strong ability to translate user requirements into functional and efficient More ❯
Employment Type: Contractor
Rate: £650 - £750 per day
Posted:

Python Developer

London, United Kingdom
Adecco
lifecycle. Maintain high standards of design quality, ensuring the system is maintainable, extensible, robust, and scalable. Contribute to and adhere to established Agile development and QA processes, including automated unit and integration testing. Provide support during escalated production issues, addressing functionality and technical queries from users and teams across global locations. Collaborate with developers and project managers in supporting … testing and User Acceptance Testing (UAT) phases for integration projects, including running reports, tracking issues, and reporting progress. Skills & Experience: Proven experience in enterprise development using Python. Comprehensive understanding of the full software development lifecycle. Familiarity with Agile practices, including unit testing, continuous integration, and refactoring. Strong ability to translate user requirements into functional and efficient More ❯
Employment Type: Contract
Rate: £700 - £750/day
Posted:

Senior Backend Python Developer

London, South East, England, United Kingdom
Hybrid/Remote Options
Avanti
within AWS or Azure environments for deployment and scaling. Collaborate with AI scientists and product managers to build seamless data-driven applications. Implement best practices in CI/CD , unit testing , and system integration . Key Skills & Experience Proven experience as a Backend Python Developer , ideally within cloud environments. Solid understanding of microservice architecture and API development . … Experience with AWS or Azure and containerisation (Docker, Kubernetes). Exposure to MLOps or AI model integration is desirable. Strong coding standards, version control (Git), and testing practices. Excellent communication and problem-solving abilities. If you are interested in this position, please apply now or feel free to reach out to Mike Walton at Avanti Recruitment for further information. More ❯
Employment Type: Full-Time
Salary: £80,000 - £90,000 per annum
Posted:

Senior Finance Systems Analyst

London, United Kingdom
Hybrid/Remote Options
Goodman Masson
resolution related to data interfaces between core finance systems. Contribute to reporting system upgrades and enhancements across analytics and business intelligence tools. Develop and execute system test plans, including unit testing and user acceptance testing (UAT). Provide end-user support, training, and process documentation for finance system users. Troubleshoot system issues and collaborate with technical support More ❯
Employment Type: Contract
Rate: £300 - £350/day
Posted:

Senior Finance Systems Analyst

London, South East, England, United Kingdom
Hybrid/Remote Options
Goodman Masson
resolution related to data interfaces between core finance systems. Contribute to reporting system upgrades and enhancements across analytics and business intelligence tools. Develop and execute system test plans, including unit testing and user acceptance testing (UAT). Provide end-user support, training, and process documentation for finance system users. Troubleshoot system issues and collaborate with technical support More ❯
Employment Type: Contractor
Rate: £300 - £350 per day
Posted:

Front End Developer - ReactJS, Redux, Typescript

London, United Kingdom
Hays Technology
CSS tech stack. Previous experience implementing analytics in a web front end using tools such as Adobe Analytics. Strong understanding of state management principles and routing strategies. Proficient in unit testing and Test-Driven Development using Jest or Vitest. Skilled in Git, GitLab workflows, and managing merge requests. Experienced with NPM Workspaces, pre-commit hooks, and build/ More ❯
Employment Type: Contract
Rate: £545 - £548/day Up to £545 per day (Inside IR35)
Posted:

Front End Developer - ReactJS, Redux, Typescript

London, South East, England, United Kingdom
Hays Specialist Recruitment Limited
CSS tech stack. Previous experience implementing analytics in a web front end using tools such as Adobe Analytics. Strong understanding of state management principles and routing strategies. Proficient in unit testing and Test-Driven Development using Jest or Vitest. Skilled in Git, GitLab workflows, and managing merge requests. Experienced with NPM Workspaces, pre-commit hooks, and build/ More ❯
Employment Type: Contractor
Rate: £545 - £548 per day
Posted:

Power Platform Developer

East London, London, England, United Kingdom
Computappoint
scripts Strong understanding of Azure services such as Azure functions, Logic Apps, Azure Service Bus, Azure DevOps, and other Azure services Strong experience with C#, .NET Strong experience in Unit Testing Experience with CI/CD for Power Platform and Azure Services Prior experience of LotusScript Prior experience of HCL Notes (Lotus Notes) Formula Language Finance experience Services More ❯
Employment Type: Contractor
Rate: £400 - £415 per day
Posted:

Senior Back End Engineer

London Area, United Kingdom
Octopus Money
the business can depend on for success. Our API service layer is written in Go, following a documentation-first mindset. We use a service-oriented architecture to enable extensive unit testing with generated mocks. Our services are deployed via a CI/CD pipeline to our AWS cloud environments. You will be responsible for: Code Development and Review More ❯
Posted:

Data Engineer Python

London, South East, England, United Kingdom
Hays Specialist Recruitment Limited
About the RoleWe are looking for a Python Data Engineer with strong hands-on experience in Behave-based unit testing, PySpark development, Delta Lake optimisation, and Azure cloud services. This role focusses on designing and deploying scalable data processing solutions in a containerised environment, emphasising maintainable, configurable, and test-driven code delivery.Key Responsibilities Develop and maintain data ingestion … transformation, and validation pipelines using Python and PySpark. Implement unit and behavior-driven testing with Behave, ensuring robust mocking and patching of dependencies. Design and maintain Delta Lake tables for optimised query performance, ACID compliance, and incremental data loads. Build and manage containerised environments using Docker for consistent development, testing, and deployment. Develop configurable, parameter-driven codebases More ❯
Employment Type: Contractor
Rate: £400 - £450 per day
Posted:

Data Engineer (Python)

London, United Kingdom
Hays Technology
About the RoleWe are looking for a Python Data Engineer with strong hands-on experience in Behave-based unit testing, PySpark development, Delta Lake optimisation, and Azure cloud services. This role focusses on designing and deploying scalable data processing solutions in a containerised environment, emphasising maintainable, configurable, and test-driven code delivery. Key Responsibilities Develop and maintain data … ingestion, transformation, and validation pipelines using Python and PySpark. Implement unit and behavior-driven testing with Behave, ensuring robust mocking and patching of dependencies. Design and maintain Delta Lake tables for optimised query performance, ACID compliance, and incremental data loads. Build and manage containerised environments using Docker for consistent development, testing, and deployment. Develop configurable, parameter-driven More ❯
Employment Type: Contract
Rate: £400 - £450/day 450
Posted:

Senior React Developer (React/JavaScript)

London Area, United Kingdom
Hybrid/Remote Options
Global Relay
and secure then you’ll fit in around here. Your responsibilities: Work as a part of an Agile development team to design, implement single-page style web application Write unit and integration tests for your code Collaborate with interaction designers to translate mock-ups into a functioning web application that is accessible and responsive with exceptional usability Collaborate with … test driven development Experience with any of the following is a nice to have: Worked in an Agile environment Some React.js experience Web Service API integration Selenium/Cypress Unit testing with Mocha, Jasmine/Jest, React Test Related web technologies like Sass/Less, AJAX and JSON Micro Front-End What you can expect: At Global Relay More ❯
Posted:
Unit Testing
London
10th Percentile
£61,250
25th Percentile
£77,500
Median
£95,000
75th Percentile
£125,000
90th Percentile
£140,000