176 to 200 of 442 Clean Code Jobs in London

products Comfortable operating in a dynamic, fast-paced startup environment Strong communicator, able to bridge technical and non-technical discussions Skilled in architecture, testing, clean code, and modern engineering practices Familiar with measuring impact using business and engineering metrics Able to work from the London HQ 3 days More ❯

be part of a small, empowered team moving fast and building things that matter. The ideal candidate is a pragmatic problem-solver who loves clean code, smart systems, and building for impact. What You'll Be Doing Building scalable software that connects users with thoughtfully designed financial solutions More ❯

practices and drive continuous improvement. Optimize SQL queries and work with cloud services (AWS). Mentor junior developers and uphold coding standards. Ensure high code quality through testing, debugging, and code reviews. Essential Skills & Experience 5+ years of experience with Node.js, React, JavaScript/TypeScript . Strong SQL … performance optimization. Experience in Agile development, scalable APIs, and cloud-based architectures . Solid understanding of AWS services and DevOps principles. Passion for writing clean, maintainable code and improving team practices. Nice-to-Have Skills Snowflake/Data Warehousing DevOps & CI/CD experience GraphQL Benefits Competitive salary More ❯

practices and drive continuous improvement. Optimize SQL queries and work with cloud services (AWS). Mentor junior developers and uphold coding standards. Ensure high code quality through testing, debugging, and code reviews. Essential Skills & Experience 5+ years of experience with Node.js, React, JavaScript/TypeScript . Strong SQL … performance optimization. Experience in Agile development, scalable APIs, and cloud-based architectures . Solid understanding of AWS services and DevOps principles. Passion for writing clean, maintainable code and improving team practices. Nice-to-Have Skills Snowflake/Data Warehousing DevOps & CI/CD experience GraphQL Benefits Competitive salary More ❯

you have a talent for translating complex data into interfaces that make sense to non-technical users. On the backend, you can confidently write clean, maintainable code that powers these experiences. You thrive in environments that encourage rapid experimentation and iterative development. You're comfortable with ambiguity and … test ideas and refine based on direct customer feedback Apply our engineering philosophy : intellectual honesty, effective time management, clear communication, and innovation Participate in code reviews to maintain high quality standards and grow as a developer Experiment fearlessly with new approaches and technologies, learning from both successes and failures … Solid foundation in JavaScript/TypeScript and CSS Working knowledge of Python for backend development Experience building and consuming RESTful APIs Commitment to writing clean, maintainable, and well-tested code Strong communication skills and ability to collaborate with cross-functional teams Product-minded approach to development, with focus More ❯

Want to put your engineering skills to work on something that truly matters? We’re recruiting a Senior Fullstack Engineer for a clean tech scale-up. This hybrid role is ideal for engineers who care deeply about sustainability and want to use technology to drive real-world impact. What … and scalable backend services with Python (FastAPI) ✔ Developing modern frontends and UIs with React.js + TypeScript ✔ Collaborating with a forward-thinking team that values clean code What You’ll Bring: 🔹 Fullstack experience with Python , React , and cloud-native tools 🔹 Ownership mentality and a desire to shape long-term … architecture 🔹 A track record of building scalable, secure applications 🔹 Interest in building scalable, secure applications Why Join? 💚 Contribute to the UK’s clean tech transition 🌍 Direct impact on air quality and carbon reduction 🎁 Competitive pay, generous benefits, and learning time Let’s help build a cleaner future together! Apply More ❯

