1 to 25 of 120 Unit Testing Jobs in London

maintain scalable, high-performance software solutions. Develop and manage Infrastructure as Code (IaC) using AWS CDK (Python) to automate deployment and cloud resource management. Drive code quality through automated testing , unit testing, and adherence to clean code principles. Manage and optimize CI/CD pipelines to improve delivery efficiency. Monitor system performance, troubleshoot issues, and ensure optimal … AWS and Infrastructure as Code , particularly AWS CDK in Python . Familiarity with Entity Framework (or similar ORM frameworks) and contract-first system design . Solid understanding of automated testing frameworks and unit testing principles. Agile methodologies and a collaborative, growth-oriented mindset. Excellent problem-solving , analytical, and communication skills. Technical Skills Proficient in back-end development More ❯

maintain scalable, high-performance software solutions. Develop and manage Infrastructure as Code (IaC) using AWS CDK (Python) to automate deployment and cloud resource management. Drive code quality through automated testing , unit testing, and adherence to clean code principles. Manage and optimize CI/CD pipelines to improve delivery efficiency. Monitor system performance, troubleshoot issues, and ensure optimal … AWS and Infrastructure as Code , particularly AWS CDK in Python . Familiarity with Entity Framework (or similar ORM frameworks) and contract-first system design . Solid understanding of automated testing frameworks and unit testing principles. Agile methodologies and a collaborative, growth-oriented mindset. Excellent problem-solving , analytical, and communication skills. Technical Skills Proficient in back-end development More ❯

multithreading , concurrency models , and Executor Services to optimize system performance and throughput. Write clean, efficient, and maintainable code using functional programming paradigms in Java. Follow and promote SOLID principles , unit testing , and other modern software development best practices. Collaborate closely with quants, traders, and other developers in a fast-paced environment. Maintain a high level of code quality … Akka, Vert.x, Flink). Solid understanding of multithreading and Executor Services in Java. Strong background in functional programming and Java 8+ features. Adherence to robust engineering practices: SOLID principles , unit testing , TDD is a plus. Excellent problem-solving skills with a mission-driven, positive attitude . Strong communication skills and ability to work effectively with cross-functional teams. More ❯

multithreading , concurrency models , and Executor Services to optimize system performance and throughput. Write clean, efficient, and maintainable code using functional programming paradigms in Java. Follow and promote SOLID principles , unit testing , and other modern software development best practices. Collaborate closely with quants, traders, and other developers in a fast-paced environment. Maintain a high level of code quality … Akka, Vert.x, Flink). Solid understanding of multithreading and Executor Services in Java. Strong background in functional programming and Java 8+ features. Adherence to robust engineering practices: SOLID principles , unit testing , TDD is a plus. Excellent problem-solving skills with a mission-driven, positive attitude . Strong communication skills and ability to work effectively with cross-functional teams. More ❯

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 ❯

microservices, event sourcing, serverless, CQRS ) Virtualisation and orchestration tools (e.g. VMs, Docker, Kubernetes, etc.) and infrastructure as code (e.g. Terraform, Pulumi) Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing Working with lean and agile practices (e.g. Kanban, Scrum, etc.) Collaborating in cross-functional teams It'd be More ❯

. • Participate in the full software development lifecycle – from requirements gathering to deployment and support. • Write clean, maintainable, and well-documented code following best practices and coding standards. • Conduct unit testing, integration testing, and support UAT and production deployments. • Work closely with Business Analysts, Solution Architects, QA, and DevOps teams to deliver high-quality solutions. • Provide L3 More ❯

. • Participate in the full software development lifecycle – from requirements gathering to deployment and support. • Write clean, maintainable, and well-documented code following best practices and coding standards. • Conduct unit testing, integration testing, and support UAT and production deployments. • Work closely with Business Analysts, Solution Architects, QA, and DevOps teams to deliver high-quality solutions. • Provide L3 More ❯

Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents.We enable Skill Set Java (11) Junit 5 React React Testing Library (Frontend Unit testing) Cypress (Frontend E2E Testing) Spring Boot (Microservice Architecture) Sybase Mongo DB Kubernatis Understanding on Cloud infra (Snowflake) Roles & Responsibilities Day to Day More ❯

complex projects from conception to deployment Make high-impact technical decisions and provide guidance Establish best practices in software engineering and machine learning development Implement rigorous code quality and testing standards across data science projects Support talent acquisition and continuous learning initiatives Knowledge and Experience Knowledge of ML model development and deployment frameworks (MLFlow, Kubeflow Advanced data querying (SQL … and data engineering pipelines (Airflow Extensive experience with comprehensive unit testing, integration testing, and test coverage strategies Experience working with Product Management teams and ability to translate complex technical concepts for non-technical stakeholders Education PhD's, Master's, or Bachelor's degree in Computer Science, Machine Learning, or related field Driving Continuous Improvement Driving for Results More ❯

requirements. Provide accurate development estimates and contribute to planning sessions. Design and develop new software features and enhancements to existing applications. Create and maintain detailed UI design specifications. Develop unit and end-to-end tests using frameworks such as Vitest and Playwright. Support User Acceptance Testing (UAT) and ensure technical documentation is up to date. Contribute to continuous … ES6) Strong UI/UX design skills - capable of working independently or within a team. Solid experience with Agile methodologies (Scrum, Kanban). Strong knowledge of: End-to-end testing with Cypress.js or Playwright Unit testing with Vitest CI/CD tools such as GitLab Version control using Git Desirable Skills: Experience with microservices and distributed systems. … Familiarity with cloud platforms (e.g., AWS, PCF). Background in financial services. Exposure to Node.js or Java. Tech Stack & Tools: Frontend: React, HTML, CSS (SCSS), TypeScript, Vite Design: Figma Testing: Vitest, Playwright · CI/CD: GitLab · Cloud & Infrastructure: AWS, Pivotal Cloud Foundry (PCF) · Backend & Databases: Java 17, Oracle, MongoDB · Monitoring: Grafana, OpenTelemetry IND_PC3 Carbon60, Lorien & SRG - The Impellam More ❯

on proficiency in Java ( latest version 21/24) , with deep knowledge of Spring Framework . API Development: Strong experience in designing and implementing RESTful APIs and controllers . Testing Skills: Solid understanding of unit testing and automation testing frameworks and best practices. Cloud Knowledge: Working knowledge of AWS services for application deployment and integration. Delivery More ❯

high-quality Java applications and microservices. Collaborate with cross-functional teams including product, UX, and QA to deliver innovative solutions. Participate in full software development lifecycle: analysis, design, development, testing, deployment, and support. Ensure code quality through unit testing, code reviews, and adherence to best practices. Troubleshoot, debug, and optimize applications for performance and scalability. Stay up More ❯

high-quality Java applications and microservices. Collaborate with cross-functional teams including product, UX, and QA to deliver innovative solutions. Participate in full software development lifecycle: analysis, design, development, testing, deployment, and support. Ensure code quality through unit testing, code reviews, and adherence to best practices. Troubleshoot, debug, and optimize applications for performance and scalability. Stay up More ❯

depending on experience and scope of 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 Integration and Continuous Delivery … service integration patterns. Familiarity with 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 deployments (Docker/Kubernetes). More ❯

depending on experience and scope of 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 Integration and Continuous Delivery … service integration patterns. Familiarity with 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 deployments (Docker/Kubernetes). More ❯

OAuth2, JWT, Azure AD) • Knowledge of containerization (Docker) and Kubernetes/OpenShift • Experience with background job processing and scheduled tasks • Understanding of SOLID principles and clean architecture • Experience with unit testing (xUnit, FluentAssertions) and integration testing • Knowledge of CI/CD pipelines and DevOps practices (ADO) Preferred Qualifications • Experience in energy trading or financial systems • Knowledge of … and carbon credit markets • Familiarity with LCFS, RFS, or RINS regulatory frameworks • Experience with Azure cloud services • Knowledge of data processing and complex calculations • Experience with Testcontainers for integration testing Business Domain Knowledge • Understanding of biogas and renewable natural gas (RNG) markets • Knowledge of carbon credit trading and environmental attribute tracking • Familiarity with petroleum industry regulations and fuel pathway More ❯

and fix issues with quality pull requests that pass tests Ensure adherence to software engineering processes to avoid technical debt Adopt continuous improvement in engineering practices (CI/CD, testing, automation) Practice Test-Driven Development (TDD) where it adds clear value to ensure robust, well-tested code Mentorship & Team Player Participate in and occasionally lead code reviews, providing quality … states) Performance best practices: memoization, virtualization, code-splitting, lazy loading, minimizing re-renders; use React Profiler and browser devtools Secure frontend practices (XSS/CSRF mitigation, CSP, input sanitization) Testing with Jest and React Testing Library Understanding of modern build tooling (Vite/Webpack), bundling, and asset delivery Here's what we're looking for: Technical Skills Solid … typed backend language) Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC) Familiarity with Redis and MongoDB Experience with software engineering best practices (unit testing, code reviews, design documentation) Experience in applying SOLID principles and Test-Driven Development methodologies Professional Qualities Very organized with exceptional attention to detail Strong communication skills Passion More ❯

and self-directed learning. Skills/Experience: Essential • Demonstrable experience of developing responsive web applications in a commercial environment with React.js. • Solid understanding of JavaScript (ES6+), HTML5, and CSS3. • Testing mindset with exposure to unit testing and end-to-end testing frameworks (ideally Jest & Playwright). • Commitment to accessibility and inclusive design. • Good understanding of responsive More ❯

principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience developing and containerizing microservice applications is a plus. 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 ❯

principles , such as load balancers, cluster DNS, autoscalers, API/SDK toolsets, and the operator pattern. Experience developing and containerizing microservice applications is a plus. 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 ❯

our team? If you can handle this, just apply for right position! Drupal Job London (UK) We are looking for Drupal experts to join our ever growing Digital Delivery Unit to work on some of the largest, most innovative enterprise web projects in the UK and around the world. If you like the sound of scaling Drupal to handle … Working in a dynamic, innovative team, collaborating on solutions and experimenting with new technologies and approaches whilst maintaining high code quality through adherence to standards, team code reviews and unit testing Helping shape the growth and direction of the clients Digital Delivery team and the clients's Immediate platform, both in the UK and with other client Drupal … the globe Working with the Drupal community to contribute Drupal distributions and modules, as well as contributing to core development. Digital Solution Services The clients UK's Digital Solutions Unit (DSU) specialises in the use of leading edge technologies and agile delivery processes to develop business solutions for large private and public sector organisations. The DSU capability teams provide More ❯

patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks, and patterns for testability. Proficiency in relational database concepts, Microsoft SQL Server , and SQL . Familiarity with front-end technologies such as HTML , CSS More ❯

patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks, and patterns for testability. Proficiency in relational database concepts, Microsoft SQL Server , and SQL . Familiarity with front-end technologies such as HTML , CSS More ❯

succeed paired with a continuous hunger to learn. Leadership - You are trusted, empathetic, accountable, and empower others around you. Primary responsibilities Collaborating with designers, writing front-end code and unit tests, working on the front-end architecture Spearheading the development of our frontend stack, architecting, and building frontend projects Being involved in inception to delivery of various features and … frameworks like Angular, React. Hands on experience in working with TypeScript. Demonstratable experience in working with and designing REST APIs Knowledge and experience in working with NodeJS Experience with Unit testing (Jest, Vitest). Solid understanding and experience in HTML 5 and CSS 3. Hands-on experience in developing pixel perfect CSS driven, table-less HTML for all … templates as well as industry best practices. Solid experience in working with CMSs. Experience with migrating projects between tech stacks. Ability of writing clean, future proof code with proper unit testing. Knowledge of at least one distributed version control system ideally Git. Good written and verbal communication skills in English. Willing to work with global project teams spread across More ❯