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Software Engineering Built for
Velocity & Profitability
Pragmatic, production-grade builds for founders and operators who need a working product, not a six-month quote-fest. Direct collaboration with a senior full-stack engineer for a guaranteed flat fee.
- What engineering services does Tessellate Labs provide?
- Tessellate Labs offers fixed-price $5,000 engineering sprints across five primary domains: AI SaaS MVPs (featuring vector search and prompt caching), Vibe-Coding Rescue (hardening AI-generated prototypes), Two-Sided Marketplaces (Stripe Connect), Custom Internal Tools & Portals, and AI Architecture Strategy Consulting.
- Why choose a fixed-price sprint over an agency retainer?
- Traditional agencies bill $40,000 to $90,000 on rolling hourly retainers with junior developers. Tessellate Labs pairs you directly with a senior engineer, scopes a single validated core loop, and delivers clean, production-ready code with 100% IP ownership in 2 to 4 weeks for a guaranteed flat fee.
Trusted by founders & teams from
Five Focused Engineering Sprints
Every sprint includes complete architectural setup, database hardening, payment integration, and full source code handoff.
AI SaaS & Agent MVPs
Ship a production AI web app with persistent vector search (pgvector), frontier reasoning LLMs, prompt caching (up to 90% savings), and Stripe subscription billing.
Vibe-Coding Rescue
Stuck at the 80% wall in Lovable, Cursor, Bolt, or v0? We take your semi-functional prototype, audit and lock down Supabase RLS, normalize schemas, fix Stripe webhooks, and ship a real SaaS.
Two-Sided Marketplaces
Build multi-vendor platforms with automated onboarding, Stripe Connect Accounts v2 split payments, custom vendor dashboards, escrow handling, and platform commission take rates.
Internal Tools & Portals
Replace fragile spreadsheets, messy Airtable bases, and pricey per-seat SaaS tools with tailored internal web apps. Granular Role-Based Access Control (RBAC) and automated operations.
AI Strategy & Architecture
Pragmatic AI advisory for founders and engineering teams. Token economics audits, context window pruning, multi-model evaluation benchmarks, and prompt injection vulnerability reviews.
Have a Unique Product Concept?
Not sure which track fits your product? Submit your rough idea or draft PRD. A senior engineer will review your requirements and propose a tight 4-week scope within 48 hours.
Why Founders Choose Our Sprints
Comparing modern fixed-fee studio execution against traditional agencies and freelancer marketplaces.
| Metric | Tessellate Labs Sprint | Traditional Dev Agency | Offshore Freelancers |
|---|---|---|---|
| Delivery SLA | ✓ 2–4 Weeks (Guaranteed) | 3–6 Months typical | Unpredictable / scope creep |
| Pricing Model | ✓ $5,000 Fixed Fee | $40k–$90k rolling retainer | Uncapped hourly bills |
| Engineering Talent | ✓ Senior Engineer (Tudor Barbu) | Junior devs via Account Mgr | Unverified qualifications |
| Code & IP Ownership | ✓ 100% Day-1 GitHub Access | Agency IP lock-in / withheld repo | Patchy commits & lost context |
| Production Hardening | ✓ Supabase RLS, Stripe, Caching | Over-engineered microservices | Insecure prototypes with no RLS |
How Every $5,000 Sprint Ships
A disciplined, milestone-driven protocol designed to cut waste and get your product into paying users' hands.
Scope Cut & Setup
We ruthlessly cut non-essential features, lock down the core workflow, and initialize your production Supabase database and GitHub repo.
Core Engine & RLS
We build the primary user workflow, normalize relational tables, and implement strict PostgreSQL Row-Level Security policies to protect multi-tenant data.
AI & Stripe Wiring
We integrate frontier reasoning APIs with prompt caching (saving 90% on tokens), wire Stripe subscription checkouts, and harden idempotent webhook listeners.
Hardening & Launch
Automated Netlify deployment, custom domain setup, end-to-end user testing, error monitoring, and clean administrative handoff.
You Work Directly with a Senior Engineer
Hi, I'm Tudor Barbu, founder of Tessellate Labs. When you hire an agency, your budget pays for account managers, layers of bureaucracy, and junior developers learning on your project.
With our sprints, I personally architect and write your code. We collaborate directly via a dedicated Slack channel with direct Loom updates. Architectural decisions are resolved in minutes, not next week's status meeting.
— Founder & Lead Engineer, Tessellate Labs
Everything You Need to Know
Straightforward answers about our engineering sprints, scope limits, and billing terms.
How do you keep the price fixed at $5,000 without surprise invoices?
By being ruthlessly disciplined about Day-1 scope. In Week 1, we identify the single core workflow that validates customer demand and cut out all non-essential features. We use modular, pre-tested architectural components for authentication, PostgreSQL schema configuration, and Stripe webhooks, eliminating repetitive boilerplate.
Can you take over and fix my broken Lovable, Bolt, or Cursor prototype?
Yes. Our Vibe-Coding Rescue sprint is specifically designed for founders who hit the 80% wall. We audit your existing code, salvage your UI assets, rewrite the database architecture with hardened Supabase Row-Level Security, implement idempotent Stripe billing webhooks, and deliver a production application.
Do I own 100% of the code and intellectual property?
Yes, absolutely. You receive full administrative access to your private GitHub repository from day one. You own all IP, source code, database schemas, and assets with zero agency lock-in or ongoing royalty fees.
What modern technologies do you build with?
Our core production stack consists of Nuxt 3 (Vue 3) with Tailwind CSS on the frontend, Supabase (PostgreSQL with pgvector) for data storage, Stripe (including Stripe Connect for marketplaces) for billing, and leading frontier reasoning LLMs (Anthropic Claude, OpenAI, DeepSeek) with prompt caching for AI workflows.
How does communication work during the 4-week sprint?
You communicate directly with Tudor Barbu (founder & lead engineer) via a private Slack channel. We provide asynchronous Loom video walkthroughs and weekly staging deployments so you can test real features without wasting hours in status meetings.
What happens after the 4-week sprint is finished?
Once launched, you have a live, revenue-ready application hosted on your domain with your Stripe keys. You can run user acquisition campaigns, onboard customers, or partner with us for ongoing monthly iteration sprints based on live user feedback.
Start Your $5,000 Engineering Sprint
Tell us about your product concept, target users, and timeline. A senior engineer will review your scope and respond with a clear architectural roadmap within 48 hours.
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