1 to 25 of 28 Permanent Refactoring Jobs in England

.Net Developer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
maintain applications using C# and .NET/.NET Core Contribute to the development of RESTful APIs and backend services Work on the modernisation and refactoring of legacy .NET applications Collaborate with product managers, business analysts and QA to deliver high-quality features Write clean, testable and maintainable code following best ...

2 x Mid / Senior Full Stack Software Engineers - Hybrid - London

Hiring Organisation
MORRIS SINCLAIR RECRUITMENT LTD
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £100,000 per annum
appreciation for simple, maintainable design Experience in the financial industry is a plus Experience working with Third-party APIs is a plus Experience in refactoring and improving code performance and design is a plus Experience with Unit Testing is a plus Current tech stack C# .NET MVC Entity Framework (Code ...

.Net Developer (Fully Remote)

Hiring Organisation
DMS Computer Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £65,000 per annum
will join our team to help us deliver high quality code for new and existing projects. Your main focus will be the development and refactoring of backend-services using C# .NET (full framework, .NET6) and supporting application delivery to multiple environments. The main responsibilities of the position include: Full stack ...

Senior QA Automation Engineer

Hiring Organisation
ClearCourse
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
tests Experience implementing QA tests within a Microservices architecture Able to describe differences and identify candidates for Unit, Integration & E2E tests Experience improving, refactoring, and rewriting tests. Experience ensuring that tests run within CI/CD pipelines We offer a competitive salary and generous benefits package, including: Hybrid-working model ...

Data Engineer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
systems and processes across a given project(s) or technical domain Analyse, profile and plan work, aligned with project priorities Perform reviews of code, refactoring where necessary Deploy code in a structured, trackable and safe manner Document your data developments and operational procedures Ensure adherence to data/software delivery ...

Senior AI Engineer

Hiring Organisation
Chambers and Partners
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
procedures. Software Engineering & Collaboration Write clean, tested, maintainable code in Python (and optionally .NET). Apply SOLID, TDD/BDD where sensible, code reviews, refactoring, performance profiling. Collaborate in an Agile environment; contribute to technical specs and implementation plans. Build POCs to de-risk architecture and showcase value; harden POCs ...

Senior Software Engineer

Hiring Organisation
Tiro Partners Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £120,000 per annum
high-impact legacy services while building AI-powered engineering workflows. What You'll Do Modernise critical legacy Java services using AI-driven analysis and refactoring Apply migration patterns (e.g. strangler fig) to deliver clean, modern APIs Ship improvements in fast cycles with measurable gains in performance and reliability Build ...

Site Reliability Engineer (SRE)

Hiring Organisation
Dns Info Ltd
Location
London, United Kingdom
Employment Type
Any
Salary
GBP Annual
ensure permanent closure of incidents Engage with development team throughout the life cycle to help develop software for reliability and scale, ensuring minimal refactoring or changes Identify application patterns and analytics in support of better service level objectives Design self-healing and resiliency patterns Design automated software and product upgrades ...

Senior Software Engineer – Systems Improvement & Scale

Hiring Organisation
Car Planet
Location
Enfield, England, United Kingdom
Proven experience working on live production systems ✔️ Full-stack JavaScript/TypeScript (Next.js, Node, APIs, databases) ✔️ Python experience (scripting, services, tooling, data processing) ✔️ Strong refactoring and system-improvement skills ✔️ Comfortable in fast-moving, imperfect environments ✔️ Able to work autonomously with strong judgement on priorities & risk Highly Desirable ⭐ C#/.NET ...

Senior GCP DevOps Engineer

Hiring Organisation
Charles Simon Associates Ltd
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £95,000 per annum
tooling across a huge GCP estate. What You’ll Be Doing: Engineering GCP infrastructure products using Terraform & Terraform Cloud. Designing reusable IaC modules, refactoring legacy configs, improving state management. Building automation, tooling and workflows in Python. Developing secure, scalable GCP landing zones with org policies, policy-as-code (OPA/ ...

DevOps Engineer (Fully Remote) Inside IR35 | 6-12 Month Contract

Hiring Organisation
Synechron
Location
City of London, London, United Kingdom
SAST, etc.) Optimization: Enhance performance through parallel builds, caching, and dependency prefetching Integrity & Security: Ensure artifact integrity via SHA-mapping and reproducible inputs while refactoring legacy scripts to modern standards. Mentorship: Act as a subject matter expert for engineers on secure pipeline development and supply-chain practices 🎯 Major Requirements ...

