14 of 14 Contract Clean Code Jobs in London

Senior Integration Engineer

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 per day
utilize Azure Service Bus for async messaging, and manage IaC via Bicep. End-to-End Delivery: Take workstreams from requirement to production independently. Write clean Python code with pytest suites and collaborate closely with the DIP Architect, Data Engineering Lead, BAs, and QA. Candidate Profile Essential Experience: 5+ … engineering experience. Azure Core: Deep practical experience with Azure Function Apps, Logic Apps Standard, Service Bus, and APIM. Python & QA: Strong Python skills with clean code practices, error handling, and robust test coverage. AI Tooling: Active, day-to-day use of AI-assisted development (code generation ...

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 ...

Software Developer

Hiring Organisation
Experis IT
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 48,000 Annual
solutions using the Java/JEE stack, and contributing to modern, secure, and high-performing systems. You will play a key role in developing clean, reusable code, supporting live services, and mentoring junior team members while following modern engineering standards and DevOps practices. Key Responsibilities Application Development & Engineering … maintain applications using Java/JEE technologies Build and enhance web applications using frameworks and languages such as Java, Groovy, or Ruby Write clean, secure, well-tested code following test-driven development (TDD) principles Develop reusable, open, and maintainable code components Contribute to modern development standards ...

Lead AI Enabled Software/DevOps Engineer

Hiring Organisation
Guidant Global
Location
London, City of London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £850/day
Senior or Lead Software Engineer, Lead DevOps Engineer, or similar hands-on technical leadership role - Excellent software engineering fundamentals, including system design, clean code, testing, and maintainability - Strong experience designing and delivering API-driven and microservice-based systems - Proven ability to modernise or integrate legacy applications into modern ...

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 ...

Kotlin Developer

Hiring Organisation
Deutsche Bank CWS
Location
City of London, London, United Kingdom
Employment Type
Contract
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 ...

Blockchain Developer

Hiring Organisation
Pro Contract Jobs Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
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 ...

Senior Java Software Engineer (Pricing API) - 5 days - London

Hiring Organisation
Salt Search
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
this could be a great fit. What You'll Be Doing Designing and building scalable backend systems using Java and the JVM ecosystem Developing clean, maintainable code from product requirements Applying TDD/BDD practices and modern engineering principles Building and maintaining cloud-native infrastructure Working on highly ...

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 ...

SC Cleared Node.js Developer

Hiring Organisation
Sanderson Recruitment Plc
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
into effective technical designs Building APIs and Back End services using Node.js (REST, OpenAPI) Developing user-focused services, putting accessibility and usability first Writing clean, reusable, and maintainable code Working with shared/common government tech stacks (Node.js, PostgreSQL, Redis) Investigating and resolving technical issues across the stack … Ability to communicate with both technical and non-technical stakeholders Experience breaking down work, refining backlog items, and defining acceptance criteria Good understanding of clean coding principles and managing technical debt Knowledge of software architecture principles (layered design, microservices, separation of concerns) A user-focused mindset with experience building ...

Senior Frontend Developer

Hiring Organisation
Rullion - Eon
Location
London, Farringdon, United Kingdom
Employment Type
Contract
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 ...

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 ...

AI Engineer - LLM & Agentic Systems

Hiring Organisation
INTEC SELECT LIMITED
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£550 - £650 per day, Negotiable
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. ...

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 ...