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Build & Launch a Production
AI SaaS MVP in 2–4 Weeks
Stop getting stuck at the 80% vibe-coding wall. A senior full-stack engineer hardens your Supabase schema, connects frontier LLMs, wires Stripe, and ships your AI product for a guaranteed flat fee.
Trusted by founders & teams from
Hit the 80% Vibe-Coding Wall in Lovable or Cursor?
Where AI Prototypes Break Down
Prompting Lovable, v0, or Bolt builds a stunning UI in 3 days. But taking that final 20% into production stalls non-technical founders for months:
- ✗Missing Row-Level Security (RLS): User A can accidentally query or overwrite User B's private data.
- ✗Fragile Webhooks: Stripe payments succeed, but customer subscription permissions fail to update.
- ✗Runaway Token Costs: Lack of prompt caching and context pruning burns budget in hours.
The Tessellate Production Hardening
We take your Lovable prototype—or build from scratch from your specification—and engineer a hardened, scalable foundation ready for paying customers:
- ✓PostgreSQL with Strict RLS: Guaranteed multi-tenant data isolation and audit trails.
- ✓Production Stripe Billing: Idempotent webhook handlers, automated tier upgrades, and portal access.
- ✓Token Defense & Streaming: Prompt caching (90% savings), rate limiting, and SSE streaming for instant UI response.
4 AI Architectures We Ship in Production
We don't build toy wrappers. We engineer pragmatic systems that solve specific, high-value business workflows:
RAG & Document Intelligence
Chat with documents, contract analysis, and custom enterprise knowledge bases. We use native Supabase pgvector with HNSW indexing to deliver millisecond semantic search without expensive vector silos like Pinecone.
AI Agents & Multi-Step Workflows
Complex background pipelines that execute asynchronous tasks: lead enrichment, financial document extraction, automated PRD generation, or multi-stage research workflows powered by Claude 3.7 Sonnet (hybrid reasoning) and DeepSeek R1.
Vertical AI SaaS with Built-In Moats
Niche B2B SaaS platforms combining domain workflows with proprietary user context. We engineer multi-tenant workspaces, team seat invitations, audit logging, and custom permission trees so enterprise buyers feel confident adopting your tool.
Streaming Multimodal Tools
Ultra-low-latency web apps that feel alive: Server-Sent Events (SSE) token streaming for immediate output feedback, Whisper audio-to-text transcription, and vision document parsing with GPT-4o.
What's Included in Your $5,000 Sprint
You receive a turnkey, production-grade application ready for paying customers:
Hardened Supabase Architecture
PostgreSQL schema with strict Row-Level Security, automated backups, and native pgvector embeddings.
Frontier LLM Integration
Wired to Claude 3.7 Sonnet, GPT-4o, or DeepSeek V3 with prompt caching (90% savings) and rate-limiting cost caps.
Stripe Billing & Subscriptions
Hosted Stripe Checkout, webhook idempotency, customer portals, monthly/annual tiers, or usage credit packs.
Fast Nuxt 3 & Tailwind Frontend
Server-side rendered, edge-cached, fully responsive, and accessible UI designed to convert visitors into users.
Streaming Real-Time Output
Zero-latency Server-Sent Events (SSE) so users see tokens stream instantaneously as the LLM generates them.
100% IP & Source Code Transfer
Full ownership of your clean GitHub repository. Zero vendor lock-in. Any future engineer can easily extend it.
You Work Directly with a Senior Engineer
Hi, I'm Tudor Barbu, founder of Tessellate Labs. When you hire an agency, you typically pay for junior developers learning on your dime while an account manager relays messages.
With our $5,000 sprint, I personally architect and build your product. We collaborate directly via a dedicated Slack channel. Questions are resolved in minutes, not next week's steering committee.
— Founder & Lead Engineer, Tessellate Labs
Our 4-Week AI Sprint Process
Week 1: Architecture & Data Scoping
Define the core user loop, database schema, Row-Level Security policies, and prompt engineering strategy.
Week 2: Core AI Engine & Vectors
Implement Supabase pgvector indexing, LLM tool pipelines, prompt caching discounts, and streaming SSE responses.
Week 3: Stripe Billing & Frontend
Wire up Stripe checkout, user authentication, customer portals, responsive UI components, and error states.
Week 4: Security Audit & Launch
Stress-test token usage caps, run security audits, connect custom domains, and hand over 100% of repo keys.
Frequently Asked Questions
Yes. A large portion of our clients come to us with a non-functional or semi-functional prototype created in Lovable, Cursor, v0, or Bolt. We inspect your existing code, extract the frontend UI assets, rewrite the database logic with hardened PostgreSQL Row-Level Security, wire idempotent Stripe webhooks, and launch a production app in 2–4 weeks.
Ready to Start?
Briefly describe your challenge or the workflow you want to automate. I'll get back to you with a practical starting point within 24 hours.
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