1 to 25 of 103 Clean Code Jobs in London

iteration, and strong engineering practices. Here, you'll work alongside passionate experts, leverage the latest in AI, and contribute to a culture that values clean code, thoughtful design, and direct, hands‐on problem-solving. We're not just adopting AI; we're building the intelligence that powers … engineering excellence. If you're a builder who thrives on technical challenge, delivering measurable impact, and mentoring others while getting your hands dirty with code, we want to hear from you. As a Staff Generative AI Engineer, you will: Architect & Build Production Systems: lead the hands‐on development ...

user experience, and who are excited to solve the unique challenges of agentic orchestration at scale. What You Will Do Build Production Systems: Write clean, extensible code for real users, ensuring systems are well-documented and tested. Full-Stack Shipping: Work across our stack (Python, TypeScript, React, Elixir … that improve education quality and scale our impact. Master AI Engineering: Proactively explore the potential of AI-assisted development (e.g., Cursor, Gemini, or Claude Code) to enhance quality and velocity. Technical Leadership: Act as a team multiplier by feature leading, supporting other engineers, and providing technical direction for your ...

organisation. Your Impact As a Senior SWE, you are a force multiplier whose influence extends beyond your immediate tasks. Technical Excellence: You will produce clean, extensible code that serves as a best-practice example for the squad, possessing a strong understanding of non-functional requirements like security … scalability. System Ownership: You won\'t just launch bugs-free code; you will ensure proactive monitoring is in place, defining new technical metrics to guarantee the health of Multiverse’s systems. Strategic Execution: You will advocate for incremental delivery, taking a fail-fast approach to complex problems and helping ...

utilize Azure Service Bus for async messaging, and manage IaC via Bicep. End-to-End Delivery: Take workstreams from requirement to production independently. Write clean Python code with pytest suites and collaborate closely with the DIP Architect, Data Engineering Lead, BAs, and QA. Candidate Profile Essential Experience: 5+ … engineering experience. Azure Core: Deep practical experience with Azure Function Apps, Logic Apps Standard, Service Bus, and APIM. Python & QA: Strong Python skills with clean code practices, error handling, and robust test coverage. AI Tooling: Active, day-to-day use of AI-assisted development (code generation ...

will: Explore and visualise data to discover innovative features and potential data sources. Engineer datasets, develop data pipelines, perform feature engineering, and write code to train, deploy, monitor, and run real‐time inferences. Build and monitor ML models, addressing issues such as overfitting, underfitting, data leakage, and drift. … preferences. Our technology vision and strategy encourages you to try the latest innovations, and we naturally gravitate towards serverless architectures where appropriate. We value clean, maintainable and robust code for our business critical systems. Some of the technologies currently used by the Intelligence Group are listed below - while ...

financial markets across the globe. This role involves full lifecycle Agile development, including requirements analysis, estimation, design, coding, testing, and peer code reviews. You’ll contribute to service improvement initiatives alongside development and support tasks, and coordinate with a range of technology and business partners. The position also requires … purpose, extensible and re-usable Design and build solutions which are secure and controlled Complete the design of applications and performing code analysis and overall improvement of style and usability Identify and implement improvements to code Develop a deep understanding of our users, their needs, behaviors, nice ...

scalable systems and contributing to the technical roadmap to influence the future direction of the product. Engineering Excellence & Quality: Champion best practices by writing clean, efficient code, leading rigorous code reviews and implementing comprehensive automated testing to ensure high-quality, performant tooling in an exciting new field. … practices. Qualities & Experience Professional Experience: Significant hands‐on experience developing software in an agile environment, with a proven track record of delivering high-quality, clean code. Backend & Architecture: Expertise in designing and building scalable microservices‐based architectures using languages like Node.js, Python and TypeScript. AI Tooling & Ecosystems: Proven experience ...

