About
Lucas Vieira is a software engineer with over a decade of experience in open-source development, including work maintaining Chai.js. He previously served as Head of Technology at Joga, where he led product development from inception, and is currently CTO of Ergomake, focused on developer infrastructure for preview environments.
Founder at BrieferYC S23
Intro paths
Lucas went through Y Combinator (Summer 2023) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran Briefer's batch and knows the company first-hand. YC profile ↗
In turn, Lucas can intro founders to Briefer's investors below.
Briefer's investors · 1
Co-founders at Briefer
Experience
- ResendProgrammingcurrent2025 — present
- Briefer (YC S23)Founder & CTO (YC S23)2022 — 2025São Paulo, Brazil
- YaloSenior Software Engineer2022 — 2023
- JogaHead Of Technology2017 — 2022Florianópolis, Santa Catarina
- DiffiaSoftware Developer2017 — 2018
- ChaordicSoftware Developer2016 — 2017Florianópolis, Santa Catarina
- ChaordicDeveloper Intern2014 — 2016
Skills & more
+10 more
ECMAScriptCReact.jsRubyRuby on RailsProgrammingComputer ScienceGoScrumFunctional ProgrammingLanguages English · Portuguese
From Lucas's professional profile.
Frequently asked questions
- Who is Lucas Vieira?
- Lucas Vieira is a software engineer with over a decade of experience in open-source development, including work maintaining Chai.js. He previously served as Head of Technology at Joga, where he led product development from inception, and is currently CTO of Ergomake, focused on developer infrastructure for preview environments.
- Where does Lucas Vieira work?
- Lucas Vieira is Founder of Briefer.
- What companies did Lucas Vieira found?
- Lucas Vieira founded Briefer.
- Where did Lucas Vieira go to school?
- Lucas Vieira studied at Y Combinator (S23); Universidade Federal de Santa Catarina.
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
+ 8,766 more
Y Combinator mafia4,716
Also came through, then founded or led a company.
+ 4,709 more
Universidade Federal de Santa Catarina mafia4
Also came through, then founded or led a company.
Yalo mafia3
Also came through, then founded or led a company.
Resend mafia2
Also came through, then founded or led a company.
Same school
Also attended Y Combinator2,000
+ 1,994 more
Also attended Universidade Federal de Santa Catarina16
+ 10 more
