1 to 25 of 26 Contract Clean Code Jobs in England

Looking for a Senior Java Developer that has worked with Kotlin. The ideal candidate should be passionate about clean code and scalable solutions. This opportunity will allow you to design robust Microservices Architecture, within an automated data-heavy environment. This will be an initial 6 month contract with … DevOps methodologies and scalable CI/CD pipelines Microservices Architecture Exposure to Big Data technologies such as: Kafka, Spark, Hadoop etc Strong understanding of clean code principles Experience working with AWS Cloud Kotlin experience (preferred ...

other stakeholders to refine, clarify and prioritise requirements. Establish a comprehensive testing strategy covering unit, integration, end-to-end, performance and resilience testing. Write clean, reusable and testable code, including unit and integration tests using Vitest and Cypress. Participate in CI/CD pipelines for frontend builds, including … code reviews and release processes. Document components, patterns and frontend architecture to support knowledge sharing and maintainability. Contribute to coding standards and best practices across the frontend codebase. Use Git, package managers such as npm or pnpm, and build tools as part of the daily development workflow. Essential Skills ...

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 ...

where appropriate Use AI tools to improve engineering productivity - while maintaining full accountability for quality, safety, and correctness Review, validate, and guide AI-generated code and outputs , ensuring they meet real engineering and operational standards Build services in TypeScript and Python , supported by strong testing and clean code practices Package, deploy, and operate workloads using Kubernetes (e.g. Helm) and Infrastructure as Code (e.g. Terraform) Work closely with other engineers, platform teams, and AI specialists to deliver integrated, end-to-end solutions Take responsibility for systems running in production , not just code that passes a build ...

Strong background as a Senior or Lead Software Engineer, Lead DevOps Engineer , or similar hands-on leadership role Excellent software engineering fundamentals: system design, clean code, testing, and long-term maintainability Deep experience designing and delivering API-driven and microservice-based systems Proven ability to modernise or integrate ...

Hibernate development practices Proven ability to build microservices and reliable RESTful APIs Hands-on experience applying TDD and BDD testing approaches Good understanding of clean coding principles, SOLID, and cloud technologies Previous experience in Finance/Fintech/Payments is highly beneficial Key Responsibilities Design, implement, and thoroughly test ...

continuous refactoring. Engineers are expected to contribute across development, integration, and production support, working closely as a team to maintain a high standard of code quality and system reliability. The skills you'll need: Strong commercial experience building backend services in Kotlin Experienced with event sourced and event driven … architecture Deep experience withXP practices, including: Mob programming as a primary way of working Test-driven development (TDD) Continuous refactoring and clean code discipline Cloud experience in CARE Cloud/GCP, including: GKE and/or Cloud Run Cloud SQL, Memorystore Artifact Registry, Cloud Logging Key Management ...

cutting edge blockchain company building an Ethereum platform aimed at decentralising parts of traditional financial services. On a remote contract you could support a clean technology organisation building a carbon offset tokenisation system using Hyperledger Besu, with smart contracts, APIs, and audit ready delivery. What you will … production or advanced side projects. You understand core Web3 patterns such as transactions, events, wallets, token standards, and common security pitfalls. You can write clean code, break down complex problems, and collaborate with product and engineering teams to ship outcomes. You are confident with NodeJS and modern JavaScript ...

near real-time data pipelines Solid understanding of distributed systems, scalability, and data processing Background in software engineering best practices (testing, CI/CD, clean code) Nice to Have Experience in banking, compliance, or regulated environments Exposure to high-volume transactional or voice data systems ...

practices to keep models stable, observable and maintainable in production. To be successful, you will have strong Python experience and proven ability to write clean, secure and performant code, with practical expertise using modern ML frameworks and libraries. You will have delivered production-grade ML systems in customer ...

tasks, driving excellence in automated and non-functional testing including performance, security, accessibility, and usability. Design, build, and maintain robust test automation frameworks with clean, reliable code. Collaborate with junior QA Engineers and manual testers, guiding them in modern testing practices and engineering principles. Ensure consistent governance, design … code quality in line with software standards and technology strategy. Create detailed test scenarios and cases, analyzing non-functional specifications for performance, accessibility, and security testing. Maintain traceability from test cases back to requirements, producing automation scripts and regression test packs. Work with stakeholders to ensure all test data ...

lead engineering and design discussions. Experience working on medium to high complexity systems with minimal supervision. Strong understanding of quality-driven development, including clean code and maintainable design. Ability to collaborate effectively within a team and mentor junior engineers. Reasonable Adjustments: Respect and equality are core values ...

space. This is a craft-led role for a developer who cares as much about visual quality, motion and storytelling as they do about clean, performant code. You'll be taking beautifully designed concepts and bringing them to life through real-time 3D and interaction-rich web experiences.You ...

