51 to 74 of 74 Clean Code Jobs in London

Full-Time .Net MAUI Mobile App Developer (iOS & Android) — Remote

Hiring Organisation
Astera
Location
Central London / West End, London, United Kingdom
proceed, you must be able to share links to live apps on the Apple App Store (and/or Google Play) that demonstrate clean, minimal design and polished user experience. If you cannot provide shipped app links, please do not apply. About the role We’re hiring a full …/UX implementation skills (spacing, typography, layout, interaction) Experience with REST APIs, auth flows, and state management Comfortable delivering apps that feel fast, clean, and well-finished 👉 We’re comfortable with AI-assisted development tools (e.g. Copilot, Base44, etc.) where they improve speed and quality What we’re looking ...

Principal Data Engineer

Hiring Organisation
Halian Technology Limited
Location
South East London, London, United Kingdom
Employment Type
Permanent
third-party and contract engineers Contribute to engineering communities and help define best practices Drive adoption of global standards across security, performance, and code quality Operational Performance Troubleshoot and resolve critical data issues with urgency Deliver long-term fixes rather than short-term patches wherever possible Optimise pipelines …/BigQuery Proven ability to work across both legacy systems and modern cloud environments Key Skills DevOps mindset you automate wherever possible and write clean, testable code Pragmatic approach focused on delivering value without overengineering Strong communicator confident engaging with stakeholders across the business Why Apply? High-impact ...

Frontend Developer

Hiring Organisation
Propel
Location
London Area, United Kingdom
founding-level hire. You won't be joining a large team with layers of process around you. You'll be hands-on, writing clean, confident code every day and working directly with the CTO, design and product to shape the product as it scales. What … doing: Building and shipping features across a modern React + TypeScript frontend Translating product and design requirements into clean, production-ready UI Owning features end-to-end, from implementation through to production Writing maintainable, well-structured, tested frontend code Working directly with engineering, product, and design ...

Scala Developer

Hiring Organisation
Teksystems
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £900/day
based platforms. Apply functional programming principles and Domain-Driven Design (DDD) to create maintainable, testable, and well-structured codebases. Participate actively in Agile ceremonies, code reviews, and continuous improvement initiatives to enhance delivery quality and team effectiveness. Essential Skills Strong proficiency in Scala development with a focus on writing … clean, efficient, and reliable code. Solid experience with functional programming principles and their practical application in production systems. Hands-on experience designing and building high-performance, distributed systems. Practical understanding of high-performance system patterns, including event-driven and low-latency architectures. experience working within Agile delivery teams ...

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 ...

Python Developer

Hiring Organisation
Xact Placements Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £50,000 per annum
high-impact environment where speed, quality, and innovation matter. The Role The successful candidate will: Design, build, and maintain backend services in Python , writing clean, maintainable, production-grade code. Develop and deploy AI-powered features using Azure-native services including Azure AI Foundry, Azure AI Search, Cosmos DB, Docker … within tight development cycles — branch, commit, test, and ship via GitHub-based CI/CD pipelines. Write comprehensive unit tests and contribute to high code quality standards. Collaborate within agile sprints and contribute to technical design decisions. The Ideal Candidate Our client is seeking someone with: Strong commercial experience ...

Android Developer

Hiring Organisation
Information Tech Consultants
Location
London Area, United Kingdom
Design, develop, and maintain Android applications using modern frameworks and tools Collaborate with cross-functional teams to define, design, and ship new features Write clean, efficient, and maintainable code Integrate APIs and third-party services Troubleshoot, debug, and optimize application performance Ensure application quality through testing and code ...

Senior Robotics Software Engineer

Hiring Organisation
Humanoid
Location
London, England, United Kingdom
Responsibilities Simulation Development: Design and implement high-fidelity simulation environments for robotic systems, incorporating realistic physics, sensor models, and environmental interactions. Software Engineering: Write clean, maintainable, and scalable code, utilizing modern software engineering practices and tools. Digital Twin Integration: Develop and maintain interfaces to facilitate the creation ...

Product Engineer

Hiring Organisation
Metris Energy
Location
London, England, United Kingdom
everyone’s job. What you bring Strong engineering fundamentals. We move fast but we don’t ship rubbish. You write clean, maintainable code and you care about getting the details right — from data modeling to error handling to deployment. A product mindset. You think about what … keep up. Why Join? Join an exciting, high performing team that values substance over theatre Massive ownership and impact from day one — your code ships to real customers running real energy infrastructure Work on technically challenging systems with real-world environmental impact — data ingestion, scalability, AI-driven intelligence Competitive ...

Full Stack Engineer

Hiring Organisation
Stealth Startup
Location
City of London, London, United Kingdom
audience. Think of short feedback loops, real autonomy with no committees. This is a greenfield build. You won't be maintaining anyone else's code so everything you create will also have to be thoroughly documented for future engineers as we expand the department. Key Responsibilities Development and full … document generation workflows. Implement a task and action system for an internal operations team. Develop automated data collection from multiple third-party services Write clean, documented, testable code throughout. Contribute meaningfully to product and architectural decisions. Be prepared to build and lead our tech department as we grow. ...

Full Stack Engineer - Equity

Hiring Organisation
Dental startup
Location
Central London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
team Develop automated data collection including handling login flows and MFA via browser automation Integrate with third-party services, email, and external APIs Write clean, documented, testable code throughout Contribute meaningfully to product and architectural decisions Build and lead out tech team as we grow Required Skills & Experience ...

