1 to 25 of 85 Clean Code Jobs in London

stack (Vue/Nuxt or similar) Design and maintain scalable APIs and services in Node.js with SQL/Sequelize Mentor junior engineers through code reviews, pairing, and technical guidance Help shape our technical roadmap and introduce new tools, frameworks, and practices where they make sense Own technical decisions around … workplace experiences Front-end Experience with some of the following, or a strong willingness to learn: JavaScript/TypeScript – modern ES standards, async patterns, clean architecture Frameworks – Vue/Nuxt (or React/Next.js), component-based development State management – Vuex, Pinia, or equivalent patterns API integration – REST/JSON ...

engineering team building our AI-driven platform. This is a hands-on technical leadership role where you'll split your time between writing production code and mentoring engineers. You'll lead a cross-functional engineering team working across our distributed platform stack. You're accountable for your team … execution, code quality, testing practices, and continuous improvement. This is NOT a product management role and NOT a solo contributor role. You're the technical leader who ensures your team delivers reliable, well-tested code while fostering excellence and collaboration. A critical part of this role is championing ...

Hiring: Full Stack Software Developer (MERN) – 3–5 Years Experience Company: Genesis Code Location: London, England, United Kingdom Experience: 3–5 Years Employment Type: Full-Time Salary: Market Competitive About Genesis Code Genesis Code is a modern software development company focused on building scalable, high-quality digital … works with cutting-edge technologies including the MERN stack, TypeScript, cloud platforms, and modern DevOps practices to create reliable, high-performance applications. At Genesis Code, we value clean architecture, strong UI/UX, and scalable systems while fostering a collaborative environment where developers can grow, innovate, and contribute ...

that scale efficiently, perform reliably, and integrate seamlessly across business functions. Lead by example in Azure DevSecOps: create and manage pipelines (YAML), infrastructure-as-code (Bicep, Terraform), and container orchestration (AKS, Docker). Embed engineering best practice: implement CI/CD, code quality gates, automated testing, and observability … Development including ETL/Integration Azure DevOps (Repos, Pipelines, Boards, Artifacts, Test Plans), CI/CD automation, gated releases, and environment governance Infrastructure-as-Code (Bicep, ARM, Terraform) Containerisation (Docker, AKS) and serverless (Azure Functions) Monitoring and observability (Application Insights, Log Analytics) Secrets management and vulnerability scanning (Key Vault ...

quality, cross-platform applications for iOS and Android using React Native and TypeScript . Native familiarity: While you live in JavaScript, experience with native code ( Swift, Kotlin , or Objective-C ) to bridge gaps or debug native modules is a significant plus. Form handling: You have experience building complex forms … ultimately, you know how to build layouts that look and feel great on any screen size. User-obsessed mindset: You don't just write code; you build products. You are passionate about mobile UX , gestures, and animations. Experience with Figma is a plus, helping you bridge the gap between ...

major plus, but ultimately, you know how to translate designs into pixel-perfect reality. User-obsessed mindset: You don't just write code; you build products. You are passionate about the User Experience (UX) . Experience with Figma or similar design tools is a plus, helping you bridge … between design and engineering. Clean code philosophy: You care deeply about the quality of your craft. You strive for simplicity, strictly adhere to DRY (Don't Repeat Yourself) principles, and write code that is readable and maintainable. Collaborative spirit: You are a genuine team player who thrives ...

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 ...

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 ...

REST APIs) Spring Data Spring Security with JWT/OAuth2 Architecture & System Design Deep experience designing and operating microservice‐based architectures Strong application of clean code practices and SOLID principles Ownership of system‐level architecture and cross‐service design decisions Strong understanding of security, authentication flows, and data ...

/LLM concepts (e.g., prompt engineering, RAG). - Analytical mindset for assessing sufficiency (relevance, completeness, freshness) and mitigating risks like hallucinations. - Focus on Clean Architecture and Clean Code principles. Reasonable Adjustments: Respect and equality are core values to us click apply for full job details ...

/LLM concepts (e.g., prompt engineering, RAG). - Analytical mindset for assessing sufficiency (relevance, completeness, freshness) and mitigating risks like hallucinations. - Focus on Clean Architecture and Clean Code principles. Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive ...

Generative AI). Strong data science fundamentals: supervised learning, evaluation metrics, feature engineering, and experimentation. Production-grade Python proficiency and ability to write clean, maintainable code. Comfortable with complex SQL queries. Hands-on experience with AWS (ECR/ECS/EKS, Lambda, S3, IAM, CloudWatch), ideally AWS-certified. Experience ...

complex problems at the intersection of technology, data, and intelligence. We're looking for a Developer who thrives in dynamic environments - someone who loves clean code, scalable architecture, and being part of a team that's pushing boundaries. What you'll do Design, build, and optimize high-performance … Back End systems in Python and FastAPI Develop and maintain Back End systems that handle large volumes of Real Time data Write clean, testable, and maintainable code following best practices Contribute to system architecture decisions and help shape the technical roadmap Take ownership of projects ...

