thisago

Leads engineering scope. Complementary stacks with CTO (CTO on backend/SRE/infra, me on full-stack).

Stack: Go, TypeScript, React, MongoDB, AWS ECS, Terraform, GitHub Actions, OpenTelemetry.

• Reports to the CTO. Leads 2 engineers and 1 QA. Promoted internally, was already the senior reference.

• Sets architectural direction across Go API, React app and scraping cron.

• Agentic dev setup across repos. opencode and claude-code, MCP for Jira with retrieval of PO context.

Main dev across Go API, React app and scraping infra.

Stack: Go, TypeScript, React, Next.js, MongoDB, AWS ECS, Lambda, Terraform, GitHub Actions, ko, OpenTelemetry.

• Co-led TS to Go backend rewrite, already surpass the legacy one. ~33.7k LoC across 219 files. Top-2 contributor (+10.9k/-7.3k).

• Refactored front-end from Next.js to React SPA.

• Took over AWS ECS infra after the prior senior left. Terraform-defined workloads.

• Maintains code review and CI/CD pipelines in GitHub.

• Production OpenTelemetry across Go services. Prometheus and Grafana.

• Shipped a proto-RAG search system via MongoDB vector search and LLM intent handling classification.

• AI code review for the strict process established.

Primary author across TS/Node clean-arch backend, Next.js front-end and multi-platform scraping.

Stack: TypeScript, Node.js, Next.js, Prisma, MongoDB, AWS Lambda, SST, OpenAI API, Whisper STT.

• Primary author of TS clean-arch backend. Top contributor.

• Built scrapers for 5 online platforms. HTML, GraphQL, undocumented private APIs.

• Hybrid recommender microservice via embeddings and LLM intent system.

• Built a WhatsApp Business bot via OpenAI tool-calling and Whisper STT in TypeScript deployed in a Lambda via SST for simpler ops.

• Migrated from Emacs GTK to Emacs ncurses inside tmux. Started to live in terminal B)

Firmware on low-resource embedded. Arduino SDK, Espressif, real-time. 2-person team with one hardware eng. Project shelved.

Stack: C++, Arduino SDK, ESP32, AVR (Nano/Mega), automated simulation harness.

• Designed the software together with the hardware engineers, taking the most of the micro-controllers.

• Fully tested via an automated simulation engine.

• Linked-list based mutable arrays on AVR.

Built and maintained PHP systems together with Joomla and OSCommerce CMSes.

Stack: PHP, Joomla, OSCommerce, MySQL.

• Bug fixes

• Plugin development

• Integration with Joomla plugin APIs

FOSS since 2020. Contributing and maintaining.

• More than 90 open source repositories in GitHub and even more in Codeberg

• Values opening PRs and issues in the tools I use

• Migrated from VSCodium to Emacs. Maintains a RPi homelab. Explores Nim. Reverse engineering for fun.

Incomplete

Talos single-cluster Kubernetes managed via OpenTofu and FluxCD on Vultr. Intended to host my apps.

Personal engineering blog with thoughts and some reverse engineering write-ups.

Highlighted posts:

• Reveng Gol Airlines check-in to cancel seat selection

• Guix and Nix in Fedora minimal TemplateVM at QubesOS

• Makefile for React! Parallelism with smart target calling

Install and configure LineageOS apps, including a complete terminal environment in Termux.

Fully offline SSR bible website made with Nim, featuring translation comparison and search.

Self hostable, open source.

Emacs Org Mode babel backend for mongosh.