Bruno Ribeiro do Vale

In-house SaaS products and custom systems. Hands-on across architecture, backend, infrastructure, payments, tax compliance and product, building with AI coding agents.

• •Conttrole — tax and finance SaaS with 1,900+ commits and ~5,600 automated tests since Mar 2026: Brazilian e-invoicing (NF-e, NFC-e, NFS-e, incl. IBS/CBS tax reform), public Fastify/OpenAPI API, webhooks with delivery history and retries, white-label resold by partners and an MCP server
• •Multi-gateway billing (Asaas, Woovi with Pix Automático, Mercado Pago) with per-tenant routing and failover, plus bank reconciliation via Open Finance (Pluggy)
• •Creator Platform — Pix payments received via webhook become live stream alerts through WebSocket and Redis pub/sub; AI clip engine running locally (GPU Whisper transcription, Ollama LLM and vote-trained ranking)
• •Radar e-CAC (multi-tenant SaaS integrated with Serpro, Brazil's federal data service) and EMX (custom system for an accounting firm, with real payouts guarded by MFA and approval)
• •Stack: Next.js, Fastify, Prisma, PostgreSQL (Neon), Trigger.dev, Redis, Cloudflare R2, Railway and Vercel, with Vitest and Playwright in CI (GitHub Actions)

Hands-on CTO of a payments platform (PSP, gateway, banking-as-a-service and white-label) serving ~1,000 merchants and 15 white-label partners, with BRL 1–6M/month in TPV. Technical owner of architecture, AWS infrastructure, security, production operations and a 10–15 person team. Senior Developer to CTO in 6 months.

• •Rebuilt the MVP from scratch: a makeshift Next.js "API" hosted on Vercel became a production-grade AWS platform with 10 ECS services (Node.js/TypeScript and Go) and 15 Lambda functions
• •Cut monthly AWS spend by ~87%, from BRL 15k to around BRL 2k
• •Designed the multi-tenant architecture powering 15 white-label operations on a single platform
• •Built payment flows with SQS-based asynchronous processing, idempotent webhooks, settlement and reconciliation on RDS (PostgreSQL)
• •Designed card tokenization that keeps the PAN out of integrators' reach, using PCI DSS as the reference
• •Implemented mTLS with an in-house CA (client certificate issuance with node-forge and CRL-based revocation on ALB), inside a private VPC with bastion hosts and secrets in Secrets Manager
• •Introduced CI/CD with GitHub Actions and AWS Copilot, automated testing, self-hosted Sentry (Kafka, Snuba) and a request-audit data lake with Kinesis Firehose, S3 and Athena

• •Built a web system and the infrastructure connecting headquarters and branch offices, with data synchronization between locations

Esports organization.

• •End-to-end system design and implementation: data modeling, Node.js APIs and React + TypeScript interfaces
• •Built from scratch and operated a multiplayer GTA roleplay game server in Lua, including gameplay systems, player data and server operations