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About
Lucas da Costa is founder and CEO of Briefer. He previously worked as a senior software engineer at Elastic and led engineering teams at an early-stage London startup. He has maintained open-source testing libraries including Chai.js and Sinon.js, authored "Testing JavaScript Applications" published by Manning, and spoken internationally on software engineering topics.
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
Frequently asked questions
- Who is Lucas da Costa?
- Lucas da Costa is founder and CEO of Briefer. He previously worked as a senior software engineer at Elastic and led engineering teams at an early-stage London startup. He has maintained open-source testing libraries including Chai.js and Sinon.js, authored "Testing JavaScript Applications" published by Manning, and spoken internationally on software engineering topics.
- Where does Lucas da Costa work?
- Lucas da Costa is Founder of Briefer.
- What companies did Lucas da Costa found?
- Lucas da Costa founded Briefer.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Elastic mafia18
Also came through, then founded or led a company.
Universidade Federal de Santa Catarina mafia16
Also came through, then founded or led a company.
Resend mafia4
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Briefer's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights