16 of 16 DemandTrendContract Code Quality Jobs in London

to lead, scale and inspire their CTO automation development teams across Fixed, Mobile and B2B networks. You'll head up a high-performing group of 30+ developers, driving innovation, code quality and delivery excellence.This role is a rare opportunity to blend strategic leadership with hands-on technical direction, working across cutting-edge automation, microservices and emerging AI … do: Lead, grow, and mentor multiple development squads across fixed, mobile and B2B networks. Drive the design and delivery of automation solutions, breaking down silos and creating synergies. Oversee code quality, coding standards and ways of working. Work with product teams, architects and analysts to maximise delivery value. Shape strategic use cases, design tactical solutions and explore More ❯

solutions. Key Responsibilities: Design, develop, and implement robust Java-based applications for enterprise use. Collaborate with product owners, architects, and business stakeholders to translate requirements into technical solutions. Lead code reviews, enforce best practices, and provide technical guidance to junior developers. Optimize application performance, scalability, and reliability. Integrate applications with databases, APIs, and third-party systems. Ensure code quality, maintainability, and compliance with security standards. Troubleshoot, debug, and resolve complex production issues. Contribute to continuous improvement in development processes and tools. Required Skills & Experience: 5–8+ years of experience in Java/J2EE application development. Strong knowledge of Core Java, Spring Framework (Spring Boot, Spring MVC, Spring Security), Hibernate/JPA. Hands-on experience with More ❯

and maintain Java applications using Spring Boot. Microservices: Implement and manage microservices architecture. Front-End Integration: Develop front-end interfaces with Angular. Database Management: Design and optimize relational databases. Code Quality: Write clean, efficient code and perform code reviews. Linux Administration: Manage and maintain Linux servers. Collaboration: Work with cross-functional teams to define and More ❯

working on secure and business-critical systems that impact millions of citizens. You’ll play a key role in embedding test automation within cross-functional delivery teams, ensuring quality and resilience across complex public-sector services.Key Responsibilities Design, build, and maintain robust automation frameworks within Agile, GDS-aligned delivery environments. Collaborate closely with developers, product teams, and stakeholders … Contribute to CI/CD pipelines and trunk-based development workflows, ensuring automation supports rapid, reliable delivery. Support test coverage across APIs, microservices, and user interfaces. Provide assurance on code quality, peer review automation code, and share knowledge with the wider test community. Essential Skills & Experience Java Extensive hands-on coding in Java , following industry best More ❯

Hybrid) Duration: 6 Months Day rate: £400 - £450 Umbrella Only As a Senior React Native Developer , you will play a key role in shaping the architecture, performance, and quality of our mobile applications. You'll lead development efforts, promote best practices, and work closely with product managers and designers to deliver user-centric solutions that scale. This role … development team. What You'll Do: Lead the development of mobile applications using React Native and modern JavaScript (ES6+). Drive technical design and implementation of new features, ensuring code quality and maintainability. Promote modern architectural patterns, such as modular design and state management best practices (e.g., Redux, Zustand, or Context API). Collaborate with cross-functional … teams including product, UX/UI, and backend developers. Review code, mentor team members, and lead by example in delivering scalable and maintainable solutions. Continuously evaluate emerging technologies and contribute to strategic technical decisions. What We're Looking For: 5-8 years of experience in front-end or mobile development, with a strong focus on React Native . Deep More ❯

services using TypeScript and Node.js. Lead the design and evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. Champion best practice in code quality, automated testing (Vitest, Playwright) and observability to deliver resilient, maintainable, and production-ready business logic. Drive DevOps excellence by collaborating on CI/CD pipelines (Jenkins … Concourse), containerisation (Docker) and Kubernetes deployments. Mentor and empower fellow engineers through thoughtful code reviews, technical guidance and fostering a culture of collaborative problem-solving. Influence technical strategy by working within a cross-functional Agile team to guide process improvements and make key architectural decisions. Experience Extensive production experience architecting and delivering complex applications with TypeScript and Node.js . More ❯

containerisation and deployments. Build and maintain CI/CD pipelines (GitHub Actions). Monitor and optimise system performance and uptime. Write robust unit and integration tests to ensure high code quality. Collaborate with cross-functional teams to define, design, and deliver new features. What We're Looking For 5+ years' experience as a Java & Node.js/TypeScript developer. Hands More ❯

