1 to 25 of 535 Clean Code Jobs in the UK

Principal Software Engineer SC&L

Hiring Organisation
Marks & Spencer
Location
United Kingdom, UK
Employment Type
Full-time
technology investment decisions, partnering with Engineering, Technology and Product leaders to align priorities and outcomes. Champion engineering excellence by promoting best practices including clean code, clean architecture, DevOps, automation and operational excellence, while driving productivity and delivery quality. Mentor and develop engineers across the organisation, supporting Communities … delivering technology strategy, driving innovation, influencing technical direction and implementing solutions that create measurable business value. Deep expertise in software engineering best practices, including clean code, design patterns, quality assurance, testing strategies, continuous integration, continuous delivery and DevOps principles. Strong technical leadership across solution architecture, cloud computing, information ...

Senior Software Engineer (Java/Kotlin)

Hiring Organisation
Morgan McKinley
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £595.00 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 ...

Senior Software Engineer

Hiring Organisation
Pure Resourcing Solutions
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
performance data processing systems in a production-focused environment. This role is centred on software engineering rather than modelling, with a strong emphasis on clean code, Test-Driven Development (TDD), and scalable data processing. Key ResponsibilitiesDevelop and maintain production-grade Python applications. Build high-throughput data processing pipelines … handling large datasets on local server infrastructure. Design and implement robust multithreaded and multiprocessing solutions. Write clean, maintainable code within a TDD environment. Optimise performance across CPU, memory, and I/O intensive workloads. Essential ExperienceStrong commercial Python development experience. Expert knowledge of multithreading, multiprocessing, and concurrency. Proven ...

Senior Software Engineer

Hiring Organisation
Pure Resourcing Solutions Limited
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
performance data processing systems in a production-focused environment. This role is centred on software engineering rather than modelling , with a strong emphasis on clean code, Test-Driven Development (TDD), and scalable data processing . Key Responsibilities Develop and maintain production-grade Python applications. Build high-throughput data … processing pipelines handling large datasets on local server infrastructure. Design and implement robust multithreaded and multiprocessing solutions. Write clean, maintainable code within a TDD environment. Optimise performance across CPU, memory, and I/O intensive workloads. Essential Experience Strong commercial Python development experience. Expert knowledge of multithreading, multiprocessing ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, UK
Employment Type
Full-time
solutions end-to-end, from technical design and architecture through to production deployment, monitoring, support, and continuous improvement. Champion engineering best practices across code quality, testing, CI/CD, observability, maintainability, and operational resilience. Mentor and guide junior and mid-level engineers, setting high technical standards through code … using Angular or React, with a focus on reliable, maintainable, and responsive UI delivery. Strong understanding of software engineering best practices, including automated testing, clean code, code reviews, CI/CD, observability, and secure development practices. Experience deploying and operating production-grade systems in cloud or hybrid ...

Senior Java Developer

Hiring Organisation
Global
Location
London, UK
Employment Type
Full-time
that support great user experiences across our platforms. Engineering excellence (35%): Design, build and maintain backend services using modern Java and Spring Boot, applying clean code principles, contract-first design and robust automated testing. Leadership & collaboration (30%): Guide and mentor engineers in the team, champion best practices … clear, maintainable solutions that allow the team to move quickly and safely. Better Together: Be part of a collaborative engineering culture that values pairing, code reviews, shared decision-making and learning from each other. What Success Looks LikeIn your first few months, you'll have: Contributed to key features ...

Data Scientist

Location
Greater London, England, United Kingdom
environment. Strong predictive modeling foundation: Extensive experience with traditional ML algorithms, Deep Learning frameworks, and complex time-series forecasting. Experience developing production-grade Python code: High proficiency in Python, Pandas, and modern software practices (testing, clean code, code review, CI/CD). Data & Pipeline Expertise ...

