20 of 20 Contract Clean Code Jobs in London

will focus on the development and delivery of Gen AI driven software solutions, working within a dynamic team to enhance our digital products. You will be responsible for writing clean, efficient, and maintainable code, primarily in Python and JavaScript, while contributing to the successful deployment of Gen AI technologies that directly impact the company's customer experience (CX … their scalability, security, observability and performance. This role is hands-on, with a primary focus on coding, testing, and deploying AI solutions in a fast-paced, agile environment. Responsibilities: Code Development and Testing Write, test, and maintain clean, efficient code in Python and JavaScript. Develop and implement Gen AI powered experiences or services in alignment with business … and product requirements. Participate in code reviews to ensure high-quality and consistent coding standards. AI Feature Integration Work closely with cross-functional teams to integrate AI models into digital products, ensuring seamless user experiences. Collaborate with AI specialists to test and deploy models, ensuring they meet performance, security and scalability requirements Continuous Learning and Improvement Stay up to More ❯

will focus on the development and delivery of Gen AI driven software solutions, working within a dynamic team to enhance our digital products. You will be responsible for writing clean, efficient, and maintainable code, primarily in Python and JavaScript, while contributing to the successful deployment of Gen AI technologies that directly impact the company's customer experience (CX … their scalability, security, observability and performance. This role is hands-on, with a primary focus on coding, testing, and deploying AI solutions in a fast-paced, agile environment. Responsibilities: Code Development and Testing Write, test, and maintain clean, efficient code in Python and JavaScript. Develop and implement Gen AI powered experiences or services in alignment with business … and product requirements. Participate in code reviews to ensure high-quality and consistent coding standards. AI Feature Integration Work closely with cross-functional teams to integrate AI models into digital products, ensuring seamless user experiences. Collaborate with AI specialists to test and deploy models, ensuring they meet performance, security and scalability requirements Continuous Learning and Improvement Stay up to More ❯

developers. - Proficiency in one or more well-structured programming languages (eg, Python, C++, C#, Java, Rust). - Familiarity with Linux. - Strong understanding of software development best practices, including: - Writing clean, testable code. - Version control (eg, Git). - Exposure to CI/CD pipelines. - Interest in working in a trading environment. - Knowledge of financial products (eg, futures, FX, interest rate More ❯

business combines product-led engineering with data-driven decision making, and is looking for an experienced backend engineer to help build and maintain their core platform. The team values clean code, automated testing, and pragmatic architecture. You'll join a small, experienced engineering group where ownership and collaboration are central to delivery. The Role You will take responsibility … APIs using Python and Django (or Django REST Framework). Building performant, secure data models and database schemas (Postgres). Writing automated tests (unit/integration) and participating in code review processes. Collaborating with frontend engineers to define interfaces and deliver product features. Working with DevOps/Platform teams on CI/CD, containerisation and deployment (Docker, Kubernetes or 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 ❯

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 ❯

practices, including automated test suites and documentation Develop, measure, and monitor key metrics for all tools and services and consistently seek to iterate on and improve them Participate in code reviews, continuously improving personal standards as well as the wider team and product Liaise with other technical staff and data engineers in the team and across allied teams, to … experience (e.g. Google Cloud and cloud run preferred) including core web application infrastructure is essential Strong skills in JavaScript/TypeScript and Python, ensuring best practices are followed for clean and scalable code Demonstrated ability to work directly with designers, particularly using Figma, to convert design prototypes into engaging and interactive applications Experience in using automated testing tools More ❯

practical experience. 2+ years experience in prototyping, testing, or research within ML, deep learning, or NLP. Proficiency in Python (intermediate level; ability to navigate multi-file codebases and write clean code). Familiarity with AI agent frameworks such as Model Context Protocol (MCP) or LangChain. Exposure to large-scale software system architecture. Desirable: Direct experience in generative AI More ❯

React Hooks, Rest, GraphQL, SCSS, CSS, TDD, Unit Testing, Docker, GIT and Agile are also required. All applicants must have previous experience of working independently to meet deadlines, reviewing code and promoting clean coding principles and design patterns, as well as excellent communication skills in technical and non-technical aspects. The initial contracts will be written for More ❯

and maintain software solutions and take ownership of your projects from start to finish. What You'll Do: Build, test, and deploy new features across the full stack. Write clean, high-quality code and participate in code reviews. Find and fix bugs and solve complex technical problems. Help improve system performance, testing, and monitoring. What You'll More ❯

and maintain software solutions and take ownership of your projects from start to finish. What You'll Do: Build, test, and deploy new features across the full stack. Write clean, high-quality code and participate in code reviews. Find and fix bugs and solve complex technical problems. Help improve system performance, testing, and monitoring. What You'll More ❯

