18 of 18 Remote/Hybrid Unit Testing Jobs in London

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 ...

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 ...

business requirements into robust, scalable technical designs Break down requirements into manageable development features and modules Ensure strong focus on BDD, code quality, and unit testing Identify functional and non‐functional constraints and design optimal solutions Troubleshoot and debug complex issues across the application stack Participate in performance … frameworks Database experience (Postgres, Oracle, MySQL, DB2) and ORM/JDBC Experience with Git, GitHub, Bitbucket, Subversion Familiarity with DevOps tools (TeamCity, Jenkins) Strong unit testing experience (JUnit 5) Exposure to OpenAPI, OAuth2, OIDC Experience working in Agile environments Experience using coding assistants, GenAI, and agentic AI tools ...

overall user experience. You’ll be the final checkpoint before release, helping guarantee that everything delivered meets the highest standards. Responsibilities Perform comprehensive manual testing of frontend applications Perform functional and regression testing to ensure product stability across releases Identify, analyze, reproduce, and document bugs with clear detail … product mockups and requirements during early development stages Collaborate closely with developers, designers, and product/project managers Contribute to end-to-end (E2E) testing efforts covering critical user journeys Support and gradually expand test automation coverage where applicable What makes you the perfect fit Minimum 2 years ...

size and break down requirements for new features and product efforts Communicate effectively with both technical and non-technical stakeholders Employ design patterns, testing and automation to ensure fast and safe iteration cycles. Use your knowledge to coach your teammates and level up the whole engineering organisation Play … with at least one web framework Knowledge of both SQL and NoSQL data technologies Understanding of microservice architecture and its associated challenges Familiarity with testing best practices — TDD, unit testing and integration testing, etc Experience with observability and alerting in mission-critical distributed systems ...

responsibilities. Key Responsibilities Design, implement, and maintain the platform and services supporting Motilent’s imaging analysis and visualisation platform. Define and implement automated testing and verification processes for the platform and its services. Contribute to the definition and evolution of Motilent’s platform architecture. Design, implement, and maintain Continuous … OAuth 2.0 and OpenID Connect (OIDC). Understanding of Agile software development, CI/CD pipelines, and version control systems (Git). Knowledge of unit testing, software verification, and design patterns. Nice to Have Advanced proficiency in Java and Gradle. Experience developing microservices using Spring Boot within containerised ...

Software Development: Design, develop, test, and deploy high‐quality, scalable, and maintainable code. Quality Advocacy: Promote best practices for engineering excellence in coding, testing, build, deployment, and maintenance of high‐quality software. Solution Implementation: Act as an active contributor to design and a hands‐on implementer of code. Agile … added advantage. Experience with OpenShift, Docker, and Kubernetes. Understanding of build and deployment tools like Jenkins, Tekton, UDeploy, Harness, NPM, Maven, Gradle. Implement unit testing and TDD to ensure software quality and maintainability. Proficiency in SQL databases, MongoDB, Oracle preferred. Nice to have Experience on observability and monitoring ...

Software Development: Design, develop, test, and deploy high-quality, scalable, and maintainable code. Quality Advocacy: Promote best practices for engineering excellence in coding, testing, build, deployment, and maintenance of high-quality software. Solution Implementation: Act as an active contributor to design and a hands-on implementer of code. Agile … advantage. Experience with OpenShift, Docker, and Kubernetes. Understanding of build/deployment tools like Jenkins, Tekton, UDeploy, Harness, NPM, Maven, Gradle. Implement unit testing and TDD to ensure software quality and maintainability. Proficiency in SQL databases, MongoDB, Oracle. Nice to have: Observability and monitoring tech stack familiarity. Understanding ...

PEGA Senior System Architect. You will have more than 3 years experience. Responsibilities: - Developing and implementing Pega applications based on business requirements - Performing functional testing of Pega applications to validate end-to-end requirements (willingness to perform functional testing if needed) - Debugging Pega applications using Pega OOTB debugging … tools (knowledge of tracer, Pega logs, etc.) - Participating in design discussions with the Pega lead, unit testing, and integration testing to ensure high-quality deliverables - Documenting configurations and test cases following best practices The role is based remotely and the contract is for 3 to 6 months ...

NoSQL technologies Experience of API design Cloud development/architecture (Azure) Experience working in an Agile environment (Scrum/Kanban) Knowledge and experience of Unit Testing (xUnit, nUnit) Experience integrating AI/LLM capabilities into back-end services (e.g. OpenAI, Azure OpenAI, or similar APIs) Desired Skills/ ...

analysis in high availability environments. Perform SQL and XML based troubleshooting, configuration, data validation and continuous improvement. Conduct SIT and UAT support, defect resolution, unit testing and production bug fixes. Collaborate with Product Owners, cross platform teams and third party vendors on requirements, story creation and SLA compliance. ...

with ML libraries: PyTorch, PySpark, scikit-learn, Hugging Face Transformers Proficiency in AI tooling: Azure ML, Databricks, MLflow, LangChain, LangGraph Proven experience with Git, unit testing, containerisation and agile methodologies (Jira, Confluence) Good knowledge of generative AI, machine learning, deep learning or NLP Strong communication skills able ...

Hands-on experience with Azure DevOps (or similar) and shell scripting. Engineering Principles: Deep understanding of data modeling, curation, orchestration, and TDD/unit testing. Soft Skills & Nice-to-Haves Agile approach, excellent stakeholder communication, and a results-oriented mindset. Pluses: Insurance/Reinsurance industry experience, PowerBI/Tableau ...

leading banking client is looking for a number of experienced iOS Developers with strong experience of working in Mobile Development in Swift UI, alongside testing teams. This role is based in London. This role will be Inside IR35 Via Umbrella Working in a Hybrid Model of 2 days … designing, developing and implementing high quality user interfaces that meet accessibility standards A good knowledge of Xcode, JIRA and Git A good knowledge of Unit testing These individuals execute their work as part of Agile Self-organising Scrum Teams with a proven track record for delivery based ...

Responsibilities Technical leadership and management of the delta lake migration team, organising work into 2‐week sprints, upwards reporting on progress and blockers. Development, testing and migration of some of the Delta Lake components. Quarterly planning with the Lead Architect, CTO and Product Team. In time, line management … delivering functioning, well‐tested systems. Industry experience of developing on a Linux platform. Experience of industry‐standard development methodologies such as source code control, unit testing and continuous integration. Ability to self‐organise and deliver complex projects. Strong problem‐solving skills. Strong communication skills. Computer science or other ...

Oracle Tasks Tasks include understanding business requirements, designing applications, business data analysis, programming in Visual C#.NET using both Oracle and SQL Server database, Unit testing, Quality Assurance (QA), Implementation, Production and Disaster Recovery environments supporting users and preparing documents. Along with the application development, this role will also ...

possible, for any custom development involving plugin/third party products. Provide a level of Quality Assurance on every assigned project, including system/unit testing. Contribute to project risk/issue mitigation with the project team. Support clients through deployment to go live, and complete handover documents ...

secure, scalable, and high-quality integrations across ERP, HCM, Data, and Reporting platforms. The successful candidate will produce functional and technical specifications, develop and unit test integrations, and support SIT and UAT activities to ensure stable end-to-end business processes. This role requires close collaboration with cross-functional … Cloud (OIC). Proven experience developing integrations, APIs, orchestrations, and file-based interfaces. Ability to produce high-quality functional and technical specifications. Experience with unit testing, error handling, logging, and performance optimisation. Strong experience supporting SIT and UAT phases, including defect resolution and fixes. Knowledge ...