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BRISTOL

Legacy System Modernisation in Bristol

Evolved Ideas helps Bristol CTOs and IT Directors modernise legacy systems without data loss or downtime. Refactor monoliths to microservices, migrate to cloud-native platforms, and extend teams with nearshore support.

Book a free discovery callView our case studies
Where we deliver
Bristol
Delivery model
Nearshore teams in the UK, Spain, Ukraine
Team
100+ engineers, designers and analysts
First step
Free 30-minute discovery call

Trusted by enterprises, scaleups and startups

  • British Gas
  • Lafarge
  • NHS
  • cinch
  • Bridgestone
  • Dole

Why Legacy Systems Hold Back Growth

Outdated monoliths are expensive to maintain, slow to change, and risky to update. Deployment takes hours, a single bug can crash the whole platform, and adding features takes weeks of careful coordination. Teams spend more time fighting the system than building new value. Hiring new developers means months of onboarding before they're productive. Cloud costs stay high because the architecture doesn't scale efficiently. For CTOs and IT Directors in Bristol, the real cost isn't the old code,it's the opportunity cost of not being able to move fast.

We don't rip and replace. Instead, we map the monolith's dependencies, extract services incrementally, and run tests at every stage. Your team stays involved: we pair with your developers so they understand the new architecture, not just the outcome. We prioritise business-critical services first so you see value early. Contracts between services are tested thoroughly before traffic switches over. Throughout the process, the legacy system stays your safety net,nothing moves to the new platform until we've proven it works at scale.

02

Our Approach to Safe Refactoring

03

Building Confidence in Cloud-Native Architecture

Moving to microservices or cloud-native design is about more than code. It's about operations, monitoring, deployment pipelines, and runbook knowledge. We build those practices in parallel with the refactor. Your team learns containerisation, orchestration, and observability so they can run the new system confidently. We don't hand over a black box. By the time we step back, your engineering team has hands-on experience with the new architecture and can evolve it themselves.

WHAT YOU GET

Built around how your business works

  • 01Zero-downtime migration strategies that keep your business running throughout refactoring
  • 02Extract and refactor incrementally, validating each service before traffic switches
  • 03Extended teams from UK, Spain, and Ukraine scale capacity without permanent headcount
  • 04Your developers learn the new architecture hands-on, so you're not dependent on external experts
  • 05Phase migrations by business criticality, delivering early value while reducing risk
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WHAT OUR CLIENTS SAY

Working with Evolved Ideas has been the best experience I've ever had with a technology company. Everything that's done is done carefully. I like how my project team treats my product. We have people using our platform and getting value from it now, which wouldn't be possible without Evolved Ideas.

Jamie Beaumont

CASE STUDIES

How we've transformed enterprises, SMEs and startups

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ABOUT US

Read our story

Founded in 2007 as a dedicated IT consultancy, Evolved Ideas has grown into a team of over 100 professionals, with a head office in Leicester and development hubs in Eastern Europe and Spain.

Read more
19+
Years in business
200+
Successful projects
100+
Developers, designers and analysts
100+
Satisfied clients
  • Clutch Top Software Developers Leicester 2024
  • Clutch Global Fall 2024
  • UK Fintech Awards 2021 — Winner
  • UK Digital Technology Leaders Awards 2018

OUR EXPERTISE

What we build

Over 17 years building custom software and mobile applications, and leveraging AI and ML to build the software you'll need next.

See it in the case studies
  • SaaS applications
  • Web-based portals
  • Custom B2B software
  • Native iOS applications
  • Native Android applications
  • Cross-platform mobile apps
  • White-label software
  • AI integration
  • Machine Learning

LOCAL INSIGHT

Working with businesses in Bristol

Bristol's tech and digital cluster includes fintech, media, and software companies managing systems built 10-15 years ago. Many grew fast and accumulated technical debt; scaling further means either investing in modernisation or hitting a performance wall. CTOs here need partners who understand both the business urgency and the engineering complexity. Our nearshore model lets Bristol teams stay close to planning while offshore developers provide continuous refactoring capacity,critical when the modernisation runs in parallel with live product work.

Where our teams sit

  • LeicesterHead office, UK delivery
  • Gran CanariaEvolved Ideas Spain
  • KyivEngineering hub
Meet the team

OUR PROVEN PROCESS

From first call to ongoing support

Our process has guided startups, scaleups and enterprises from concept to reality, and continues after launch.

  1. 01

    Discovery

    A free 30-minute consultation followed by a stakeholder workshop, where we listen to your challenges, validate assumptions and build an outside-in view of your situation.

  2. 02

    Plan & design

    We scope the project, define milestones and deliverables, then research your market, wireframe the UX and prototype the UI so the direction is agreed before a line of code.

  3. 03

    Build

    We assemble your dedicated team, establish reporting and work in iterative Scrum sprints, delivering a working MVP or proof of concept you can test with real users.

  4. 04

    Launch & support

    We ship, sign off, and keep your product current through our support service or a permanent extended team as your business evolves.

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OUR SOLUTIONS

We build solutions for your business challenges

Technology is more than just code — it's a tool for solving real business challenges. Whichever route fits your stage, the same team delivers it.

Bespoke Software

With your long-term goals in mind, we help you choose the technology you need and develop a tech roadmap based on industry trends, emerging tech and your business requirements.

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MVP Ideation & Validation

We have years of experience building proof of concepts and MVPs. We will take you from testing viability to building an MVP to validate your hypotheses.

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Application Support

Tier 1 customer support, Tier 2 technical support and Tier 3 development support for applications and legacy software, delivered by our engineering teams.

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Development Teams

If you need to build an IT team from zero or need staff augmentation, we can build the team you need — developers, designers, analysts and even fractional CTOs.

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FAQ

Questions we hear most often

Still unsure how this would work for your business?

Ask us directly
How do you prevent data loss during a legacy system migration?

We run parallel systems during transition, validate data integrity at each stage, and build rollback plans before cutover. Your data is verified against the original state, and we maintain audit logs throughout. Testing happens in staging environments that mirror production before any live migration begins.

What's the typical timeline for monolith to microservices migration?

It depends on system complexity and your team's capacity to test and validate. A mid-sized monolith usually takes 6-12 months working with a dedicated team. We break it into phases so you get early wins and can phase in new services without a big-bang cutover.

Can you modernise our system while we stay live in production?

Yes. We design migrations around your business hours and traffic patterns. Some services can run alongside the legacy system while we refactor others, so users see no disruption. We plan downtime windows only when essential, and communicate them weeks in advance.

How does nearshore delivery help with legacy modernisation in Bristol?

Our UK, Spain, and Ukraine teams work across timezones so you get continuous progress. Bristol-based teams can attend planning and review meetings while our nearshore developers handle deep refactoring work. You get local accountability plus extended capacity without hiring permanent staff.

What happens to the old system during modernisation?

We keep the legacy system running until the new one is stable and proven. Once the team and business trust the refactored platform, we decommission the old code and redirect traffic. Some systems run in parallel for months; others sunset faster depending on risk tolerance.

Do you handle cloud migration as part of legacy modernisation?

Yes. Moving from on-premise to cloud is often part of the modernisation plan. We assess whether your architecture benefits from cloud-native design (microservices, serverless, managed databases) and plan the lift-and-shift or refactor strategy that fits your budget and timeline.

EXPLORE MORE

Related solutions

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NEXT STEPS…

Ready to bring your ideas to life?

Book a free 30-minute discovery call with our team — we'll understand your objectives and advise how bespoke software, MVP development, or an extended team can help your business.

Book a free discovery call