1 to 25 of 543 Clean Code Jobs in the UK

Senior Software Engineer (Java/Kotlin)

Hiring Organisation
Morgan McKinley
Location
Manchester, Lancashire, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £595.00 per day
developers, product managers, and QA specialists. Key Responsibilities End-to-End Delivery: Take ownership across full feature lifecycles, from refining Agile requirements to writing clean code, deploying, and monitoring in production. Core Backend Development: Deliver resilient features using Java or Kotlin, including serverless architecture with AWS Lambda. Code Quality & Testing: Write clean, testable code with a strong emphasis on automated unit testing (supported by embedded QA resources). Cross-Functional Collaboration: Navigate dependencies and communicate blockers clearly to technical and business stakeholders. Technical Requirements Core Stack: Senior-level experience in Java OR Kotlin (experience ...

Senior Software Engineer

Hiring Organisation
Pure Resourcing Solutions Limited
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
performance data processing systems in a production-focused environment. This role is centred on software engineering rather than modelling , with a strong emphasis on clean code, Test-Driven Development (TDD), and scalable data processing . Key Responsibilities Develop and maintain production-grade Python applications. Build high-throughput data … processing pipelines handling large datasets on local server infrastructure. Design and implement robust multithreaded and multiprocessing solutions. Write clean, maintainable code within a TDD environment. Optimise performance across CPU, memory, and I/O intensive workloads. Essential Experience Strong commercial Python development experience. Expert knowledge of multithreading, multiprocessing ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, UK
Employment Type
Full-time
solutions end-to-end, from technical design and architecture through to production deployment, monitoring, support, and continuous improvement. Champion engineering best practices across code quality, testing, CI/CD, observability, maintainability, and operational resilience. Mentor and guide junior and mid-level engineers, setting high technical standards through code … using Angular or React, with a focus on reliable, maintainable, and responsive UI delivery. Strong understanding of software engineering best practices, including automated testing, clean code, code reviews, CI/CD, observability, and secure development practices. Experience deploying and operating production-grade systems in cloud or hybrid ...

Data Scientist

Location
Greater London, England, United Kingdom
environment. Strong predictive modeling foundation: Extensive experience with traditional ML algorithms, Deep Learning frameworks, and complex time-series forecasting. Experience developing production-grade Python code: High proficiency in Python, Pandas, and modern software practices (testing, clean code, code review, CI/CD). Data & Pipeline Expertise ...

Data Scientist

Hiring Organisation
Anaplan
Location
London, UK
Employment Type
Full-time
environment. Strong predictive modeling foundation: Extensive experience with traditional ML algorithms, Deep Learning frameworks, and complex time-series forecasting. Experience developing production-grade Python code: High proficiency in Python, Pandas, and modern software practices (testing, clean code, code review, CI/CD). Data & Pipeline Expertise ...

Senior Software Engineer I - Search and AI Platform

Hiring Organisation
Elsevier
Location
London, UK
Employment Type
Full-time
with databases, web services, or AWS services (Neo4j, DynamoDB, RDS, S3, Parameter Store, SQS, SNS, Kinesis) to support ingestion, storage, and messaging pipelines. Champion clean code, SOLID principles, and engineering best practices, setting standards and mentoring engineers. Collaborate with product managers and engineering teams to deliver advanced search … cloud-native architectures with AWS and Kubernetes (EKS). An advocate of best practices for rapid development of quality software, including SOLID principles, clean code, architectural design patterns, CI/CDFamiliarity with Agile, Kanban, or other iterative development methodologies. Comfortable learning new technologies, languages, and tools ...

Senior Frontend Engineer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
/CD pipelines, automated testing, and versioning strategies for SDKs. Experience with frontend performance optimization, cross-browser compatibility, and accessibility standards. Passion for clean code, automation, and continuous improvement. Excellent interpersonal skills and a passion for developer experience and security. ROLE PROFILE:We are seeking a Senior Frontend …/CD pipelines, automated testing, and versioning strategies for SDKs. Experience with frontend performance optimization, cross-browser compatibility, and accessibility standards. Passion for clean code, automation, and continuous improvement. Excellent interpersonal skills and a passion for developer experience and security. Common FOOTERWhat you'll get in return ...

Lead Integration Engineer – 12 Month FTC

Location
West of England, England, United Kingdom
error handling, retry and replay mechanisms Experience working across complex technology estates with multiple source and consuming systems Knowledge of software engineering principles including clean code, testing, version control and CI/CD Technical documentation skills and ability to communicate complex integration concepts to stakeholders Core Competencies Demonstrates … Operational Support Technical Leadership ATS Optimization Keywords Hard Skills Integration Development API Management Error Handling Mechanisms Asynchronous Communication Messaging Systems Distributed Systems Technical Documentation Clean Code Principles CI/CD Practices Version Control Soft Skills Technical Mentoring Collaboration Communication Industry Keywords Integration Patterns Interface Contracts Schemas Service Interoperability ...

