Francisco Luna
Francisco Luna

Product Engineer · Fractional Technical Partner

I build products that scale, not toys.

Founders come to me when they want to build a serious product and build the part no one wants to own: the database, deploys, migrations and alerts. I keep everything documented, so you know what is happening and why.

I built Scrapecat, live and open source. Before that, founding engineer at a B2B2C startup whose launches reached ~11,000 people organically. Projects from $4,000, contract or retainer.

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Featured Work

What people say

“Francisco has a rare ability to own a complex technical vision from end to end, designing robust backend systems, building scalable APIs, and seamlessly translating product requirements into reality. His deep sense of ownership and proactive problem-solving make him an invaluable asset.”
TP

Tae Park

Senior Analytics Consultant at Health Care Service Corporation · Worked with Francisco at Happy Quokka Inc.

LinkedIn recommendation · October 13, 2025

“Francisco understands both the technical side of a product and the business vision behind it. He built Quokka Buddy and FitMate from the ground up and carried both through the pivots that followed. He explains technical tradeoffs clearly to non-technical people. I would gladly work with him again, and I recommend him without hesitation.”
VB

Vanessa Balistreri

Project Coordinator · Worked with Francisco at Happy Quokka Inc.

LinkedIn recommendation · October 2, 2026

“Fran is a driven engineer and an invaluable partner on our project. He consistently took the time to understand design intent, asked thoughtful questions, and helped translate ideas into practical, high quality solutions. His collaborative mindset made a real impact on the outcome of the project and he would be a huge asset to any team.”
JP

Julie Park

Product Designer · Worked with Francisco at Happy Quokka Inc.

LinkedIn recommendation · January 5, 2026

Experience

Founder and Independent Engineer

Luna Labs

I take on contract engineering work for founders. AI systems, internal tools and SaaS. Scrapecat turns git history into plain-English engineering reports. Live demo, no signup: Scrapecat Link

July 2026 - Present

Founding Engineer (Contract)

Happy Quokka Inc.

Founding engineer and later one of two engineers on a five-person team, building the multi-tenant B2B2C platform for an 11,500-member gym network, from architecture to launch across two product pivots. Cut a core query path from 817ms to 119ms, about 7x, on Quokka Buddy by moving Postgres to a private network.

May 2024 - June 2026

Two Years as a Founding Engineer

Happy Quokka Inc. — the founding engineer years.

Two products shipped, 141 integration tests on tenant isolation before the first deploy, and a query path taken from 817ms to 119ms. Read the full story.

Full Stack Developer

Genesis Consulting US

Optimized PostgreSQL queries for high-traffic spikes and built compliance-grade document workflows with encryption.

September 2023 - February 2024

Technologies

Backend

  • Node.js
  • TypeScript
  • PostgreSQL
  • Redis
  • Python
  • FastAPI
  • REST
  • WebSockets
  • RAG pipelines
  • Stripe

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS

Data and AI

  • pgvector
  • Drizzle ORM
  • OpenAI
  • embeddings
  • Supabase

Cloud and DevOps

  • AWS
  • DigitalOcean
  • Docker
  • GitHub Actions
  • Cloudflare Workers
  • Nginx
  • Sentry
  • Playwright
  • BetterStack
  • Vercel

AI-assisted delivery

  • Claude Code

Blog