151 to 175 of 323 Code Quality Jobs in London

monitoring and optimisation Ensure comprehensive test coverage for all work delivered and drive improvements in test practices across the existing codebase Conduct in-depth code reviews, offering constructive feedback and sharing expertise to elevate the team’s technical capabilities Architect scalable, maintainable solutions for new features, clearly communicating design … user, ensuring changes deliver meaningful impact Have significant experience with automated testing, including designing and implementing robust testing strategies to maintain code quality Bring a passion for technical and product design discussions, contributing innovative ideas and driving best practices across the team Have full working rights ...

Principal Engineer, you won't just be writing code—you will be shaping the technical DNA of one of the UK’s leading financial institutions. This is a high-visibility career move where you’ll champion modern engineering practices, steer large-scale system designs, and mentor high-performing teams … balance high-level strategic architecture with hands-on technical leadership. Lead & Deliver: Manage the technical delivery of one or more software engineering teams, safeguarding code quality, scalability, and performance. System Architecture: Convert complex functional and non-functional requirements into elegant, high-performance, and resilient system designs across ...

Java/Microservices/API design/LLMs/AI/Claude Code/Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to £120,000 + Benefits Join a newly formed Service Modernisation & AI team driving AI-first software development … performance and reliability Build AI-powered tooling, including MCP servers and AI-assisted CI/CD pipelines Demonstrate how AI transforms developer productivity and code quality What We’re Looking For 6+ years’ backend engineering experience (Java) Proven experience modernising production systems at scale Hands ...

architecture, including compute, Kubernetes, networking, secrets management, observability, CI/CD, and infrastructure as code.Integrate AI-assisted engineering workflows to support faster delivery, improved code quality, automation, and data-driven operational decisions.Establish governance, security, and compliance guardrails through policy-as-code and auditable platform patterns.Improve platform … developer platforms, cloud-native platforms, or large-scale distributed systems within complex enterprise environments.A technical specialist with expertise across cloud platforms, Kubernetes, infrastructure as code, CI/CD, observability, service networking, and platform security.A capable software engineer with proficiency in at least one modern programming language such as Python ...

systems within our iGaming platform. This role combines hands-on engineering excellence with technical leadership responsibilities, including mentoring junior and mid-level developers, reviewing code quality, and driving best engineering practices across the team. The ideal candidate will have strong expertise in in Unreal Engine 5, modern … real‐time workloads. Collaborate closely with cross‐functional teams to ensure seamless integration and optimal performance across the platform. Write clean, maintainable, and efficient code with a strong focus on stability, determinism, and low latency. Own performance profiling and optimisation across CPU, GPU, memory, and asset usage to meet ...

quality testing frameworks covering performance, data quality and reliability Leveraging agentic AI development tools to improve engineering productivity while maintaining code quality Coaching and influencing experienced engineers through technical leadership rather than line management Working closely with enterprise architecture and platform teams ...

quality testing frameworks covering performance, data quality and reliability Leveraging Agentic AI development tools to improve engineering productivity while maintaining code quality Coaching and influencing experienced engineers through technical leadership rather than line management Working closely with enterprise architecture and platform teams ...

within tight development cycles — branch, commit, test, and ship via GitHub-based CI/CD pipelines. Write comprehensive unit tests and contribute to high code quality standards. Collaborate within agile sprints and contribute to technical design decisions. The Ideal Candidate Our client is seeking someone with: Strong … Search, Cosmos DB, AKS). Experience integrating AI/LLM-based services into production systems. Familiarity with modern development tooling such as VS Code and AI-assisted coding tools. Why Apply? Work on a genuinely AI-first product with real-world commercial impact. Join a collaborative, technically strong team ...

with a short-term tactical solution to deliver something a little quicker than we would like. You will have a strong focus on code quality but also on flexibility and pragmatically paying off tech debt. We believe passionately in thorough automated testing so, whilst … other way around. Initial screening call (5 mins) Call with the VP of Engineering where you’ll show us some of your code (30 mins) Pair with and get to know a member of our engineering team (1-2 hours) Reference checks + offer Must Haves Good communication skills ...

