1 to 25 of 224 Clean Code Jobs in the UK

Principal Software Engineer - International

Hiring Organisation
Marks & Spencer
Location
United Kingdom, UK
technical direction and influence Technology and Product investment decisions, engineering team structures and delivery approaches to ensure sustainable, scalable outcomes.Champion engineering excellence by promoting clean code, clean architecture, automation, DevOps principles and pragmatic engineering practices that improve maintainability, productivity and delivery quality.Drive operational ownership and "you build … software engineering environments, with a proven track record of strategic thinking, technical innovation and successful large-scale delivery.Strong expertise in software engineering fundamentals, including clean code, clean architecture, design patterns, distributed systems and solution design for highly complex, business-critical platforms.Demonstrable experience shaping technology strategy and implementation ...

Senior Software Engineer (Java/Kotlin)

Hiring Organisation
Morgan McKinley
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £595 per day
developers, product managers, and QA specialists. Key Responsibilities End-to-End Delivery: Take ownership across full feature lifecycles, from refining Agile requirements to writing clean code, deploying, and monitoring in production. Core Backend Development: Deliver resilient features using Java or Kotlin, including serverless architecture with AWS Lambda. Code Quality & Testing: Write clean, testable code with a strong emphasis on automated unit testing (supported by embedded QA resources). Cross-Functional Collaboration: Navigate dependencies and communicate blockers clearly to technical and business stakeholders. Technical Requirements Core Stack: Senior-level experience in Java OR Kotlin (experience ...

Full Stack Software Engineer II - Java, React

Hiring Organisation
Appcast
Location
London, UK
through meaningful challenges, strong mentorship, and a culture that rewards curiosity and craftsmanship. Here, you'll work alongside experienced engineers who are passionate about clean code, scalable architecture, and continuous improvement — and you'll have the opportunity to explore emerging technologies like AI and GenAI from day one.As … Software Engineer II at JPMorganChase within [Insert Team Name/Line of Business], you will ship secure, full-stack features, write clean Java code, and deepen your expertise in modern engineering practices — including microservices, event-driven architecture, and CI/CD — while building the foundation for a serious ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£499 - £500/day
Agile teams to translate complex business requirements into reliable, secure, and scalable software solutions. If you are passionate about backend engineering, microservices, and writing clean, efficient code in a fast-paced environment, we want to hear from you! What You Will Do Develop & Innovate: Design, build, test … backend services, and RESTful APIs. Collaborate: Work closely with Architects, Business Analysts, Product Owners, QA, and DevOps engineers throughout the software development lifecycle. Write Clean Code: Translate technical requirements into efficient, maintainable code using Spring Boot and microservices architectures. Ensure Quality: Participate in code reviews, unit ...

Lead Software Engineer- Tax & Legal Technology -108720

Hiring Organisation
KPMG UK
Location
London, UK
mentoring others Programming Skills: Have heavily used modern object-oriented languages such has C# or Java Enterprise Expertise : Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs and have experience of messaging. Data Modelling: Worked with defining data … ASP.NET Core Use front end Typescript/React, ASP.NET MVC or C#/Blazor Cloud Experience: Build cloud first applications with high unit test code coverage on a continuous delivery platform with 100% infrastructure as code Package applications in containers and deploy on Azure Kubernetes Service Data Modelling ...

Lead Software Engineer- Tax & Legal Technology –108720

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
mentoring others Programming Skills: Have heavily used modern object-oriented languages such has C# or Java Enterprise Expertise : Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs and have experience of messaging. Data Modelling: Worked with defining data … ASP.NET Core Use front end Typescript/React, ASP.NET MVC or C#/Blazor Cloud Experience: Build cloud first applications with high unit test code coverage on a continuous delivery platform with 100% infrastructure as code Package applications in containers and deploy on Azure Kubernetes Service Data Modelling ...

