Bounded scope
One business capability per phase, with an explicit boundary. Small enough that a reviewer can hold the whole thing in their head.
For enterprise modernization teams
Modernize one bounded business capability at a time.
Big-bang replacements are where modernization programs go to fail. We rebuild a legacy or no-code capability as custom code that runs alongside the system it replaces, integrates through your existing access model, and cuts over with a rehearsed rollback. Each step is bounded, reversible, and delivers on its own.
Browse the migration paths, see how we handle security and compliance, or walk through the process.
How we de-risk a program
Five principles behind every phase.
The goal of each phase is a capability that is live, integrated, and reversible — not a milestone on a slide. These are the invariants we hold to on an enterprise program.
Coexistence, not cutover
The new service runs alongside the incumbent system through defined interfaces, so nothing is switched off before its replacement is trusted.
Your access model
We integrate with your identity provider, SSO, and role model rather than standing up a parallel one that your security team then has to reconcile.
Reversible steps
Every phase has a rehearsed rollback. Because the old path stays live, reverting is a routing decision rather than a rebuild.
Evidence as you go
Architecture, data-flow, access, and testing documentation are produced during the build, so readiness evidence exists when your review needs it.
You own the result
The code ships to your repositories from the first commit, on a maintainable, hire-able stack with no lock-in to us.
Phased coexistence
The new capability runs beside the old one until it earns the traffic.
Phase 01
Inventory and boundary
We map the capability, the data it owns, and every system it integrates with, then draw the boundary for phase one — what moves, what it talks to, and where the interfaces sit.
Phase 02
Build alongside
The capability is rebuilt as custom code running in parallel with the existing system, integrated through your identity and access model and the defined interfaces to upstream and downstream systems.
Phase 03
Shadow and validate
Before any traffic depends on it, the new capability runs against real inputs and is validated for behavior and data parity against the incumbent, with discrepancies surfaced as reports.
Phase 04
Controlled cutover
Traffic moves to the new capability deliberately — often gradually — with the old path kept live as a fallback and a rehearsed rollback documented for the phase.
Phase 05
Retire and hand over
Once the new capability is trusted, the old path is retired. You receive the code, infrastructure, and documentation, and the next capability becomes the next phase.
Access & integration
Fit your estate, don’t fork it.
- Integrate with your existing identity provider and SSO.
- Map to your role and permission model, not a parallel one.
- An integration inventory of every upstream and downstream system.
- Defined interfaces so services stay decoupled and replaceable.
Rollback & readiness evidence
Reversible steps, documented for review.
- A rehearsed rollback for every phase, with the old path kept live.
- Architecture and data-flow documentation for your security review.
- An access model and testing results prepared as readiness evidence.
- A clear line between our engineering and your compliance program.
We build for readiness and prepare evidence; certification and the legal determination stay with your teams. See security and compliance.
Common starting points
Bounded capabilities that make a strong first phase.
A CRM or workflow tool
A custom or no-code CRM that has outgrown its platform.
Custom CRM to codeA Salesforce-bound process
A business process locked into Salesforce you want to own as code.
Salesforce to codeA no-code app in production
A Bubble or similar app carrying real load that now needs to scale.
All migration pathsFrequently asked
What modernization teams ask on the first call.
Concrete answers on coexistence, access, rollback, and how we support your security review.
- Do we have to replace the whole system at once?
- No — and we would advise against it. We modernize one bounded business capability at a time, running the new service alongside the existing system until it has proven itself. That keeps each step small enough to reason about and reversible if something is wrong.
- How does the new system coexist with our existing stack?
- The rebuilt capability runs in parallel with the incumbent system, integrating through defined interfaces rather than replacing everything behind the scenes. Traffic and data move over deliberately, and the old path stays available as a fallback until the new one is trusted.
- How do you fit our access and identity model?
- We integrate with your existing identity provider and access model rather than inventing a parallel one — SSO and role mapping so the rebuilt capability respects the same permissions and audit expectations as the rest of your estate.
- What does rollback look like?
- Each phase ships with a documented, rehearsed rollback. Because the new capability runs alongside the existing system rather than replacing it wholesale, reverting a step means routing back to the path that is still there, not an emergency rebuild.
- Can you support our security review?
- Yes. We build technical controls to your requirements and prepare evidence — architecture and data-flow documentation, an access model, and testing results — to support your security review and readiness work. The certification and legal determination stay with your teams.
Scope a first phase with us.
Book a migration review and bring the capability that hurts most. We’ll define a bounded first phase — coexistence, access, rollback, and the evidence your review will ask for.