maintain responsive front-end applications using modern frameworks and technologies. Collaborate closely with UX/UI designers, back-end developers, and data teams to deliver seamless digital experiences. Ensure code quality through best practices including testing, reviews, and documentation. Integrate front-end components with AWS-based services, including Lambda. Participate in Agile ceremonies and contribute to sprint More ❯

team during a period of transition, so we need someone who can hit the ground running, pick up brownfield projects quickly, and focus on business outcomes as much as code quality. Key Responsibilities Develop and maintain PHP applications (PHP 7 & 8) within predominantly custom frameworks . Upgrade an existing project from Zend (now Laminas) to a newer version. Support More ❯

and retrieval-augmented generation Build agentic systems and LLM-assisted frameworks using modern orchestration tools Collaborate with cross-functional teams to deliver production-ready solutions Maintain high standards of code quality, documentation, and testing Develop evaluation pipelines and ensure robust quality control across deployments Essential Skills and Experience: Advanced Python programming skills with experience in More ❯

and retrieval-augmented generation Build agentic systems and LLM-assisted frameworks using modern orchestration tools Collaborate with cross-functional teams to deliver production-ready solutions Maintain high standards of code quality, documentation, and testing Develop evaluation pipelines and ensure robust quality control across deployments Essential Skills and Experience: Advanced Python programming skills with experience in More ❯

and drive improvements in performance, observability, and infrastructure Lead the design of domain models aligned with evolving business needs Be a go-to person for backend excellence, and improve code quality Engineering centric requirement definition (user stories) and analysis This means you must: Be fluent in Python, Flask, Sqlalchemy and Postgres Be able to effectively design APIs More ❯

product teams to deliver scalable solutions. Architect and maintain reusable components and design systems. Integrate frontend with Node.js-based services and APIs. Champion best practices in performance, accessibility, and code quality. If the above aligns with your skill set then please submit CV without delay. Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business More ❯

are seeking a talented and motivated Frontend Developer with strong expertise in TypeScript to join our growing development team. In this role, you will work on building high-quality, scalable, and responsive web applications using React and TypeScript. You will collaborate closely with cross-functional teams to deliver exceptional user experiences, optimize performance, and contribute to the overall … scalable and responsive web applications using React.js and TypeScript. Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces. Write clean, maintainable, and efficient code while adhering to best practices. Optimize applications for maximum performance across a wide range of devices and browsers. Participate in code reviews and maintain a high level of … code quality. Troubleshoot and debug issues in both development and production environments. Contribute to architectural decisions and collaborate with other engineers on overall application design. Ensure the scalability and security of applications by following best development practices. Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the project as appropriate. Work with More ❯

are seeking a talented and motivated Frontend Developer with strong expertise in TypeScript to join our growing development team. In this role, you will work on building high-quality, scalable, and responsive web applications using React and TypeScript. You will collaborate closely with cross-functional teams to deliver exceptional user experiences, optimize performance, and contribute to the overall … scalable and responsive web applications using React.js and TypeScript. Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces. Write clean, maintainable, and efficient code while adhering to best practices. Optimize applications for maximum performance across a wide range of devices and browsers. Participate in code reviews and maintain a high level of … code quality. Troubleshoot and debug issues in both development and production environments. Contribute to architectural decisions and collaborate with other engineers on overall application design. Ensure the scalability and security of applications by following best development practices. Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the project as appropriate. Work with More ❯

testing projects, primarily within an Agile environment. This role is ideal for someone passionate about testing, with strong analytical skills, and a desire to build a career in software quality assurance. Key Responsibilities Testing & QA Execution Review requirements, specifications, and documentation to assure product quality. Define, maintain, and execute test scenarios and scripts for client's core systems. … manage test data for execution. Bug Management & Reporting Analyse, document, and track defects in line with agreed processes. Build dashboards and status reports to communicate testing progress and quality metrics. Knowledge, Skills & Experience We are looking for a motivated, detail-oriented individual with the following: Experience with electronic trading flows (D2D, D2C, Bloomberg, Tradeweb, algo trading, smart order … with Microsoft Office tools (Word, Excel, PowerPoint, Outlook). Strong documentation, bug reporting, and prioritisation skills. Excellent problem-solving, communication, and stakeholder management skills. Personal Attributes Passionate about quality assurance and software testing. Strong team player with excellent interpersonal skills. Solution-driven, resilient, and calm under pressure. Organised and able to manage changing priorities. Eager to learn and More ❯