17 of 17 Contract Clean Code Jobs in London

Senior Software Engineer

Hiring Organisation
Intelligent Steps
Location
London, United Kingdom
Employment Type
Contract
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 ...

Software Developer

Hiring Organisation
VIQU IT Recruitment
Location
South East London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£300 - 400 per day
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 ...

Senior AI DevOps Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
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 ...

Lead AI DevOps Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
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 ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £550 per day
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 ...

Senior Artificial Intelligence / Machine Learning Engineer

Hiring Organisation
Pro Contract Jobs Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
Competitive day rate (DOE)
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 ...

GCP Native Engineering Lead

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £530 per day + Inside IR35
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 ...

Creative WebGL Developer

Hiring Organisation
Morgan McKinley
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£350 - £500 per day
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 ...

Senior Data Engineer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
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 ...

Senior Frontend Developer

Hiring Organisation
Rullion Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
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 ...

Python Developer

Hiring Organisation
Vallum Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £525/day
Ansible Collaborate with DevOps teams to implement and maintain CI/CD pipelines Manage cloud-based infrastructure and containerized applications (Docker/Kubernetes) Write clean, efficient, and reusable code following best practices Troubleshoot, debug, and optimize application performance Ensure security, scalability, and reliability of systems ...

Senior KDB+ Developer

Hiring Organisation
Stackstudio Digital Ltd
Location
London, United Kingdom
Employment Type
Contract
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 ...

Backend Java Engineer

Hiring Organisation
Alexander Mann Solutions - Contingency
Location
London, United Kingdom
Employment Type
Contract
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 ...

Software Development Engineer in Test (SDET)

Hiring Organisation
Alexander Mann Solutions - Contingency
Location
London, United Kingdom
Employment Type
Contract
next iteration of products. Work collaboratively across our missions to define and continually improve our testing strategy for new and existing products. Develop clean, elegant, and reusable code that is easy to maintain and extend. Build scalable automated testing systems that enable us to ship value to customers ...

Front End Web Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
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 ...

IOS Developer

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 250 - 300 Daily
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 ...

Applied AI Scientist

Hiring Organisation
Guidant Global
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £800/day
Strong, demonstrable experience as an Applied AI Scientist, Data Scientist or similar hands-on technical role - Excellent Python skills, with the ability to write clean, efficient, production-quality code - Experience developing and deploying AI solutions outside of fully managed cloud services - Solid understanding of modern AI and machine ...