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Own the capability

Own the capability. Retire the vendor product.

Replace expensive, inflexible vendor products with business capabilities built and owned in-house — from telecom billing to cloud security.

04 / Build In-House
vendor productown itplatformapimldomainbuilt · yours
Vendor exitBillingBSSCSPMCustom platformsBuild vs buy
The problem

Packaged products dictate your roadmap, meter your growth, and rarely fit exactly. When a capability is core to your business, renting it caps your differentiation and compounds your costs.

Signs it's time

If a few of these sound familiar, this is the work to start.

  • 01A vendor product dictates your roadmap and release timeline.
  • 02Per-seat or per-transaction pricing scales its cost against your growth.
  • 03The product covers part of your needs and customization is painful.
  • 04A capability core to your business is controlled by someone else.
Outcomes
Roadmap
you own, not the vendor
Fit
to your exact process
Lower
per-unit cost at scale

What we do

01

Billing & revenue (Amdocs et al.)

Build modern, event-driven billing and revenue platforms tailored to your products — replacing rigid telecom BSS suites.

02

Cloud security posture (Sonrai et al.)

Stand up your own CSPM/CIEM capability — policy-as-code, continuous scanning, and remediation you control end to end.

03

Domain platforms

Identity, entitlements, catalog, orchestration — the domain-specific platforms where owning the roadmap is a competitive edge.

04

Product-grade engineering

Delivered as real products: SLAs, observability, docs, and a team model so it lives on after we leave.

In practice

Take a telecom paying escalating fees for a rigid billing suite it has outgrown. We design a lean, event-driven billing platform around the rating and invoicing rules that actually matter, build it alongside the incumbent, and shift traffic as each product line reaches parity. The contract lapses, unit costs fall as volume grows, and the roadmap is finally theirs.

Illustrative scenario — not a specific client.

How the engagement runs
1

Pinpoint where a vendor product blocks differentiation or scales its cost with you.

2

Design a lean, buildable capability targeting the 20% of features you truly need.

3

Build incrementally alongside the incumbent, migrating traffic as parity lands.

4

Retire the product and transfer ownership to your team.

What you walk away with

Concrete artifacts, not a slide deck.

  • A lean, buildable design targeting the 20% of features that matter.
  • A product-grade platform with SLAs, observability, and documentation.
  • Incremental traffic migration off the incumbent as parity lands.
  • A decommissioned vendor product and a retired contract.
  • A team model so your engineers own and extend the capability.
FAQ

Good questions.

Isn't building riskier than buying?

For undifferentiated needs, buy. We recommend building only where a capability is core to your business and the vendor caps your differentiation or scales its cost against you.

How long until we can leave the vendor?

You do not leave all at once. We migrate incrementally as the new platform reaches parity feature by feature, so you never depend on a single cut-over.

What happens after you build it?

We hand over a real product — docs, SLAs, and an ownership model — and can stay on for support, but the goal is that your team owns it fully.