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renanlido.me

Available for contracts

I build systems that can't go down.

Tech Lead and senior full stack developer. Ports running 24/7, stadiums with 80,000 people, World Cup-scale campaigns — when going down is not an option, the code is mine.

Let's talkSee the proof
Companies that trusted my code:
  • Embraer
  • Heineken
  • Priime
  • Bilheteria Digital

uptime: renan.exe — 17 years writing code, zero intention of stopping

Proof it works

Less "passionate about technology", more production numbers. Four real operations my code keeps — or kept — standing.

Priime

Architecture & Tech Leadership · 2022 — today

Three ports that never sleep

The port terminals of Aratu, Salvador and Ilhéus run 24/7. A truck stuck at the gate means losses by the minute — and the software deciding whether that gate opens is mine.

  • Tech leadership of the mission-critical port operations platform, applying Clean Architecture and DDD
  • Rewrite of the Terminal Operating System (TOS) and gate control with an OCR/ALPR pipeline: cameras read the plate, the system decides, the gate opens
  • PACS — physical access control with facial recognition, orchestrating cameras, turnstiles and controllers
  • Event-driven triage yard with real-time updates over Server-Sent Events
continuous operation
24/7
port terminals
3
automated gates
OCR/ALPR

Tools of the trade

  • NVIDIA DeepStream
  • Node.js
  • Go
  • RabbitMQ
  • Redis
  • MinIO
  • MediaMTX
  • TypeScript

Bilheteria Digital

Full Stack Developer

80,000 people, one turnstile, zero second chances

Match day has no replay: either the ticket validates at the turnstile, or tens of thousands of people are stuck outside the stadium.

  • Ticket integration with stadium turnstiles, sized for an estimated 80,000 tickets per event
  • Serverless automation of ticket splitting, compression and export integrated with a legacy PHP system — an hours-long process dropped to minutes
  • Centralized high-volume transactional email dispatch service
  • Collection and processing of large financial transaction volumes via EDI, with rate-limiting and low-load windows
tickets per event
80k
ticket exports
h → min

Tools of the trade

  • Node.js
  • AWS Lambda
  • Serverless Framework
  • PHP
  • TypeScript

Heineken

Senior Developer — Backend

A backend that survives World Cups and Carnival

A drink-redemption campaign on a Brazil match day: millions of thirsty people holding coupons, all at once. The backend cannot even blink.

  • Backend of the redemption platform for seasonal, high-volume campaigns — football matches, the World Cup, championships, Carnival and one-off promo events
  • Serverless architecture sized for extreme, unpredictable traffic spikes
traffic peaks
Copa

Tools of the trade

  • TypeScript
  • Serverless Framework
  • AWS Lambda

Embraer

Senior Developer

Modernizing the people who build airplanes

An aircraft manufacturer's internal systems compute costs worth millions. You don't tear legacy down: you modernize it mid-flight.

  • Rewrite and modernization of legacy systems for data ingestion and advanced internal cost calculations
  • Micro-frontends with Module Federation on top of distributed systems
Module Federation
micro-fe

Tools of the trade

  • React
  • Module Federation
  • TypeScript

Full stack, all the way down

"Full stack" here is not a figure of speech. Versatility is how I deliver systems that don't fall over: if the problem crosses layers, I cross them too.

Interface

what users see, click and judge

ReactNext.jsAngularVueReact NativeModule Federation
APIs & services

where the logic lives and the bug hides

Node.jsNestJSExpressAdonisJSGoPHPPrisma
Messaging & realtime

a message sent is a message delivered

RabbitMQRedisWebSocketsServer-Sent EventsNode Streams
Computer vision & IoT

cameras that read truck plates

NVIDIA DeepStreamOCR/ALPRCâmerasControladoras
Databases

where the truth lives (with backups)

PostgreSQLMySQLSQL ServerMongoDB
Infra & DevOps

drama-free deploys, peaceful Fridays

DockerAWS LambdaServerless FrameworkMinIOKeycloakCI/CD

All of it held together with Clean Architecture, DDD, SOLID and Design Patterns — because 3am heroics look great in movies, not in production.

Writing code since 2009. Serving enterprise clients since 2021, and in 2022 I founded Nextech Digital Solutions, where I lead architecture and development for mission-critical operations. Based in Três Rios, Brazil, working worldwide — timezones are a detail, production never sleeps anyway.

Things I learned keeping production alive

Technical articles straight from the trenches. No todo-list tutorials.

All articles

Let's build something that doesn't go down?

Tell me about your project, your team, or your production problem. I reply within 24h — usually much faster, because unread notifications bother me.

Prefer a direct channel?