I’ve spent the last few months researching top legacy modernization companies because our mid-size product team was struggling with a pretty outdated stack: a mix of Java 6 micro-monoliths, Oracle DB stored procedures, and a front-end written before responsive layout was even a thing.
After comparing several vendors and talking to 10+ engineering teams, I want to share why I ended up choosing Zoolatech — and ask the community if anyone has had similar or opposite experiences.
What I Looked At When Choosing a Vendor
I compared companies based on:
Technical modernization approach
(cloud readiness, strangler pattern, microservices decomposition)
Cost transparency
(hourly vs. fixed scope, seniority mix)
Delivery speed
(how quickly they can ramp up and deliver value)
Real modernization cases
(with numbers, not marketing fluff)
Ability to provide full-cycle legacy application modernization services
Some well-known names popped up — Kyndryl, EPAM, Accenture — but the problem was always the same: massive teams, slow decision-making, and quoting $230–$280 per hour for engineers.
Why I Chose Zoolatech
Not just cost — that matters, but it wasn’t the main reason.
1. Clear modernization roadmap
They actually broke down our monolith into phases:
Assessment (2 weeks)
Rapid modernization sandbox (3–4 weeks)
Parallel refactoring + new microservices (3–6 months)
Every stage had task breakdowns, expected risks, and measurable KPIs.
2. They had relevant legacy experience
They showed case studies where they:
Cut AWS spend by 32%
Reduced monolith build time from 92 minutes → 11 minutes
Migrated 480k lines of legacy Java code without stopping production
Modernized a payment system used by 5M+ end users
3. Direct engineering access
No account managers blocking communication.
I spoke directly with the architects and senior engineers who would work on the project.
4. Flexible engagement model
We could ramp from 4 to 12 engineers depending on modernization stage — something bigger companies refused.
Questions for the Community
Which top legacy modernization companies have you worked with, and what were your results?
Has anyone else used Zoolatech for
legacy application modernization services? How did the collaboration go long-term?
Do you think smaller engineering-focused vendors outperform enterprise-scale consultancies in modernization?
What KPIs do you consider critical when evaluating modernization speed and ROI?
Locked