standards. Proactively identify, take ownership of, and resolve critical system bugs and issues using advanced problem-solving skills and comprehensive system knowledge. Maintain high code quality standards through thorough, constructive code reviews, ensuring solutions are well-tested, scalable, and maintainable. Produce well-architected, efficient, and scalable code … developing technical roadmap solution designs, identifying areas for improvement, prioritising, and executing technical debt reduction. Act as a role model for technical excellence through code reviews, pair programming, and actively mentoring and coaching mid-level and junior engineers in best practices, fostering knowledge transfer within the team. Actively lead ...

scalable systems and contributing to the technical roadmap to influence the future direction of the product. Engineering Excellence & Quality: Champion best practices by writing clean, efficient code, leading rigorous code reviews, and implementing comprehensive automated testing to ensure high‐quality, performant solutions. Mentorship & Team Growth: Lead … you... Professional Experience: Significant hands‐on experience developing software in an agile environment, with a proven track record of delivering high‐quality, clean code. Backend & Architecture: Expertise in designing and building scalable microservices‐based architectures using languages like Node.js, Python, and TypeScript. Cloud & DevOps: Hands‐on experience with cloud ...

Spark for data processing Integration withbackend services such as: PostgreSQL Redis S3 (or equivalent object storage) Expertise in modern engineering practices, including: Continuous delivery Clean code principles Automated testing & TDD Code reviews and documentation Experience working in Agile/DevOps environments Proficiency with Git-based source control … other public cloud platforms Desirable Skills Experience designing and operating high-throughput, real-time data platforms Familiarity with microservices architectures Exposure to infrastructure as code and platform engineering practices Experience working in secure or regulated environments Security Requirements Must currently hold SC clearance Must be eligible and willing ...

event‐driven systems with high reliability, scalability and observability Contribute to technical strategy and long‐term platform direction Write high‐quality, efficient and maintainable code with accompanying automated tests and documentation across UI, services and data storage layers Continuously improve existing services, libraries and shared components Ensure systems … strategies Work closely with product and business stakeholders to translate high‐level problems into thoughtful technical solutions Collaborate with team through active contribution in code reviews, knowledge‐sharing and design discussions Build domain knowledge in business and technology areas Evaluate new technologies pragmatically Contribute to CI/CD pipelines ...

with Azure cloud computing, containerisation using Docker, orchestration using AKS, and deployment automation using GitHub, GitHub Actions and Bicep IaC. Proficiency in Visual Studio Code , ideally with tools like GitHub Copilot or other AI-assisted development extensions. An AI-native approach with proven experience or strong hands-on interest … databases, including SQL and NoSQL platforms, schema design, data access patterns, query performance and secure data handling. Ability to design, build and review maintainable code while following agreed coding standards, architectural guidelines and secure development practices. Strong understanding of the SDLC - plan, design, build, implement, test and deploy - with ...

performance, and mentoring less- experienced engineers in workflow-centric delivery. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. The role involves visiting client sites; the company will cover travel expenses. Frequency is uncertain but candidates … maintain automated test suites, CI/CD pipelines, and containerised deployments Optimise Camunda engine performance and monitor workflow metrics for production environments Participate in code reviews, peer testing, and technical design discussions Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided ...

performance, and mentoring less- experienced engineers in workflow-centric delivery. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. The role involves visiting client sites; the company will cover travel expenses. Frequency is uncertain but candidates … maintain automated test suites, CI/CD pipelines, and containerised deployments Optimise Camunda engine performance and monitor workflow metrics for production environments Participate in code reviews, peer testing, and technical design discussions Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided ...

