26 to 50 of 56 Clean Code Jobs in Central London

.Net Developer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
Work on the modernisation and refactoring of legacy .NET applications Collaborate with product managers, business analysts and QA to deliver high-quality features Write clean, testable and maintainable code following best practices Participate in code reviews and contribute to improving engineering standards Support production systems, including ...

Senior Software Engineer

Hiring Organisation
GTreasury
Location
City of London, London, United Kingdom
Your Impact Design and build scalable, resilient cloud applications Take ownership of features end-to-end (you build it, you run it) Influence architecture, code quality, and engineering standards Mentor engineers and contribute to technical decision-making Support production systems in a mature DevOps environment 👀 What You Bring 5+ … .NET and SQL-based systems Experience building cloud-native solutions in Azure Confidence working in complex, distributed systems A collaborative mindset and passion for clean, maintainable code 🎁 Why This Role? High visibility and real technical ownership Complex domain challenges Collaborative, low-ego engineering culture Hybrid working (10 days ...

Front End Developer

Hiring Organisation
Digital Waffle
Location
City of London, London, United Kingdom
modern, customer-facing web platform. This is a hands-on role for someone who enjoys working on complex interfaces, data-driven products and clean, well-structured front end architecture. You will work closely with product and engineering teams to deliver high quality user experiences, taking ownership of features from … patterns Working with reactive programming concepts using RxJS Collaborating with product managers and engineers to scope and deliver features Writing well tested, maintainable code with performance in mind Improving existing front end architecture and contributing to technical standards Using modern tooling and AI assisted workflows to speed up development ...

Scala Developer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Software Engineer (Scala)

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Backend Software Engineer (Scala)

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Scala Cloud Developer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Scala Backend Developer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Junior Full Stack PHP Software Engineer - Supply Chain / Sustainability. Hybrid

Hiring Organisation
Recruitment Revolution
Location
City of London, London, United Kingdom
Employment Type
Permanent, Part Time, Work From Home
Salary
£35,000
Engineer to support development on our sustainability and digital learning platforms. You'll be a curious and ambitious engineer who takes pride in writing clean, thoughtful code, enjoys solving real-world problems, and is excited to grow your skills while building technology that makes a meaningful impact. … responsibly to learn faster and ship better. Key Responsibilities: • Support the build and maintenance of custom Moodle plugins, themes and features (with guidance) • Write clean, reusable PHP and contribute to modern, responsive UI work (HTML/CSS/JS) • Assist with RESTful APIs and system integrations (implementing defined tasks ...

Full Stack Developer (PHP, Laravel, JavaScript) - Remote

Hiring Organisation
8 Signals Limited
Location
Central London / West End, London, United Kingdom
internal systems, and API-driven applications. This is a primarily remote role with a strong full stack experience. Daily tasks include writing and maintaining clean, modular code, collaborating with team members to execute software development projects, and working to ensure optimal performance and scalability of web solutions. … HTML, CSS, JavaScript and jQuery. Supporting Front-end mobile-responsive development and cross-browser compatibility. Comfortable working in existing and legacy codebases. Writing clean, maintainable and well-structured code. Able to work independently in a remote environment. Experience with software testing, including unit or feature testing. Understanding of security ...

Scala Systems Engineer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Scala Data Engineer

Hiring Organisation
Sky
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical solutions with business goals. Refining the team processes to continuously integrate and working towards a continuously deliverable application. Championing best practices to develop clean, resilient code that performs at serious scale. Coaching and providing feedback to fellow developers. What you'll bring Strong software engineering skills with ...

Shopify Developer

Hiring Organisation
Ecomlanders
Location
City of London, London, United Kingdom
performance Shopify Developer to join the Ecomlanders team on a project-by-project basis. We need a technical expert who understands the intersection of clean code and conversion rate optimization (CRO). You will be responsible for building scalable, responsive Shopify storefronts engineered to increase … experience check. Technical Task: Shortlisted candidates will complete a hands-on technical task to be reviewed by our Head of Development to assess code quality, logic, and Shopify-specific knowledge. What You’ll Do Develop custom Shopify themes and high-converting landing pages. Implement features designed to boost ...

Backend Software Engineer Java - Futures Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
have a good knowledge of AWS You also have an appreciation of UI development with TypeScript/React You take in pride in producing clean, high quality code You're familiar with modern software engineering tools such as Kafka, Kubernetes, MongoDB You are collaborative and pragmatic, able ...

Frontend React Developer

Hiring Organisation
Explore Group
Location
City of London, London, United Kingdom
into responsive, accessible and high‐performance user interfaces. Collaborate strategically with backend engineers, product owners and designers to deliver end‐to‐end solutions. Write clean, tested, maintainable code and set best‐practice standards for the front‐end. Optimize web performance, accessibility (WCAG), responsiveness, and the user experience. Participate … version control ( Git ), modern build tools and an eye for performance optimisation. Strong understanding of scalable front‐end architecture, responsive design, accessibility standards and code maintainability. Nice to Have Experience with server‐side rendering or static site generation (Next.js). Exposure to AI/ML integrations or advanced analytics ...