Lead Integration Engineer – 12 Month FTC

Location
West of England, England, United Kingdom
error handling, retry and replay mechanisms Experience working across complex technology estates with multiple source and consuming systems Knowledge of software engineering principles including clean code, testing, version control and CI/CD Technical documentation skills and ability to communicate complex integration concepts to stakeholders Core Competencies Demonstrates … Operational Support Technical Leadership ATS Optimization Keywords Hard Skills Integration Development API Management Error Handling Mechanisms Asynchronous Communication Messaging Systems Distributed Systems Technical Documentation Clean Code Principles CI/CD Practices Version Control Soft Skills Technical Mentoring Collaboration Communication Industry Keywords Integration Patterns Interface Contracts Schemas Service Interoperability ...

Software Development Engineer II - Customer Fulfilment - Welwyn Garden City, United Kingdom of Great Britain and Northern Ireland

Hiring Organisation
Tesco
Location
Welwyn Garden City, Hertfordshire, UK
Employment Type
Full-time
sized features and participate in their design and delivery. Collaboration: Work closely with engineers, product managers, and stakeholders to understand problems and propose solutions. Code Quality: Write clean, maintainable code and contribute to peer reviews to raise the team's quality bar. Support & Mentorship: Help onboard junior … sized features and participate in their design and delivery. Collaboration: Work closely with engineers, product managers, and stakeholders to understand problems and propose solutions. Code Quality: Write clean, maintainable code and contribute to peer reviews to raise the team's quality bar. Support & Mentorship: Help onboard junior ...

Senior Software Engineer

Location
United Kingdom
Drive Impact: Collaborate with business stakeholders to understand requirements and translate them into possible improvements to our product. Build Great Software: Design and develop clean, maintainable, and high-quality software. Conduct code reviews and contribute to a culture of technical excellence. Shape Architecture: Collaborate on system design, tech … Science or equivalent practical experience. 5+ years of experience in a software engineering role. Passionate about software craftsmanship: Strong understanding of software development principles, Clean Code and Clean Architecture. Product thinking: Ability to translate business problems into precise requirements, specifications and ultimately into code. Entrepreneurial mindset: link ...

Senior Fullstack Engineer (Flutter/Node.js) - Mobile Experience

Hiring Organisation
Kpler
Location
London, UK
Employment Type
Full-time
sustain the full load of the mobile applications. You will join a squad at the forefront of AI-assisted engineering, where 100% of deployed code is authored by AI under your orchestration — a modern environment for engineers who want to redefine software delivery through advanced AI tooling. The squad … Engineers, 1 Mid-level Engineer, 1 EM, 1 PM, 1 Designer. Key ResponsbilitiesDevelop complex, production-ready features for the MarineTraffic and Kpler apps, upholding Clean Architecture standards and translating platform conventions (Apple HIG, Material) into polished, native-feeling, accessible experiences. Design and evolve the mobile BFF (Node.js, TypeScript, GraphQL ...

PHP Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
Basingstoke, Hampshire, 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
Aberdeen, Aberdeenshire, 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 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
Location
Edinburgh, UK
Employment Type
Full-time
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 Platform Engineer

Location
Reigate, England, United Kingdom
successful in this role with experience in delivering large scale Cloud services. The Role: Provide technical input, guidance and leadership to the team (including code quality, best practices, processes, some aspects of release management, etc.). Assist in the design and documenting of solutions meeting functional and non-functional … implementation, unit and system testing, deployment, operations, monitoring and incident management. Software engineering fundamentals Strong grounding in object oriented design, design patterns, SOLID principles, clean code practices, code review, documentation and Agile delivery. Core technical stack Hands‐on experience with C# and .NET (Core/6+ ...

Senior Engineer, Risk Engineering

Location
United Kingdom
products and risk models.* Continuous Codebase Optimization: Actively optimize and refactor the existing codebase to enhance automated testing, performance, and maintainability.* Engineering Excellence: Write clean, well-documented code, participate actively in code reviews, and champion agile best practices within the team.**What You’ll Bring*** Professional Experience … unit/integration testing, TDD, and exposure to simulation or stress testing.* Software Design Fundamentals: Well-versed in Agile methodologies, design patterns, DRY principles, Clean Code, and microservices architecture.* Technical Ecosystem: Proficient with modern DevOps and cloud tools, including Git, Docker, Kubernetes, and cloud platforms (GCP preferred). ...

