Talk to an engineer
OFFERINGS/SAAS PRODUCT DEVELOPMENT

From an idea to a product other companies pay for

Building the feature is the easy half. Tenancy, roles, billing, onboarding and the admin tooling your own team needs are what decide whether a product can be sold, supported and priced. We build all of it.

Book a technical callSee the build sequence

Where we usually come in

ZERO TO ONE

First version, real users

A founding team with a validated problem and no engineering bench, needing a version that can be sold rather than demoed.

SCALE UP

Ready for bigger customers

An existing product hitting security reviews, tenancy limits or a pricing model that no longer fits.

REBUILD

Off the prototype

Something built fast and now blocking the roadmap, moved onto foundations without stopping the business.

CAPABILITIES

What ships with a Crenspire build

Tenancy and roles

Isolation chosen against your compliance reality, permissions modelled once so every later feature inherits them.

Billing and entitlements

Plans, metering, trials and upgrades wired so a pricing experiment is a config change, not a migration.

Onboarding and admin

The first ten minutes a customer experiences, plus the internal tools your support team needs on day one.

Design in-house

Interface and interaction work sit on the same team as the code, so there is no handoff gap and no unbuildable mockups.

ENGAGEMENT

How the work runs

Short cycles, visible progress and a scope you can change. You see working software every week rather than a status report.

WHAT YOU KEEP

The repository, the infrastructure code and the documentation. In your accounts, under your licence, from the first commit.

First fortnight

Shape and scope

Flows, data model and the cut list. We agree what version one deliberately does not do.

Weeks after

Vertical slices

Working features end to end, deployed continuously, reviewed by you every week.

Before launch

Hardening

Auth, rate limits, backups, observability, and a security questionnaire you can answer honestly.

Then on

Run or hand over

We keep shipping on a retainer, or we onboard your hires and step back.

Straight answers

How long to a first version?

Most first versions land between eight and sixteen weeks, depending on integrations and how much the scope can be cut.

Who owns the code?

You do, from the first commit, in your repository and your cloud accounts.

Can you work with our developers?

Yes. Shared repository, shared standards, and a named lead on our side who is accountable for our part.

What stack do you use?

TypeScript with Next.js, or Laravel where it suits the team, on Postgres and AWS. We favour boring choices your next hire already knows.

Tell us what the product needs to prove

Thirty minutes with an engineer who has shipped this before. You leave with a scope and a straight answer on feasibility.

Book a technical call