1,351 to 1,375 of 2,043 Clean Code Jobs in the UK

Front End Developer. Key Responsibilities: Develop, test, and maintain software applications using React, React Native, and related technologies. Troubleshoot, debug, and optimise applications to ensure performance and reliability. Write clean, scalable, and efficient code following industry best practices. Build responsive and performant web applications. Manage and direct Senior Developers Core Technical Skills Required: Strong experience with React and … React Native (including hooks like useEffect, useState) Familiarity with TypeScript and strict typing for maintainable code Comfortable working with REST APIs Axios and fetch Experience with state management tools like Context API Strong experience with Optimisation (useMemo, useCallback) Knowledge of React Query Understanding of component-based architecture and clean code structure (e.g. Atomic Design) Testing experience with More ❯

and maintain Workflows, Flow Designer flows , and Integration Hub spokes . Support custom integration development using REST, SOAP, MID Server, Kafka, etc. Translate architecture and design into working, optimized code aligned with platform best practices. Performance Optimization Conduct profiling and debugging of scripts, workflows, and queries to identify performance bottlenecks. Optimize GlideRecord usage, ACL performance, indexing , and background jobs. … Collaborate with the architect to implement performance improvement recommendations . Technical Debt & Code Quality Participate in identifying and addressing technical debt in existing modules and custom applications. Perform and respond to code reviews , refactor, and optimize logic where needed. Maintain clean, reusable, and modular code following defined standards and naming conventions. Demo & Instance Readiness Prepare and … validate instance readiness for feature demos and UATs (data prep, role mapping, test cases). Ensure the instance is clean, with demo-specific configurations and no test pollution . Agile, Collaboration, and Demo Readiness Familiarity with Agile/Scrum methodologies and participation in ceremonies. Collaborate closely with BAs, Product Owners, and Developers to ensure business alignment. Lead and support More ❯

delivering a high performance app and great user experience. You approach should deliver scalable, reusable components and front-end libraries Translating UI designs and UX wireframes into high-quality code Optimising components for maximum performance and user experience Working with native modules when required Testing and release to iOS and Google Play stores Code review and debug activities. … a software engineer working in a mobile development role. You’ll have demonstrable hands-on experience of delivering React Native apps to best practice standards. You will ideally value clean, readable and re-usable React-Native code. You’ll be passionate about software and an advocate of general engineering best practices such as domain-driven code architecture, encapsulation … separation of concerns, single responsibility, clean code practices, etc. You’ll have an excellent understanding of iOS and Android platform fundamentals. You’re familiar with the latest design patterns for mobile development like MVC frameworks. Experience with any of the following would be advantageous – Redux, RESTful APIs, MSSQL & relational databases, GitHub, automated test suites like Mocha, Jest, etc. More ❯

Custom Apps, Modules, UI Policies, Business Rules, and Client Scripts. Implement and maintain Workflows, Flow Designer flows , and Integration Hub spokes . Translate architecture and design into working, optimized code aligned with platform best practices. Performance Optimization Conduct profiling and debugging of scripts, workflows, and queries to identify performance bottlenecks. Optimize GlideRecord usage, ACL performance, indexing , and background jobs. … Collaborate with the architect to implement performance improvement recommendations . Technical Debt & Code Quality Participate in identifying and addressing technical debt in existing modules and custom applications. Perform and respond to code reviews , refactor, and optimize logic where needed. Maintain clean, reusable, and modular code following defined standards and naming conventions. Demo & Instance Readiness Prepare and … validate instance readiness for feature demos and UATs (data prep, role mapping, test cases). Ensure the instance is clean, with demo-specific configurations and no test pollution . Agile, Collaboration, and Demo Readiness Familiarity with Agile/Scrum methodologies and participation in ceremonies. Collaborate closely with BAs, Product Owners, and Developers to ensure business alignment. Lead and support More ❯

and its evolution. Build end-to-end features (Python) from scratch. Resolve critical production issues promptly. Develop test infrastructures, write documentation, and ensure high performance. Follow development best practices (Clean Code, Clean Architecture, code reviews). Communicate actively with stakeholders, team members, and clients. Valued Skills and Experience Strong proficiency in Python with at least More ❯