Senior Software Engineer

Location
United Kingdom
Drive Impact: Collaborate with business stakeholders to understand requirements and translate them into possible improvements to our product. Build Great Software: Design and develop clean, maintainable, and high-quality software. Conduct code reviews and contribute to a culture of technical excellence. Shape Architecture: Collaborate on system design, tech … Science or equivalent practical experience. 5+ years of experience in a software engineering role. Passionate about software craftsmanship: Strong understanding of software development principles, Clean Code and Clean Architecture. Product thinking: Ability to translate business problems into precise requirements, specifications and ultimately into code. Entrepreneurial mindset: link ...

PHP Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
Basingstoke, Hampshire, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £55,000 per annum
CakePHP. Deliver features across development, testing, and deployment. Maintain and enhance existing and legacy CakePHP applications. Build and support APIs and backend services. Write clean, maintainable code following best practices. Contribute to code reviews, automated testing, and CI/CD. Support system design, integrations, and technical improvements. … CSS. Experience with Git, branching, and pull requests. Familiarity with Docker and Linux/WSL environments. Experience with unit and automated testing. Understanding of clean code, software design principles, and coding standards. Exposure to Vue.js/Nuxt, Azure, CI/CD, messaging, or microservices is a plus. ...

Senior Java Developer

Hiring Organisation
Bright Purple Resourcing
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs, reporting tools and the client portal; bring AI into the development lifecycle; adapt third-party trading systems as the business requires; and write clean, thoroughly tested code grounded in SOLID principles, Design Patterns and Clean Code. You'll also work with microservices and event-driven architectures … cloud platforms such as AWS, Azure or GCP, and infrastructure-as-code tools like Terraform. Testing coverage will rely on JUnit, Spock and Mockito, applying TDD and BDD along the way, and you'll take part in code reviews that help raise the bar across the team. ...

Senior Java Developer

Hiring Organisation
Bright Purple Resourcing
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs, reporting tools and the client portal; bring AI into the development lifecycle; adapt third-party trading systems as the business requires; and write clean, thoroughly tested code grounded in SOLID principles, Design Patterns and Clean Code. You'll also work with microservices and event-driven architectures … cloud platforms such as AWS, Azure or GCP, and infrastructure-as-code tools like Terraform. Testing coverage will rely on JUnit, Spock and Mockito, applying TDD and BDD along the way, and you'll take part in code reviews that help raise the bar across the team. ...

Senior Java Developer

Hiring Organisation
Bright Purple Resourcing
Location
Aberdeen, Aberdeenshire, Scotland, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
APIs, reporting tools and the client portal; bring AI into the development lifecycle; adapt third-party trading systems as the business requires; and write clean, thoroughly tested code grounded in SOLID principles, Design Patterns and Clean Code. You'll also work with microservices and event-driven architectures … cloud platforms such as AWS, Azure or GCP, and infrastructure-as-code tools like Terraform. Testing coverage will rely on JUnit, Spock and Mockito, applying TDD and BDD along the way, and you'll take part in code reviews that help raise the bar across the team. ...

Senior Platform Engineer

Location
Reigate, England, United Kingdom
successful in this role with experience in delivering large scale Cloud services. The Role: Provide technical input, guidance and leadership to the team (including code quality, best practices, processes, some aspects of release management, etc.). Assist in the design and documenting of solutions meeting functional and non-functional … implementation, unit and system testing, deployment, operations, monitoring and incident management. Software engineering fundamentals Strong grounding in object oriented design, design patterns, SOLID principles, clean code practices, code review, documentation and Agile delivery. Core technical stack Hands‐on experience with C# and .NET (Core/6+ ...

Senior Engineer, Risk Engineering

Location
United Kingdom
products and risk models.* Continuous Codebase Optimization: Actively optimize and refactor the existing codebase to enhance automated testing, performance, and maintainability.* Engineering Excellence: Write clean, well-documented code, participate actively in code reviews, and champion agile best practices within the team.**What You’ll Bring*** Professional Experience … unit/integration testing, TDD, and exposure to simulation or stress testing.* Software Design Fundamentals: Well-versed in Agile methodologies, design patterns, DRY principles, Clean Code, and microservices architecture.* Technical Ecosystem: Proficient with modern DevOps and cloud tools, including Git, Docker, Kubernetes, and cloud platforms (GCP preferred). ...

Software Engineer (Applied AI)

Location
Greater London, England, United Kingdom
tech stack : You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ML work. Live on the cutting edge of AI tooling : You’ll help push the boundary … paced iterative environment : Collaborate closely with design, product, and beyond to deliver and iterate on impressive features and prototypes at world-class pace. Keep code clean and well-tested : Maintain clean, efficient, and tested code with clear documentation for both peers and future reference. Review, refine ...

Full Stack Software Developer

Hiring Organisation
We Are Dcoded Limited
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
with the web codebase where sensible. Using AI coding tools as part of your workflow critically reviewing, testing, and taking ownership of AI-generated code rather than accepting it uncritically. Participating in code review, architectural discussions, and establishing engineering practices and standards as an early hire. Helping build … culture of strong engineering discipline including clean code, sound OOP design, and a proper test pyramid in a company operating in a regulated, data-sensitive industry. Skills and Experience Essential Strong engineering fundamentals: SOLID, DRY, Law of Demeter, and the reasoning behind them, not just the acronyms. Good ...