Snr Front End Developer

Hiring Organisation
Som3
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Contract
Contract Rate
£50000 - £60000/annum
standards. Ensure cross-browser and cross-device compatibility. Develop and maintain automated component and end-to-end tests using appropriate testing tools. Conduct peer code reviews and help improve development standards and component architecture. Collaborate with back-end developers on API integration and data-fetching approaches. Monitor and optimise … 2.1 AA . Experience optimising web performance and Core Web Vitals. Strong knowledge of responsive design and cross-browser compatibility. A strong understanding of clean code, code reviews and modern development best practices. This is an excellent opportunity for a Senior Front End Developer to take genuine ...

PHP Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
Basingstoke, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
CakePHP. Deliver features across development, testing, and deployment. Maintain and enhance existing and legacy CakePHP applications. Build and support APIs and backend services. Write clean, maintainable code following best practices. Contribute to code reviews, automated testing, and CI/CD. Support system design, integrations, and technical improvements. … CSS. Experience with Git, branching, and pull requests. Familiarity with Docker and Linux/WSL environments. Experience with unit and automated testing. Understanding of clean code, software design principles, and coding standards. Exposure to Vue.js/Nuxt, Azure, CI/CD, messaging, or microservices is a plus. ...

Senior Java Developer

Hiring Organisation
Bright Purple Resourcing
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs, reporting tools and the client portal; bring AI into the development lifecycle; adapt third-party trading systems as the business requires; and write clean, thoroughly tested code grounded in SOLID principles, Design Patterns and Clean Code. You'll also work with microservices and event-driven architectures … cloud platforms such as AWS, Azure or GCP, and infrastructure-as-code tools like Terraform. Testing coverage will rely on JUnit, Spock and Mockito, applying TDD and BDD along the way, and you'll take part in code reviews that help raise the bar across the team. ...

Senior Java Developer

Hiring Organisation
Bright Purple Resourcing
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs, reporting tools and the client portal; bring AI into the development lifecycle; adapt third-party trading systems as the business requires; and write clean, thoroughly tested code grounded in SOLID principles, Design Patterns and Clean Code. You'll also work with microservices and event-driven architectures … cloud platforms such as AWS, Azure or GCP, and infrastructure-as-code tools like Terraform. Testing coverage will rely on JUnit, Spock and Mockito, applying TDD and BDD along the way, and you'll take part in code reviews that help raise the bar across the team. ...

Senior Mobile Developer

Hiring Organisation
Method-Resourcing
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Working with Swift, SwiftUI and UIKit for iOS development Developing Android applications using Kotlin and Java Integrating REST APIs and third party services Writing clean, maintainable and scalable code Taking part in code reviews and contributing to technical decisions Working closely with cross functional teams … Kotlin and Java Publishing applications to both the Apple App Store and Google Play Store REST API integration Mobile application architecture including MVVM or Clean Architecture Git and modern development practices CI/CD pipelines and automated testing Experience with cloud platforms, Firebase, Azure, AWS, Google Cloud or cross ...

Senior Java Developer

Hiring Organisation
MW recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £125,000 per annum
developing and enhancing Java-based applications, APIs and web platforms Customising and extending third-party trading systems Building scalable microservices and distributed applications Writing clean, maintainable, test-driven code using SOLID principles and design patterns Working closely with business stakeholders to translate requirements into technical solutions Participating … architecture discussions, code reviews and continuous improvement initiatives Mentoring and supporting developers while promoting engineering excellence Collaborating with global development teams and contributing to Agile delivery Leveraging AI tools to improve developer productivity throughout the SDLC. About You You'll have strong Java development experience gained within Financial Services ...

Software Development Engineer in Test - DV Cleared

Hiring Organisation
NSD
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
opportunity to work on technically challenging programmes where quality is fundamental to success. The Opportunity Our client is looking for engineers who enjoy writing code as much as they enjoy finding defects. As an SDET, you'll work closely with software engineers, DevOps specialists, architects, and business stakeholders … front-end applications. Integrating automated testing into CI/CD pipelines using tools such as Azure DevOps, Jenkins, or GitHub Actions. Writing clean, maintainable automated tests using Java, Python, C#, or JavaScript/TypeScript. Collaborating with multidisciplinary delivery teams to define effective quality strategies. Investigating test failures, identifying root ...

