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Lazar Gošić
Download CVlazar22.gosic@gmail.com

Belgrade, Serbia

All work
ProductUnakomi

Promobet Operations Platform

One system for construction and building-materials companies: CRM, materials, production, stock and warehouses.

Role
Co-Founder
Period
Sep 2026 – Present
Stage
In build
Team
2 co-founders
Operations · Inventory

Inventory

3 warehouses
MaterialsProductionStockWarehousesCRM
ItemStoreQtyStatus
Decorative block · Stone greyWH-011,240In stock
Decorative block · SandWH-01380Low
Paving stone · 6 cmWH-022,960In stock
Fence cap · AnthraciteWH-020In production
Garden edging · NaturalWH-03715In stock
Wall coping · WhiteWH-0396Low

Production this week

MonSun

The problem

Construction and building-materials companies need CRM, materials, production, stock and warehouse management, and those usually live in separate tools. The platform brings them into one system, closer to an ERP than a plain CRM.

What I did

  1. 01Co-building an operations platform that brings CRM, materials, production, stock and warehouse management into one system.
  2. 02Building and validating it inside Promobet, an established manufacturer of decorative blocks and construction materials that is both launch customer and majority partner.
  3. 03Built on a serverless TypeScript stack (Cloudflare Workers, Hono, oRPC, Drizzle / Postgres, React 19) by AI coding agents working under written rules, phased plans with success criteria and CI quality gates.
  4. 04Co-leading product, development, marketing and sales as one of two founders.

Where it stands

Nov 2026Production launch
  • Launch customer and majority partner on board from day one.
  • Backed by an angel investor.
  • Production launch planned for November 2026.

Stack and methods

TypeScriptCloudflare WorkersHonooRPCDrizzlePostgresReact 19