DevOps Engineer (Fully Remote) Inside IR35 | 6-12 Month Contract

Hiring Organisation
Synechron
Location
East London, London, United Kingdom
SAST, etc.) Optimization: Enhance performance through parallel builds, caching, and dependency prefetching Integrity & Security: Ensure artifact integrity via SHA-mapping and reproducible inputs while refactoring legacy scripts to modern standards. Mentorship: Act as a subject matter expert for engineers on secure pipeline development and supply-chain practices 🎯 Major Requirements ...

Senior Backend Developer

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 - 100,000 Annual
maintaining scalable Back End systems Comfortable working with APIs, databases, and distributed systems Strong problem-solving skills and a pragmatic approach to debugging and refactoring Experience working with version control, testing practices, and code reviews Product-minded - able to think beyond the code and understand real user impact Experience working ...

DevOps Engineer (Fully Remote) Inside IR35 | 6-12 Month Contract

Hiring Organisation
Synechron
Location
Leeds, West Yorkshire, United Kingdom
SAST, etc.) Optimization: Enhance performance through parallel builds, caching, and dependency prefetching Integrity & Security: Ensure artifact integrity via SHA-mapping and reproducible inputs while refactoring legacy scripts to modern standards. Mentorship: Act as a subject matter expert for engineers on secure pipeline development and supply-chain practices 🎯 Major Requirements ...

DevOps Engineer (Fully Remote) Inside IR35 | 6-12 Month Contract

Hiring Organisation
Synechron
Location
Leigh, Greater Manchester, United Kingdom
SAST, etc.) Optimization: Enhance performance through parallel builds, caching, and dependency prefetching Integrity & Security: Ensure artifact integrity via SHA-mapping and reproducible inputs while refactoring legacy scripts to modern standards. Mentorship: Act as a subject matter expert for engineers on secure pipeline development and supply-chain practices 🎯 Major Requirements ...

Data Engineer

Hiring Organisation
Tria
Location
City, Wolverhampton, United Kingdom
Employment Type
Permanent
Salary
GBP 40,000 - 50,000 Annual
responsible for Building, testing, and maintaining cloud-based ETL pipelines on AWS , ingesting data from APIs, web sources, and internal systems into Snowflake Refactoring and optimising Python and SQL workflows for speed, reliability, and scalability Automating pipelines and maintaining CI/CD, Git-based version control, and deployment standards Improving ...

SAS Consultant

Hiring Organisation
Focused Futures Consultancy LTD
Location
London Area, United Kingdom
target-state SAS architecture aligned to AWS. Repoint SAS workloads (ETL, models, analytics, reporting) from Cloudera to AWS. Provide guidance on code compatibility, refactoring, and modernization opportunities. Ensure solutions are secure, scalable, and compliant with banking regulations. Act as the technical authority, collaborating with architects, data engineers, and stakeholders. What ...

PHP Developer

Hiring Organisation
Nigel Wright Group
Location
Hebburn, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£28,000 - £35,000 per annum
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. ...

Software Engineer Mid or Senior Tech For Impact

Hiring Organisation
SR2
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £85,000 per annum
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 ...

Platform Engineer

Hiring Organisation
SR2
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £85,000 per annum
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 ...

Senior Full Stack Engineer

Hiring Organisation
Searchland
Location
City of London, London, United Kingdom
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 ...

Senior Full Stack Developer Laravel, VueJS and React

Hiring Organisation
Viewber Ltd
Location
Newbury, Berkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£61,000 - £66,000 per annum
pipelines in a major project using Circle, Gitlab, or Bitbucket. Experience in and desire to participate in mentoring, shaping the development process. Experience refactoring production enterprise systems and live DB structures. Benefits of working for Viewber include: Work from home WorkFlexing Policy offering employees the opportunity to work from almost ...

Backend Software Engineer

Hiring Organisation
SR2
Location
Bristol, Avon, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £85,000 per annum
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 ...

Application Architect

Hiring Organisation
MPower Plus
Location
London Area, United Kingdom
Practical experience of network segmentation of an existing network into zones, segments, end-to-end segregation from design through to delivery and migration (e.g. refactoring, deployment), and accompanying standards. • Documentation of the above areas including but not limited to: Standards, Patterns, Strategies, Roadmaps and recommendation papers – positioned at senior leadership ...

Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
York, North Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£50,000
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 ...