the go-to expert for all things UI, working at the heart of a team that’s scaling fast and building for the future. If you're passionate about clean code, slick interfaces, and driving innovation, this one’s for you. Why this role stands out: Own the UI – You’ll shape internal libraries/tools/design … need: 6+ years of frontend experience with deep expertise in React and TypeScript Strong knowledge of JS component libraries, and modern frontend tooling - Next.js is a plus! Passion for clean, scalable code and a strong testing culture Experience working with design systems and performance optimization Bonus: Exposure to Node.js, monorepos, or open-source contributions BSc in Computer Science More ❯

business stakeholders (tech & non-tech) to deliver smart, scalable reporting and data solutions Migrating and modernising ETL processes and data warehouses for reporting and monetisation Creating well-documented, efficient code in SQL and Python Implementing QA processes and supporting the business with both regular and ad hoc data deliverables 🛠 Tech you’ll work with: SQL Server (SSIS, SSRS, SSAS … PowerPivot, VBA, lookups, advanced formulas) 🌱 You’ll also: Collaborate closely with our Data Engineers and Product Owner Own your solutions end-to-end, from design through deployment Help ensure clean, scalable, and well-tested code Drive automation that saves time and cost across the business Contribute to a data culture where quality, collaboration, and impact come first 🎯 What … in a quantitative discipline 🤝 Why Reward? You’ll join a high-growth, high-impact environment where your work directly supports strategic decision-making and product innovation. We believe in clean code, open collaboration, and building best-in-class data infrastructure that scales with us. 📍 London | Hybrid 🛫 Must have the right to work in the UK 💬 We’re a More ❯

business stakeholders (tech & non-tech) to deliver smart, scalable reporting and data solutions Migrating and modernising ETL processes and data warehouses for reporting and monetisation Creating well-documented, efficient code in SQL and Python Implementing QA processes and supporting the business with both regular and ad hoc data deliverables 🛠 Tech you’ll work with: SQL Server (SSIS, SSRS, SSAS … PowerPivot, VBA, lookups, advanced formulas) 🌱 You’ll also: Collaborate closely with our Data Engineers and Product Owner Own your solutions end-to-end, from design through deployment Help ensure clean, scalable, and well-tested code Drive automation that saves time and cost across the business Contribute to a data culture where quality, collaboration, and impact come first 🎯 What … in a quantitative discipline 🤝 Why Reward? You’ll join a high-growth, high-impact environment where your work directly supports strategic decision-making and product innovation. We believe in clean code, open collaboration, and building best-in-class data infrastructure that scales with us. 📍 London | Hybrid 🛫 Must have the right to work in the UK 💬 We’re a More ❯

transformative: to empower financial professionals with tools that make their jobs easier, their clients happier, and their businesses more efficient. We're a friendly, fast-moving team that values clean code, clever solutions, and collaboration over red tape. We’re growing quickly and looking for someone who wants to grow with us, not just as a developer, but … other engineers, product designers, and stakeholders to build features that users genuinely love. What you’ll be doing Developing and maintaining features in our Laravel-based API platform Writing clean, testable, and efficient PHP code Creating and consuming REST APIs Collaborating with front-end developers and designers to deliver seamless experiences Improving application performance, scalability, and reliability Conducting … code reviews Keeping up with Laravel ecosystem updates and sharing knowledge with the team What we’re looking for 5+ years of PHP experience, with 3+ years in Laravel Strong knowledge of OOP, MVC, and Laravel best practices Experience working with MySQL and database optimisation Experience with Docker and containerised infrastructure Familiarity with Git, CI/CD tools, and More ❯

excellent benefits + strong culture Why This Role? This is more than just people management. You’ll be the strategic force behind a talented engineering department — guiding performance, championing clean code, and fostering a culture of collaboration and continuous improvement. You will not be hands-on coding, but your technical insight — especially in TypeScript — will be key to … culture Encouraging innovation, scalability, and secure development Cultivating a positive, inclusive, and high-performing team environment What You Bring A strong background in software development with a passion for clean, maintainable code Deep understanding of SOLID principles, design patterns, and scalable architecture Experience leading teams in a SaaS environment Familiarity with high-throughput data systems and DevOps practices More ❯

on a modern, AI-enabled and cloud-native platform used by some of the UK’s most recognisable brands. About the Role If you enjoy solving complex problems, building clean and scalable code, and working across both front-end and back-end, this role is for you. Responsibilities Building responsive, high-quality features using Vue.js, Knockout.js, and SQL … Collaborating with designers and developers to deliver seamless user experiences Writing clean, maintainable code and contributing to system architecture Optimising performance across both client and server-side applications Qualifications Strong JavaScript skills and experience with modern frameworks Solid SQL knowledge and experience with relational databases Understanding of API integration and data flow A pragmatic, problem-solving mindset and More ❯

