401 to 425 of 538 Refactoring Jobs in the UK

Senior Software Development Engineer

Location
Greater London, England, United Kingdom
speed of delivery. Hands on experience with Kotlin for server side, or/and React and Typescript for the frontend. Proven track record of refactoring and modernising legacy codebases and architectures, improving performance and maintainability while minimising risk and customer impact. Track record of integrating and optimizing AI/ ...

Senior Software Engineer (Data)

Location
Greater London, England, United Kingdom
businesses Monitor performance metrics for how Data is produced and consumed, and respond to Data incidents. What we're looking for Experience building, designing, refactoring or optimising data lakes and data warehouses from a variety of data sources using data modelling techniques Experience in Building Extract Transform and Load ...

Lead Software Engineering - Java -ETT – Options Algorithmic Trading

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective ...

Head of DevOps

Location
United Kingdom
requirements. You have integrated Cursor CLI or Cloud Agents into CI/CD workflows for code review, test generation, configuration validation, security checks, documentation, refactoring and pipeline-failure remediation. You can use Cursor AI to analyse telemetry and operational code, improve runbooks, investigate incidents, generate remediation changes and develop controlled ...

AI Engineer

Location
Greater London, England, United Kingdom
Have AI/LLM integration experience (APIs, RAG, tool calling, agent frameworks, hosted or local inference). Background improving legacy systems through testing, refactoring, and reducing technical debt. Breadth across desktop, mobile, backend, or systems software. CI/CD experience (GitLab, Docker) and Python for automation. Experience or interest ...

Software Developer - Consultant

Location
Newcastle upon Tyne, England, United Kingdom
problem-solving. Opencast consultants deliver in complex environments, pairing often and working with others who take pride in doing things properly: TDD, emerging design, refactoring and leaving code better than they found it. We build software we are proud of, and our clients trust us not just to code ...

Software Engineer III - React

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
authorized AI coding assist tools within the work environment to improve code quality, delivery speed, and productivity across complex deliverables (e.g., code generation/refactoring, unit test creation, documentation), while validating outputs through peer review, automated testing, and secure coding standards; contributes learnings and reusable patterns to improve broader team ...

Lead Software Engineer - React (Web)

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective ...

Staff / Senior Software Engineer

Location
United Kingdom
Have experience bringing products to market - ideally taking a product from 0 to 1, or productising a service offering Have experience re-imagining and refactoring systems and tooling so they scale reliably as a business grows Use AI coding agents as a core part of how you work, with hands ...

Staff Software Engineer - Backend

Location
Greater London, England, United Kingdom
features, ensuring appropriate engineering decisions are made to factor in technical debt, systems design, stability/reliability, monitoring/observability and business need Lead refactoring of complex systems or problems when it is warranted. Making pragmatic trade-offs between perfection and technical debt which align to the business priorities Lead ...

Software Engineer III – DevOps & AWS

Hiring Organisation
JP Morgan Chase
Location
Glasgow, Lanarkshire, United Kingdom
Salary
£ 80 K
team adoption of enterprise-authorized AI-assisted engineering practices to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, accelerated test strategy, incident/root-cause analysis support), while enforcing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective … Java, including experience with distributed data processing.Leverage enterprise-authorized AI coding assistant tools to improve code quality and delivery speed (e.g., code generation/refactoring, unit tests, documentation), while validating outputs via peer review, automated testing, and secure coding standards; contribute reusable patterns and learnings to improve team effectiveness.Preferred qualifications ...

Digital Systems Architect – Financial Services - Northampton

Location
United Kingdom
technical audience Specific experience of domain driven and event driven architecture Nice to have: Experience of operating in an Agile delivery environment, microservices and refactoring to microservices Knowledge and experience of Enterprise Architecture frameworks (TOGAF, Zachman). Experience of DevOps and containerization Past and/or current experience of Java ...

Digital Systems Architect – Financial Services - Northampton

Location
Northampton, England, United Kingdom
domain driven and event driven architecture The following would be nice to have: Experience of operating in an Agile delivery environment, microservices and refactoring to microservices Knowledge and experience of Enterprise Architecture frameworks (TOGAF, Zachman). Experience of DevOps and containerization Past and/or current experience of Java/ ...