role will involve using AI coding tools to accelerate development. You must have the technical expertise to guide AI effectively, review generated code, identify hallucinations or poor solutions, and ensure everything is properly tested and production-ready. Essential Experience: Strong commercial React Native experience Strong TypeScript experience Experience building … Experience with Expo and modern React Native tooling Strong understanding of Front End architecture, APIs and state management Experience with automated testing, monitoring and code quality Ability to take ownership of Front End delivery Experience using AI coding assistants such as Claude Code, Cursor or GitHub ...

play a key role in shaping the future of our mobile platforms. You'll lead the design and delivery of high-quality Android solutions, influence technical direction, mentor engineers, and help establish engineering best practices across teams. Working closely with Product, Design, and Engineering partners, you'll drive … Collaborate with Product Managers, Designers, Architects, and Engineers to translate business objectives into scalable technical solutions Drive engineering excellence through modern software practices, automation, code quality, testing, observability, and CI/CD Contribute to platform-level initiatives, shared libraries, and cross-platform capabilities, including Kotlin Multiplatform Identify ...

/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex issues, and optimize system performance. The role demands expertise … define project requirements accurately.* Optimize application performance for scalability, security, and efficiency consistently.* Troubleshoot and resolve software defects and technical issues promptly.* Maintain code quality through reviews, testing, and documentation standards.* Mentor junior developers and provide technical guidance during projects.* Participate in software architecture design and decision ...

cost of getting any of it wrong. Mission‐critical ownership : Demonstrated ability to own features end‐to‐end. You don’t just "write code"; you analyze customer financing workflows, define rigorous technical requirements, and take full accountability for the reliability of every transaction you process. Highly effective stakeholder communication … tasks. Practical experience leveraging modern developer tools : (such as agentic coding or advanced automation techniques) to achieve significantly accelerated development velocity while rigorously upholding code quality standards. What will you find working at INFINIT? Competitive Salary and Equity : We offer highly competitive salaries and a stake ...

shared interfaces and contracts. Raising the engineering bar broadly: establishing standards for testing (unit, integration, and on-hardware validation), performance benchmarking, operational excellence, and code quality, and holding the team to them through design and code review. Growing engineers: mentoring Junior and Mid level SDE, developing … scaling) of new and current systems Knowledge of professional software engineering \\& best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence PREFERRED QUALIFICATIONS Bachelor's degree in computer science or equivalent Experience with full software ...

command and control of Cboe Europe\'s three Equities venues, the APA Trade Reporting service and SI Technology service. We care about user experience, code quality, testing, and automation. Location & Work Model Cboe Europe operates in a flexible and hybrid work environment, with teams working regularly from … features are correctly implemented in certification and production environments. Provide input into team sprint planning and participate in periodic team meetings; participate in peer code reviews and requirements gathering. Write documentation, technical specifications, and requirement materials for data and applications; participate in internal and industry-wide weekend testing ...

Engineering initiatives Provide technical leadership, mentoring and coaching to AI Engineers across the wider team Help establish engineering standards, best practice and code quality across AI Engineering Collaborate closely with Digital Products, AI, Data & business stakeholders Support the development of AI Agents and intelligent automation capabilities Drive ...

technical roadmaps. Guide multidisciplinary engineering teams through end-to-end solution delivery. Conduct technical discovery sessions with senior stakeholders and executive teams. Review architecture, code quality, and engineering standards to ensure robust delivery. Evaluate AI tools, frameworks, and platforms to recommend the most appropriate technologies. Run proofs ...