Cambridge office and happy to collaborate in person a few times a week. What You’ll Do Develop and maintain Android applications using Java and Kotlin Design and implement clean, functional, and visually polished user interfaces Deliver intuitive, user-friendly experiences Write clean, maintainable code and participate in code reviews Support CI/CD pipelines and More ❯

occasionally mumble to yourself in YAML. Bonus points if you enjoy debugging flaky CI pipelines while caffeinated. You’ll: Build modern, beautiful web apps and robust backend services Write clean code, test it properly, and ship with confidence Collaborate with designers, PMs, and fellow engineers who speak fluent emoji Help define best practices, review code, and drive … but to handle stakeholders and design tasks – ie taking accountability for the build. Solid CI/CD chops (GitHub Actions is a plus) A love of good UX and clean architecture CompSci or STEM background from a Top University with >5 yrs experience. Educated either to a 1st class or 2:1 degree level or have significant experience and More ❯

coding with Python, Java, C#, and more Collaborate on real software builds Participate in Agile development cycles Learn about version control (Git) Exposure to backend APIs and databases Write clean, maintainable code Debug and test existing systems Team-based and individual projects Certificate and industry-level mentoring Paid & unpaid positions available More ❯

Pets at Home and help us build exceptional digital experiences for pet lovers across the UK. Were looking for a Senior Frontend Developer whos passionate about performance, accessibility and clean, scalable code. The role offers hybrid working from our Support Office in Handforth, Cheshire. What Youll Do: Build and optimise modern web applications using React, Next.js, and TypeScript Lead … and design within your squad Champion accessibility and performance best practices Write robust unit and end-to-end tests (Jest, Playwright/Cypress) Mentor developers and drive high-quality code through reviews Collaborate with cross-functional teams to deliver impactful features What You Bring: Extensive frontend development experience Deep knowledge of React, Next.js, SSR/SSG and modern frontend … architecture Strong testing skills and experience with Storybook and cloud platforms (Azure a plus) A passion for clean code, collaboration and continuous improvement Tech: Microsoft Azure | React | Typescript | Next.js | Jest | Storybook | Playwright | Cypress | Server Side Rendering (SSR) | Static Generation (SSG) We take our inspiration from pets in embracing people from all walks of life, and we value, respect More ❯

will be responsible for developing mobile applications for customers, each customer will have a tailored application developed by you and your team. In this role, You will own the code base and develop high-quality and scalable code using React Native framework. You will be joining a team of two, this team is remote so you must be … a self starter and be a strong communicator to apply for the position. To really thrive in this role you must be able to write clean JavaScript code and have the ability to work with third-party dependencies and be able to debug dependency conflicts. Who You'll Be An enthusiastic, self starter and excellent communicator. A collaborative More ❯

You'll join a squad of 5 (developers, tech lead, PM) working on a high-growth platform. Your responsibilities include designing and developing new features, ensuring clean and scalable code, and contributing to technical decisions and product quality. Tech & Culture PHP 8/Symfony Docker/CI/CD pipelines AWS/OVH Redis, RabbitMQ, ElasticSearch Strong product More ❯

will be responsible for developing mobile applications for customers, each customer will have a tailored application developed by you and your team. In this role, You will own the code base and develop high-quality and scalable code using React Native framework. You will be joining a team of two, this team is remote so you must be … a self starter and be a strong communicator to apply for the position. To really thrive in this role you must be able to write clean JavaScript code and have the ability to work with third-party dependencies and be able to debug dependency conflicts. Who You'll Be An enthusiastic, self starter and excellent communicator. A collaborative More ❯

with a well recognised and established software business looking to add skilled C# Developers to their collaborative development team. This is a great opportunity for someone who enjoys writing clean code, contributing to a quality product, and working in a grown-up environment where autonomy is trusted. You’ll be part of a close-knit team where your … real difference. The business has been serving an international client base for over 20 years, with a strong reputation and a stable customer base. The Role Writing high-quality code using C#, Entity Framework, and SQLInvolved in developing new features and solving problems across the platformContributing to a product that incorporates AI features and is continually evolvingJoining regular team … catch-ups (roughly every quarter in the Aberdeen based office) Duties Writing high-quality code using C#, Entity Framework, and SQL Involved in developing new features and solving problems across the platform Contributing to a product that incorporates AI features and is continually evolving Joining regular team catch-ups (roughly every 6-8 weeks in person in Aberdeen) Key More ❯

