12 of 12 Contract Clean Code Jobs in London

data, and design teams to shape solutions Supporting live services, including monitoring, troubleshooting, and optimisation Contributing to CI/CD pipelines and infrastructure as code Writing clean, testable, maintainable code Participating in code reviews, pairing, and team delivery Tech Stack & Environment Backend: Scala, Java (Python desirable … with data platforms or risk/fraud systems How You'll Work Deliver value iteratively and early Collaborate closely across disciplines Write simple, maintainable code Take ownership of services end-to-end Continuously improve systems and team practices Reasonable Adjustments: Respect and equality are core values to us. ...

applications. Build responsive and dynamic user interfaces using React js. Develop backend services and APIs using Java (Spring Boot/Spring Framework). Write clean, maintainable, and efficient code following best practices. Perform code reviews and mentor junior developers. Optimize applications for maximum speed and scalability. Ensure ...

pipelines and Data Marts using PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement … rigorous CI/CD, unit testing, and data reconciliation frameworks to ensure "penny-perfect" accuracy. Technical Stack Engine: PySpark (Expert), Python (Clean Code/SOLID principles). AWS: EMR, Glue, S3, Athena, IAM, Lambda. Data Modeling: SCD Type 2, Fact/Dimension tables, Data Vault/Star Schema. ...

data processing architectures Working with large and complex datasets, ensuring performance and efficiency Contributing to system design, including microservices and event-driven architectures Writing clean, maintainable code aligned to best engineering practices Applying Test-Driven Development (TDD) and ensuring code quality Identifying and resolving performance bottlenecks Required ...

Stack Engineer with experience with JavaScript, TypeScript, MongoDB, React and Node.js and are happy to work fully remote. THE ROLE: Design, deploy and maintain clean code Build scalable backend services in Node.js and TypeScript Design and maintain relational and document databases in PostgreSQL and MongoDB Troubleshoot all systems ...

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 … 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 ...

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 … 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 ...

services we offer can help confirm and validate the data points (or attributes) they have provided. For example: Bank Accounts Check the sort code exists Check against a Third-Party API to confirm that the Sort Code, Account Number and Name provided match the name held … Kibana/Grafana), CI/CD (Jenkins/Airflow), RESTful APIs, Databases (MongoDB, Postgres, Hudi), AWS (Aurora RDS, S3, ECS, Secrets Manager), Infrastructure as code (Terraform) and third-party libraries. How we work: We favour: Breaking down a high-level problem as a team upfront and delivering the core ...

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 … 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 ...

defects. Follow best-practice engineering standards, design patterns, and architectural principles. Apply Test-Driven Development (TDD) in day-to-day development. Use static code analysis tools such as SonarQube to maintain clean, high-quality code. Work efficiently with SQL, data joins, and large/complex datasets. Leverage … data processing or data-intensive applications. Solid understanding of modern architectural patterns (Microservices, Event-Driven Architecture). Strong TDD skills and experience using static code analysis (e.g., SonarQube). Clear communication skills with the ability to explain technical concepts to varied audiences. Nice to Have Cloud experience: AWS/ ...

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 … 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 ...

processes (approvals, performance workflows, document generation, analytics, etc.). Proven experience building AI agents and multi-step automation flows. Strong hands-on engineering skills (clean, explainable, well-structured code). Expertise using ChatGPT Enterprise for workflow automation. Skilled in designing prompts, guardrails, and evaluation logic for reliable outputs. ...