13 of 13 Contract Clean Code Jobs in London

intuitive, intelligent user experience. What You’ll Be Doing: Building responsive, modular React applications that sit at the heart of an AI-driven SDLC platform Translating Figma designs into clean, maintainable, high-performing front-end code Integrating with Python-based services to surface AI insights and automation directly in the UI Creating reusable components and libraries that accelerate … Python services or frameworks for back-end integration Solid understanding of REST APIs, microservices, and contemporary web architecture Experience in enterprise-grade or engineering tools environments A commitment to clean code, testing, and continuous delivery Confident communication skills and a proactive, ownership-driven mindset Bonus Points For: Exposure to GenAI/LLM integrations such as OpenAI or Anthropic … Looks Like: A smooth, modern UI that makes AI-driven automation feel natural for engineers Strong collaboration across UX, AI, and engineering to deliver a cohesive platform Maintainable, scalable code that underpins a next-gen engineering experience Role Details: Rate: £500–£520 per day (Inside IR35) If you’re excited about shaping a platform that genuinely elevates engineering teams More ❯

and strengthen platform resilience. What You'll Bring Strong proficiency in Python (or a similar high-level language) with a deep understanding of software engineering best practices - testing, automation, clean code, and CI/CD. Proven track record building and maintaining scalable data platforms in production, enabling advanced users such as ML and analytics engineers. Hands-on experience …/observability solutions like Monte Carlo, Atlan, or DataHub. Solid understanding of cloud environments (AWS or GCP), including IAM, S3, ECS, RDS, or equivalent services. Experience implementing Infrastructure as Code (Terraform) and CI/CD pipelines (e.g., Jenkins, GitHub Actions). A mindset focused on continuous improvement, learning, and staying at the forefront of emerging technologies. Nice to Have More ❯

contract - Inside IR35 - up to £585 per day London based - hybrid working - 3 days office based Current NPPV3 clearance is highly desirable Your main responsibility will be to deliver clean, maintainable, and well-tested code that adheres to SOLID principles. You will work collaboratively across Quality Assurance, DevOps, and other development teams, sharing knowledge, supporting onboarding, and contributing … to code reviews. Key Responsibilities Deliver high-quality, maintainable code and development outcomes. Manage data exchange between backend services, front-end applications, and third-party APIs. Develop server-side logic in collaboration with Business Analysts and QA, ensuring requirements are met and code is testable. Lead and contribute to technical user stories, focusing on integration and service … optimisation. Document solutions using diagrams, flowcharts, and clear code comments. Ensure compliance with quality standards, including automated testing and code reviews. Address non-functional requirements such as performance, monitoring, and operational support. Support releases through all development environments, maintaining quality and reliability. Contribute to skill development and technology adoption within the team. Present technical concepts in demos and More ❯

Day Rate: Up to £350 (Inside IR35) Location: London W12 (Wednesdays onsite) Contract: ASAP Start - 31 July 2026 Are you a hands-on Senior Tester with a passion for clean code, modern tooling, and problem-solving in AWS environments? We're after a sharp, inquisitive contractor who thrives on mixing manual and automated testing — and isn't afraid More ❯

data architecture expertise. Key responsibilities: Design and implement high-throughput data streaming solutions using Kafka, Flink, or Confluent. Build and maintain scalable backend systems in Python or Scala, following clean code and testing principles. Develop tools and frameworks for data governance, privacy, and quality monitoring, ensuring full compliance with data protection standards. Create resilient data workflows and automation More ❯

define technical solutions. * Optimise performance, reliability, logging, and error handling across distributed systems. * Integrate with third-party systems and internal services using modern API standards and healthcare protocols. * Write clean, maintainable, and testable code following engineering best practices (TDD/BDD). * Participate in code reviews, support engineering excellence, and mentor junior developers. * Ensure compliance with security More ❯

Design, build, and maintain scalable open data services and APIs Lead technical decisions and contribute to architectural direction Collaborate with user-centred design (UCD) teams and technical experts Ensure code quality, documentation, and maintainability Align delivery with recognised standards including the Technology Code of Practice and Service Standard Essential Skills & Experience 4+ years of experience in software development … Strong proficiency in Ruby (Python is a bonus) Experience with microservices or service-oriented architecture Skilled in writing clean, well-documented code and taking ownership of the development process Comfortable working in agile , cross-functional teams Familiarity with: Docker & Kubernetes Git & version control API development (REST, GraphQL) Cloud deployment Open data platforms or search technologies Desirable Experience working 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 ❯

. Creating a developer-friendly API portal , complete with onboarding, documentation, and usage examples. Working closely with internal teams to deliver a scalable, compliant, and well-documented solution. Writing clean, well-structured code using C#/.NET Core (with possible TypeScript/JavaScript extensions). What We’re Looking For: Strong background in Microsoft Azure , including API Management … and App Services . Experience with Microsoft Teams app development or Microsoft 365 integrations . Familiarity with OpenAPI/Swagger , Postman , and developer documentation . Exposure to Infrastructure as Code (Bicep, Terraform, ARM) . Version control and CI/CD using Azure DevOps or GitHub . Bonus: Knowledge of biometric or identity-based solutions . Contract Details: Start: Immediate More ❯

platform. You'll play a key role in building performant, modern web applications that visualise complex data and integrate seamlessly with a Python/FastAPI backend. The team values clean, reliable, and maintainable code - so this is a great opportunity to make an impact in both product and technical decision Location: Remote (UK) Contract: 6 Months (likely extension … applications using React and TypeScript . Collaborate with backend engineers to integrate APIs (FastAPI, SQLModel, PostgreSQL). Optimise performance and scalability of frontend components for complex data workloads. Implement clean, reusable UI components and modern design patterns. Work closely with product and data teams to deliver user-friendly data visualisations. If you're interested, apply now for immediate consideration. 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 ❯

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 ❯