Want to put your engineering skills to work on something that truly matters? We’re recruiting a Senior Fullstack Engineer for a clean tech scale-up. This hybrid role is ideal for engineers who care deeply about sustainability and want to use technology to drive real-world impact. What … and scalable backend services with Python (FastAPI) ✔ Developing modern frontends and UIs with React.js + TypeScript ✔ Collaborating with a forward-thinking team that values clean code What You’ll Bring: 🔹 Fullstack experience with Python , React , and cloud-native tools 🔹 Ownership mentality and a desire to shape long-term … architecture 🔹 A track record of building scalable, secure applications 🔹 Interest in building scalable, secure applications Why Join? 💚 Contribute to the UK’s clean tech transition 🌍 Direct impact on air quality and carbon reduction 🎁 Competitive pay, generous benefits, and learning time Let’s help build a cleaner future together! Apply More ❯

behind our generative AI-powered video platform. You'll take full ownership — from design to deployment — in a fast-paced, agile environment that values clean code and stunning user experiences. 🛠️ What You’ll Do Build full-stack features (frontend to backend) Collaborate on features & improvements Integrate APIs, mentor More ❯

behind our generative AI-powered video platform. You'll take full ownership — from design to deployment — in a fast-paced, agile environment that values clean code and stunning user experiences. 🛠️ What You’ll Do Build full-stack features (frontend to backend) Collaborate on features & improvements Integrate APIs, mentor More ❯

no significant issues Develop/improve M&S standard frameworks and policies, ensuring that they are understood and adopted Support other engineers to produce clean, quality code through code reviews and pair programming Support the technical platform out of hours as a member of the support rota More ❯

risk, and analytics tools that drive real-time decision-making. You’ll be joining a high-performance Front Office environment where speed, accuracy, and clean code are essential. 🔧 Key Responsibilities: Develop, enhance, and support Front Office pricing and risk applications Collaborate closely with Traders, Quants, and Risk Analysts More ❯

risk, and analytics tools that drive real-time decision-making. You’ll be joining a high-performance Front Office environment where speed, accuracy, and clean code are essential. 🔧 Key Responsibilities: Develop, enhance, and support Front Office pricing and risk applications Collaborate closely with Traders, Quants, and Risk Analysts More ❯

API development, integrations, to new feature development, providing a rich experience for customers You will follow best practices in testing, documentation & maintainability, ensuring a clean & scalable codebase ⚙️ Tech you will work with: Kotlin, Grails, Vert.x, gRPC, microservices, event-driven architecture, GCP, Kubernetes, Terraform, Kafka, BigQuery, PostgreSQL Ideal Candidates will More ❯

API development, integrations, to new feature development, providing a rich experience for customers You will follow best practices in testing, documentation & maintainability, ensuring a clean & scalable codebase ⚙️ Tech you will work with: Kotlin, Grails, Vert.x, gRPC, microservices, event-driven architecture, GCP, Kubernetes, Terraform, Kafka, BigQuery, PostgreSQL Ideal Candidates will More ❯

the expectation of 3 days a week onsite in their London office. Responsibilities: Lead full stack development of scalable web applications. Architect and implement clean, maintainable code in both the frontend and backend. Collaborate closely with product owners, designers, and engineers to define and deliver technical solutions. Set … coding standards and best practices within the team. Conduct code reviews and ensure high-quality output. Identify technical risks early and provide solutions. Drive continuous improvement in development practices. Key Skills & Experience: Strong commercial experience with TypeScript (React, Node.js preferred). Solid backend development experience with Kotlin (Spring Boot More ❯

the expectation of 3 days a week onsite in their London office. Responsibilities: Lead full stack development of scalable web applications. Architect and implement clean, maintainable code in both the frontend and backend. Collaborate closely with product owners, designers, and engineers to define and deliver technical solutions. Set … coding standards and best practices within the team. Conduct code reviews and ensure high-quality output. Identify technical risks early and provide solutions. Drive continuous improvement in development practices. Key Skills & Experience: Strong commercial experience with TypeScript (React, Node.js preferred). Solid backend development experience with Kotlin (Spring Boot More ❯

X-Ray, and CloudTrail. Implement security measures, including IAM, encryption, and access control. Work with stakeholders to translate business requirements into cloud solutions. Write clean, maintainable code and resolve technical issues in the application stack. Optimize AWS resources for cost efficiency. Required Skills & Experience: Hands-on experience with … Experience with microservices and serverless architectures on AWS. Familiarity with CI/CD tools like AWS CodePipeline, Jenkins, or GitLab. Knowledge of Infrastructure as Code (e.g., CloudFormation, Terraform, AWS CDK). Understanding of AWS security best practices (e.g., IAM, encryption). Strong problem-solving and debugging skills for cloud More ❯

