1 to 25 of 309 Permanent Clean Code Jobs in the UK

modern, scalable backend services and APIs that support complex, high-performing systems used across the UK. You'll join a collaborative environment where clean code, Test Driven Development and strong engineering principles are at the core of delivery. What you'll do Design, develop and maintain backend applications … RESTful APIs using Java and Spring Boot Follow Test Driven Development practices to ensure robust and maintainable code Containerise applications using Docker and work within cloud-based environments Collaborate closely with Frontend, QA and DevOps teams to deliver complete solutions Participate in code reviews, design discussions and agile ...

shaping the future of their highly valuable sector. Their platform is built on cutting-edge technologies, and they are scaling fast. They believe in clean code, strong ownership, and empowering their engineers to build with purpose. Now, they're looking for a Senior Java Developer with exceptional Java … design and architecture decisions for scalable, secure, and performant systems Collaborate cross-functionally with Product, Design, and DevOps to deliver high-impact features Conduct code reviews, establish coding standards, and promote engineering best practices Continuously improve team workflows and development processes What They're Looking For Good expertise ...

/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high … Deploy and manage services in AWS with Kubernetes (EKS) Design, implement, and own features end-to-end from discovery to production support Advocate for clean code, automated testing, and CI/CD best practices Mentor other engineers and contribute to a culture of knowledge-sharing Collaborate with cross ...

performance user interfaces that connect seamlessly with complex backend systems and deliver an exceptional user experience. You'll join a collaborative environment that values clean code, Test Driven Development and strong technical ownership. What you'll do Develop and maintain user-facing features using React.js Build reusable components … front-end libraries for long-term scalability Translate design concepts into high-quality, responsive code Optimise applications for speed, performance and accessibility Collaborate with designers and backend engineers to deliver cohesive solutions Follow Test Driven Development practices and contribute to code reviews Stay current with modern frontend practices ...

primarily on the backend, developing and enhancing a core enterprise migration platform built in .NET/C#. The role has a strong focus on clean code, testing, and modern engineering practices, with exposure to large-scale, data-heavy systems.What You'll Be Doing:* Building and maintaining modern .NET …/C# applications* Writing high-quality, testable code (unit tests, Git, CI/CD)* Supporting data-intensive platforms and migration projects* Working closely with Data Engineers to understand data flows* Developing and maintaining integrations and connectors* Collaborating daily with US-based stakeholders and engineersWhat They're Looking For Essential ...

build scalable applications that make a real difference in the healthcare sector. This role suits someone who enjoys working across the full stack, delivering clean, performant code, and collaborating with engineering, data, and clinical technology teams. What You’ll Be Doing Building full-stack applications using MongoDB, Express.js … . Working with MongoDB for data modelling, indexing, and performance optimisation. Ensuring security best practices — especially relevant for healthcare systems. Participating in Agile ceremonies, code reviews, and platform improvement sessions. Debugging, troubleshooting, and enhancing system reliability and performance. Collaborating with product managers, UX designers, QA, and DevOps teams. Tech ...

depend on daily. Work with modern technologies – microservices, containers, TypeScript, and a choice of leading JS frameworks. Build things right – unit and integration testing, clean code, peer reviews, and sensible Agile practices. Be part of a thoughtful team – collaborate with engineers, product owners, and designers in a supportive … documenting REST APIs across distributed systems. Collaborating closely with other engineers and stakeholders in an Agile environment. Writing well-tested, secure, and maintainable code — with a focus on quality. Helping evolve internal practices around performance, reliability, and security. Contributing to CI/CD pipelines and dev tooling for smooth ...

design and delivery of Retrieval-Augmented Generation (RAG) solutions using vector databases such as Pinecone or Weaviate . Develop Production-Ready Services Write clean, maintainable code in Python and/or JavaScript , contributing to microservices and APIs that meet performance, security, and reliability standards. Work Cloud-First Deploy … Azure , using containerisation and CI/CD pipelines. Collaborate & Learn Work closely with Lead AI Engineers and Architects, contributing to design discussions, code reviews, and internal knowledge sharing. Apply AI-Assisted Engineering Responsibly Use tools such as GitHub Copilot, Cursor, or Claude Code to improve productivity while maintaining ...