Lead Developer

Hiring Organisation
Daniel James Resourcing Ltd
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
engineering practices. This is not a people-management role disguised as leadership. You'll still spend the majority of your time designing solutions, writing code, reviewing pull requests and helping solve challenging engineering problems whilst mentoring a team of talented developers. What You'll Be Doing Leading a small … scalable cloud-native applications using modern .NET Building event-driven microservice architectures Collaborating closely with Product, Architecture and Platform teams Driving engineering best practice, clean code and quality standards Coaching and mentoring Software Engineers Contributing to architecture and technical direction Reviewing code and promoting engineering excellence Supporting ...

Senior Java Developer

Hiring Organisation
Synnovate
Location
London, United Kingdom
Employment Type
Permanent
Salary
£115000 - £125000/annum Hybrid Working
maintain in-house systems, APIs, reporting tools and the client web portal Customise and extend third-party trading systems to meet business requirements Write clean, well-tested code following SOLID principles, Design Patterns and Clean Code practices Apply TDD and BDD methodologies; maintain test coverage using … JUnit, Spock and Mockito Participate in code reviews and contribute to continual improvement of engineering standards Manage and mentor a team of Java (and other) developers, supporting growth and career development Liaise with various stakeholders (IT and Business) to understand requirements and propose solutions to senior stakeholders Essential 6+ ...

Software Engineer - Infrastructure and Automation

Hiring Organisation
Appcast
Location
London, UK
enabling scale.Key ResponsibilitiesBuild and maintain internal systems such as job schedulers, monitoring stacks, and automation toolsImprove reliability, repeatability, and self-service across infrastructureWrite clean, efficient code (primarily Go, Python, Bash)Support traditional infrastructure such as servers, switches, and storage systemsParticipate in a shared on-call rota across … hardware environmentsUnderstanding of low-latency or post-trade systemsWhy Apply Work on the internal infrastructure that makes the firm runTackle technical challenges across code, systems, and hardwareHigh autonomy in an engineering-led environmentExposure to large-scale compute, low-latency trading systems, and incredibly talented dev teamsNo legacy drag, just ...

Engineering Manager / Lead Developer (Hands-On) - 1 day onsite

Hiring Organisation
Adele Carr Recruitment Limited
Location
Stockport, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £82,000 per annum
contributing to software design, coding, testing and technical problem-solving. Provide technical leadership across applications built using Java and modern JavaScript technologies. Lead code reviews, solution design sessions and architectural discussions. Work closely with Product Managers and stakeholders to translate business requirements into practical technical solutions. Support the delivery … features, system improvements and platform enhancements. Promote engineering best practices, including clean code, automated testing, CI/CD and secure development. Identify technical risks, remove delivery blockers and improve engineering processes. Balance short-term delivery requirements with longer-term technical quality and platform scalability. Help build a collaborative ...

Lead Java Developer (VP)

Hiring Organisation
Citigroup
Location
Belfast, UK
over technology decisions. We own the continuous delivery pipeline through to production and strive to release frequently into production.Responsibilities:Define the architecture, design, development, code review, pairing, testing, and maintenance of applications.Design and implement scalable applications and services with a solid focus on quality, continuous integration, deployment, observability, metrics … monitoring.Write testable code following clean coding and SOLID design principles, instilling best engineering practices across the wider firm.Perform code reviews and contribute to the overall quality, maintainability, and testability of software developed.Adapt to changes in priorities and requirements.Work closely with clients and stakeholders (e.g., Front Office, Quants ...

