Alex Teichman

Founder & CEO, Happenstance — Stanford CS PhD

alex

Palo Alto, California

Joined March 2024

Network

14.6K connections

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Summary

Alex is a research-trained perception and 3D-sensing expert: his Stanford PhD (advised by Sebastian Thrun) produced multiple influential papers on tracking, semi-supervised learning, and depth-sensor calibration, and his Google Scholar / Stanford pages reflect a steady research output in 3D perception for autonomous systems. stanford+1

He is an operator-founder who turns perception research into products: Teichman co-founded and led Lighthouse AI (an AI/3D home camera product), and later founded Happenstance, running product direction, fundraising and go-to-market efforts. alexteichman+2

Has cross-disciplinary applied-ML experience inside large tech and startups: public reporting and profile aggregators list roles at Apple (advanced deep‑learning work) and a leadership role at Sabbatical, demonstrating experience shipping ML systems in both research and product contexts. businessinsider+2

Maintains public technical output and community signal: an active GitHub with repositories, a personal technical blog with sensor/engineering posts, and a Letterboxd profile showing engaged film interests — indicating both hands‑on engineering practice and broader cultural/creative interests. github+2

Work

Education

Projects

Writing

Unsupervised Intrinsic Calibration of Depth Sensors via SLAM

January 1, 2013

Methods for calibrating depth sensors in dynamic scenes using SLAM techniques, improving accuracy of 3D sensing pipelines without manual calibration.

cs.stanford.edu

Tracking-based semi-supervised learning

January 1, 2012

Work on using tracking information to enable semi-supervised learning, showing that tracking can reduce the need for large labeled datasets by propagating labels across tracked object instances.

cs.stanford.edu

Towards 3D object recognition via classification of arbitrary object tracks

January 1, 2011

Paper describing methods for classifying objects by leveraging tracked 3D sensor data (object tracks) to improve recognition accuracy in dynamic scenes; relates to perception for autonomous platforms.

cs.stanford.edu

Hobbies

Film enthusiast — maintains a Letterboxd profile with reviews and lists. letterboxd

Technical and systems blog author — maintains a personal blog with posts about sensors, tooling, and engineering. alexteichman

Notes

KGKyle Getsivsaid they would want

ATAlex Teichman

on their founding team for a complex product in robotics, bio, or software.

Mar 22, 2026

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successfully start and grow multiple tech-based companies.

Mar 18, 2026

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ATAlex Teichman

has made a significant positive impact as a founder or CEO in the tech or AI space.

Mar 17, 2026

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is one of the most engaging and insightful speakers on AI topics they've seen.

Mar 13, 2026

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on their founding or exec team.

Mar 12, 2026

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on their founding or exec team.

Mar 12, 2026

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make a real impact on how teams build or use AI development tools.

Mar 10, 2026

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would be at the top of their list.

Mar 4, 2026

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on their team for a high-stakes machine learning project.

Mar 4, 2026

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actively invest in improving their company's website and digital presence.

Feb 24, 2026

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actively invest in improving their company's website and digital presence.

Feb 23, 2026

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ATAlex Teichman

is one of the best AI engineers they've worked with.

Feb 22, 2026

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would be high on their list of startup founders to back.

Feb 20, 2026

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has built something in tech as a founder that stands out to them.

Feb 20, 2026

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has made a big impact as a founder or executive at their startup.

Feb 18, 2026

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Feb 15, 2026

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is one of the most impressive founders they know who has successfully closed a pre-seed round.

Feb 12, 2026

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is one of the most impressive early-stage founders they've worked with in terms of vision and execution.

Feb 11, 2026

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champion outstanding user experiences in digital products at their company.

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would be at the top of their list.

Feb 6, 2026

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Feb 2, 2026

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make a big impact during their time as a software engineer at a FAANG company or high-growth startup.

Jan 29, 2026

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build or lead a startup that's truly advancing Human AI interaction.

Jan 28, 2026

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build and lead a VC-backed company in a way that really stood out to them.

Jan 28, 2026

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is one of the most impressive founders or very senior leaders they've worked with at a VC-backed company.

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build and lead a VC-backed company in a way that really stood out to them.

Jan 27, 2026

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has built and led an early-stage team in a way that made a real difference for their startup.

Jan 26, 2026

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is one of the top startup founders they've worked alongside in the US tech scene.

Jan 26, 2026

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is one of the most impressive founders they've seen building in the perception or computer vision space.

Jan 26, 2026

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stands out to them as a founder whose story was especially driven by happenstance or an opportunistic decision.