Software Engineer

Hiring Organisation
ITHR Group plc
Location
London Area, United Kingdom
building backend services using Python and Java - Working on scalable, production‐grade systems - Collaborating closely with product and engineering teams - Contributing to architecture, code quality, and best practices What we’re looking for: - Commercial experience with Python and Java - Spring Framework - Strong problem‐solving skills and clean coding ...

Full-Stack Engineer (Angular Only + UX Focus)

Hiring Organisation
Admin Please
Location
London Area, United Kingdom
full-stack architectures from scratch Develop backend services using Encore TS (experience with Express is highly transferable and sufficient) Build and consume APIs, ensuring clean data flow between front-end and back-end Work with PostgreSQL and Prisma for data modeling and persistence Deploy and maintain services on Google … Cloud Platform (GCP) Build and maintain mobile applications using Capacitor Style applications using Tailwind CSS (and maintain existing SCSS where needed) Write clean, maintainable, and efficient code across the stack Debug, troubleshoot, and optimize performance for a seamless user experience Collaborate closely with the founding team on product ...

Senior AI Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
looking for a hands-on Senior AI Engineer to build and deploy cutting-edge Generative AI applications. You will be responsible for the code-level implementation of autonomous agents, RAG pipelines, and custom model fine-tuning. Working closely with architects and data teams, you will turn conceptual designs into … domain-specific tasks. · Performance Engineering: Optimise latency and throughput of AI applications. Implement caching strategies and use SageMaker Endpoints for efficient inference scaling. · Code Quality & DevOps: Write clean, testable Python code. Build CI/CD pipelines for AI models and manage prompt versioning and evaluation metrics. Technical Skills ...

Lead RPG Developer (IBM i)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Permanent
expectations, and secure coding practices. Key Responsibilities Gather and document requirements and user stories aligned with business needs and solution architecture Develop high-quality, clean, and testable RPG code in accordance with development standards Ensure all development adheres to secure coding principles and the Bank's IT Development ...

Principal Platform Engineer

Hiring Organisation
Ncounter
Location
Canary Wharf, London, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £170,000 per annum
Bonus: Slurm, HPC What they’re looking for 8+ years engineering with Python or Go Strong systems engineering mindset Confident in design discussions, delivering clean and reliable code Keen to learn, contribute and shape technical direction This is a chance to build greenfield Observability services ...

Software Engineer

Hiring Organisation
Platform Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £115000/annum
Location : Remote (London office) Salary : £80,000 - £115,000 Skills : C++, Algorithms, Boost Overview : Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part of an internationally recognised team of C++ experts led by the brightest … year 2. About you : STEM degree from a top university OR commercial C++ expertise Significant bias towards C++ development Genuine passion for writing clean, performant code Bonus if : Commercial C++ experience Have worked on open-source projects Have an activity portfolio of personal C++ projects Full details ...

Software Engineer C++

Hiring Organisation
Platform Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Location : Remote (London office) Salary : £80,000 - £115,000 Skills : C++, Algorithms, Boost Overview : Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part of an internationally recognised team of C++ experts led by the brightest … year 2. About you : STEM degree from a top university OR commercial C++ expertise Significant bias towards C++ development Genuine passion for writing clean, performant code Bonus if : Commercial C++ experience Have worked on open-source projects Have an activity portfolio of personal C++ projects Full details ...

Flutter mobile app engineer

Hiring Organisation
Tewke
Location
London, England, United Kingdom
APIs - Ability to work independently - Good working knowledge of Git and experience with version control software from providers such as GitHub or GitLab - Write clean, efficient, and reusable code Nice to have: - Experience as a full stack engineer to work across cloud and app infrastructure - Experience publishing apps ...

Data Scientist

Hiring Organisation
Wave Group
Location
Greater London, England, United Kingdom
shift energy consumption to times when it's cheaper and greener. This is 50/50 data science and production engineering. You'll write clean Python code, deploy on cloud, and work in Docker. You won't live in notebooks. You will see your work used by real ...

User Experience Designer

Hiring Organisation
JSS
Location
London Area, United Kingdom
month contract, outside IR35, 3 days/week on-site Design and build user-friendly web & mobile interfaces Turn wireframes into clean front-end code (React/Vue/Angular) Collaborate with product & engineering, conduct user research Ensure accessibility & design consistency Requirements: UX design + front ...

C++ Trading Platform Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
core infrastructure The tech stack is primarily C++ and Python, running on Linux across both development and production. The focus is on writing clean, scalable, high-performance code and continuously improving system reliability and speed. This is a hands-on engineering role with direct exposure to traders ...

Commercial AI & Data Lead

Hiring Organisation
TalentPool
Location
City of London, London, United Kingdom
What we’re looking for Experience building production AI/multi-agent systems (LangChain, LangGraph, CrewAI, AutoGen, etc.) Strong Python engineering skills (clean, production-grade code) Hands-on experience with cloud data platforms (Snowflake preferred) Ability to translate complex AI systems into clear commercial impact 4–9 years ...

Senior AI Engineer £700 p/d | Outside IR35 | Central London

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £750 per day
processes (approvals, performance workflows, document generation, analytics, etc.). Proven experience building AI agents and multi-step automation flows. Strong hands-on engineering skills (clean, explainable, well-structured code). Expertise using ChatGPT Enterprise for workflow automation. Skilled in designing prompts, guardrails, and evaluation logic for reliable outputs. ...