Hi, I'm Lucas Wiechmann.

I'm a software engineer, developing applications for millions of users. I have always loved creating things and solving complex problems through technology.

I'm open to projects that will impact society. I believe technology should make a positive difference in people's lives, and I'm passionate about building scalable systems that can serve millions of users while creating meaningful change.

I love nature and sports. I'm a surfer at free times, and I have a YouTube channel where I share my adventures. I'm a drone lover, capturing the beauty of the world from above.

Lucas Wiechmann
hi@lwiechmann.dev

Tech Stack

Languages & Frameworks

Java (Spring Boot) Golang Kotlin Node.js Python React Bash

Cloud & Infrastructure

AWS Cloud GCP Terraform Ansible Docker Kubernetes Helm Canary

Data & Messaging

PostgreSQL MongoDB DynamoDB ElasticSearch Redis ElastiCache DAX Kafka SQS/SNS BullJS Databricks (PySpark)

Observability & Security

New Relic DataDog Prometheus Grafana CloudWatch Kong Vault k6 Custom Load Testing

AI/ML

GPT-4 Azure OpenAI RAG Architecture LLMs

Security

LGPD Compliance WorkOS OAuth

Featured Projects

Robin AI - UI Testing Platform

Python Kotlin React GCP

AI-powered UI testing platform using Maestro framework. Built automated macOS device infrastructure for 100+ devices, reducing provisioning time from 3 hours to 3 minutes through Ansible automation.

RAG Architecture MacOS Automation AI Testing

User Metadata System

Java PostgreSQL Vault Kong

High-performance system processing 70k RPS with <50ms p99 latency, serving millions of daily login attempts. Implemented LGPD compliance, 2FA, and anti-fraud features.

40k RPS <50ms Latency LGPD Compliance

Monolithic to Microservices Breakdown

Golang Java k6 Microservices

Led multiple teams refactoring microservices from Java to Golang, achieving 90k RPS throughput through goroutine-based concurrency. Implemented comprehensive load testing framework using k6.

90k RPS Goroutine Concurrency Load Testing

Let's Connect

Ready to work together?

I'm always open to discussing new opportunities and projects that can make a real impact. Let's build something amazing together!

Message me on LinkedIn