1 to 25 of 187 Clean Code Jobs in the UK

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 ...

Agile teams to translate complex business requirements into reliable, secure, and scalable software solutions. If you are passionate about backend engineering, microservices, and writing clean, efficient code in a fast-paced environment, we want to hear from you! What You Will Do Develop & Innovate: Design, build, test … backend services, and RESTful APIs. Collaborate: Work closely with Architects, Business Analysts, Product Owners, QA, and DevOps engineers throughout the software development lifecycle. Write Clean Code: Translate technical requirements into efficient, maintainable code using Spring Boot and microservices architectures. Ensure Quality: Participate in code reviews, unit ...

mentoring others Programming Skills: Have heavily used modern object-oriented languages such has C# or Java Enterprise Expertise : Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs and have experience of messaging. Data Modelling: Worked with defining data … ASP.NET Core Use front end Typescript/React, ASP.NET MVC or C#/Blazor Cloud Experience: Build cloud first applications with high unit test code coverage on a continuous delivery platform with 100% infrastructure as code Package applications in containers and deploy on Azure Kubernetes Service Data Modelling ...

mentoring others Programming Skills: Have heavily used modern object-oriented languages such has C# or Java Enterprise Expertise : Expertise in software design patterns, clean code, and clean architecture principles & Knowledge of how to build REST APIs and have experience of messaging. Data Modelling: Worked with defining data … ASP.NET Core Use front end Typescript/React, ASP.NET MVC or C#/Blazor Cloud Experience: Build cloud first applications with high unit test code coverage on a continuous delivery platform with 100% infrastructure as code Package applications in containers and deploy on Azure Kubernetes Service Data Modelling ...

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. ...

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.On ...

opportunity to work on technically challenging programmes where quality is fundamental to success. The Opportunity Our client is looking for engineers who enjoy writing code as much as they enjoy finding defects. As an SDET, you'll work closely with software engineers, DevOps specialists, architects, and business stakeholders … front-end applications. Integrating automated testing into CI/CD pipelines using tools such as Azure DevOps, Jenkins, or GitHub Actions. Writing clean, maintainable automated tests using Java, Python, C#, or JavaScript/TypeScript. Collaborating with multidisciplinary delivery teams to define effective quality strategies. Investigating test failures, identifying root ...

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+ ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

stack environments Building scalable cloud-native applications using modern engineering practices Working closely with cross-functional teams to deliver high-quality digital products Championing clean code, performance, security, accessibility and maintainability Mentoring junior engineers and supporting technical leadership within delivery teams Contributing to architecture decisions, code reviews … experience with the following technologies: Java, Python, Go or TypeScript React, Angular, Vue or SvelteAWS, Commercial experience with AWS, Azure or GCP Infrastructure as Code (Terraform, AWS CDK or Pulumi) CI/CD tooling such as GitHub Actions, GitLab CI, Jenkins, CircleCI or ArgoCD Strong understanding of software security ...

stack environments Building scalable cloud-native applications using modern engineering practices Working closely with cross-functional teams to deliver high-quality digital products Championing clean code, performance, security, accessibility and maintainability Leading a team of engineers and supporting technical leadership within delivery teams Contributing to architecture decisions, code … 5+ years' commercial experience with the following technologies: Java, Python, Go or TypeScript React, Angular, Vue or Svelte AWS, Azure or GCP Infrastructure as Code (Terraform, AWS CDK or Pulumi) CI/CD tooling such as GitHub Actions, GitLab CI, Jenkins, CircleCI or ArgoCD Strong understanding of software security ...

outcome . The role would suit an experienced engineer who is operating at the forefront of AI development and is equally comfortable writing production code, challenging a product strategy, presenting to senior stakeholders and working directly with clients. How You'll Work The role is built around three core … Develop prompt and context engineering approaches focused on accuracy, reliability, cost and latency. Make structured use of AI-assisted development tools such as Claude Code, Cursor, GitHub Copilot and Codex . Fine-tune or adapt models where there is a genuine use case. Production & Engineering You'll own solutions ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

products. * Develop and maintain platform tooling, automation, observability, monitoring and CI/CD capabilities. * Build software solutions using Python and modern engineering practices. * Write clean, maintainable code and infrastructure-as-code solutions to support service delivery. * Embed Site Reliability Engineering principles including SLIs, SLOs, error budgets … with engineers, architects, product teams and stakeholders whilst coaching and mentoring colleagues. Essential Skills for the Senior Backend Engineer (Site Reliability) include: * Experience writing clean, maintainable code in at least one programming language. * Experience designing, operating and improving distributed systems, focusing on reliability, performance and user outcomes. * Experience ...

messaging platforms Background in Agile DevSecOps environments and Zero Trust architectures Experience integrating with services such as PostgreSQL, Redis and S3 Solid engineering fundamentals: clean code, testing, documentation, code reviews and continuous delivery Comfortable using GitHub, GitLab and Atlassian tools Strong TDD experience Hands-on experience with ...

using C# and .NET Contribute to the architecture and development of a microservices-based system Apply strong object-oriented programming principles, including polymorphism and clean code practices Help build and optimise infrastructure-as-code (IaC) environments Work closely with DevOps practices, including CI/CD pipelines Collaborate … with cross-functional teams to define and deliver features Contribute to technical decisions in a greenfield environment Ensure code quality through testing, reviews, and best practices Required Skills & Experience Solid experience developing with C# and modern .NET (Core/.NET 6+) Strong understanding of microservices architecture Good knowledge ...

Test-Driven Development (TDD), Agile methodologies, and DevOps culture. Comfortable with front-end technologies such as HTML, CSS, and JavaScript. Desirable Skills Awareness of clean coding and SOLID principles. Exposure to AWS cloud services. Experience with JUnit or other testing tools. Basic knowledge of XML/JSON data formats ...

REST APIs and microservices. Work closely with developers, testers and architects throughout the software development lifecycle. Contribute to Agile ceremonies including sprint planning and code reviews. Follow best practices including clean code, CI/CD and version control. Support the delivery of high-quality, scalable software solutions. ...

builder-first individual-contributor role with genuine product and commercial ownership. It suits engineers who live at the current edge of AI development—Claude Code, Cursor, agents, eval harnesses, MCP ,modern TypeScript and Python—and who are equally at home at a whiteboard in front of a client … conversation; have a working prototype to react to by the end of the week. Build modular backends in Python or TypeScript aligned with clean architecture, OOP, SOLID, and domain-driven design. Create fullstack applications, APIs, agents, workflows, and similar systems using frameworks such as Next.js, React, FastAPI, Fastify, FastMCP ...

they scale, supporting our expansion of new products and supporting services in the US. We believe that software engineering is more than just code - it's about people. We believe that the best teams are made of great people. That fundamentally great software engineering is about alignment, sharing what … What we're looking for technically Strong commercial Kotlin or JVM based engineering experience (willingness to work with Kotlin) An ability to write simple, clean code Experience and understanding of databases; relational databases are a must, NoSql would be nice too Be able to quickly understand complex, financial ...