Full Stack Software Engineer III - Java

Location
Greater London, England, United Kingdom
businesses — and we're looking for engineers who take ownership, raise the bar, and grow fast. You'll work in a culture of strong code reviews, fast feedback, and scalable architecture, with real opportunities to deepen your technical influence and shape the future of financial technology. As a Software … within the Global Banking Technology team, you will own end-to-end delivery of secure, full stack features — turning requirements into solid designs, shipping clean Java code, and improving services built on microservices, Kafka/event-driven patterns, and CI/CD pipelines. You will troubleshoot complex production ...

Python Software Engineer

Location
Greater London, England, United Kingdom
client-facing platform. You’ll work closely with other engineers and cross-functional teams, take ownership of complex problems, and ship production-ready code that has real business impact. You’ll also contribute to design and architecture discussions and help maintain high standards for code quality and system … party systems, including asynchronous processing and event-driven architecture Shape technical direction, contribute to architectural decisions, and plan for scalability, performance, and reliability Write clean, pragmatic code with a strong focus on maintainability, observability, and security Investigate complex issues across distributed systems, identify root causes, and drive long ...

Senior Software Engineer (Java + Vue/Typescript)

Location
Leeds, England, United Kingdom
Saving Expert, building digital products and services that make a difference while always putting people first. We’re a team of creators. We write code, shape delivery, build go-to-market strategies, develop AI solutions and create the practices that support our people. We work side by side with … performant and aligned with best practices. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Champion engineering excellence through clean code, automated testing, documentation and code reviews. Drive delivery across multiple initiatives while balancing speed, quality and commercial value. Mentor engineers through ...

Senior Software Engineer (Java + Vue/Typescript)

Location
City of Edinburgh, Scotland, United Kingdom
Saving Expert, building digital products and services that make a difference while always putting people first. We’re a team of creators. We write code, shape delivery, build go-to-market strategies, develop AI solutions and create the practices that support our people. We work side by side with … performant and aligned with best practices. Develop and evolve RESTful APIs with a focus on security, versioning, performance and reliability. Champion engineering excellence through clean code, automated testing, documentation and code reviews. Drive delivery across multiple initiatives while balancing speed, quality and commercial value. Mentor engineers through ...

Senior Software Engineer, Full-Stack Applications (Python)

Hiring Organisation
Fitch Ratings
Location
Manchester, UK
Employment Type
Full-time
applications – Build robust, scalable applications using Python (FastAPI/Flask), and ReactJS following best practices and design patterns Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews Work … other engineers to understand requirements and deliver solutions that meet business needs Apply engineering best practices – Follow SOLID principles and design patterns, participate in code reviews, solve technical challenges, and contribute to code quality Support and improve systems – Troubleshoot production issues, optimize performance, and help ensure reliability ...

Senior Software Engineer - .Net

Location
Bristol, England, United Kingdom
wider business to ensure your team is building the right solutions in the right way. Ensure outcomes are identified and measured for success. Conduct code reviews, enforce coding standards, and ensure the quality and maintainability of the codebase. Identify and resolve performance bottlenecks in applications and optimize … stakeholders to help drive fast decisions. Cloud and DevOps Extensive experience with AWS cloud architecture and services. Experience with automated testing, and infrastructure as code (IaC) using tools like AWS CDK, Terraform etc. Design Principles Strong understanding of good coding and testing practices such as clean code ...

Senior Java Developer

Hiring Organisation
Synnovate
Location
London, United Kingdom
Employment Type
Permanent
Salary
£115000 - £125000/annum Hybrid Working
maintain in-house systems, APIs, reporting tools and the client web portal Customise and extend third-party trading systems to meet business requirements Write clean, well-tested code following SOLID principles, Design Patterns and Clean Code practices Apply TDD and BDD methodologies; maintain test coverage using … JUnit, Spock and Mockito Participate in code reviews and contribute to continual improvement of engineering standards Manage and mentor a team of Java (and other) developers, supporting growth and career development Liaise with various stakeholders (IT and Business) to understand requirements and propose solutions to senior stakeholders Essential 6+ ...

Software Engineer – Ads & Commercial Development

Location
Greater London, England, United Kingdom
Docker containers, Kubernetes (K8s) , and building robust CI/CD pipelines . Software Engineering Fundamentals: Excellent command of data structures, algorithms, system design, and clean code architectures. Capabilities: Performance Optimisation: Ability to profile, debug, and optimize code to execute with minimal CPU and memory footprints in highly … Solving: Capability to diagnose complex, asynchronous race conditions across different browser environments and vendor scripts. Cultural Add: Engineering Excellence: You take pride in writing clean, well-tested, and maintainable code, avoiding unnecessary dependencies. Pragmatic & Technical Curiosity: You enjoy peeling back the layers of software to understand how things ...