What we build together.

This is the core of the practice: taking a product concept and engineering it into a functional first version. Sometimes that means a looks-like, works-like prototype for a demo day; sometimes it means a complete v1 you can put in front of pilot customers. We agree on the target early, because it drives every technical decision that follows.

The work spans the full stack of a physical product — circuit design and electronics, embedded firmware, companion or cloud software, and the mechanical design that holds it all together. Because one person carries the whole architecture, the pieces are designed to fit each other from the start, not reconciled at the end.

• System architecture: choosing what to build, buy, and defer
• Electronics design and prototype fabrication
• Embedded firmware and application software
• Enclosure and mechanical design for prototyping processes
• Bench testing and demo rehearsal against real scenarios

Founders with a validated idea and a deadline — a raise, an accelerator demo day, a pilot commitment — who need the engineering done right the first time.

A prototype that cannot become a product is a liability dressed as an asset — and experienced investors can tell the difference. This service line makes sure the thing you demo has an honest path to production, and that you can speak to that path fluently when diligence questions arrive.

That means design-for-manufacturing review before tooling money is spent, component selection with sourcing and lifecycle in mind, and a production plan matched to your realistic volumes — not a fantasy of a million units, and not a garage operation that collapses at a thousand.

• Design-for-manufacturing and design-for-assembly review
• Bill-of-materials costing across volume tiers
• Supplier and contract-manufacturer identification and evaluation
• Production process selection and transition planning
• Risk register: single-source parts, long leads, compliance items

Teams with a working prototype who need to answer "what does it cost at 10,000 units?" — and teams early enough to avoid designing themselves into that question's worst answers.

Investors do not fund prototypes; they fund the story a prototype proves. This service line turns engineering work into the documents that carry a raise: the technical narrative, the architecture, the cost model, the development roadmap, and an honest account of what remains risky and how you will retire that risk.

The same material serves you past the raise — it becomes the technical foundation your first hires onboard from, and the paper trail that makes later diligence (acquirers, partners, regulators) routine instead of frantic.

• Product development narrative for investor audiences
• System architecture documentation and diagrams
• Costed bill of materials and unit-economics model
• Development roadmap with milestones and burn estimates
• Technical risk assessment and mitigation plan

Founders heading into a raise who need their technical story as sharp as their pitch — whether or not Paximi built the prototype.