Join Our Trailblazing MedTech Team as a Senior Backend Software Engineer! Are you ready to revolutionize healthcare technology? Do you have a passion for clean, scalable, and robust code? If so, we have the perfect opportunity for you! About Us: We are a forward-thinking MedTech company at … in shaping and developing our core product, leveraging your extensive skills in creating REST API endpoints using ASP.NET Core. Your expertise will ensure our code is clean, scalable, and robust, meeting the rigorous demands of a regulated environment. Key Responsibilities: Lead by example, maintaining high standards in software … development and engineering practices.Develop and maintain REST API endpoints using ASP.NET Core.Write clean, scalable, and well-tested code.Collaborate with cross-functional teams to design, develop, and deliver high-quality software solutions.Ensure compliance with regulatory requirements in healthcare or similar industries.Mentor and guide junior engineers, fostering a culture of continuous More ❯

responsive and intuitive web interfaces using React and TypeScript. Work with backend engineers to integrate RESTful APIs and cloud-based services (AWS). Write clean, efficient, and maintainable code while adhering to best practices. Collaborate with cross-functional teams, including product, design, and backend engineers, to deliver high More ❯

responsive and intuitive web interfaces using React and TypeScript. Work with backend engineers to integrate RESTful APIs and cloud-based services (AWS). Write clean, efficient, and maintainable code while adhering to best practices. Collaborate with cross-functional teams, including product, design, and backend engineers, to deliver high More ❯

priorities into actional technical plans with clear timelines. Proactively identify risks and remove blockers to keep teams moving forward Champion engineering best practices including clean code, secure design, CI/CD, and test automation Oversee infrastructure resilience, observability, and incident response processes Act as the bridge between Product … and decisions to senior stakeholders. Key Skills/Experience Proven experience in an engineering leadership role Deep technical expertise — comfortable diving into architecture discussions, code reviews, and technical decision making Solid understanding of modern backend and hands on DevOps experience Excellent organisational skills with the ability to prioritise and More ❯

priorities into actional technical plans with clear timelines. Proactively identify risks and remove blockers to keep teams moving forward Champion engineering best practices including clean code, secure design, CI/CD, and test automation Oversee infrastructure resilience, observability, and incident response processes Act as the bridge between Product … and decisions to senior stakeholders. Key Skills/Experience Proven experience in an engineering leadership role Deep technical expertise — comfortable diving into architecture discussions, code reviews, and technical decision making Solid understanding of modern backend and hands on DevOps experience Excellent organisational skills with the ability to prioritise and More ❯

that bring data to life for real-time response teams. You'll help design and deliver distributed systems and highly usable web applications with clean, efficient code, and play a part in shaping the next generation of public safety software. This team is currently contributing to two company More ❯

Technical Leadership & Solution Implementation: Lead the team in solving difficult technical problems, architecting scalable and efficient solutions. Be hands-on in implementing solutions, ensuring code quality and adherence to best practices. Drive Technical Excellence: Establish and uphold technical standards and best practices for the team to follow. Champion continuous … XSS and CSRF protection, input validation and sanitisation Performance Optimisation: Cache management, queue handling, database query optimisation, Laravel's caching mechanisms, Redis Understanding of clean code principles Knowledge of SOLID principles Additional Technical Skills: Event-driven architecture, microservices concepts, web sockets and real-time features, file handling and … . Training & development opportunities to help you grow in your career. 2 days a week to work from home - balance is key! Casual dress code - bring your true self to work! Free snacks and drinks in the office to keep you fuelled. Team events like Summer & Christmas parties, spontaneous More ❯

risk, and analytics tools that drive real-time decision-making. You’ll be joining a high-performance Front Office environment where speed, accuracy, and clean code are essential. 🔧 Key Responsibilities: Develop, enhance, and support Front Office pricing and risk applications Volatility model framework build-out FX framework build More ❯