Contract Clean Code Jobs in the UK

1 to 25 of 40 Contract Clean Code Jobs in the UK

AI Software Developer (Python, JavaScript, ML)

London, United Kingdom
Salt
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 ❯
Employment Type: Contract
Rate: £500 - £800 per day
Posted:

AI Software Developer Python, JavaScript, ML

London, South East, England, United Kingdom
Salt Search
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 ❯
Employment Type: Contractor
Rate: £500 - £800 per day
Posted:

Senior Software Engineer

Cheshire, United Kingdom
The Bridge IT Recruitment
Design and implement RESTful APIs and Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure software quality through unit and integration testing Perform code reviews More ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Senior Software Engineer

Cheshire, Ellesmere Port Town, United Kingdom
The Bridge IT Recruitment
Design and implement RESTful APIs and Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure software quality through unit and integration testing Perform code reviews More ❯
Employment Type: Contract
Posted:

Lead Software Engineer

United Kingdom
Hybrid / WFH Options
Networker Global Limited
complex software systems Set coding standards and champion best practices across the team Collaborate on product strategy and translate business needs into technical solutions Mentor and support engineers through code reviews, pairing, and career development Own delivery timelines and ensure high-quality releases Evaluate and introduce new technologies to improve performance and developer experience Requirements : 7+ years of software … architecture, cloud infrastructure (AWS/GCP/Azure), and CI/CD pipelines Proven ability to lead teams, manage projects, and communicate effectively across disciplines A passion for mentoring, clean code, and continuous improvement Bonus: Experience with microservices, containerization (Docker/Kubernetes), or data-intensive applications With Myn, you gain a trusted partner dedicated to helping experienced data More ❯
Employment Type: Contract
Rate: £200 - £450 per day
Posted:

Hedge Fund Trading - Contract Python Developer - Futures, FX, Credit, PnL, Data eng, AWS, Javascript

London, United Kingdom
Scope AT Limited
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 ❯
Employment Type: Contract
Rate: GBP Annual
Posted:

Software Djongo Developer

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
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 ❯
Employment Type: Contractor
Rate: £400 per day
Posted:

Software Engineer

Bristol, Avon, South West, United Kingdom
Oscar Associates (UK) Limited
Python, JavaScript, React, Node.js, and TypeScript Develop and optimise APIs, services, and integration layers. Deliver end-to-end features across back-end, front-end, and cloud-hosted environments. Write clean, efficient, and maintainable code following best practices. Contribute to code reviews, testing, and Agile ceremonies. Troubleshoot and resolve application-level performance and reliability issues. Key Skills: Commercial More ❯
Employment Type: Contract
Rate: £350 - £450 per day
Posted:

Contract Software Engineer / Lead Developer - Expert

South Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
itecopeople
production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data structures. Collaborate with other engineers, mentoring and sharing knowledge. Produce maintainable, clean code based on the 'less is more' principle. Essential Skills & Experience Expert in TypeScript or a similar software development language , with strong back-end development experience. Extensive experience … of TDD and SOLID principles. Minimum 5 years' experience in software development/software engineering Excellent technical communication skills. Able to take a concept from discussion to high-quality code delivery. Desirable Degree in Computer Science, Software Engineering, or related discipline highly desirable Experience in high-performance or complex systems. Familiarity with algorithmic analysis and performance optimisation. Work Arrangements More ❯
Employment Type: Contract, Work From Home
Rate: £680.0 - £710.0 per day + IN SCOPE OF IR35
Posted:

Senior C#/Angular Developer - Commodities, Trading

London, South East, England, United Kingdom
Harvey Nash
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 ❯
Employment Type: Contractor
Rate: £600 - £750 per day
Posted:

Senior C#/Angular Developer - Commodities, Trading

London, United Kingdom
Harvey Nash
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 ❯
Employment Type: Contract
Rate: £600 - £750/day
Posted:

Contract Vue / PHP Developer

Oxford, Oxfordshire, England, United Kingdom
Opus Recruitment Solutions Ltd
Months? IR35 Status: Outside IR35? Rate: £250–£300/dayOpus is working with a fast-paced start-up. If you're a full-stack developer who thrives on clean code, collaborative teams, and modern frameworks—this one's for you!??? Tech Stack PHP (Laravel/Symfony)?? Vue.js? MySQL? PHPUnit? AWS (nice to have)?? Interested? Apply now or send More ❯
Employment Type: Contractor
Rate: £250 - £300 per day
Posted:

Full Stack Software Engineer

London, United Kingdom
Hybrid / WFH Options
Experis
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 ❯
Employment Type: Contract
Rate: £750 - £880/day
Posted:

