1 to 25 of 26 Permanent Code Quality Jobs in Central London

designed and fit for purpose Act as a technical sounding board for less‐senior engineers, providing guidance and reviewing approaches rather than simply approving code Ensure code quality, performance, and maintainability across the platform TECH STACK Node.js (backend) React/Next.js (frontend, React being the priority ...

priorities. Design, develop, and maintain full-stack applications using Node.js, AWS Lambda, React with Next.js, TypeScript, and Terraform. Write clean, efficient, and well-tested code that adheres to best practices and coding standards. Ensure code quality, organisation, and automatisation. Optimise applications for maximum speed and scalability. … Deploy applications using CI/CD pipelines and manage infrastructure as code with Terraform. Provide technical guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. ABOUT YOU Qualifications Bachelor’s or Master ...

deliver high-impact features Facilitate and contribute to Agile ceremonies (sprint planning, stand-ups, reviews, retrospectives) Mentor and coach engineers, promoting high standards of code quality and craftsmanship Drive technical decision-making, ensuring scalability, reliability, and performance Design and implement RESTful APIs and microservices architectures Oversee … Define and champion testing strategies, including unit and integration testing Troubleshoot complex technical issues and optimise system performance Maintain strong version control practices, including code reviews and branching strategies Contribute to technical documentation and knowledge sharing across the team Promote a culture of continuous learning, innovation, and engineering excellence ...

developer experience for all GS engineers. The primary focus will be on building services and tools to help developers write better and more secure code by implementing best practices, automated code reviews, and security checks. These tools will leverage AI to provide real-time feedback and suggestions, ensuring … that code quality and security standards are consistently met. Additionally, the role involves creating comprehensive documentation and training materials to support developers in adopting these tools effectively. Another key focus will be on building Agentic workflows to simplify the developer experience and help them become more productive ...

release with minimal supervision. Improve accessibility, maintainability, and test coverage across your area. Act as a trusted delivery partner for Product and QA. Strengthen code review standards and engineering consistency. Within 12 months, you will: Confidently contribute to UK and Global teams based on priority. Lead incident response efforts … blockers without requiring day-to-day direction. Accessibility & Standards: Champion accessibility best practices and ensure implementation aligns with inclusive design principles. Technical Leadership: Conduct code reviews, guide architectural decisions, and raise engineering standards across the front-end codebase. Incident Response: Lead investigations and resolution efforts during critical production incidents ...

deployment processes Support production systems (L2/L3) including debugging, enhancements and performance optimization Write and maintain unit and integration tests . Ensure high code quality and test coverage Participate in code reviews and mentor junior developers where required Must-Have Skills Strong experience in Core ...

collaborative, inclusive, and forward-thinking engineering culture that fosters innovation, autonomy, and continuous learning. Oversee the rollout of engineering standards, tooling strategies, and quality benchmarks across teams. Align engineering operations with security, compliance, and reliability goals to ensure systems run safely and at scale. Partner … with cross-functional stakeholders to ensure timely, high-quality delivery of new features, products, and enhancements. Track engineering performance through actionable KPIs-code quality, release velocity, uptime, incident rates, and more. Nurture talent within the engineering function through structured mentoring, coaching, and clear career progression ...

solutions (SQL Server or similar) Improve system performance, reliability, and automation Collaborate with cross-functional teams to translate requirements into technical solutions Participate in code reviews and maintain high standards of code quality Contribute to continuous improvement of development practices and tools Required Skills & Experience Degree … .NET Experience working with relational databases (SQL Server, Oracle, or similar) Solid understanding of object-oriented programming principles Experience developing scalable, production-quality applications Strong communication skills in English (written and verbal) Detail-oriented with a problem-solving mindset Desirable Skills Experience with multi-threading or concurrent programming ...

people in the business. Multiple hires Are you an experienced Tech Lead or Software Engineering Manager who still enjoys being close to the code? Looking for a role where you can lead a team, shape technical direction, and stay hands-on in building scalable, high-impact systems … coding) Owning the technical direction of API-first platforms Driving the evolution from legacy systems to modern, scalable architecture Ensuring high standards across code quality, testing, and delivery Acting as the technical authority and escalation point within your team Collaborating closely with Product and QA to deliver ...

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 Join a Service Modernisation team driving AI-first software development in financial services. This … 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 ...

solution design, and delivering complex technology transformations at scale Proven capability in modern engineering practices, including containerisation, CI/CD pipelines, Agile delivery, and code quality tooling Strong understanding of data platforms, visualisation, and product management principles, translating market and technology trends into compelling roadmaps Experience with … governance, prompt engineering, and deployment approaches (including RAG, fine-tuning considerations, and risk mitigation) Experience leveraging AI-assisted development tools (e.g. GitHub Copilot, Claude Code) to materially improve engineering productivity and delivery outcomes We know it s not a skill, but the successful candidate must have permission to work ...

agent‐based AI systems with orchestration tools (e.g., LangChain, CrewAI) in production. Strong Python engineering skills with solid testing, optimisation, CI/CD, and code quality; Experience implementing and scaling vector databases (Pinecone, Weaviate, Milvus) for retrieval and reasoning workloads. Deep expertise in cloud‐native AI engineering ...

