About
Heng Hong Lee is the founder of Lightsprint (YC P26). He previously held engineering leadership roles at HQ.xyz and Xweave, founded a custodial Lightning wallet called Tempest, spent four years in engineering at FAZZ Financial Group, and worked as a senior software engineer at Facebook for five years. He holds a BA in Electrical Engineering from the National University of Singapore.
henghonglee @henghonglee
This is the direction we believe in at Lightsprint: agents should sit inside a shared shipping loop, not another chat box. Product intent, code-aware planning, parallel execution, previews and engineering review belong in one surface. https://t.co/tvEWHQyfsa
Jul 11, 2026 Β· β₯ 2
henghonglee @henghonglee
This is the benchmark shift that matters: test agents on your own work. Public scores miss task mix, cost, latency, reviewer corrections and whether the output survives merge. Internal evals are becoming company infrastructure. https://t.co/ooaK5p8zcg
Jul 11, 2026 Β· β₯ 1
henghonglee @henghonglee
Exactly. Skills matter when they package judgment, not just prompts. Models change quickly; good ways of scoping, reviewing, debugging and verifying change much more slowly. Skills are how those practices become portable. https://t.co/qkZd3UEsKF
Jul 10, 2026
Founder at LightsprintYC X26
Intro paths
Heng went through Y Combinator (Spring 2026) β any YC alum in your network can reach them through the YC community.
Their group partner at YC was Garry Tan, President & CEO of Y Combinator β the partner who ran Lightsprint's batch and knows the company first-hand. YC profile β
In turn, Heng can intro founders to Lightsprint's investors below.
Lightsprint's investors Β· 2
Co-founders at Lightsprint
Experience
- Lightsprint (YC P26)Co-Foundercurrent2026 β presentSan Francisco, CA
- Gnosis BusinessPrincipal Software Engineer2025 β 2026
- Xweave.ioHead of Engineering2024 β 2025Singapore
- FAZZ Financial GroupDirector, Engineering2021 β 2023Singapore
- FAZZ Financial GroupEngineering Manager2019 β 2021Singapore
- FacebookSenior Software Engineer2016 β 2018Menlo Park, California
- FacebookSoftware Engineer2013 β 2016Menlo Park, California
- Pebble TechSoftware Engineer, iOS2013Palo Alto, California
- AppleSoftware Engineering Intern2011Singapore
Education
- National University of SingaporeBachelor's degree, Electrical Engineering2007 β 2011
Skills & more
+7 more
Mac OS XMac OSLocationsUnity3DRuby on RailsGithubGitFrom Heng's professional profile.
Founder mafias
Y Combinator mafia8,668
Also came through, then founded or led a company.
+ 8,661 more
National University of Singapore mafia63
Also came through, then founded or led a company.
+ 56 more
Same school
Also attended National University of Singapore307
+ 301 more
Shared employers
Also worked at Lightsprint (YC P26)2
Also worked at Xweave.io1
Also worked at FAZZ Financial Group4
Also worked at Facebook482
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+ 476 more