success such as cost of ownership, maintainability, and portfolio operations Drives adoption and governance of approved AI-assisted engineering practices across teams to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test acceleration, release readiness, incident/root-cause … inclusion, and respect Required qualifications, capabilities, and skills Hands‐on practical experience delivering system design, application development, testing, and operational stability Experience working at code level Formal training or certification on software engineering concepts and 10+ years applied experience Extensive experience in building and running AWS/public cloud ...

teams, including core protocol engineers, security experts, and infrastructure teams, to ensure the seamless integration and functioning of the block production components. Documentation and Code Review: Maintain thorough documentation of the block production and scheduling protocols and conduct peer code reviews to uphold high standards of code quality and consistency. Shared-Memory Systems: Design and maintain high-performance shared-memory interfaces between scheduling and execution stages, enabling low-latency coordination and efficient data movement across the validator pipeline. What You\'ll Bring Experience: A Bachelor\'s degree in Computer Science, Engineering, or equivalent practical ...

data catalogue system (Fusion) to enable global data access Apply strong problem-solving skills and an engineering firm mindset to deliver secure, high-quality solutions Take ownership of technical decisions, influencing product design and application functionality Serve as a subject matter expert in data platforms and related technologies … implement firmwide frameworks, tools, and practices within the Software Development Life Cycle Promote adoption and governance of approved AI-assisted engineering practices to improve code quality and delivery speed Encourage diversity, inclusion, and respect within the team culture Apply knowledge of automation tools and AI-assisted development ...

impact? Here are the details What you’ll do Architect, design, develop, and maintain scalable and consistent services, writing reusable, modular, and maintainable code aligned with industry best practices. Collaborate closely with stakeholders, product managers, and engineering managers to translate business requirements into effective software solutions, define timelines … estimate effort. Perform code reviews, enforce coding standards, troubleshoot and debug complex issues, and ensure high code quality and performance. Stay up to date with new technologies and tools, drive their adoption when appropriate, and contribute to a culture of continuous learning and team growth. What ...

mentor engineering teams. Your work will span the entire codebase. What You’ll Do: Develop and deploy ML models, translating research into scalable, maintainable code and services Optimise ML models for speed, accuracy, and cost efficiency Evaluate and integrate cutting‐edge approaches into our ML stack Identify and solve … complex ML problems across the organisation Define and enforce best practices for code quality, model lifecycle management, etc. Mentor engineers and foster a culture of technical excellence and innovation Co‐define the long‐term technical vision What We’re Looking For: Deep understanding of the modern Machine ...

technical direction of your squad, balancing speed, quality and scalability Lead on architecture and system design decisions Stay close enough to the code to guide, unblock and raise the bar People leadership & team development Lead, mentor and develop a small squad of engineers Build a high-performance … growth Driving AI adoption in engineering workflows Champion the use of AI tools and workflows across the development lifecycle Identify opportunities to improve productivity, code quality and delivery speed through AI Help establish best practices for how AI is used effectively within the team Execution & delivery excellence ...

years focused on building, shipping, and maintaining production mobile applications. Expert-level iOS development skills, with a proven track record of delivering high-quality apps at scale. Hands-on experience building complex mobile applications with rich, performant UIs — experience in global consumer-facing products is a strong plus. … doing What you\'ll be responsible for Building and maintaining features using modern frameworks, libraries, and internal component systems, ensuring consistency, scalability, and code quality across the codebase. Delivering polished, engaging user experiences that balance visual appeal with intuitive interaction design. Owning and contributing to a robust ...

engineering leader who built your career on solid engineering foundations (whether in C#/.NET or modern JavaScript frameworks) and still care deeply about code quality, DevOps maturity, and scalable systems, this is a genuinely exciting opportunity. We're partnered with a high-growth UK SaaS technology … JavaScript/TypeScript ecosystems. Or who can demonstrate the adaptability and technical depth to operate in this environment. What matters most is engineering quality, architectural thinking, and leadership credibility, not a rigid checklist of frameworks. You'll balance people leadership, technical direction, and delivery performance, ensuring teams build ...