Rafael Audibert

Rafael Audibert

Senior Product Engineer

Background

Rafael has 7+ years of experience in various industries, ranging from seed- stage SaaS startups to growth-stage scaleups. Proven track record of working with Ruby on Rails, Python + Django, Typescript + React, and Elixir + Phoenix, building reliable and scalable software. He's motivated by creating new and engaging customer-centric apps loved by clients.

His passion is to build products that are both functional and aesthetically pleasing. More importantly, he wants the product to do exactly what the customers needs it to do. He has a strong background in both front-end and back-end development, and he is always looking for new challenges to tackle.

Past Experience

PostHog Product Engineer at PostHog β€” 11/2024 - Present
  • While working on the Web Analytics team ($5M+ ARR), implemented the Core Web Vitals + Performance tracking feature.
  • Started and led the Revenue Analytics team, building a new product to help companies understand their revenue metrics and improve their products.

LeadSimple Senior Software Engineer at LeadSimple β€” 03/2021 - 10/2024
  • Built the company's flagship product in Ruby on Rails + React/TS, with a fully-fledged GraphQL API, deploying tens of times every day.
  • Implemented integrations with 4 big players in the Proptech industry, including 2-way sync PubSub-based infrastructure.
  • Reduced frontend bundle size by 95% by applying modern frontend bundling practices while migrating from CRA to Vite.
  • Grew company by 2 orders of magnitude while ensuring both the database and app architecture could sustain the higher load by migrating the company infrastructure from Heroku to AWS.

TAG Livros Software Engineer at TAG Livros β€” 11/2019 - 03/2021
  • Developed a novel logistics IaC microservice architecture, integrating with tens of shipping companies, to handle 70k deliveries/month in a continental country such as Brazil, using Terraform.
  • Maintained a legacy Django monolith responsible for the subscription process, while rewriting the old billing system on Serverless.
  • Built an internal CLI to coordinate the company software deployment process, decreasing deployment time by 60%.

FEENG/UFRGS Software Engineer at FEENG/UFRGS β€” 03/2017 - 11/2019
  • Led the initial MVP for the Brazilian government in a 3-month timeframe with a team of 3 junior engineers, and got the project greenlit by it.
  • Built a fully-dockerized Ruby on Rails MVC application for the Brazilian public health system UPSs (small health clinics spread through Brazilian neighborhoods).
  • Provisioned infrastructure in AWS, using EC2, RDS, ELB, Route 53, and CloudWatch.

Education & Achievements

  • 2022: summa cum laude Bachelor's degree in Computer Science from Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
  • 2021: Exchange student at the Technische UniversitΓ€t Kaiserslautern (TUK), Germany
  • 2019/2020: 2-time finalist in the Brazilian Competitive Programming Contest (ICPC)

Languages

  • Portuguese (Native)
  • English (Professional Working Proficiency)
  • Spanish (Limited Working Proficiency)
  • German (Elementary Proficiency)

Things I've worked with before

In no specific order (help with Ctrl/Cmd + F ):
  • Programming Languages: Ruby, Python, Typescript, Javascript, Elixir, Rust
  • Frameworks: Ruby on Rails, Django, React, Phoenix, NextJS, Gatsby, Astro
  • Databases: PostgreSQL, Clickhouse, Redis, Elasticsearch
  • Cloud: AWS (Lambda, DynamoDB, S3, CloudFront, CloudWatch, RDS, ELB, Route 53), Supabase, Vercel, Netlify
  • Tools: Docker, Kubernetes, Terraform, Git, GitHub, GitLab, CI/CD, Semaphore CI, Github Actions, PostHog
  • AI Tooling: Cursor, Claude Code, Lovable