Java, C#) Solid software engineering and DevOps skills as well as the complete SDLC applied to data, e.g. design patterns, automation, testing, contract definition, clean code, CI/CD, path to production Worked with one or more cloud platforms and services (AWS, Azure, GCP) Hands-on experience with ...

senior engineers. Ship and own: take backend features from ticket to production and keep them fast, correct and healthy once they're live. Write code others build on: clean, well-tested, and clear enough for the next person to pick up. What we're looking for Backend depth … modelling (SQLAlchemy/Alembic), sensible API design, and an instinct for testing. Care where it counts: you treat correctness as a feature, because this code generates real prescriptions and orders. Enough frontend to be useful: comfortable making React changes when a feature needs it (frontend won't be your ...

managers, DevOps, QA, and other engineering teams to align on requirements, plan sprints, and deploy reliable microservices in production environments.Code Quality and Review: Write clean, efficient code following best practices in reactive programming and microservices. Participate in code reviews to ensure high quality and consistency.Testing and Debugging … Build unit tests, troubleshoot, and resolve complex issues in distributed systems, ensuring optimal performance and reliability.Documentation: Maintain documentation for architecture, code, and processes to support team efficiency and knowledge sharing.AI: Use AI tools as part of the daily workflow — for code generation, architecture exploration, codebase analysis, and rapid ...

similar) to communicate insights to stakeholders Build and maintain repeatable analytical solutions to support programme monitoring and reporting needs Produce well-documented, maintainable code and processes Technical Requirements Strong experience with: SQL and Python AWS (data/analytics services) Hands-on experience with BI tools (e.g. Power BI, Tableau … delivery environments Familiarity with: Paired programming Test-driven development (TDD/Playwright) Git/GitHub CI/CD and DevOps practices Strong commitment to clean code, documentation, and best practice engineering Key Behaviours Strong communication and relationship-building skills Collaborative and effective across multidisciplinary teams Proactive, self-starting ...

apply them Experience with software engineering and DevOps best practices as well as the complete SDLC applied to data, e.g. automation, testing, contract definition, clean code, CI/CD, path to production Worked with one or more cloud platforms and services (AWS, Azure, GCP) Extensive hands‐on experience ...

where appropriate Use AI tools to improve engineering productivity - while maintaining full accountability for quality, safety, and correctness Review, validate, and guide AI-generated code and outputs , ensuring they meet real engineering and operational standards Build services in TypeScript and Python , supported by strong testing and clean code practices Package, deploy, and operate workloads using Kubernetes (e.g. Helm) and Infrastructure as Code (e.g. Terraform) Work closely with other engineers, platform teams, and AI specialists to deliver integrated, end-to-end solutions Take responsibility for systems running in production , not just code that passes a build ...

Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. Leveraging Data, AI, and real‐time decision‐making we turn energy complexity into growth opportunities for our partners. By combining predictive algorithms with … human‐centred design, the company makes clean energy dependable and affordable. With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen. ...

mainly Java, React and/or Python Strong hands‐on experience building RESTful APIs using popular frameworks like Spring Experience following TDD and clean code principles Proficiency with data structures, algorithms and SQL Able to independently work in a fast‐paced and rapidly changing environment Preferred Qualifications Experience ...

Java, React and/or Python Strong hands‐on experience of building RESTful APIs using popular frameworks like Spring Experience of following TDD and clean code principles Proficiency with data structures, algorithms and SQL Able to independently work in fast paced and rapidly changing environment Preferred Qualifications: Experience ...

highly experienced Java Backend Engineer to lead the development of our high-performance risk systems. You will leverage your extensive experience to build clean, maintainable, performant applications; promote best practices, and collaborate closely with our quantitative and product teams. What You’ll Do High-Performance JVM Engineering: Design … risk models. Continuous Codebase Optimization: Optimize and refactor the existing codebase to enhance testing, performance and maintainability Engineering Excellence: Be a bastion of code quality and best practices, paired with a performance mindset. What You’ll Bring Professional Experience: 10+ years of experience as a Java backend engineer Mindset ...

that use AI to solve real business problems – things like intelligent assistants, workflow automation, or operational dashboards that connect to live business data. Writing clean, well‐tested, well‐documented code that your peers can build on and maintain. Debugging, improving, and taking ownership of live systems – reliability … Production Standards Ship software that is reliable, observable, and maintainable – monitoring, logging, and error handling are part of the job, not an afterthought. Write code and documentation to a standard that the team can build on and support without you in the room. Contribute to code review, testing ...