Mainframe Pre-Sales Lead

Hiring Organisation
MBR Partners
Location
London, United Kingdom
Salary
£ 70 K
Mainframe Modernisation Pre-Sales Solution Architect provides technical pre-sales support for a leading global technology services provider’s mainframe application modernisation and refactoring solutions, helping enterprises modernise and migrate mainframe workloads to cloud-based platforms.This is a customer-facing role requiring deep technical expertise in mainframe systems alongside modern ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
stays on building rather than managing. The desk relies on the systems you'll maintain, so stability matters, but there's an appetite for refactoring and cutting technical debt rather than patching around it. You'll be one of a handful of engineers on the futures side, in a culture ...

Senior Software Engineer, Trading Platform GUI

Location
Greater London, England, United Kingdom
object‐oriented programming Experience in performance tuning data‐intensive systems Comfortable with ownership of a significantly large and complex codebase Desirable skills Experience with refactoring existing software to provide performance or architectural improvements while preserving current functionality Experience with Docker Experience with writing integration tests Experience optimizing distributed systems Open ...

Software Engineer – Precision Engineering & Control Systems (C++ / C#)

Location
Biggleswade, England, United Kingdom
Demonstrated experience working across the entire SDLC , with a solid understanding of control algorithms, state machines, and software abstraction layers. Familiar with modifying and refactoring legacy code bases to modern standards. Strong foundation in engineering mathematics and problem-solving from first principles. Experienced in producing technical documentation and maintaining accurate ...

Platform Engineer: Scalable AWS, CI/CD & Observability

Location
Greater London, England, United Kingdom
Engineering team release to production multiple times per day. We review each others code, and set aside time for hacking on experimental features, refactoring and/or learning new things. We work hard and finish on time, no crazy hours. Salary banding: £60,000 - £70,000 per annum At Hnry ...

Full-Stack Software Engineer III

Hiring Organisation
Elsevier
Location
Oxford, Oxfordshire, United Kingdom
Salary
£ 70 K
Enjoy collaborating with team members to create innovative solutions Have experience with a modern IDE (IntelliJ/VSCode) and proficiency in using the refactoring tools Be open to discussing and honing approaches for our team to improve our working practices Have some experience of test-driven development and mocking libraries ...

Data Engineer

Location
United Kingdom
process improvement frameworks and/or project management frameworks is a plus. Experience maintaining a data warehouse including adding features to improve utility and refactoring to reduce costs. Knowledge of data modeling best practices. Experience with REST APIs. Experience building unit tests or working with testing frameworks. Experience with data ...

Lead Software Engineer - React

Location
Greater London, England, United Kingdom
authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective ...

Engineering Technical Lead

Hiring Organisation
Softcat
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 70 K
responsible for: Help us to build standards and drive a whole team approach to qualityLead from the codebase: contributing high-quality production code, refactoring where necessary, and solving complex technical problemsSet technical direction through architectural decisions, patterns, and pragmatic trade-offsMentor engineers through pairing, code reviews, and design discussions—focused ...

Engineering Technical Lead

Hiring Organisation
Softcat
Location
Marlow, Buckinghamshire, United Kingdom
Salary
£ 80 K
responsible for: Help us to build standards and drive a whole team approach to qualityLead from the codebase: contributing high-quality production code, refactoring where necessary, and solving complex technical problemsSet technical direction through architectural decisions, patterns, and pragmatic trade-offsMentor engineers through pairing, code reviews, and design discussions—focused ...

Engineering Technical Lead

Hiring Organisation
Softcat
Location
Leeds, West Yorkshire, United Kingdom
Salary
£ 80 K
responsible for: Help us to build standards and drive a whole team approach to qualityLead from the codebase: contributing high-quality production code, refactoring where necessary, and solving complex technical problemsSet technical direction through architectural decisions, patterns, and pragmatic trade-offsMentor engineers through pairing, code reviews, and design discussions—focused ...

R-04 Technical Project Manager – DevOps Full-time · London · On-site Travel · HK / TW

Location
Greater London, England, United Kingdom
cost-saving models with internal Tech Leads and the external vendor, including Reserved Instances (RIs), Savings Plans (SP), Spot Instances, and architectural refactoring for cost efficiency. Budget Governance Establish automated cost allocation tagging, departmental chargeback models, and real-time budget anomaly alerts to ensure rigorous cloud financial governance. Primary Vendor ...