Hero offer

Turn enough proof into a real product foundation.

V1 Product Build is a custom-scoped engagement for teams that are ready to move beyond validation and build a durable first version of a product, workflow, platform, or market-facing system.

We build with the product thesis, user behavior, GTM path, and evidence still attached, so the output is not just shipped code. It is a product foundation that can be launched, learned from, and improved.

Use this when the product has earned a real build.

  • You validated a wedge and now need a real V1.
  • You have early customers, pilots, or internal users waiting for a usable product.
  • You need to replace a prototype, no-code system, manual workflow, or fragile MVP.
  • You need a customer-facing product, platform, marketplace, workflow, or SaaS foundation.
  • You are a mature team building a serious new product surface or internal product.

When this is probably not the right starting point

  • The market, user, or workflow is still too unclear. Start with Validation Sprint.
  • You need a narrow test artifact, not a durable product. Start with Validation MVP Build.
  • The request is mostly AI/internal workflow automation. Start with AI Workflow / Internal Product Build.
  • You need ongoing capacity without a defined product mission. Start with discovery before support or squad work.
  • You only have a feature list, but no decision, user, or launch logic.

What happens during the engagement

  1. Short paid discovery

    We define product scope, users, workflows, technical constraints, launch standard, risk, and what should wait.

  2. Scope and architecture

    We turn the product direction into a build plan, architecture, milestones, and delivery cadence.

  3. Design and build

    We implement the product foundation across the required frontend, backend, integrations, data, AI, auth, permissions, analytics, and operational surfaces.

  4. Instrument and test

    We include the tracking, QA, release checks, and feedback loops needed to learn from the product after launch.

  5. Launch and hand off

    We support launch, document the system, and recommend the next support or growth path.

What you get

  • Product scope and roadmap.
  • V1 requirements brief: users, workflows, roles, features, constraints, and success criteria.
  • Technical architecture plan.
  • UX flows and interface specifications.
  • Frontend implementation.
  • Backend implementation.
  • Database, API, auth, permissions, or integration work as required.
  • AI/data workflow implementation where relevant.
  • Analytics, event tracking, observability, and operational metrics.
  • QA plan and release checklist.
  • Launch support plan.
  • Technical documentation and handoff.
  • Post-launch support recommendation.

Does this start with discovery?

Yes. V1 Product Build is always custom scoped. A short paid discovery phase defines the first build phase, dependencies, risks, timeline, launch standard, and what should stay out of scope.

This protects both sides from turning a real product build into blind build-to-spec work.

See how discovery works

Typical timeline

Most V1 builds take 8-16+ weeks after discovery, depending on product complexity, integrations, technical state, launch standard, and team involvement. Larger builds should be phased.

Relevant proof patterns

The AI Workflow Automation Tool case shows how Proof Engine narrows a broad product idea into a specific workflow with measurable value before expanding into a broader platform.

View proof patterns

FAQ

Frequently asked questions

When a wedge is validated and needs a real first version, when early customers, pilots, or internal users are waiting for something usable, or when a prototype, no-code system, manual workflow, or fragile MVP has to be replaced by a foundation that can be launched and improved.

Most take 8-16+ weeks after discovery, depending on product complexity, integrations, the technical starting point, launch standard, and how involved your team is. Larger builds should be phased rather than committed as one long block.

Because it is always custom scoped. A short paid discovery defines the first build phase, dependencies, risks, timeline, launch standard, and what should stay out of scope. That protects both sides from turning a real product build into blind build-to-spec work.

Product scope and roadmap, a requirements brief, technical architecture, UX flows, frontend and backend implementation, database, API, auth, permissions and integrations as required, AI or data workflow where relevant, analytics and observability, QA and release checklist, launch support, and a technical handoff.

When the market, user, or workflow is still unclear — start with a Validation Sprint. When you need a narrow test artifact, start with a Validation MVP Build. When you only have a feature list but no decision, user, or launch logic, the build has nothing to aim at.

Contact

Bring us the decision you need to make.

Tell us where you are, what you are trying to prove, and what would make the next move worth it.

Kirill Artsymenia, Founder of Proof Engine

Founder, Proof Engine

Kirill Artsymenia

Reads every brief personally. Usually replies within 24h.

Opens your email app with the brief pre-filled.Book a routing call

Prefer a conversation first?

If you would rather talk it through before sending a brief, book a short routing call and we will point you to the right next step.