Jan 22, 2026

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's company emerge as a result of a surprising pivot or an unexpected opportunity.

Jan 22, 2026

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's company emerge as a result of a surprising pivot or an unexpected opportunity.

Jan 21, 2026

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has been leading a new business or venture where having a great website is a big priority.

Jan 19, 2026

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provide both capital and meaningful mentorship to founders of new companies.

Jan 12, 2026

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is one of the most relentless and enthusiastic networkers they've worked with in the early-stage startup world, in a way that feels authentic, not just 'networking'.

Jan 9, 2026

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has made a strong positive impact as a tech founder.

Jan 7, 2026

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ATAlex Teichman

is someone they'd want running multiple ML teams at a fast-paced startup.

Jan 6, 2026

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is someone they'd want running multiple ML teams at a fast-paced startup.

Jan 6, 2026

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drive impactful Computer Vision projects while leading sizeable engineering groups.

Jan 6, 2026

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create products with agentic or advanced AI features that genuinely impressed them.

Jan 5, 2026

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is one of the most impressive tech founders they've worked with.

Jan 5, 2026

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excel at building and growing a tech startup while successfully raising outside funding.

Dec 17, 2025

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has shown unusual resilience and introspection moving from their founder journey to making an impact at their current company.

Dec 16, 2025

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ATAlex Teichman

lead a robotics company from concept through shipping real hardware products.

Dec 16, 2025

PSPranay Suranasaid

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is one of the most impressive early-stage founders they've seen recently, especially after raising funding.

Dec 15, 2025

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build something from the ground up as a founder that truly stood out to them.

Dec 14, 2025

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build something from the ground up as a founder that truly stood out to them.

Dec 14, 2025

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is one of the most impressive early-stage founders they've seen recently, especially after raising funding.

Dec 12, 2025

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is one of the most impressive founders they've seen transition from a high-impact role at a well-known tech company to leading a crypto company.

Dec 3, 2025

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make noticeable progress learning or applying AI in their work as a founder.

Nov 24, 2025

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played a key founding or leadership role in a new AI startup in the last two years.

Nov 20, 2025

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is one of the most impressive engineer-turned-business leaders they know.

Nov 18, 2025

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successfully transition from engineering into building and leading a thriving business.

Nov 18, 2025

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is one of the most impressive startup alumni they know.

Nov 18, 2025

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is someone they'd recommend joining if you were looking to work on something new and impactful.

Nov 17, 2025

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to lead a high-stakes business through major challenges.

Nov 14, 2025

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has made a significant positive impact as a founder in the tech industry.

Nov 12, 2025

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has made a significant positive impact as a founder in the tech industry.

Nov 12, 2025

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successfully build or scale a tech company.

Nov 12, 2025

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would be a top pick.

Nov 11, 2025

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contribute impressive work to graduate-level AI research projects.

Nov 10, 2025

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would be a top pick.

Nov 10, 2025

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is one of the standout founders from Y Combinator they've worked with or observed.

Nov 7, 2025

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to lead another early-stage YC startup to success.

Nov 7, 2025

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Nov 6, 2025

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to lead another early-stage YC startup to success.

Nov 6, 2025

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is someone they look to for groundbreaking work coming out of Stanford's best research labs.

Nov 5, 2025

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based on their expertise and entrepreneurial drive.

Nov 3, 2025

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accomplish standout work during their time at Apple.

Nov 1, 2025

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accomplish standout work during their time at Apple.

Nov 1, 2025

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made a positive impact during their time at Lighthouse.

Oct 30, 2025

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was someone people at Lighthouse looked to for leadership or mentorship.

Oct 29, 2025

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ATAlex Teichman

's network play a major part in helping startups connect with the right people or resources.

Oct 28, 2025

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's network play a major part in helping startups connect with the right people or resources.

Oct 23, 2025

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's network play a major part in helping startups connect with the right people or resources.

Oct 23, 2025

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leverage their founder or operator experience to help startups grow or get funded.

Oct 22, 2025

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is among the most impactful a16z scouts they've worked with or know.

Oct 22, 2025

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is among the most impactful a16z scouts they've worked with or know.

Oct 21, 2025

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one of the strongest leaders they've worked with at a large tech company.

Oct 16, 2025

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made a noticeable impact in the field of self-driving cars.

Oct 16, 2025

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ATAlex Teichman

is one of the most impressive researchers they know from a top Stanford lab.

Oct 14, 2025

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is someone whose leadership style inspires strong loyalty and performance from their teams.

Oct 12, 2025

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is someone they'd trust to lead R&D efforts at a stealth startup.