Contract Senior Backend Software Engineer - Node.js

Leeds, West Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
Fruition Group
maintain backend services, APIs, and databases. Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. Ensure systems are scalable, reliable, and maintainable. Write clean, testable, and efficient code following best practices. Requirements: Strong JavaScript/TypeScript Strong programming skills in Node.js Solid understanding of RESTful APIs, microservices, and event-driven architecture. Hands More ❯
Employment Type: Contract
Rate: £500 - £550 per day
Posted:

Contract Senior Software Engineer - Vue.js

Leeds, West Yorkshire, Yorkshire, United Kingdom
Hybrid / WFH Options
Fruition Group
our customers. Key Responsibilities: Develop and maintain front-end applications using Vue.js (Vue 3 preferred) Work closely with backend and design teams to deliver features end-to-end Write clean, efficient, and reusable code following modern best practices Optimise applications for performance, accessibility, and scalability Contribute to UI/UX improvements and front-end architecture decisions Requirements: Strong More ❯
Employment Type: Contract
Posted:

Research Assistant

North London, London, United Kingdom
Hybrid / WFH Options
Lancesoft Ltd
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 ❯
Employment Type: Contract
Rate: £42.79 per hour
Posted:

TypeScript Engineer NextJs, React - London/Hybrid

London, South East, England, United Kingdom
Hybrid / WFH Options
Noir
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 ❯
Employment Type: Contractor
Rate: £400 - £450 per day
Posted:

Scala Developer - Remote Work (Inside of IR35)

United Kingdom
Hybrid / WFH Options
Stealth IT Consulting
enjoys working with modern technologies and solving complex problems at scale. Key Responsibilities Design, develop, and maintain Back End microservices using Scala . Implement functional programming principles to write clean, testable, and maintainable code. Build and integrate RESTful APIs and event-driven components. Collaborate with DevOps and platform teams to deploy services to the cloud (AWS/Azure) . … Write unit, integration, and performance tests to ensure high code quality. Participate in code reviews, architecture discussions, and Agile ceremonies. Work closely with stakeholders to understand requirements and contribute to technical design. Support continuous improvement by sharing knowledge and promoting best practices. Essential Skills & Experience Proven experience as a Scala Developer in production environments. Strong understanding of functional More ❯
Employment Type: Contract
Rate: GBP 450 Annual
Posted:

Software Engineer (II)

London, United Kingdom
Hybrid / WFH Options
Randstad Technologies Recruitment
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 ❯
Employment Type: Contract
Rate: £45 - £49/hour
Posted:

Software Engineer II

London, South East, England, United Kingdom
Hybrid / WFH Options
Randstad Technologies
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 ❯
Employment Type: Contractor
Rate: £45.00 - £49.00 per hour
Posted:

Software Engineer

Newcastle Upon Tyne, Tyne and Wear, North East, United Kingdom
IO Associates
within our Agile Scrum team, developing cutting-edge geospatial software and delivering scalable, cloud-based solutions across the full software development lifecycle. Skills & Experience: Proven Java development experience with clean, scalable code Strong background in Cloud Services development (AWS/Azure/GCP) Proficient in unit and automated testing Familiar with DevSecOps tools (Tekton, ArgoCD, SonarQube) Experience in More ❯
Employment Type: Contract
Rate: £50 - £55 per hour
Posted:

MiFID Project Manager

City of London, London, United Kingdom
Adecco
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 ❯
Employment Type: Contract
Rate: £800 - £870/day
Posted:

UX Engineer

Manchester, United Kingdom
Hybrid / WFH Options
Adecco
experiences across digital products Build interactive, reusable UI components using React and TypeScript , following best practices for scalability and performance Translate Figma designs and UX specifications into production-ready code with pixel-perfect precision Troubleshoot UI issues, improve performance, and ensure a smooth, intuitive user experience across platforms Essential Skills & Experience Proven experience as a UX Engineer or similar … and testing frameworks (e.g. Jest, Testing Library) Comfortable working in agile environments with cross-functional teams Excellent attention to detail and ability to bring design concepts to life through clean, maintainable code More ❯
Employment Type: Contract
Posted:

UX Engineer

Manchester, Lancashire, England, United Kingdom
Hybrid / WFH Options
Adecco
experiences across digital products Build interactive, reusable UI components using React and TypeScript , following best practices for scalability and performance Translate Figma designs and UX specifications into production-ready code with pixel-perfect precision Troubleshoot UI issues, improve performance, and ensure a smooth, intuitive user experience across platforms Essential Skills & Experience Proven experience as a UX Engineer or similar … and testing frameworks (e.g. Jest, Testing Library) Comfortable working in agile environments with cross-functional teams Excellent attention to detail and ability to bring design concepts to life through clean, maintainable code More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Software Engineer - Python Contract

London, South East, England, United Kingdom
Harnham - Data & Analytics Recruitment
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 ❯
Employment Type: Contractor
Rate: £700 - £800 per day
Posted:
Clean Code
10th Percentile
£346
25th Percentile
£413
Median
£500
75th Percentile
£603
90th Percentile
£725