06 · Product
Custom Product Design and Development
Bespoke product design and software delivery for the projects that don’t fit a vendor product.
What this is
Some work doesn’t fit a vendor product, doesn’t warrant a permanent team, and can’t be cleanly outsourced to a development shop because the design questions are too consequential. That’s what Calloc builds.
We discover, design, build, and hand off. Same engagement discipline as the rest of our work. No long-tail maintenance retainer required, no scope creep, no hiding behind agile ceremony when the project isn’t shipping.
The work
- Product discoveryUser research, problem validation, and the testing required to make sure we are solving the right thing before we build anything.
- UX and UI designPrototypes, design systems, and the interaction patterns that match how the product will actually be used. Documented for handoff.
- Technical design and scopingArchitecture choices, realistic delivery timelines, and the trade-offs that explain why we are choosing what we are choosing.
- Senior-led deliveryDevelopment teams led by practitioners with operating experience, not by managers who haven’t shipped recently.
- Quality disciplineTest coverage, documentation, and operational runbooks that mean the product survives its launch team.
- Clean handoffInternal owners trained, successor teams onboarded, and a delivered product that doesn’t require us to keep showing up.
When this fits
- Projects that fall between buying off the shelf and building a permanent product team.
- Companies that need a high-stakes product built but don’t have the senior product or design talent in-house.
- Operators with a strong vision who need execution help without inheriting an agency’s process.
- Post-investment situations where a portfolio company needs to ship something specific to unlock value.
How it’s structured
- Project-based engagement with discovery, design, build, and handoff phases.
- Senior-led teams sized to the work.
- Fixed scope where possible, time-and-materials where the unknowns require it.
- Optional oversight retainer after handoff, by request.
Have a product to build that needs senior judgment to design well?
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