- Symptom
- You have the idea, maybe a Figma file, and a deadline. No codebase, or one nobody wants to touch.
- Response
- I build the MVP end to end: web or mobile front, API, auth, data model, deploy, and observability. You get a product in users' hands and a codebase a team can grow into.
- Resolved
- 2024–25Chief — #2 contributor on the MVP: about 90% of the React/TypeScript frontend and the full Python/FastAPI backend. It now serves 8+ enterprise customers with $1.4M+ in pipeline.
- 2023GridoAI — Founded it and shipped the product: Scala/Cats API, Next.js + Tailwind frontend.
- 2020EkonoMe — Co-founded it and built the accessible mobile app with scheduling, chat, and video calls.
- Stack
- React
- Next.js
- React Native
- TypeScript
- Python / FastAPI
- PostgreSQL
Accepting projectsSão Paulo UTC−3Remote · EN / PT
The runbook for products that have to ship
Davi Suga: senior software engineer, freelance, in São Paulo. I build products end to end, fix the ones that stall, and keep them running.
Look up the symptom.Here is the response.
- Symptom
- Dashboards disagree, pipelines run for half an hour, and nobody knows which CRM export is the real one.
- Response
- I design the pipeline and the warehouse behind it: ingestion from CRMs and APIs, dbt models, orchestration, and storage that stays fast at tens of millions of rows.
- Resolved
- 2025Chief — Moved the data layer to ClickHouse: pipeline runtime from 30 min to 4 min, over tens of millions of HubSpot and Salesforce records a day.
- 2023Crib Equity — Built a Databricks Spark/Scala pipeline to power search and lay the groundwork for an AI model.
- Stack
- ClickHouse
- dbt
- Metaflow
- Spark / Scala
- PostgreSQL
- Redis
- Symptom
- The prototype wowed the board. In production it is slow, makes things up, and nobody can tell when it is wrong.
- Response
- I turn LLM prototypes into features people rely on: grounded context, tool use, streaming interfaces, evals that catch regressions, and fallbacks when the model is unsure.
- Resolved
- 2025Chief — Natural-language questions over CRM data through context-aware SQL generation, answered in a realtime chat over Server-Sent Events.
- 2026The Dealer's Concierge — AI extraction that prefills forms from scanned registrations; the flows drew 3k pageviews across 23 dealerships.
- 2026Espelho — Hackathon MVP: an evidence-bounded customer twin you rehearse sales calls with, by voice (OpenAI Realtime + WebRTC) or text.
- Stack
- OpenAI / Anthropic APIs
- Tool use
- Evals
- Server-Sent Events
- WebRTC
- Symptom
- Pages crawl, the cloud bill climbs every month, deploys are scary, and incidents get solved by whoever is awake.
- Response
- I find where the time and money go and take it back: query plans, caching, bundles, images, containers, and the tracing that keeps it fixed. I can also run releases and incident triage while your team catches up.
- Resolved
- 2025Chief — Queries from 3 s to 30 ms (100×) with row-level security and caching; Docker images from 5 GB to 1.5 GB; incident response time down 70% with OpenTelemetry and Axiom.
- 2024bliver — 126% faster initial load after a frontend infrastructure migration, on a Rust payments platform running on AWS Kubernetes.
- 2023Crib Equity — AWS bill down $1,000 a month with a leaner feature-flag system.
- Stack
- PostgreSQL
- Redis
- OpenTelemetry
- Docker
- Kubernetes
- AWS / GCP
Postmortems
Chief
Senior Software Engineer2024–25
An AI product over CRM data, built from the first commit. Frontend, backend, data pipelines, LLM features, and the observability around them.
8+ enterprise customers · queries 100× faster
- React
- FastAPI
- ClickHouse
- dbt
- LLMs
The Dealer's Concierge
Senior Software Engineer2025–26
An end-to-end document signing workflow for car dealerships: staging, submission, reordering, and PDF filling.
24 dealerships · 17k+ pageviews in 90 days
- TypeScript
- AI extraction
bliver
Technical Lead2024
Distributed payments infrastructure in Rust on AWS Kubernetes, with a card vault, circuit breakers, rate limiting, and failover.
Led backend, frontend, and infra engineers
- Rust
- Kubernetes
- ReScript
- PostgreSQL
TJ-Viagens
Team Entropy Code2026
Prototype for the TJRR Innovation Award: blind airfare bidding with a server-clocked window and a hash-chained audit trail.
Espelho
Hackathon2026
Rehearse with your customer before you talk to them: a customer twin bounded by real evidence, by voice or text, with rewind.
Incident log
The Dealer's Concierge
Senior Software Engineer
Remote
Document signing and AI extraction across 24 dealerships; release manager for a cycle.
Chief
Senior Software Engineer
Remote
Built the MVP; 100× faster queries; pipeline 30 → 4 min.
bliver
Technical Lead
São Paulo
Rust payments infrastructure on AWS Kubernetes.
micro1
Software Engineer, AI analysis
United States
Multi-turn, tool-augmented test scenarios to find LLM edge cases.
now
GridoAI
Founder
São Paulo
Scala API, Next.js frontend; hosting cut by $700+ a month.
Crib Equity
Senior Full Stack Developer
Seattle
Investor and homebuyer dashboards; AWS −$1,000 a month.
Float Capital
Software Engineer
Cape Town
Data validation service on Kubernetes; on-chain leaderboard.
Harmonize
Software Developer
San Francisco
Messaging center, user management, and dynamic forms.
Sambatech
Software Engineer
Belo Horizonte
Offline-first educational video apps with SSO.
Adorie
Mobile / Frontend Developer
São Paulo
Ported the e-commerce app from React Native to the web.
now
EkonoMe
Co-founder
Sweden
Mobile app with scheduling, chat, and video calls.
Alpha Lumen
Software Developer
São Paulo
Volunteer to full-time; built the Compartilhe app.
Root Security
Developer & InfoSec Analyst
São José dos Campos
Deployed a CTF platform; co-wrote a security course.
What are you? We are data, pieces of a cosmic computer program that is the universe.
I started in 2017 at a security shop, deploying CTF platforms. Since then: mobile apps, payments, real estate, fintech dashboards, and AI products, for teams in the US, Europe, South Africa, and Brazil. I work remote, in English or Portuguese.
Contact
Tell me the symptom. We start from there.