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Services · Application & legacy modernization

Modernize the system you have, without stopping the business.

Understand it, untangle it, rebuild what has to be rebuilt, and move it one slice at a time. For legacy systems, aging applications and architectures that no longer fit the product.

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One slice at a time
Users and clientsRouting layer · old or new, per requestless trafficmore trafficMonolithbeforeUsersBillingOrdersReportsSearchAdminone shared databaseServicesafterUsersBillingOrdersReportsown data, own releasessync1 Map2 Extract3 Switch4 Retirerepeat for the next slice
4×lower cloud cost on a telecom telemetry system
5,000+devices on a mining pool we redesigned for several currencies
15architecture decisions for an iGaming data platform
Technologies behind this work
Languages & frameworks
Node.js
Python
PHP
Symfony
Angular
Swift
React
TypeScript
Java
Kotlin
.NET
Go
Spring
Laravel
Data & platform
PostgreSQL
MySQL
MongoDB
Redis
RabbitMQ
Apache Kafka
Docker
Kubernetes
Terraform
Nginx
GitHub Actions
Jenkins
Grafana
What is included

Three areas, from understanding to moving.

We keep the business running while the system changes underneath it.

Understand

Know what you have before you touch it.
  • Technical audit and due diligence
  • Architecture review
  • A map of dependencies and risks

Rebuild

Change what has to change.
  • Monolith-to-services transformation
  • Application replatforming
  • Frontend modernization
  • Technology stack migration

Move

Land it safely.
  • Cloud migration
  • System replacement and decommissioning
  • Technical-debt pay-down
Typical situations

When teams come to us.

Slow

Every release takes longer and breaks something

We find where the time goes, then change the parts that slow you down first, not everything at once.

Stuck

The people who built it have left

We map what is running, document it, and make it safe to change, before any rewrite is considered.

Cost

The cloud bill grows faster than the business

We find the waste in how the system is built and deployed, and cut cost without breaking the flows the business relies on.

What you get

Deliverables you will keep.

Concrete artifacts, documented and handed over.

A map of the current system and its risks
A target architecture and a stepwise plan
The first rebuilt or migrated components
Tests that prove behaviour is preserved
Documentation and a runbook
A decommissioning plan for what goes away
How to start

Three ways to begin.

Larger work starts with a short paid discovery.

All offers
Discovery

Short paid discovery

Map the system, the risks and the constraints. Ends with a clear plan, not a strategy deck.

A few working days to a few weeks
Diagnostic

MVP Diagnostics & Repositioning

For a live MVP with weak traction: improve, narrow, reposition, rebuild or stop.

Fixed-scope diagnostic
Engagement

AI / Data / Cloud Modernization Engagement

Modernize workflows, data, AI systems and cloud architecture.

Custom scope
Proof

Work you can open and check.

All case studies
4×
lower cloud cost
Telecom telemetry and accounting
Cloud cost cut fourfold while the operational data flows the business relied on were preserved.
5,000+
devices, several currencies
NOMP multi-currency mining pool
An open-source-based mining pool redesigned to support several major currencies at device scale.
Reengineered
then shown in Cannes, May 2019
CastingForm film-production marketplace
An international platform for producers, casting teams, coaches and actors, reengineered with us and presented at Marché du Film after our engagement ended.
Where this ends

Not quite what you need?

Want the cloud foundation fixed first?Cloud, infrastructure & dataNeed the data side decided?Enterprise data architectureBuilding something new instead?Software & product development
FAQ

Questions about application and legacy modernization.

Rewrite or modernize step by step?
Usually step by step. A full rewrite is the riskiest option and the hardest to pay for. We recommend it only when the evidence says the old system cannot be saved.
Can you work on a system you did not build?
Yes, after a short paid discovery that maps what is running and where it is fragile.
Will the business have downtime?
We plan the work so it does not. Each step is small, tested and reversible, and we agree the cut-over with you before it happens.

Tell us about the system.

Describe what it does, how old it is and what hurts. We reply with a clear next step, usually within 24 hours.

Discuss your projectBook a routing call