Master’s: 1–2 years of industry experience or relevant internships in ML, software engineering, or data engineering. Programming experience (especially Python) Experience writing clean, maintainable Python code. Applied AI experience such as exposure to LLM APIs (OpenAI, Azure OpenAI, Anthropic, etc.) and experience with small personal or internship ...

disruptors. Youll play a key role in translating design and UX requirements into responsive, high-quality Shopify themes and features balancing performance, scalability, and clean code standards. Key Responsibilities Develop, customise, and maintain Shopify and Shopify Plus storefronts Build custom themes using Liquid, HTML, CSS/SCSS … Lighthouse, GTmetrix) Understanding of CRO principles Exposure to Klaviyo, GA4, or other eCommerce marketing tools What Were Looking For Strong attention to detail and clean coding standards Proactive problem solver with a growth mindset Comfortable working in a fast-paced agency environment Excellent communication skills (written and verbal) Ability ...

across the team to build and deliver high-impact solutions. Essential Skills and Experience Expert-level Python programming skills; strong advocate for PEP8 compliance, clean code, unit testing, and version control (Git, Unix, pytest). Experience retrieving data from structured, unstructured and web sources (Selenium/PlayWright, Pandas … Deliverables: Responsibilities but not limited to: Design and develop reusable, production-ready Python components for AI applications. Translate experimental and proof-of-concept Python code into robust, production-ready applications for seamless integration with engineering and product teams. Write high-quality, well-documented, and testable Python code, ensuring ...

building with LLMs (prompt engineering, RAG, function calling, agent frameworks) • Experience with agent orchestration frameworks (e.g., LangGraph) • Strong software engineering fundamentals such as writing clean code, version control, testing • Excellent communication skills and comfort working in fast-paced, cross-functional teams Preferred qualifications • Experience building voice ...

Permanent role Ready to build Android apps used by millions? Want to work in a modern engineering culture that values clean code, collaboration, experimentation, and real autonomy? If you enjoy solving meaningful problems, shipping high-quality mobile experiences, and working alongside people who genuinely care about craft … design, build, deploy, observe, iterate. They are an AI-enabled engineering organisation, using tools like GitHub Copilot and ChatGPT to accelerate delivery and raise code quality. If you're excited about blending great engineering with smart AI tooling, this is a place to thrive. What you'll be doing ...

pipelines and Data Marts using PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement … rigorous CI/CD, unit testing, and data reconciliation frameworks to ensure "penny-perfect" accuracy. Technical Stack Engine: PySpark (Expert), Python (Clean Code/SOLID principles). AWS: EMR, Glue, S3, Athena, IAM, Lambda. Data Modeling: SCD Type 2, Fact/Dimension tables, Data Vault/Star Schema. ...

pipelines and Data Marts using PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement … rigorous CI/CD, unit testing, and data reconciliation frameworks to ensure "penny-perfect" accuracy. Technical Stack Engine: PySpark (Expert), Python (Clean Code/SOLID principles). AWS: EMR, Glue, S3, Athena, IAM, Lambda. Data Modeling: SCD Type 2, Fact/Dimension tables, Data Vault/Star Schema. ...

complex SAS environments into scalable, AWS-native PySpark pipelines for a major financial services project. What You'll Do Modernize: Convert legacy SAS code into production-ready PySpark using automated tools and manual refactoring. Build: Design and fix high-performance ETL/ELT pipelines and data marts on AWS. … Working Knowledge): Ability to read and debug Base SAS/Macros to translate logic into Python. Engineering: Strong Python skills with a focus on clean code, modular design, and exception handling. Preferred Experience Background in Banking or Financial Services . How to Apply: If you are ready ...

optimisation, and API design will be essential as you contribute to ongoing development projects. If you enjoy collaborating in Agile/Scrum environments, value clean code, and are eager to work with modern tooling, cloud services, and containerised deployments, we’d love to hear from you. Key Skills ...

Contribute to the continuous evolution of our electronic trading infrastructure. Mentorship & Technical Leadership Provide guidance and mentorship to junior developers. Champion engineering best practices, clean code principles and robust design patterns. What Youll Bring Strong hands-on Java development experience within low latency financial systems. Deep understanding ...

Contribute to the continuous evolution of our electronic trading infrastructure. Mentorship & Technical Leadership Provide guidance and mentorship to junior developers. Champion engineering best practices, clean code principles and robust design patterns. What You’ll Bring Strong hands-on Java development experience within low latency financial systems. Deep understanding ...