76 to 95 of 95 Refactoring Jobs in the UK

features across a production SaaS platform. Owning backend-heavy full-stack work using JavaScript and TypeScript, with supporting frontend development in React. Maintaining, refactoring, and optimising existing systems for performance, scalability, and security. Working directly with the founders on product requirements, technical trade-offs, and delivery priorities. Integrating AI-driven ...

translating sophisticated technical concepts into tangible business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET ...

translating sophisticated technical concepts into tangible business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET ...

translating sophisticated technical concepts into tangible business value Your experience should include... 7+ Years of experience in a similar role. Deep, hands-on experience refactoring, stabilising, and instrumenting large, monolithic, legacy codebases. Expertise in PHP is ideal, but deep experience with other stacks like Java/C#/.NET ...

driven systems, working closely with C# to enhance and develop backend endpoints. Tackling technical debt by resolving long-standing issues in legacy codebases and refactoring outdated modules. Working across both PHP and C# environments, particularly around backend logic and API development. Implementing and configuring secure authentication flows between internal systems. ...

Designing and building scalable backend services and APIs Working on workflow systems that support large-scale voting operations Prototyping and productionising AI-enabled features Refactoring and modernising legacy services Collaborating closely with engineers, product and operations What you'll bring Strong software engineering fundamentals Experience writing production code ...

large-scale voting operations Enabling application teams through better tooling, automation, and documentation Working on infrastructure that supports AI-enabled products and data workloads Refactoring and modernising existing platform services where needed What you'll bring Strong engineering fundamentals and a platform/infrastructure mindset Experience working with cloud infrastructure ...

running on Node.js/Express Model and query relational and search-optimized data using PostgreSQL and Elasticsearch Contribute to backend architecture, performance tuning, and refactoring work Collaborate with technical and non-technical teammates to clarify requirements and break down work Own implementation from development through to deployment and monitoring ...

Designing and building scalable backend services and APIs Working on workflow systems that support large-scale voting operations Prototyping and productionising AI-enabled features Refactoring and modernising legacy services Collaborating closely with engineers, product and operations What you'll bring Strong software engineering fundamentals Experience writing production code ...

leadership. Roughly 80% hands-on delivery, 20% architecture and technical design. Work in a continuous delivery environment with space built in for refactoring and long-term improvements. Remote-first role with UK working hours. What We’re Looking For Deep expertise in Python , with hands-on experience running systems ...

initially work on software development tasks related to the plasma simulation codes being developed across the unit. Initially, this will involve tasks like code refactoring, development of data preprocessing and post-processing tools or user interfaces. Role Successfully complete the nationally recognised qualification specified within the apprenticeship standard: Digital ...

YieldBook analytics platform, a core engine used for Fixed Income and securitized product analytics. This initiative requires senior‐level C++ Quant Engineers capable of refactoring complex analytics libraries and supporting a migration to Microsoft Azure. Role Overview Ascenteum is building a specialist team of Senior C++ Quantitative Engineers to contribute … high‐impact role involving deep quantitative engineering, large‐scale codebase modernisation, and collaboration with Quant, Product, and Engineering teams. You will work on refactoring legacy C++ analytics libraries, improving performance, enhancing model accuracy, and supporting the transition to a modern Azure‐based architecture. This role is ideal for engineers ...

from requirements and architecture through to implementation, testing, and support. Key responsibilities include: Designing and developing new features in a C# desktop application Maintaining, refactoring, and improving an existing codebase Working with data visualisation, analysis, and user-facing functionality Supporting customers and troubleshooting software issues Producing clear technical documentation About ...

C# MVC .NET framework SOLID Principles A desire to work in a Pair Programming/Mob Programming environment. TSQL/SQL Test Automation TDD Refactoring Unit Testing/Mocking JavaScript frameworks such as React (or similar) Experience with using ORM (e.g. Entity Framework) Agile & Scrum development methodologies Able to present … business and much more! KEYWORDS Analysis and Design, C#, MVC, .NET framework, SOLID Principles, Pair Programming/Mob Programming, TSQL, SQL, Test Automation, TDD, Refactoring, Unit Testing, Mocking, JavaScript Frameworks, React or similar, ORM, Entity Framework, Agile, Scrum. Please note, to be considered for this opportunity you MUST have ...

.NET framework SOLID Principles A desire to work in a Pair Programming/Mob Programming environment TSQL/SQL Test Automation TDD DDD Refactoring Unit Testing/Mocking JavaScript frameworks such as React (or similar) Experience with using ORM (e.g. Entity Framework) Agile & Scrum development methodologies Able to present yourself … much more! KEYWORDS Analysis and Design, C#, MVC, .NET framework, SOLID Principles, Pair Programming/Mob Programming, TSQL, SQL, Test Automation, TDD, DDD, BDD, Refactoring, Unit Testing, Mocking, JavaScript Frameworks, React, ORM, Entity Framework, Agile, Scrum, Agentic AI Please note, to be considered for this opportunity you MUST have ...

Reference: BH-346p Working Hours: 5 days per week Job Type: Permanent Permanent Salary: up to £60,000/per annum Location: UK, Fully Remote (1 day per month on-site, in Shipley, North of ...

Lead PySpark Engineer (Cloud Migration) Role Type: 5-Month Contract Location: Remote (UK-Based) Experience Level: Lead/Senior (5+ years PySpark) Role Overview We are seeking a Lead PySpark Engineer to drive a large ...

Lead PySpark Engineer (Cloud Migration) Role Type: 5-Month Contract Location: Remote (UK-Based) Experience Level: Lead/Senior (5+ years PySpark) Role Overview We are seeking a Lead PySpark Engineer to drive a large ...

The Role: Join our client as a Lead PySpark Engineer to modernize legacy data workflows. You will lead the hands-on transition of complex SAS environments into scalable, AWS-native PySpark pipelines for a major ...

supporting a technology business undertaking a major modernization programme and are looking for a Senior Backend Developer to drive a large-scale refactoring initiative across a complex, multi-service platform. This is a hands-on role for someone who enjoys untangling legacy code, improving architecture, and leaving systems … deep engineering capability with pragmatic technical leadership to deliver safer, faster, and more scalable services. What you'll be doing: Lead end-to-end refactoring across multiple backend technology stacks Redesign and modernise the messaging and event architecture Improve database performance, reliability, and schema design Reduce technical debt while keeping ...