UK-based · Available for new projects
I help SaaS startups, agencies, and small teams turn rough specs into production-ready Python services. Fixed scope, fixed price, shipped in days — not weeks.
Native Portuguese speaker working in English · comfortable with briefs in either language
I work asynchronously with clients across Europe and North America, in English or Portuguese, on focused fixed-scope projects in FastAPI, API integrations, and data pipelines. Written-first communication, full overlap with European business hours, and code that ships with the docs your team needs to take it over.
Three things, done well. Each scoped fixed-price; no retainers, no open-ended hourly contracts.
MVP backends with auth, organisations, Stripe billing, and multi-tenant data isolation. Production-shaped, not toy code.
Typical timeline: 1–2 weeks
Stripe, HubSpot, Notion, OpenAI, custom REST or GraphQL. The hard part is idempotency and retries — I design for both.
Typical timeline: 3–7 days
Public data sources extracted with httpx, Scrapy, or Playwright. Validated, deduplicated, ready for your warehouse.
Typical timeline: 3–10 days
Two open-source reference projects showing patterns I reuse across client work. Read the code — judge whether the shape matches what you need before we talk.
Open-source FastAPI MVP backend
Reference codebase showing the shape of MVPs I deliver to early-stage SaaS clients. JWT auth, organisations + RBAC, Stripe Checkout, idempotent webhooks, and multi-tenant PostgreSQL via Row-Level Security. Runs locally with `docker compose up`.
Async scraping + ETL pipeline
Template for resilient public-source scraping with retry, rate-limiting, and structured output. Uses books.toscrape.com as an ethically safe demo source. Async httpx + selectolax parsing + Pydantic validation + PostgreSQL upsert + CSV export.
The four things that decide whether a project goes well.
Briefs become a concrete spec and a written quote within 24 hours. We only kick off when we both agree on what 'done' looks like.
Daily written updates on active projects. Short Loom walkthroughs replace long calls when something needs visual context. UK time, full overlap with European business hours.
Typed Python, tests where they matter, Docker setup, README, .env.example, runbook. Your team should be able to pick it up cold and ship.
Permissive handover. No vendor lock-in, no managed services I control, no monthly maintenance fee unless you ask for one.
Send a brief — project description, the job post, or a Loom walkthrough. I'll come back within 24 hours with a scoped quote and a milestone plan.
Comfortable with briefs in English or Portuguese, written-first. Rates in USD or EUR; happy to invoice in GBP via Revolut if that suits your accounting setup.
joaopaulo@biggree.com →Upwork, Malt, and LinkedIn profiles coming soon.