cross-functional agile team with designers, cloud engineers, and product specialists Integrating APIs and contributing to robust CI/CD pipelines Writing clean, testable code with strong unit test coverage Identifying opportunities for optimisation, automation, and improved engineering processes Supporting and mentoring colleagues, contributing to an open, forward … performance, security, and modern engineering patterns Desirable Skills Docker and container-based development Backend API development exposure Experience with continuous delivery pipelines Passion for clean code, modern tooling, and engineering innovation If you're driven by complex technical challenges, love working with modern frameworks, and want to build ...

technical direction and architecture for key backend services Designing, building and evolving scalable Java and Kotlin microservices Driving best practices around TDD, BDD and clean code Leading code reviews and setting high engineering standards Decomposing complex monolithic systems into modern distributed architectures Partnering with product, platform ...

scaling its engineering function to support major new product initiatives. They’re now looking for a .NET Software Developer who enjoys modern Microsoft technologies, clean code, and building high-performing, scalable applications. This role is perfect for someone who wants technical ownership, the chance to shape solutions … .NET 6+ , and ASP.NET Core . Building APIs and microservices that power complex software products. Working with Azure services and cloud-native patterns. Writing clean, secure, and maintainable code following best practices. Collaborating closely with Product Owners, QA, DevOps, and other developers. Contributing to architectural discussions and influencing ...

becoming a bottleneck: ask good questions, challenge assumptions, and enable high-quality technical decisions. Champion and embed modern engineering practices, including: TDD/BDD, Clean Code, pair and mob programming. Automated testing at multiple levels (unit, integration, end-to-end, performance). Secure SDLC practices – security considered from … automated testing (unit to end-to-end) using common tools. Cloud platforms (Azure and/or AWS), containers (Docker/Kubernetes) and infrastructure-as-code tools (e.g. Terraform, Ansible). Monitoring, logging and performance analysis (e.g. ELK stack or similar). AI and automation Strong, practical experience with ...

undertaking a bold technology transformation through improved working processes and modernising systems. Were looking for a hands-on (still happy to build/code) Head of Engineering to lead this change from the front who is a full-stack technologist who codes with confidence, architects with foresight, and inspires … 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 ...

launching additional markets. This is a hands-on role for someone who understands the real-world complexities of global commerce and cares about craft: clean, maintainable code; thoughtful UI/UX delivery; and performance that holds up as traffic, catalogue, and complexity grow.You will collaborate closely with … commerce, Marketing, Creative, and Operations, translating designs into fast, accessible, conversion-friendly experiences. You will work within agile delivery, using code pipelines and disciplined engineering practices to ship changes confidently and avoid spaghetti code. Key Responsibilities Build and maintain Shopify Plus storefronts across a multi-store, multi-market setup ...

building and scaling our financial operations platform. This is a hands-on, high-impact position where you will be directly responsible for delivering clean, scalable, and high-performance code. You will work closely with product managers, designers, and other engineers to solve complex problems and create intuitive solutions that … working with databases (SQL and NoSQL), APIs, and web technologies. Experience with cloud platforms (AWS, GCP, Azure) Solid understanding of software engineering principles, including clean code, testing, and version control (git). Strong problem-solving skills and the ability to break down complex technical issues and deliver simple ...

strong background in architecting robust single-page applications (SPAs), we want to hear from you. Key Responsibilities Lead technical design discussions and code reviews, promoting clean code and modular architecture. Implement solutions using Angular (v16+), AngularJS, and TypeScript. Testing strategies with tools like Cypress to ensure quality ...

