18 of 18 DemandTrendContract Clean Code Jobs in London

HTML/CSS/JavaScript – Stimulus, Hotwire, or React) to ship features quickly and reliably. You’ll design, build and maintain scalable features, collaborate with product and design, write clean, well-tested code and help improve performance. Requirements: 3+ years’ Ruby on Rails experience in production Strong JavaScript, HTML/CSS skills (Stimulus/Turbo/React) Knowledge … simplify complexity and remove the hidden costs of managing property.. We’re looking for a strong full stack developer who can confidently contribute across the backend and frontend, write clean, maintainable code and help us ship features quickly and reliably. Responsibilities Design, build and maintain scalable web application features in Ruby on Rails Contribute to front-end development … using HTML, CSS and JavaScript (Stimulus, Hotwire, or React) Collaborate closely with product/design to translate requirements into robust technical solutions Write clean, well-tested code (RSpec or Minitest) Debug and resolve bugs and performance issues Participate in code reviews and maintain coding best practices Support occasional DevOps or deployment tasks (Heroku/AWS experience a More ❯

maintain performant applications using React, Next.js, and Node.js Contribute to architectural discussions and technical design decisions Collaborate with product, design, and platform teams to align on feature delivery Write clean, maintainable code and participate in peer code reviews Optimise applications for performance, scalability, and user experience Ensure high standards of security, accessibility, and testing across the codebase More ❯

delivery. Working knowledge of Microsoft Dynamics and Wrangler (preferred). Exceptional communicator and collaborator with proven mentoring ability. Key Responsibilities of the Software Developer: Champion Agile methodologies while producing clean, efficient, and testable code. Collaborate with engineers and business teams to deliver impactful, high-quality solutions. Lead planning and prioritisation while mentoring members of a small engineering team. Design More ❯

delivery. Working knowledge of Microsoft Dynamics and Wrangler (preferred). Exceptional communicator and collaborator with proven mentoring ability. Key Responsibilities of the Software Developer: Champion Agile methodologies while producing clean, efficient, and testable code. Collaborate with engineers and business teams to deliver impactful, high-quality solutions. Lead planning and prioritisation while mentoring members of a small engineering team. Design More ❯

and maintain Java applications using Spring Boot. Microservices: Implement and manage microservices architecture. Front-End Integration: Develop front-end interfaces with Angular. Database Management: Design and optimize relational databases. Code Quality: Write clean, efficient code and perform code reviews. Linux Administration: Manage and maintain Linux servers. Collaboration: Work with cross-functional teams to define and implement More ❯

develop, and enhance features for the Operational Data Store application. Optimize performance and tuning for large-scale Oracle Exadata systems. Apply Scala and modern development practices, including design patterns , clean code , and reactive event-sourced systems . Collaborate with global teams, contributing to the re-architecture of securities post-trade platforms. Follow TDD , ATDD/BDD , and CI More ❯

across: React Python Javascript Nice to have: CI/CD Pipelines Github Actions Vue Java Azure Azure Devops Role The Full Stack Developer will adopt best practices like writing clean and reusable code using TDD, pair programming and design patterns. Advocate for continuous delivery practices to deliver high-quality software as well as value to end customers as … and practices to build and deploy software Oversee or take part in the entire cycle of software consulting and delivery Profile You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming. You are comfortable with Agile methodologies, such as Extreme Programming (XP), Scrum and/or Kanban. You have a good awareness More ❯

applications using C# (.NET) and React Design, implement, and optimise solutions in Microsoft Azure Collaborate with business analysts, solution architects, and QA engineers to ensure high-quality deliverables Write clean, maintainable, and testable code Participate in code reviews and contribute to best practice development standards Skills & Experience: Proven commercial experience with C# and React Strong understanding of More ❯

agile development team to deliver robust enterprise-wide solutions utilising industry standard practices Design, develop, enhance and maintain applications using agreed coding standards and quality targets. Ensure quality via code reviews and thorough unit testing. Liaise with immediate scrum team, other scrum/project teams, line manager and development lead to ensure accurate and complete delivery. Contribute to the … development and implementation of software development best practices within the organisation. Writing clean and efficient code using relevant programming languages to implement the designed features and functionality. Key Competencies & Skills: Knowledge of oil, wet bulk or energy trading and risk management business Software Development Methodologies: Understanding of Agile development practices and project management tools Communication Skills: Effective communication More ❯

understanding of the Software Development Life Cycle (SDLC) Responsibilities: Product Engineering & Delivery Build and maintain user-facing applications, tools, and integrations Collaborate with product managers, designers, and stakeholders Write clean, maintainable, well-tested code Contribute to product discovery with prototypes, spikes, and experiments Technology & Integration Build APIs and services to connect systems across the firm Integrate with internal … tools and third-party platforms Support low-code solutions, especially within Power Platform Agile & Iterative Development Work within a modern agile framework Participate in backlog grooming, technical scoping, and story writing Engage in design sessions, code reviews, and retrospectives Security, Quality & Operations Ensure compliance with security, privacy, and operational standards Monitor and improve the health of production code More ❯

