Audit
Legacy system audit
Codebase review, infrastructure assessment, integration mapping, and an honest read on what’s worth keeping.
Acceleration
Modernize legacy systems without breaking what works.
Take over legacy systems, refactor what’s worth keeping, rebuild what isn’t — without losing operational continuity, user data, or institutional knowledge. Phased migration, zero-downtime cutover, honest assessment from day one.
Refactor
Rebuild
Phased rollout
What we deliver
The modernization stack, end to end.
The most expensive mistake in modernization is a “big bang” rebuild. We avoid that by default.
Strategy
Modernization planning
Refactor vs rebuild decisions, phased delivery plan, risk and cost trade-offs — laid out in plain English.
Phased
Phased migration
Strangler-pattern migration — new system grows alongside old, taking over one capability at a time.
Refactor
Refactor vs rebuild
Sometimes the right answer is targeted refactoring. Sometimes it’s a clean rebuild. We help you tell the difference — honestly.
Data
Data migration
Schema migration, data validation, dual-write patterns during cutover, and the verification work to make sure nothing is lost.
Cutover
Zero-downtime cutover
Dual-running, traffic shadowing, percentage-based rollouts, and the operational discipline that keeps production going through the switch.
Tech we use
Modernization tech stack.
Node.js
Modern backend
Python
Modern backend
React
Modern UI framework
Docker
Containerization
Kubernetes
Container orchestration
Terraform
Infrastructure as code
FAQs
Questions buyers typically ask.
Can you take over a system another team built?
Yes, and it’s a common starting point. We do a short technical assessment — codebase, infrastructure, integrations, operational state — then propose either modernization in place or a phased rebuild based on what’s worth keeping.
How long does modernization typically take?
Small targeted modernization (one module, single integration): 2-4 months. Full system modernization with phased migration: 6-18 months depending on scope and operational risk tolerance. We scope each engagement explicitly during discovery.
What about risk — modernization projects famously fail?
Yes, big-bang rebuilds fail. We default to phased migration patterns (strangler, dual-write, percentage rollout) that keep the old system running while the new one grows alongside it. Failure modes are smaller and recoverable.
How do you handle continuity during modernization?
The legacy system keeps running until the new one has proven itself in production for each capability. Cutover is per-module, not per-system. Customer experience doesn’t break during transition.
What’s the typical cost?
Depends entirely on scope. Targeted modernization (one module) starts in the low six figures. Full enterprise modernization can run into the seven figures over 12-18 months. We scope explicitly and price as fixed milestones, not open-ended T&M.
Tell us what you need to build, integrate, or operate.
Whether it’s a new product, a stuck integration, or a system that needs a fresh team — we’d like to hear about it.
Read by the team within 24 hours. No drip sequences, no bots.
Or email info@braincrop.io