4 of 4 Legacy Systems Jobs in West Yorkshire

Senior Software Engineer

Hiring Organisation
Hatched Recruitment Group
Location
West Yorkshire, England, United Kingdom
small, highly capable team, working closely with the Technical Lead to maintain, improve, and modernise a mature, production-critical platform. The Role Our systems are business-critical, designed for performance, reliability, and scalability. You’ll be balancing maintenance, new development, and modernisation , making a real impact on the platform … every day. You will: Own key systems and features end-to-end Work across multiple codebases and technologies Modernise existing platforms without breaking them Contribute to architectural decisions and technical direction Balance building new features with improving existing systems What You’ll Do Here’s where your skills ...

Optimisation Consultant

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Leeds, West Yorkshire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £65,000 per annum
Hybrid | Birmingham, Leicester, or Leeds A major financial services organisation is undergoing significant digital transformation, moving from legacy systems into a modern, product-led operating model. They are mid-way through migrating core operations onto Salesforce and embedding intelligent automation across the business. The Role ...

Software Engineer (PHP / SQL / AWS)

Hiring Organisation
Circle Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£70,000
Remote with one day a month in the office, commutable from Manchester, Leeds, Sheffield) Software Developer, Software Engineer, PHP Developer, E-commerce & Fulfilment Systems Brand new role due to expansion - We are looking for a mid to senior software engineer who enjoys working on systems that actually keep … perfectly defined up front. It's a pragmatic environment, not a theoretical one. A lot of the work sits in established PHP and SQL systems that support e-commerce and fulfilment operations. The codebases are large, sometimes messy, and undeniably important. The expectation isn't to rewrite everything ...

Software Engineer

Hiring Organisation
MRJ Recruitment
Location
Wakefield, West Yorkshire, UK
Employment Type
Full-time
APIs around legacy systems. The focus here is on API infrastructure that powers core products, third-party integrations and AI services, including systems that automate real end-to-end workflows, not just surface-level features. They are now hiring an Software Engineer to take real ownership … testing mindset and care for clean, maintainable code Nice to have, not essential: API gateways or API management platforms Event-driven or message-based systems Building APIs for external partners or developers Supporting AI services via APIs This is a strong move for someone who wants to grow beyond ...