Accountabilities: Develop and maintain scalable and responsive web applications using React.js and TypeScript. Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces. Write clean, maintainable, and efficient code while adhering to best practices. Optimize applications for maximum performance across a wide range of devices and browsers. Participate in code reviews and … maintain a high level of code quality. Troubleshoot and debug issues in both development and production environments. Contribute to architectural decisions and collaborate with other engineers on overall application design. Ensure the scalability and security of applications by following best development practices. Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the … control systems, such as Git. Solid understanding of web development fundamentals: HTML, CSS, and responsive design. Strong debugging skills and the ability to troubleshoot performance issues. Ability to write clean, modular, and well-documented code. Strong communication skills and the ability to collaborate effectively in a team-oriented environment. Please note: Should your application be successful, and you are More ❯

Accountabilities: Develop and maintain scalable and responsive web applications using React.js and TypeScript. Collaborate with UX/UI designers to implement modern, intuitive, and visually appealing user interfaces. Write clean, maintainable, and efficient code while adhering to best practices. Optimize applications for maximum performance across a wide range of devices and browsers. Participate in code reviews and … maintain a high level of code quality. Troubleshoot and debug issues in both development and production environments. Contribute to architectural decisions and collaborate with other engineers on overall application design. Ensure the scalability and security of applications by following best development practices. Stay up-to-date with emerging technologies and industry trends, integrating new tools and libraries into the … control systems, such as Git. Solid understanding of web development fundamentals: HTML, CSS, and responsive design. Strong debugging skills and the ability to troubleshoot performance issues. Ability to write clean, modular, and well-documented code. Strong communication skills and the ability to collaborate effectively in a team-oriented environment. Please note: Should your application be successful, and you are More ❯

quality, scalable solutions. Responsibilities: Build and maintain frontend components (Angular, TypeScript) and backend services (Java). Collaborate with stakeholders, shaping technical solutions from prototypes. Contribute to architectural decisions, write clean/tested code, and join agile ceremonies. Participate in code reviews and team discussions. Requirements: TypeScript | Angular | Java | CICD | Git | Cloud | AgilePlease apply with a copy of More ❯

business and technical requirements. Key Responsibilities Design and develop software applications using F#. Maintain and enhance existing applications. Collaborate with cross-functional teams to gather and analyse requirements. Write clean, maintainable, and efficient code. Conduct code reviews and ensure adherence to coding standards. Debug and resolve software issues. Participate in agile development processes. Key Skills F# Developer (or More ❯

Design, develop, and maintain fullstack applications using Python (backend) and React/TypeScript (frontend) Collaborate with product managers, designers, and other engineers to ship features end-to-end Write clean, testable, and maintainable code What We’re Looking For 3+ years of professional software engineering experience Strong proficiency in Python (e.g., Django, FastAPI, or Flask) Experience building web More ❯

Design, develop, and maintain fullstack applications using Python (backend) and React/TypeScript (frontend) Collaborate with product managers, designers, and other engineers to ship features end-to-end Write clean, testable, and maintainable code What We’re Looking For 3+ years of professional software engineering experience Strong proficiency in Python (e.g., Django, FastAPI, or Flask) Experience building web More ❯

strategic goals. Responsibilities: ·Design and develop scalable, high-performance data pipelines using Snowflake, DBT, and Azure DevOps ·Implement data transformations and support data curation and modelling best practices ·Champion clean, efficient code and peer review contributions from junior engineers ·Collaborate with stakeholders across geographies to clarify data requirements and drive delivery ·Contribute to the architecture of an enterprise More ❯

to have: Ruby on Rails, Next.js, distributed systems experience, observability tooling What we're looking for Strong experience delivering both frontend and backend features Ability to translate requirements into clean, maintainable, and scalable code Excellent communication skills in a remote-first setting Analytical approach to solving technical problems Contract details Length: 3 months (likely extension) Rate: £520/ More ❯