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renanbastos

Software engineer · Florianópolis, Brazil

I build backend systems that stay simple as they grow.

10+ years shipping software, from Go services, APIs and integrations to AI agents, and giving back to the open source tools I rely on.

Message me on LinkedIn (opens in a new tab)See my work
years building software
10+
monthly npm downloads of image-to-base64
1.4M
articles published
16
pull requests merged in open source
13

About

I'm a backend engineer. Most of my work is in Go: system architecture, cloud infrastructure, databases, observability and automation. I've built CRM integrations, real estate lead management, WhatsApp automation, AI agents, data pipelines and the internal tools that keep operations running.

I like working close to product and business teams, turning complex problems into simple, reliable software. Lately most of my time goes into AI agents and the products I'm building on my own.

Away from the keyboard: surfing, biking, hiking and video games.

Experience

From GeneXus and C# in 2014 to Go and AI agents today.

  1. Lastro (Lais.AI)

    • Senior Software EngineerDec 2024 – Present

    AI for the real estate market: lead qualification and engagement, WhatsApp automation, CRM integrations and AI agents that help agencies convert more leads.

    • Go
    • AI agents
    • WhatsApp
    • CRM

  2. Rappi

    • Senior Software EngineerDec 2023 – Jul 2024

    Built the Box Delivery and Rappi integrations as part of the integrations team, and drove internal projects on my own.

    • Go
    • Kafka
    • MongoDB

  3. TC

    • Staff Backend EngineerJul 2021 – Oct 2023
    • Senior Software EngineerSep 2020 – Jul 2021

    The engineer teams turned to for technical guidance: improved a monolith-plus-microservices architecture, helped shape technical decisions and shared knowledge across teams.

    • Go
    • gRPC
    • WebSocket
    • Helm
    • Jenkins

  4. Renan Bastos Desenvolvimento

    • Co-FounderSep 2020 – Present

    Software consulting: building software for clients and managing their cloud servers on AWS, GCP and DigitalOcean.

    • AWS
    • GCP
    • DigitalOcean

  5. Azion Technologies

    • Software EngineerSep 2018 – Sep 2020

    Edge computing: low-level networking (HTTP, DNS, SSH) and web servers for Edge Orchestrator, Intelligent DNS and Edge Caching.

    • Go
    • Python
    • NGINX
    • Django

  6. Unirede

    • Software EngineerJun 2017 – Sep 2018

    Backend and frontend development, plus modernizing legacy systems with open source tools.

  7. S4Fans – Shopping For Fans

    • Web & Mobile DeveloperJan 2017 – Jun 2017

    Features for comedy apps, built with JavaScript libraries and frameworks.

    • JavaScript

  8. HemoHeroes

    • Co-FounderApr 2016 – Sep 2020

    One of three founders of an open source community project that encourages blood donation.

    • Node.js
    • PWA

  9. Microsoft Innovation Center – PUCRS

    • Full Stack InternApr 2016 – Jan 2017

    Full stack JavaScript development.

    • Node.js
    • AngularJS
    • Ionic
    • MongoDB

  10. Qualitá Informática

    • Software Development InternMay 2014 – Jun 2015

    Web applications for financial services companies, mostly in credit cards.

    • GeneXus
    • C#
    • SQL

Education

  • Systems Analysis and DevelopmentSENAC RS2014 – 2018

Projects

Products I've founded and tools I've built.

Open source

Contributions merged into Fiber, fasthttp and gomemcache, projects the Go community runs in production.

Writing

Notes on Go, performance and engineering, published on dev.to and Medium. Articles stay in the language they were written in.

Showing 16 articles

Let's talk

Have a project, a role or a question about Go? The best way to reach me is LinkedIn.

Message me on LinkedIn (opens in a new tab)