5 of 5 Remote Legacy Systems Jobs in Berkshire

Staff Software Engineer

Hiring Organisation
Definely
Location
Slough, Berkshire, UK
Employment Type
Full-time
most complex challenges in our stack. This includes modernising and scaling our .NET backend services, improving system reliability and observability, and designing modular systems that power AI-driven document workflows deeply integrated into Microsoft Word and the broader Microsoft ecosystem. This role is ideal for someone who thrives … designing systems at scale, leading cross functional technical initiatives, and mentoring teams through change. You will have significant influence over technical direction, infrastructure choices, and how we evolve from legacy patterns to a modern, cloud-native architecture. What you'll do: Technical Leadership & Strategy Define and drive ...

Head of Architecture - Infrastructure

Hiring Organisation
Centrica - CHP
Location
Windsor, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
guiding the architectural vision across our Infrastructure business. This role sits at the heart of a product-led technology organisation, ensuring that our systems and platforms not only support current business needs but are also built to scale and evolve with future demands. You'll be the strategic mind … behind long-term technology roadmaps, aligning them with enterprise architecture and the wider technology strategy. Whether it's rationalising legacy systems or guiding future investments, your focus will be on creating a technology landscape that's efficient, secure, and ready for growth. Location: UK-based hybrid role ...

Software Engineer (Data) (6 month contract)

Hiring Organisation
Arcus Search
Location
Slough, Berkshire, UK
Employment Type
Full-time
data quality, performance, and maintainability Tech environment • Kotlin & Spring Boot for core data processing services • Python for tooling and automation • Legacy systems in C# and Scala/Spark • Exposure to data lakes and large-scale data platforms is a strong plus What they're looking for • Strong … background (Kotlin, Java, or Scala) • Experience building or modernising data pipelines • Solid understanding of SQL and data processing systems • Comfortable working in complex, performance-sensitive environments • Financial markets or trading data experience is beneficial but not essential 6-month initial contract with potential to extend. Onsite by default, with ...

Senior Application Support Analyst

Hiring Organisation
Randstad Digital
Location
Slough, Berkshire, UK
Employment Type
Full-time
sessions (sequence gaps, rejects, drops) Work with Network and Infrastructure teams on VPNs and cross-connects Support migration of legacy trading systems Required Experience 3–5 years in FIX Connectivity, Integration, or Trading Production Support Strong FIX Protocol knowledge (session & application layers) Linux/Unix experience with ...

Lead Software Engineer (C#/.React.js) -TOP TRADING COMPANY!

Hiring Organisation
Robert Half
Location
Slough, Berkshire, UK
Employment Type
Full-time
rebuilding its entire core platform from the ground up greenfield, modern, high-impact. You'll be working directly with the CTO on mission-critical systems used across trading and structured products. What You'll Work On: Full greenfield rebuild of legacy trading systems Modern full-stack … Looking For: Strong C#/.NET engineering background Solid React.js (or modern JS with willingness to grow fast) Experience in financial services/trading systems Ownership mindset — hands-on, ideas-driven, and proactive Interview Process (Fast Turnaround) CTO Intro Live Technical Test HR (Culture & Team Fit) No visas, sponsorship ...