About the Company We are the category-defining platform for AI-native code reviews, purpose-built for modern engineering teams navigating the explosion of AI-generated code. As the most-installed AI application on GitHub and GitLab, we provide an intelligent "Code Guardian" that integrates directly into … developer workflow. While AI coding assistants help developers write code faster, they’ve also introduced a "review bottleneck"—increasing bug counts by nearly 2x. Our platform solves this by providing context-aware, line-by-line feedback, reducing manual review time by up to 50% and ensuring enterprise-grade security ...

charting library used globally Solving complex problems around rendering, large datasets, and real-time updates Working across data structures, algorithms, and performance-critical code paths Contributing to both grid and visualisation components Building features end-to-end — from design through to release Shaping the direction of widely adopted developer … React, Angular, or Vue (and how they interact with the DOM) Ability to reason about performance, memory usage, and rendering behaviour High standards for code quality, maintainability, and correctness Why this role stands out You’ll work on core libraries used by thousands of engineering teams worldwide ...

developers to address complex problems and implement effective solutions. · Promote a quality-first approach, emphasizing straightforward architecture and the highest standards of code quality in alignment with company-wide conventions. Required skills: · Minimum of 4 years of hands-on experience with Javascript working mainly … cross-browser compatibility issues and employing effective strategies to resolve them. · Well-versed in front-end build tools, such as Webpack. · Skilled in utilizing code versioning tools, notably Git. · Sound understanding of browser rendering behavior and techniques to optimize performance. · Capable of developing and implementing unit tests for code ...

optimise system performance, develop enhancements, and resolve defects. Produce functional and technical specifications, manage integrations, and support testing activities to ensure high-quality delivery. Collaborate with stakeholders to estimate timelines, track progress, and identify continuous improvement opportunities. Your Profile Strong experience with BY/JDA WMS Dispatcher, including ...

engineering team and are looking for a Software Engineer with strong experience in Python and Java to help build and scale reliable, high‐quality systems. This will be a hybrid role with 2 days per week required on site in Central London What you’ll be doing: - Designing … building backend services using Python and Java - Working on scalable, production‐grade systems - Collaborating closely with product and engineering teams - Contributing to architecture, code quality, and best practices What we’re looking for: - Commercial experience with Python and Java - Spring Framework - Strong problem‐solving skills and clean ...

looking for a hands-on Senior AI Engineer to build and deploy cutting-edge Generative AI applications. You will be responsible for the code-level implementation of autonomous agents, RAG pipelines, and custom model fine-tuning. Working closely with architects and data teams, you will turn conceptual designs into … domain-specific tasks. · Performance Engineering: Optimise latency and throughput of AI applications. Implement caching strategies and use SageMaker Endpoints for efficient inference scaling. · Code Quality & DevOps: Write clean, testable Python code. Build CI/CD pipelines for AI models and manage prompt versioning and evaluation metrics. Technical ...

flows Bonus experience: Spring Boot, Gradle, Solace, FIX, concurrent programming, JVM tuning, React/Vue Ability to utilise AI coding assistants effectively while maintaining code quality Strong communicator with the ability to influence technical and business stakeholders Degree in Computer Science, Engineering, Maths, or a related quantitative ...

system workflows. • Work within event-driven architectures, ensuring systems remain scalable and resilient. • Use AI-assisted development tools to enhance productivity while maintaining code quality. • Run and debug applications locally, improving developer workflows and environments. • Write appropriate tests and implement observability to support production systems. • Conduct high-quality code reviews, ensuring long-term maintainability. • Apply secure development practices across authentication, data handling, and dependencies. What We’re Looking For • Proven experience delivering features end-to-end within a live product environment. • Strong full-stack capability across frontend and backend development. • Solid understanding of system design ...

support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within a senior engineering team Promote best practices around code quality, testing and reliability Participate in team support and operational responsibilities Technology Environment Core Java (deep JVM knowledge – minimal reliance on frameworks ...

development, and quantitative analysis, supporting all aspects of market data processing and trading activity. The environment is fast‐paced, collaborative, and highly technical, where code quality, performance, and low‐latency systems are top priorities. Engineers work across domains, contribute to architectural discussions, and help shape scalable, robust … business‐critical systems Ability to lead by doing—hands‐on while guiding a team Pragmatic, delivery‐focused mindset Commitment to high‐quality engineering practices and low‐latency, high‐performance systems Low‐ego, high‐performing self‐starter who values ownership, teamwork, and delivering commercial, pragmatic solutions Why Apply This ...

senior engineer who gets restless when your work feels abstract. You want to see your code in the real world, nudging health outcomes, not just engagement metrics. You’re happiest when you own problems end-to-end, from fuzzy product idea to shipped feature, and you don’t need … page spec to get moving. You care about system design and code quality, but you care just as much about whether what you’re building actually helps people. You’re product-minded: you ask “what problem are we solving for the patient?” before you ask “what stack ...

Coding Interviews (2 hours) → Offer Reporting to : VP of Technology Company size : 150 employees Working on : You’ll design and build scalable, high quality backend systems for a purpose driven digital platform. You’ll translate ideas and requirements into well architected features, selecting the right technologies for different … React You’ve delivered large features or systems end to end, from initial design through to launch and support You care about clean abstractions, code quality, and performance You enjoy collaborating with product, design, and non-technical stakeholders to deliver great user experiences ...

Python, Django, Cloud Firestore, BigQuery, and Elasticsearch to deliver scalable, reliable software. Contribute to continuous improvement by identifying opportunities to enhance system architecture and code quality. Participate in code reviews, mentoring, and knowledge sharing to maintain engineering excellence. What do I need to be successful: Degree in Computer ...