101 to 125 of 153 Clean Code Jobs in London

SaaS products at scale Strong understanding of UI/UX principles and performance optimization Excellent communication, problem-solving, and leadership skills Passion for writing clean, maintainable, and scalable code Bonus: Experience in financial technology or asset management software. Salary £85k - £95k + benefits If your keen to find ...

testing new AI frameworks and technologies Ensuring AI systems are developed responsibly, ethically, and with a strong focus on transparency and fairness Writing clean, maintainable, and scalable code Requirements Degree in Computer Science, Artificial Intelligence, Data Science, Mathematics, Engineering, or a related field Strong understanding of machine learning ...

Models and agentic systems Identify the right state of the art solutions for the bank's objectives and manage colleagues to implement them as clean, production-ready code Communicate findings and recommendations through clear and concise reports and presentations Required qualifications, capabilities and skills Experience leading teams ...

Runa, based in London, is seeking a Senior Software Engineer to architect, implement and deploy services from end to end. You will write clean, scalable code to build products used by thousands of customers. You will work with Python, TypeScript and JavaScript on a modern AWS serverless stack ...

they do. Were looking for a Mid/Senior Backend Engineer to join a team that keeps frameworks lean and focuses on what matters: clean, maintainable code, shipped fast with TDD, DDD, and continuous integration and delivery. Our stack includes Java 17/21, GCP, Kubernetes, Grafana, Prometheus ...

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 AWS infrastructure. ...

ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience for customers. You will be a high-performing developer who thrives on clean architecture, elegant code collaborative delivery whilst working as part of an Agile cross-functional team. Skills and Experience * Strong proficiency in Swift … SDKs, with a deep understanding of Jetpack libraries, Compose and modern Android architecture components. * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Xcode, Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks and the app store deployment process. * Proven experience ...

ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience for customers. You will be a high-performing developer who thrives on clean architecture, elegant code collaborative delivery whilst working as part of an Agile cross-functional team. Skills and Experience * Strong proficiency in Swift … libraries, Compose and modern Android architecture components. * Experience with Kotlin Multiplatform (KMM high desirable) * Experience with RESTful APIs, JSON, and mobile architecture patterns (MVVM, Clean Architecture). * Familiarity with Xcode, Android Studio, GitHub, mobile CI/CD tools, automated testing frameworks and the app store deployment process. * Proven experience ...

following established methodologies. The role involves contributing to software design at the component level, learning and applying best practices through hands-on work and code reviews, and developing communication skills by engaging with team members to understand requirements and translate them into solutions. Key responsibilities: Building and maintaining data … engineers. Working with technologies such as Python, SQL, Spark, and Airflow to process large-scale data. Using AI-assisted development tools such as Claude Code, Copilot, or Codex as part of your workflow. Contributing to ELT and ETL pipelines for data ingestion into search, graph, and relational data stores. ...

understanding of system design, scalability, and reliability . A product-oriented mindset — you design with end users and UX impact in mind. Passion for clean abstractions, maintainable code, and well-defined interfaces. Nice-to-haves Experience with cloud-native infrastructure (AWS, GCP, or Azure). Familiarity with auth ...

Design, develop and maintain data pipelines, services and platform capabilities used across DAX. Translate business and technical requirements into high-quality, maintainable solutions, writing clean, reliable and well-documented code for data ingestion, transformation and processing. Contribute to technical design, standards and best practices. Collaboration & Team Contribution … Work closely with Data Engineers, Analytics Engineers, Analysts, Product and other teams across DAX and the wider Data Group. Participate in code reviews, pairing and planning sessions, share knowledge with colleagues, and communicate clearly on progress, risks and technical decisions. Operations, Support & Improvement (30%) : Monitor and support ...

platform - Lead technical design discussions and contribute to architecture decisions - Work closely with product, design, and engineering teams to deliver high-quality solutions - Write clean, maintainable, and efficient code using modern development practices - Provide technical guidance and mentorship to junior engineers - Review code, share feedback, and support ...

Skills: You have experience building performant, responsive web applications using React and TypeScript/JavaScript. High Coding Standards: You are well-versed in writing clean, scalable, and testable code. You understand test coverage best practices, the test pyramid concept, and the value of code reviews. Systems Architecture Knowledge ...

disk I/O, and network considerations across kdb+ processes. Develop robust and reusable q libraries, utilities, and frameworks with a strong focus on clean, maintainable, and performant code. Drive continuous improvement through refactoring, performance benchmarking, and adoption of best practices. Mentor and guide junior and mid-level developers … fostering a culture of technical excellence, code quality, and knowledge sharing. Participate in design reviews, production support, and root cause analysis of complex system issues. Work collaboratively within an Agile or iterative delivery environment, contributing to design, implementation, testing, and release phases. Must have 8+ years of hands ...