RESTful APIs across web and mobile platforms Working on high-throughput, transaction-driven systems Collaborating with product managers, frontend engineers, and QA teams Writing clean, maintainable, testable code Supporting CI/CD pipelines and cloud deployments Contributing to technical discussions and feature design What we need Strong commercial ...

data engineering framework Build, enhance, and maintain data pipelines within Snowflake Develop transformations and data models using DBT Orchestrate workflows using Apache Airflow Write clean, modular Python code for data engineering solutions Improve pipeline reliability, performance, and observability Introduce and embed CI/CD, testing, and deployment best ...

complex enterprise environment. This role is suited to someone who enjoys solving real business problems through strong engineering practices, modern architecture, and clean, scalable code. Youll work across the full software development lifecycle, partnering closely with product, architecture, QA, and production teams to deliver resilient, high-quality solutions. … secure, scalable Java-based applications Build and support high-availability microservices and distributed systems Translate business requirements into technical solutions and engineering designs Perform code reviews, debugging, testing, and production issue resolution Collaborate across Agile teams to deliver key roadmap milestones Work closely with QA and stakeholders to ensure ...

Kotlin and/or Java Collaborate with UX designers, product owners, and Back End developers to translate requirements into robust, accessible mobile experiences Write clean, testable, well-documented code following established coding standards and architectural patterns Implement and maintain CI/CD pipelines for automated builds, testing … deployment Ensure applications meet WCAG 2.2 accessibility standards and GDS service standards Conduct code reviews and contribute to engineering best practices within the team Integrate with RESTful APIs and Back End services, working closely with API developers Troubleshoot and resolve performance issues, crashes, and production defects Support Google Play ...

maintain scalable, responsive applications using React.js, React Native, and TypeScript Work closely with UX/UI designers to deliver intuitive and engaging interfaces Write clean, efficient, and maintainable code following best practices Optimise applications for performance and scalability Participate in code reviews to ensure high development standards … using version control systems, particularly Git Solid understanding of HTML, CSS, and responsive design principles Strong debugging and performance optimisation skills Ability to produce clean, modular, and well-documented code Excellent communication and collaboration skills Rullion celebrates and supports diversity and is committed to ensuring equal opportunities ...

Engineer or Python-focused MLE. Excellent hands-on Python engineering skills, with strong fundamentals across OOP, async/concurrency, decorators, design patterns and clean code. Comfortable with Python-heavy technical discussions and building/debugging code without heavy reliance on AI tooling or Internet-based support. Experience building … clean, well-tested, production-quality AI/ML systems. Experience designing, building and deploying machine learning or GenAI systems into production. Strong experience with testing, validation and Python unit testing, ideally using pytest. Experience with GenAI/LLMs, including RAG pipelines, embeddings, vector databases and agentic workflows. Ability ...

disk I/O, and network considerations across kdb+ processes. Develop robust and reusable q libraries, utilities, and frameworks with a strong focus on clean, maintainable, and performant code. Drive continuous improvement through refactoring, performance benchmarking, and adoption of best practices. Mentor and guide junior and mid-level developers … fostering a culture of technical excellence, code quality, and knowledge sharing. Participate in design reviews, production support, and root cause analysis of complex system issues. Work collaboratively within an Agile or iterative delivery environment, contributing to design, implementation, testing, and release phases. Required Skills & Experience 8+ years of hands ...

Spark or serverless architectures Core responsibilities and skills Build and maintain real-time and batch ETL pipelines using Python on large, complex datasets Write clean, scalable Python code for data ingestion, transformation, and processing Design and optimise SQL queries for performance, cost, and reliability across large data volumes … Work with distributed data processing tools such as Apache Spark to handle high-volume workloads Improve existing pipelines by identifying bottlenecks and refactoring code and queries Develop and maintain data workflows, scheduling, and orchestration processes Provision and manage AWS infrastructure using Infrastructure as Code tools such as Terraform ...

Purpose of the role: Join one of the core cross functional mission teams to build and develop technology products. What you'll do: Develop clean, elegant, and reusable code that is well tested and easy to maintain and extend. Work with stakeholders across the business to drive ...

multi-step reasoning - RAG systems that actually deliver, not just proofs of concept. Strong Python skills and solid machine learning foundations - able to write clean, production-grade code with a firm grasp of system design principles. Cloud deployment experience across AWS, GCP or Azure, using modern engineering practices. ...

using React, modern JavaScript, HTML, and CSS. * Build scalable, component-based front-end architectures for single-page applications. * Translate UI/UX designs into clean, efficient, and maintainable code. * Integrate and manage content-driven experiences using Payload CMS. * Collaborate with designers, developers, and stakeholders to deliver seamless digital experiences. … Optimise application performance and ensure cross-browser compatibility. * Identify, troubleshoot, and resolve front-end issues efficiently. * Follow best practices in front-end development, including code quality, testing, and performance optimisation. * Stay up to date with modern front-end technologies, tools, and CMS-driven architectures. Profile * The Front ...

mobile applications in agile environments. SwiftUI experience is essential for this role. Job Responsibilities/Objectives Design, develop, and maintain native iOS applications Build clean, scalable, and maintainable code using Swift and SwiftUI Integrate mobile applications with RESTful APIs and Back End services Optimise application performance, responsiveness … ensure application quality Support accessibility standards and best practices across applications Collaborate closely with cross-functional teams including Product, QA, and Engineering Participate in code reviews and contribute to technical discussions and decision-making Required Skills/Experience The ideal candidate will have the following: Strong experience with Xcode ...