develop tools and systems that support real-time investment decisions. You'll be responsible for building and maintaining the full analytics stack - from ingesting and transforming data to delivering clean, responsive front-end applications. The role offers strong exposure to trading workflows and a chance to make a direct impact on portfolio management. Key responsibilities: Optimise and extend core … back-end systems that support continuous, high-availability analytics Design and implement data pipelines to clean, normalise, and structure financial datasets Build responsive, informative front-end tools using React to support decision-making on the trading desk Collaborate with Portfolio Managers to scope and deliver high-impact tools and applications Manage data ingestion from multiple sources, ensuring consistency, accuracy … Python, including data libraries such as pandas, numpy and scipy Experience building front-end applications in React or a similar framework Solid understanding of modern software engineering practices and clean code principles Comfortable working in a fast-paced environment with evolving requirements Interest in financial markets and enthusiasm for working closely with a trading team Degree in Computer More ❯

responsibilities Collaborate with project managers and team members to interpret technical requirements and convert them into development tasks. Design, develop, and maintain backend applications using C# and .NET. Write clean, efficient, and maintainable code in adherence to best practices and coding standards. Develop and maintain unit and integration tests to ensure code quality and system reliability. Participate … in code reviews and offer constructive feedback to improve code consistency and maintainability. Requirements At least 3 years of professional experience in backend development. Strong proficiency in .NET (C#) and SQL. Experience with GitHub and package management tools. Solid understanding of software development principles, design patterns, and best practices. Desirables Degree in Computer Science or related field Experience More ❯

AWS cloud environment Automating everything – CI/CD pipelines, monitoring, infrastructure provisioning Collaborating with developers and other engineers to streamline deployments and workflows Managing AWS services Championing Infrastructure as Code (IaC), observability, and DevOps principles Strong experience with AWS services and hands-on Terraform scripting Deep understanding of DevOps culture , CI/CD pipelines, and container technologies (Docker, Kubernetes … a plus) Solid grasp of cloud security, networking, and performance tuning A passion for clean code, collaboration, and continuous learning **Active SC Clearance Required** Next Steps If you are interested in this opportunity, hold active SC Clearance, and would like to learn more, please apply with your up to date CV and I will endeavour to get back More ❯

to test products. This unique and challenging role offers the opportunity to design and develop extensive testing tools, combining software design engineering with software test engineering. You will write code that automatically verifies product functionality and identifies issues, often writing more code than the developers themselves. We encourage you to continuously evolve and improve your skills. Key job … responsibilities Design and build automated test frameworks and test suites for development and testing cycles. Use innovative test technologies to develop testing strategies for products. Participate in design and code inspections. Perform manual testing covering all functionalities of services as a prelude to automation. BASIC QUALIFICATIONS BS degree in Computer Science from a reputed institution with 5+ years of … core development experience as a Software Engineer. Understanding of computer science fundamentals and data structures. Strong analytical and problem-solving skills. Proven ability to write clean, efficient code quickly. Understanding of QA methodologies, lifecycle, and processes. Experience in developing testing frameworks and automation tools is preferred. PREFERRED QUALIFICATIONS Excellent communication skills across functions and management levels in both More ❯

within a global powerhouse brand! You’ll help design, develop and scale custom web platforms that power operational excellence across the region – all within an Agile environment that values clean code, strong architecture, and impactful delivery. 💡 What you'll be doing: Build engaging, user-first digital platforms using Angular (v16) and Tailwind CSS Work with Project Managers to … scope, plan and deliver on sprint cycles Translate business needs into clean, scalable code with strong UI/UX thinking Collaborate with other devs to continuously improve practices and reduce tech debt Support delivery of wider transformation initiatives in partnership with stakeholders 🙌 What you’ll bring: 3+ years of experience developing internal or B2B platforms Advanced proficiency in More ❯

for payment systems Implement secure payment protocols Support the team in developing real-time transactions processing Work closely with cross-functional teams to deliver feature requirements Maintain and write clean and well-tested code following best practices Get involved in code reviews and maintain high code quality standards Contribute to system architecture and technical design decisions More ❯