to best practises, including automated test suites and comprehensive documentation. Develop, measure, and monitor key metrics for all tools and services, consistently seeking to iterate and improve. Participate in code reviews to elevate personal standards and contribute to the team's overall product quality. Collaborate with other technical staff and data engineers to build an end-to-end pipeline … equivalent experience. Essential cloud experience (Google Cloud and Cloud Run preferred) for core web application infrastructure. Strong skills in JavaScript/TypeScript and Python, adhering to best practises for clean and scalable code. Ability to work directly with designers using Figma to transform design prototypes into engaging applications. Experience with automated testing tools (e.g., Playwright, Cypress) for maintaining and More ❯

developers to deliver robust, production-quality software. Key Responsibilities: Build and maintain Python web applications (FastAPI preferred) Integrate AI/ML components with backend, data, and compute infrastructure Deliver clean, well-documented code following best practices Implement automated testing frameworks and CI/CD workflows Monitor and improve performance metrics across deployed tools Collaborate with technical teams to More ❯

agile environment , ensuring strategic alignment and measurable business impact. Required Experience & Skills 5+ years' experience delivering production-grade ML solutions in industry. Strong Python coding and software engineering skills (clean, modular, documented code). Expertise in time-series modelling , backtesting , and quantitative analytics for trading. Proven experience in energy/power trading , with exposure to battery and utilities More ❯

to design, develop, and optimise systems that drive performance, scalability, and reliability. Key Responsibilities Collaborate with cross-functional teams to architect and deliver user-centric platform solutions . Write clean, efficient, and scalable code following industry best practices. Optimise application performance and reliability , ensuring seamless user experiences. Participate in agile development processes , including sprint planning, daily stand-ups … and code reviews. Required Skills & Experience Proven experience as a Platform Engineer , with a strong emphasis on user experience . Proficiency in container orchestration (Kubernetes) and cloud infrastructure management (AWS). Expertise in scripting (Python, Bash) and programming (Java). Hands-on experience with DevOps tools : GitLab, Ansible, Prometheus, Grafana, Nagios, Argo CD, Rancher, Harbour. Deep understanding of big More ❯

genuine engineering challenges. You'll collaborate closely with product and engineering teams across the stack to improve developer experience, strengthen observability, and troubleshoot complex distributed systems. A focus on clean, maintainable code, cloud infrastructure, and strong security practices is essential. Senior Platform Engineer - Key Skills & Experience: Solid background in software engineering, with significant platform or backend experience Proficiency … and services Strong expertise in AWS, including CloudFront and related web application services Hands-on experience with CI/CD pipelines and modern deployment practices Familiarity with infrastructure-as-code tools such as Terraform Strong understanding of security best practices in application and infrastructure design Exposure to observability tools (e.g. Prometheus, Grafana, structured logging) Confident debugging and resolving issues More ❯

of growth. You'll be joining a distributed engineering team and will play a key role in delivering new products, improving internal tooling, and helping set the standard for clean, maintainable code. Key Projects You'll contribute to three core initiatives, each with clear deliverables and tangible business impact: AutoBI Tool (3 months) - Build backend functionality for a pricing … built in collaboration with marketing and growth teams. These projects are well-defined, fast-moving, and will give you full ownership of backend delivery. Responsibilities Develop, test, and deliver clean, scalable backend code using Python and Django Collaborate closely with PMs, frontend engineers, and QA teams to deliver end-to-end features Take ownership of key deliverables across More ❯

heavily cloud-focused (AWS) and requires strong expertise in Python, Spark, and relational databases. Role Design, build, and maintain scalable, reliable, and high-performance data pipelines and workflows. Develop clean, maintainable, and testable code in Python for data ingestion, transformation, and processing. Optimise and fine-tune query performance on Aurora Postgres and other relational databases. Architect and manage … maintain robust data models that align with business and financial domain requirements. Ensure best practices for data security, governance, and compliance. Profile Strong Python development skills, with experience writing clean, extensible, and testable code. Proven experience with relational databases (Aurora Postgres preferred), including performance optimisation. Extensive AWS experience, particularly with serverless data engineering tools (Lambda, Glue, Glue Data Catalog More ❯

with solution architects and developers to deliver innovative, high-quality solutions. Profile The AWS Data Architect will have strong Python development skills (must be able to design and write clean, maintainable, and testable code). Extensive AWS expertise, particularly across: Lambda Glue Glue Data Catalog EMR services API Gateway Relational database experience with Aurora Postgres (including query performance More ❯

a tangible difference. Key Responsibilities Perform data wrangling , cleaning, transformation, and preparation of large, complex datasets Develop and deploy machine learning models to solve real-world operational problems Write clean, maintainable Python code for data analysis, automation, and modelling Collaborate with engineers and analysts to integrate models into production systems Present findings and insights to technical and non More ❯