Java Developer Spring Boot AWS - Trading

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
have a good knowledge of AWS You also have an appreciation of UI development with TypeScript/React You take in pride in producing clean, high quality code You're familiar with modern software engineering tools such as Kafka, Kubernetes, MongoDB You are collaborative and motivated to learn ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
Knowledge of payment gateways, ISO 20022, or SWIFT formats. • Collaborative, fast-paced, and engineering-driven culture. • Emphasis on engineering autonomy, architectural decision-making, and clean code. Collaborative, fast-paced, and engineering-driven culture. Emphasis on engineering autonomy, architectural decision-making, and clean code. Join Our Global Team ...

AI Automation Engineer

Hiring Organisation
McCabe & Barton
Location
Central London, London, United Kingdom
Employment Type
Permanent
machine-readable and automation-ready using methodologies. Python Development - Strong proficiency in Python programming including object-oriented design, asynchronous programming, error handling, and writing clean, maintainable code. Experience with key libraries including Pandas, NumPy for data manipulation, requests and APIs for integrations, asyncio for concurrent processing, and building robust … databases (Pinecone, ChromaDB, FAISS), embeddings, and building AI-powered automation solutions that leverage natural language understanding. Appian BPA Platform - Strong experience with Appian low-code platform including process modelling, interface design, expression rules, integration objects, and data modelling. Skilled in building end-to-end business process applications, configuring workflows ...

Full Stack Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
City of London, London, United Kingdom
stakeholders, and happy taking ownership of their work end to end. Key Responsibilities Build and deliver new features across frontend and backend systems Write clean, maintainable code using modern JavaScript and cloud-native patterns Design and work with PostgreSQL databases and scalable APIs Work closely with product, compliance … engineering teams to solve real-world problems Contribute to architectural decisions and improvements as the platform scales Support code quality through testing, CI/CD, and peer review Key Skills & Experience Strong experience with React and Next.js Backend development experience with Node.js and API-driven architectures Experience working with ...

DeFi Developer | London

Hiring Organisation
AAA Global
Location
City of London, London, United Kingdom
stack — from on-chain integrations and execution logic , to infrastructure, monitoring, and performance optimization . What you’ll do Build and ship production-grade code (primarily Rust + Python ) Develop systems that interact with on-chain protocols and infrastructure (Solidity, JSON-RPC, Solana, MEV workflows, etc.) Improve real-time … fast by working on hard, meaningful problems. You should have: 3–7 years of professional software engineering experience Strong fundamentals and ability to write clean, testable, efficient code Solid CS foundation: algorithms, data structures, concurrency, networking, etc. Strong ownership mindset and clear communication Signals of technical excellence ...

Principle AI / ML Engineer

Hiring Organisation
Prolo
Location
City of London, London, United Kingdom
implement complex, scalable, and secure applications. Develop the architecture and ensure adherence to best practices. Optimize system performance and troubleshoot critical issues. Write clean, efficient, and maintainable code in Python, Java, and other high-level languages. Advocate for automation, testing, and continuous integration practices. Innovation & Research Stay current ...

Senior Python Engineer

Hiring Organisation
Safe Intelligence
Location
City of London, London, United Kingdom
lead and implement the improvement of algorithms, optimising execution, usability, and package architecture of our ML Verification packages. Note that this is a Python code focused role, rather than a Data Science role, so Python programming skills are the priority, where as Machine Learning and Data Science skills … both product and research teams. As a Safe Intelligence Senior Python Engineer , you will: Play a leadership and mentoring role in Python package and code development including strong modelling of best practice and efficient procedures. Productise a set of Python packages and tools for use in machine learning applications ...

Junior Full Stack PHP Software Engineer - Supply Chain / Sustainability. Hybrid

Hiring Organisation
Recruitment Revolution
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 35,000 Annual
Engineer to support development on our sustainability and digital learning platforms. You'll be a curious and ambitious engineer who takes pride in writing clean, thoughtful code, enjoys solving real-world problems, and is excited to grow your skills while building technology that makes a meaningful impact click ...

Senior Quant Developer : Elite Quant Fund : Python/C++ : £150-200k base plus huge bonus

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
high impact and low ego. The successful candidate will work at the intersection of quantitative research, data engineering, and high-performance software development — with code that moves rapidly from prototype to production and directly influences trading performance. The Role As a Quant Developer, you will: Collaborate closely with quant … researchers to productionise models and design scalable research/tooling infrastructure Develop high-performance, robust code across Python and C++ Build and maintain data pipelines, research platforms, and components of the live trading stack Optimise system performance, reliability, and throughput across large-scale datasets Contribute to architectural decisions across ...

Mobile Engineer

Hiring Organisation
Expedia Group
Location
City of London, London, United Kingdom
native Android apps used by millions of travellers. Partner with Product, Design, and back‐end teams to turn requirements into robust Android solutions. Write clean, maintainable Kotlin code using modern Android architectures and Jetpack libraries. Ensure performance, stability, and accessibility across the Android experiences you own. … safe, incremental releases. Use data, experimentation, and customer feedback to iterate and improve existing features. Help strengthen our engineering culture by contributing to code reviews, shared standards, and team learning. Minimum Qualifications: Bachelor’s degree in Computer Science or a related technical field; or equivalent related professional experience. 2+ ...