Engineering Manager

Hiring Organisation
Adele Carr Recruitment Limited
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum
contributing to software design, coding, testing and technical problem-solving. Provide technical leadership across applications built using Java and modern JavaScript technologies. Lead code reviews, solution design sessions and architectural discussions. Work closely with Product Managers and stakeholders to translate business requirements into practical technical solutions. Support the delivery … features, system improvements and platform enhancements. Promote engineering best practices, including clean code, automated testing, CI/CD and secure development. Identify technical risks, remove delivery blockers and improve engineering processes. Balance short-term delivery requirements with longer-term technical quality and platform scalability. Help build a collaborative ...

Software Engineer

Hiring Organisation
Anson Mccade
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£60,000
stack environments Building scalable cloud-native applications using modern engineering practices Working closely with cross-functional teams to deliver high-quality digital products Championing clean code, performance, security, accessibility and maintainability Mentoring junior engineers and supporting technical leadership within delivery teams Contributing to architecture decisions, code reviews … experience with the following technologies: Java, Python, Go or TypeScript React, Angular, Vue or SvelteAWS, Commercial experience with AWS, Azure or GCP Infrastructure as Code (Terraform, AWS CDK or Pulumi) CI/CD tooling such as GitHub Actions, GitLab CI, Jenkins, CircleCI or ArgoCD Strong understanding of software security ...

Lead Software Engineer

Hiring Organisation
Anson Mccade
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£75,000
stack environments Building scalable cloud-native applications using modern engineering practices Working closely with cross-functional teams to deliver high-quality digital products Championing clean code, performance, security, accessibility and maintainability Leading a team of engineers and supporting technical leadership within delivery teams Contributing to architecture decisions, code … 5+ years' commercial experience with the following technologies: Java, Python, Go or TypeScript React, Angular, Vue or Svelte AWS, Azure or GCP Infrastructure as Code (Terraform, AWS CDK or Pulumi) CI/CD tooling such as GitHub Actions, GitLab CI, Jenkins, CircleCI or ArgoCD Strong understanding of software security ...

Senior & Principal Java Camunda Enigneers

Hiring Organisation
Casci
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
sales activity, and the growth of our engineering practice. This is an ideal role for someone who enjoys solving complex process problems through clean code, automation, and modern engineering practices. Key Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based … 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 Support migration of legacy process platforms to Camunda 8/Zeebe where applicable Contribute to Cascis internal ...

Forward Deployed Engineer

Hiring Organisation
MarkIT Placements
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
outcome . The role would suit an experienced engineer who is operating at the forefront of AI development and is equally comfortable writing production code, challenging a product strategy, presenting to senior stakeholders and working directly with clients. How You'll Work The role is built around three core … Develop prompt and context engineering approaches focused on accuracy, reliability, cost and latency. Make structured use of AI-assisted development tools such as Claude Code, Cursor, GitHub Copilot and Codex . Fine-tune or adapt models where there is a genuine use case. Production & Engineering You'll own solutions ...

Software Engineer III - Full stack Java

Hiring Organisation
Appcast
Location
Glasgow, UK
enterprise architecture standardsBuild and evolve well-designed REST APIs, applying strong microservices patterns, core design principles, and pragmatic tradeoffs appropriate for regulated enterprise environmentsWrite clean, testable, and maintainable code with a disciplined approach to quality, including automated testing and active participation in peer code reviews and collaborative … common components that improve consistency and accelerate delivery across the teamLeverages enterprise-authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity (e.g., code generation/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure ...

Systems Developer

Hiring Organisation
Massenhove Recruitment Limited
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
software solutions that support our clients business systems, data pipelines, and automation initiatives. This is an excellent opportunity for a developer who enjoys writing clean, efficient code and wants to contribute to projects with real business impact, including data integration, workflow automation, and system modernisation. What the ideal … Design, develop, test, and maintain Python applications, scripts, and services Build and maintain APIs and integrations with third-party systems and internal platforms Write clean, well-documented, and testable code following best practices (PEP 8, SOLID principles) Collaborate with cross-functional teams (product, data, QA, operations) to translate ...