hands-on role for someone who enjoys solving complex problems, working in a microservices environment, and contributing to architectural decisions. The team values clean code, automation, and continuous improvement-and they're looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer … payment providers, and internal tools. Contribute to CI/CD pipelines, infrastructure automation, and DevOps practices. Promote engineering best practices across testing, documentation, and code quality. Stay up-to-date with emerging technologies and bring innovative ideas to the team. Skills & Experience needed: Essential: Strong experience with Node.js ...

cloud-based architecture. You’ll be working alongside senior engineers on scalable, resilient systems that support business-critical platforms, with a strong emphasis on clean code, performance, and reliability. Key Responsibilities Design, develop, and maintain backend services using Java and Golang Contribute to the build and evolution … microservices-based systems Develop and maintain APIs and distributed services Collaborate with architects, engineers, and product teams on solution design Ensure code quality through testing, reviews, and best practices Support performance, scalability, and security requirements Work within Agile delivery teams Required Skills & Experience 5+ years of commercial software development ...

Scope by Level Java Developer (£50,000 - £60,000) Solid Java experience and a desire to grow within complex systems Comfortable contributing to production code within Agile teams Keen to develop skills in testing, modern tooling, and cloud technologies Senior Java Engineer (£60,000 - £70,000) Strong experience delivering … features end-to-end Advocate for clean code, TDD and XP practices Enjoys mentoring, pairing and raising engineering standards within the team Principal Java Engineer (£70,000 - £85,000) A hands-on senior engineer who combines technical leadership with coaching Still actively coding as part of a Scrum ...

backend, QA, and DevOps teams in a highly collaborative, remote first engineering culture. This is a hands on role for someone who cares about clean code, great UX, and building products that scale . What You’ll Be Doing Designing and building modern web applications using React, TypeScript … HTML, and CSS Creating responsive, cross browser user interfaces with a strong focus on usability Writing testable, maintainable code with unit and integration tests Collaborating with backend engineers on API contracts and data integration Working with DevOps on CI pipelines , containerisation, and deployment workflows Managing dependencies and ensuring application ...

their product-focused delivery teams. This role is well suited to an experienced backend engineer who enjoys working on modern systems, values clean code and testing, and wants to be part of a collaborative, Agile engineering environment. The Opportunity You'll be part of a cross-functional delivery … Designing, building, and maintaining backend services using C# and .NET Collaborating with project management to translate requirements into well-structured technical solutions Writing clean, maintainable, and well-tested code following best practices Implementing automated unit and integration tests to ensure system reliability Working effectively within an Agile/ ...

that meet healthcare-grade quality and compliance expectations. Drive Engineering Excellence Build scalable microservices and platforms using Python and/or JavaScript , following TDD, Clean Architecture, and SOLID principles . Ensure systems are resilient, observable, secure, and designed for long-term maintainability. Contribute to architectural decisions across multiple client … engagements. Innovate with AI-Assisted Engineering Use AI-assisted development tools such as Claude Code, Cursor, and GitHub Copilot in a structured, disciplined way. Balance accelerated delivery with robust code quality, documentation, and test coverage. Help define internal best practices for responsible and effective AI-assisted development. Consult ...

mentor and collaborate effectively within a team Desirable Extras: Experience with Docker and backend API development Exposure to continuous delivery environments Passion for clean code and modern development practices If you're ready to take the next step in your career and work on projects that truly make ...

Cheshire Free food & drink :) Were looking for a Software Developer to join our global client within the hospitality sector - someone whos passionate about writing clean, scalable code and excited to influence how they develop and deliver technology. Youll be joining a fast-paced, forward-thinking, people-first company … life assurance Exclusive discountson entertainment, leisure, and travel What Youll Be Doing... Designing, developing, testing and deploy high-quality, scalable software solutions Championing code quality, performance, and security Collaboratingin agile teams, translating business needs into functional tech Writingautomated tests and following best practices to ensure maintainability Providingsupport andtroubleshooting technical ...

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 ...