1 to 25 of 192 Clean Code Jobs in the UK

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 ...

Staff Software Engineer

Hiring Organisation
BP Energy
Location
South West London, London, United Kingdom
product leads and other technical leads to understand requirements, estimation and help refine roadmap. Raise the technical bar for the team both in code quality as well as testing coverage, monitoring and observability. Deliver customer value iteratively, serve as a technical lead, and own projects end-to-end. Communicating … with internal and external teams to bring new platforms to market are key responsibilities. Maintain and enhance software frameworks, mentor other engineers, participate in code reviews, and resolve platform-related issues. Support and assist during production issues. Support audit teams for security, software licensing, and regulatory audits, and implement ...

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
City of London, Greater 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 ...

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 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 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+ ...

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 ...

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 ...

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 ...

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 ...

Lead Software Engineer

Hiring Organisation
Sanderson Government & Defence
Location
Cheltenham, England, United Kingdom
messaging platforms Background in Agile DevSecOps environments and Zero Trust architectures Experience integrating with services such as PostgreSQL, Redis and S3 Solid engineering fundamentals: clean code, testing, documentation, code reviews and continuous delivery Comfortable using GitHub, GitLab and Atlassian tools Strong TDD experience Hands‐on experience with ...

Lead Software Engineer - Secure Environment

Hiring Organisation
Sanderson Government and Defence
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
messaging platforms Background in Agile DevSecOps environments and Zero Trust architectures Experience integrating with services such as PostgreSQL, Redis and S3 Solid engineering fundamentals: clean code, testing, documentation, code reviews and continuous delivery Comfortable using GitHub, GitLab and Atlassian tools Strong TDD experience Hands-on experience with ...

.NET Developer/ Greenfield

Hiring Organisation
Reed
Location
Newcastle Upon Tyne, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £57,000 per annum, Inc benefits
using C# and .NET Contribute to the architecture and development of a microservices-based system Apply strong object-oriented programming principles, including polymorphism and clean code practices Help build and optimise infrastructure-as-code (IaC) environments Work closely with DevOps practices, including CI/CD pipelines Collaborate … with cross-functional teams to define and deliver features Contribute to technical decisions in a greenfield environment Ensure code quality through testing, reviews, and best practices Required Skills & Experience Solid experience developing with C# and modern .NET (Core/.NET 6+) Strong understanding of microservices architecture Good knowledge ...

NET Developer/ Greenfield

Hiring Organisation
Reed Technology
Location
Newcastle upon Tyne, Tyne and Wear, Tyne & Wear, United Kingdom
Employment Type
Permanent
Salary
£50000 - £58000/annum
using C# and .NET Contribute to the architecture and development of a microservices-based system Apply strong object-oriented programming principles, including polymorphism and clean code practices Help build and optimise infrastructure-as-code (IaC) environments Work closely with DevOps practices, including CI/CD pipelines Collaborate … with cross-functional teams to define and deliver features Contribute to technical decisions in a greenfield environment Ensure code quality through testing, reviews, and best practices Required Skills & Experience Solid experience developing with C# and modern .NET (Core/.NET 6+) Strong understanding of microservices architecture Good knowledge ...

Java Engineer

Hiring Organisation
Anson Mccade
Location
Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£45,000
REST APIs and microservices. Work closely with developers, testers and architects throughout the software development lifecycle. Contribute to Agile ceremonies including sprint planning and code reviews. Follow best practices including clean code, CI/CD and version control. Support the delivery of high-quality, scalable software solutions. ...

Principle Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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. 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 Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided ...

Principal Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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. 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 Contribute to their internal best-practice frameworks and automation accelerators Essential Eligible (have resided ...

Lead FDE Production & Consulting

Hiring Organisation
Newpage Solutions
Location
City Of Bristol, England, United Kingdom
builder-first individual-contributor role with genuine product and commercial ownership. It suits engineers who live at the current edge of AI development—Claude Code, Cursor, agents, eval harnesses, MCP ,modern TypeScript and Python—and who are equally at home at a whiteboard in front of a client … conversation; have a working prototype to react to by the end of the week. Build modular backends in Python or TypeScript aligned with clean architecture, OOP, SOLID, and domain-driven design. Create fullstack applications, APIs, agents, workflows, and similar systems using frameworks such as Next.js, React, FastAPI, Fastify, FastMCP ...