Power Apps, Power Automate) Developing and integrating services within a wider architecture Ensuring solutions are user-focused, accessible, and aligned to government standards Writing clean, maintainable, and reusable code/configuration Supporting issue investigation, resolution, and continuous improvement Applying secure development practices, including awareness of OWASP principles Collaborating … looking for: Active SC Clearance (essential) Strong experience building solutions using Power Platform in production environments Solid software development background beyond low-code tools Ability to engage with senior stakeholders and non-technical users Experience breaking down requirements, refining work items, and defining acceptance criteria Understanding of clean ...

reports that look great and are easy to use with a good understanding of Fabric and how Power BI works with its components Writes clean best practice DAX follows report development best practice and documents everything delivered Supports and coaches analysts developers on Power BI best practices Your Skills … advantageous. End to end Power BI report development in production from data prep to polished visuals Power Query M for shaping transforming data DAX clean maintainable code that follows best practice Visual design UX applies data visualisation best practice produces reports that are clear consistent and visually appealing ...

maintain SAP Hybris (SAP Commerce Cloud) applications Deliver new features and enhancements across the ecommerce platform Troubleshoot, investigate and resolve technical issues Write clean, scalable and maintainable code Platform & Integrations Develop integrations between SAP Hybris and wider business systems Support platform upgrades, releases and continuous improvements Improve application ...

fast-evolving AI capabilities into scalable, maintainable, well‐engineered solutions. You will work on greenfield initiatives from idea through to production, contributing not only code but also architecture, patterns, engineering standards, and product thinking. We are looking for people who can see the bigger picture, bring ideas, challenge assumptions … patterns including LLM orchestration, agentic workflows, retrieval‐based approaches, and structured evaluation techniques Contribute to system architecture, engineering standards, and technical direction Write clean, maintainable, well‐tested code with a strong focus on quality and long‐term ownership Collaborate closely with engineers, product partners, and business stakeholders ...

onsite, London (city) £100k + 8% bonus, 10% pension, private medical Are you a Technical Lead Software Engineer who loves solving infrastructure challenges through code? We're recruiting for a Technical Lead Software Engineer to join a significant government technology programme, helping build secure, large-scale customer platforms used … infrastructure roles, this is a genuinely software engineering-focused position. You'll spend your time building automation frameworks, developing internal tooling, creating Infrastructure as Code solutions, and eliminating manual processes through clean, scalable, production-quality code. What You'll Be Doing Building automation frameworks and tooling using Python ...

onsite, London (city) £100k + 8% bonus, 10% pension, private medical Are you a Technical Lead Software Engineer who loves solving infrastructure challenges through code? We're recruiting for a Technical Lead Software Engineer to join a significant government technology programme, helping build secure, large-scale customer platforms used … infrastructure roles, this is a genuinely software engineering-focused position. You'll spend your time building automation frameworks, developing internal tooling, creating Infrastructure as Code solutions, and eliminating manual processes through clean, scalable, production-quality code. What You'll Be Doing Building automation frameworks and tooling using Python ...

within proprietary and commercially available game engines. Generalist Development: Work across multiple areas of game development such as gameplay, systems, tools, or engine-level code, depending on project needs. Critical Problem Solving: Use strong debugging and analytical skills to investigate and resolve complex technical issues across multiple systems. Technical … Design: Collaborate with designers, artists, and product leads to break down requirements and deliver practical, player-focused solutions. Code Review: Participate in code reviews, provide constructive feedback, and help maintain high standards of code quality and maintainability. WHAT WE VALUE: Strong Technical Skills: Professional experience developing games ...

fast-evolving AI capabilities into scalable, maintainable, well-engineered solutions. You will work on greenfield initiatives from idea through to production, contributing not only code but also architecture, patterns, engineering standards, and product thinking. We are looking for people who can see the bigger picture, bring ideas, challenge assumptions … patterns including LLM orchestration, agentic workflows, retrieval-based approaches, and structured evaluation techniques Contribute to system architecture, engineering standards, and technical direction Write clean, maintainable, well-tested code with a strong focus on quality and long-term ownership Collaborate closely with engineers, product partners, and business stakeholders ...

effect of each change before it ships Champion evaluation‐driven development across the wider engineering team, helping colleagues build the same habits Document code and technical specifications in line with healthcare regulatory requirements. Qualifications and experience: Essential: Bachelor's or Master's degree in Computer Science, Artificial Intelligence … build, evaluate and improve, not just experimented with prompts Excellent analytical and problem‐solving skills. Proficiency in Python, with a strong grasp of clean, typed, tested code and good software engineering practices. Understanding of prompt engineering principles and techniques Experience with systematic LLM evaluation techniques – for example, golden ...

businessLeading the UI team by managing book of work, stakeholder prioritization and career developmentDriving high quality applications by being responsible for writing clean, testable code with a high barLeading code reviews and managing SDLCCo-working with Quality Assurance (QA) team testing UI functionality and facilitating investigation ...

tool‐use and multi‐step workflows. Familiarity with frameworks such as LangGraph, Pydantic AI or similar. Strong Python engineering skills and ability to produce clean, testable, production‐quality code. Experience with context engineering: retrieval strategies, prompt construction, information routing, memory. Experience with evaluation and observability for AI systems, including … annual discretionary bonus. Lunch provided (via Just Eat for Business) and dedicated barista bar. 35 days annual leave. 9% company pension contributions. Informal dress code and excellent work/life balance. Comprehensive healthcare and life assurance. Cycle‐to‐work scheme. Monthly company events. G‐Research is committed to cultivating ...