Noah Kostesku
Founding GTM Engineer @ Lemma (YC F25)
building is art. at some point, i stopped thinking about tech as just a set of tools and started seeing it as something you can shape, like writing or design.
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something you can question, improve, and get better at over time. that’s what pushed me to start building things for myself and for other people. anything that begins as “what if?” and turns into something real. it eventually led me into ai, ml, and research. right now, i’m finishing a paper on how llms explain credit risk. basically, how complex models can communicate their reasoning in ways that actually make sense to people. i’m also supervising several projects for canada’s top undergraduate ai conference at western university, helping students turn creative ideas into tangible work. what matters most to me, though, is intention. technical skills are powerful not because they're rare, but because they give you agency to shape what's around you. when used well, they create opportunities for more than just yourself. if any of this resonates, reach out. i'd love to connect.
GTM Index
- LEMMA (YC F25)JOB
- Founding GTM Eng4M
Founding GTM Engineer
Lemma (YC F25)
Forbes featured. Catching agent failures before your users churn.
- WESTERN UNIVERSITYSCHOOL
- Hon BSc, Minor, Computer S…4Y 3M
Hon BSc, Minor, Computer Science and Math
Western University
- SEQUENCE MARKETS (YC W26)JOB
- Consultant3M
Consultant
Sequence Markets (YC W26)
Building smarter faster execution for digital assets.
- THE BANKING ANALYTICS LABJOB
- Research1Y 2M
Research
The Banking Analytics Lab
Exploring the intersection of machine learning, AI, and finance to develop more intuitive approaches for assessing credit risk.
- UNIVERSITY OF TORONTOSCHOOL
- University of Toronto3M
University of Toronto
University of Toronto
- LAPIS LABS (YC F25)JOB
- Research2M
Research
Lapis Labs (YC F25)
AI agent–driven SEO shaping the future of business growth.
- WESTERN AIJOB
- VP of Projects8M
Vice President of Projects
Western AI
Supervisor of 4 projects for the 2026 Canadian Undergraduate Conference on AI. 1. TruthLens: Comprehensive Evaluation of Explainable AI in Misinformation Detection 2. B.A.I.L.I.F.F.: Bias Analysis in Interactive Legal Intelligence & Fairness Framework 3. Portfolio Optimization with Reinforcement Learning and Real-Time Financial Feeds 4. AgenticCardioGram: Machine Learning Powered ECG Analysis System for Sleep Apnea Classification
- WORLD VISIONJOB
- Project Mgr3M
Project Manager
World Vision
Led a development team for World Vision, which supports 200M vulnerable children and families globally, to deliver a custom agentic-ai pipeline for their ideation process.
- BOARDYJOB
- Fellow2M
Fellow
Boardy
Growth for an AI platform connecting professionals with smart introductions.
- WESTERN COMPUTER SCIENCE UNDERGRADUATE SOCIETYJOB
- VP of Workshops7M
Vice President of Workshops
Western Computer Science Undergraduate Society
Inspiring the next generation of cs students.
- Lead AI App Developer6M
Lead AI App Developer
Western Computer Science Undergraduate Society
Built an AI app matching study groups and optimizing meeting times at Western U.
- IGNITION HACKSJOB
- Platform Developer7M
Platform Developer
Ignition Hacks
Built hackathon platforms: website, dashboard, and Discord automation bot. Student-led :)
- FUND HOMECARE CANADAJOB
- Project Mgr8M
Project Manager
Fund Homecare Canada
Led the delivery of Fund Homecare Canada’s in-home palliative care web platform from vision to launch.
- STRATHROY DISTRICT COLLEGIATE INSTITUTESCHOOL
- High School Diploma3Y 9M
High School Diploma
Strathroy District Collegiate Institute
- Job: World Vision — Project Manager · 2025-09 – 2025-12 · 3 mo — Led a development team for World Vision, which supports 200M vulnerable children and families globally, to deliver a custom agentic-ai pipeline for their ideation process.
- Job: Lapis Labs (YC F25) — Research · 2025-11 – 2026-01 · 2 mo — AI agent–driven SEO shaping the future of business growth.
- Job: Sequence Markets (YC W26) — Consultant · 2026-03 – 2026-06 · 3 mo — Building smarter faster execution for digital assets.
- Job: The Banking Analytics Lab — Research · 2025-04 – 2026-06 · 1y 2mo — Exploring the intersection of machine learning, AI, and finance to develop more intuitive approaches for assessing credit risk.
- Job: Ignition Hacks — Platform Developer · 2025-01 – 2025-08 · 7 mo — Built hackathon platforms: website, dashboard, and Discord automation bot. Student-led :)
- Job: Fund Homecare Canada — Project Manager · 2024-10 – 2025-06 · 8 mo — Led the delivery of Fund Homecare Canada’s in-home palliative care web platform from vision to launch.
- Job: Boardy — Fellow · 2025-09 – 2025-11 · 2 mo — Growth for an AI platform connecting professionals with smart introductions.
- Job: Western Computer Science Undergraduate Society — Lead AI App Developer · 2024-10 – 2025-04 · 6 mo — Built an AI app matching study groups and optimizing meeting times at Western U.
- Job: Western AI — Vice President of Projects · 2025-05 – 2026-01 · 8 mo — Supervisor of 4 projects for the 2026 Canadian Undergraduate Conference on AI. 1. TruthLens: Comprehensive Evaluation of Explainable AI in Misinformation Detection 2. B.A.I.L.I.F.F.: Bias Analysis in Interactive Legal Intelligence & Fairness Framework 3. Portfolio Optimization with Reinforcement Learning and Real-Time Financial Feeds 4. AgenticCardioGram: Machine Learning Powered ECG Analysis System for Sleep Apnea Classification
- Job: Western Computer Science Undergraduate Society — Vice President of Workshops · 2025-04 – 2025-11 · 7 mo — Inspiring the next generation of cs students.
- Job: Lemma (YC F25) — Founding GTM Engineer (Founding GTM) · 2026-06 – present · 2 mo — Forbes featured. Catching agent failures before your users churn.
- School: Western University — Hon BSc, Minor, Computer Science and Math · 2023-09 – 2027
- School: University of Toronto · 2026-03 – 2026-06
- School: Strathroy District Collegiate Institute — High School Diploma · 2018-09 – 2022-06
Skills
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