Oct 10, 2025

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ATAlex Teichman

make an outsized positive impact as a leader on major projects.

Oct 10, 2025

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ATAlex Teichman

make an outsized positive impact as a leader on major projects.

Oct 7, 2025

DTDAVID TEICHMANsaid

ATAlex Teichman

is one of the most impressive researchers they know from a top Stanford lab.

Oct 7, 2025

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is someone they'd trust to lead R&D efforts at a stealth startup.

Oct 6, 2025

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drive meaningful innovation in autonomous vehicle technology.

Oct 3, 2025

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would be among their top choices to back as a CEO.

Sep 10, 2025

YLYin Lusaid

ATAlex Teichman

is one of the most impressive startup founders or early team members they've worked with.

Sep 9, 2025

NANikhil Abrahamsaid

ATAlex Teichman

is one of the most impressive startup founders or early team members they've worked with.

Sep 9, 2025

ISIshan Shahsaid

ATAlex Teichman

is one of the most impressive startup founders or early team members they've worked with.

Sep 9, 2025

DGDhruv Ghulatisaid

ATAlex Teichman

is one of the most impressive startup founders or early team members they've worked with.

Sep 8, 2025

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ATAlex Teichman

's work in wellness tech make a meaningful positive impact on users or the field.

Aug 27, 2025

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stands out to them as an early stage founder doing especially interesting work without outside funding.

Aug 25, 2025

ISIshan Shahsaid

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is among the most impressive founders they've worked with.

Aug 10, 2025

CUChristian Ulstrupsaid

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has built something as a founder that really stands out to them.

Aug 8, 2025

DEDrew Edwardssaid they've seen

ATAlex Teichman

significantly shape the direction or culture at Happenstance as a founder.

Jul 24, 2025

SISteven Isleysaid

ATAlex Teichman

is one of the most impressive founders they know from the Happenstance team.

Jul 24, 2025

ISIshan Shahsaid

ATAlex Teichman

was instrumental in the early days of Happenstance.

Jul 23, 2025

RHRichard Huangsaid

ATAlex Teichman

played a pivotal role in the founding and early growth of Happenstance.

Jul 23, 2025

YLYin Lusaid

ATAlex Teichman

played a significant role in founding Happenstance.

Jul 18, 2025

XMXiaoyu Miaosaid

ATAlex Teichman

is making a significant impact with their current project after co-founding Lighthouse.

Jul 15, 2025

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ATAlex Teichman

successfully found a company.

Jul 14, 2025

CMCameron Marlowsaid that if someone at happenstance.ai was looking to drive innovation with new data technologies,

ATAlex Teichman

would be the decision-maker they'd turn to.

Jul 10, 2025

ISIshan Shahsaid

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is one of the most impressive founder CEOs they've worked with.

Jul 4, 2025

AAAlan "Butch" Andreinisaid they've seen

ATAlex Teichman

play a standout leadership role in scaling or building deeptech or AI startups.

Jul 3, 2025

ISIshan Shahsaid

ATAlex Teichman

has been especially helpful as an advisor or mentor to early-stage tech founders they know.

Jul 2, 2025

DGDhruv Ghulatisaid

ATAlex Teichman

's AI engineering is among the best they've seen.

Jun 24, 2025

ISIshan Shahsaid if they wanted advice from someone who's both a standout senior developer and a successful startup founder,

ATAlex Teichman

would be one of their first calls.

Jun 13, 2025

Alex Teichman

Network

Summary

Work

Founder & CEOHappenstance2023–Present

Chief Sabbatical OfficerSabbatical2022–2023

Deep nets & "the crazy stuff"Apple2018–2022

Co-founder & CEOLighthouse AI, Inc.2014–2018

PhD Candidate / Researcher (Computer Science)Stanford University2007–2014

PhD Candidate ResearcherWillow Garage2008–2009

Education

Doctor of Philosophy (PhD), Computer ScienceStanford University2007–2014

B.S.E., Electrical EngineeringUniversity of Pennsylvania2003–2007

Eastern Regional High School1999–2003

Projects

Happenstance2023–Present

Lighthouse AI2014–2018

Writing

Unsupervised Intrinsic Calibration of Depth Sensors via SLAM

Tracking-based semi-supervised learning

Towards 3D object recognition via classification of arbitrary object tracks

Hobbies

Film enthusiast — maintains a Letterboxd profile with reviews and lists. letterboxd

Technical and systems blog author — maintains a personal blog with posts about sensors, tooling, and engineering. alexteichman

Notes