Software Engineer (Applied AI)

Location
Greater London, England, United Kingdom
tech stack : You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ML work. Live on the cutting edge of AI tooling : You’ll help push the boundary … paced iterative environment : Collaborate closely with design, product, and beyond to deliver and iterate on impressive features and prototypes at world-class pace. Keep code clean and well-tested : Maintain clean, efficient, and tested code with clear documentation for both peers and future reference. Review, refine ...

Full Stack Software Developer

Hiring Organisation
We Are Dcoded Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
with the web codebase where sensible. Using AI coding tools as part of your workflow critically reviewing, testing, and taking ownership of AI-generated code rather than accepting it uncritically. Participating in code review, architectural discussions, and establishing engineering practices and standards as an early hire. Helping build … culture of strong engineering discipline including clean code, sound OOP design, and a proper test pyramid in a company operating in a regulated, data-sensitive industry. Skills and Experience Essential Strong engineering fundamentals: SOLID, DRY, Law of Demeter, and the reasoning behind them, not just the acronyms. Good ...

Full Stack Software Engineer III - Java

Location
Greater London, England, United Kingdom
businesses — and we're looking for engineers who take ownership, raise the bar, and grow fast. You'll work in a culture of strong code reviews, fast feedback, and scalable architecture, with real opportunities to deepen your technical influence and shape the future of financial technology. As a Software … within the Global Banking Technology team, you will own end-to-end delivery of secure, full stack features — turning requirements into solid designs, shipping clean Java code, and improving services built on microservices, Kafka/event-driven patterns, and CI/CD pipelines. You will troubleshoot complex production ...

Python Software Engineer

Location
Greater London, England, United Kingdom
client-facing platform. You’ll work closely with other engineers and cross-functional teams, take ownership of complex problems, and ship production-ready code that has real business impact. You’ll also contribute to design and architecture discussions and help maintain high standards for code quality and system … party systems, including asynchronous processing and event-driven architecture Shape technical direction, contribute to architectural decisions, and plan for scalability, performance, and reliability Write clean, pragmatic code with a strong focus on maintainability, observability, and security Investigate complex issues across distributed systems, identify root causes, and drive long ...

Senior Software Engineer (Java + Vue/Typescript)

Location
Leeds, England, United Kingdom
Saving Expert, building digital products and services that make a difference while always putting people first. We’re a team of creators. We write code, shape delivery, build go-to-market strategies, develop AI solutions and create the practices that support our people. We work side by side with … performant and aligned with best practices. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Champion engineering excellence through clean code, automated testing, documentation and code reviews. Drive delivery across multiple initiatives while balancing speed, quality and commercial value. Mentor engineers through ...

Senior Software Engineer (Java + Vue/Typescript)

Location
City of Edinburgh, Scotland, United Kingdom
Saving Expert, building digital products and services that make a difference while always putting people first. We’re a team of creators. We write code, shape delivery, build go-to-market strategies, develop AI solutions and create the practices that support our people. We work side by side with … performant and aligned with best practices. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Champion engineering excellence through clean code, automated testing, documentation and code reviews. Drive delivery across multiple initiatives while balancing speed, quality and commercial value. Mentor engineers through ...

Senior Software Engineer, Full-Stack Applications (Python)

Hiring Organisation
Fitch Ratings
Location
Manchester, UK
Employment Type
Full-time
applications – Build robust, scalable applications using Python (FastAPI/Flask), and ReactJS following best practices and design patterns Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews Work … other engineers to understand requirements and deliver solutions that meet business needs Apply engineering best practices – Follow SOLID principles and design patterns, participate in code reviews, solve technical challenges, and contribute to code quality Support and improve systems – Troubleshoot production issues, optimize performance, and help ensure reliability ...