Seasoned engineering and product leaders backing early stage technology founders

We view the power of a deep, engaged community of like-minded builders as our key differentiator, and work relentlessly to keep strengthening that unique fabric.

Everyone at Irregular Expressions is, first and foremost, an entrepreneur and a doer. We’ve slowly curated a group of technology executives and leaders, whose day job is to hire, grow and manage some of the most prominent engineering and product teams in the industry.

We’re moved by a shared drive to back outstanding founders, bringing cumulative decades of hard-earned engineering and product lessons to bear, both in reaching investment decisions, swiftly and with high conviction, and in working alongside founders to scale their companies, business, teams, and processes.

Vlad Rachev is a Principal at Irregular Expressions, joining from MongoDB where he was an engineer working on developer tooling. Vlad's broad curiosity and passion for developer infrastructure lead him to IrregEx, where he leverages his experience as both builder and user to find and partner with the best developer picks-and-shovels companies.

Irregular Expressions was founded by Jean Sini, former CTO at Cadre, Fountain, One Kings Lane, Mint, and General Partner at venture firm Partech. Jean launched IrregEx based on repeated and consistent interest from founders in enrolling the help of seasoned nerds early in their company’s journey.

team members

Achin Batra
Flatiron Health
Adam Bildersee
Moon Creative Lab
Adam Perelman
OpenAI
Alan Warren
The Commons Project
Alex Ingram
Zest
Alexandre Winter
Norbert Health
Alexis Lê-Quôc
Datadog
Ali Heron
Petal
Andrew Bunner
Google
Andrew Hogue
Google
Andrey Akselrod
People.ai
Anthony Johnson
Swiftline
Antoine Boulanger
Okay
Ariana Poursartip
Petal
Arun Nagarajan
BigSpring
Ashley Miller
Datadog
Ben Birnbaum
Flatiron Health
Ben Roberts
Brooklyn Data Co.
Benjamin Fabre
DataDome
Brian Murphy
SeatGeek
Bryan Mahoney
Chord
Camille Fournier
JPMorgan Chase
Carlos Aguilar
Glean
Carter Perez
People.ai
Revenue Chemists
Chris Crane
Nike
Cyril Deremble
Point72
Dan Preston
Lemonade
Danny Morrow
Extend
David Andre
Cerebellum Capital
Doug Bemis
Redesign Health
Elijah Meerson
Orchard
Fazal Yameen
Stash
Geoff Calkins
Flatiron Health
Gil Shklarski
Flatiron Health
Greg Ratner
Salesforce
Ilan Man
Brooklyn Data Co.
Ilia Papas
Blue Apron
Irina Krechmer
Blue Apron
James Boehmer
Etsy
James Psota
Panjiva
James Turnbull
Sotheby's
Jay Signorello
Zillow
Joel Witten
Rec Room
Jonah Cohen
MongoDB
Julie Hubschman
FIS
Julie Sommerville
ChartHop
Junaid Ahmed
Datadog
Jurica Cerovec
Microblink
Katelyn Stein
Stripe
Kathleen Yanolatos
Exos
Kellan Elliott-McCrea
Frame.io
Kurt Schrader
Shortcut
Laura Florescu
MosaicML
Laurent Paris
Astronomer
Leonid Igolnik
Clari
Liz Maida
Uplevel Security
Mackenzie Kosut
Microsoft
Marc Brown
Ro
Marc Meyer
Berkeley Skydeck
Marcus Frödin
Spotify
Maria Belousova
Indigo
Matt Driscoll
Google
Matthew Drooker
Turner
Michael Coyne
Publicist
Michele Catasta
Google
Mike Boufford
Greenhouse
Mike Reust
Betterment
Mircea Pasoi
Clubhouse
Nate Wiger
Intuit
Nick Rockwell
Fastly
Oliver Plattner
Skillsoft
Ori Schnaps
Facebook
Pablo Mendes
Kailua Labs
Peter Bell
CTO Connection
Rachana Kumar
Etsy
Renaud Visage
Eventbrite
Robyn Peterson
CNN
Romain David
Uber
Sam Moore
Betterment
Sameer Jain
Nomura
Samuel Rozenberg
Artsy
Scott Breitenother
Brooklyn Data Co.
Serkan Kutan
Amwell
Sheba Rasson
Google
Steven Kuyan
Culina Health
Supreet Oberoi
BriteCore
Swaroop Butala
Box
Sylvia Isler
Google
Taylor Leese
LinkedIn
Tejpaul Bhatia
Axiom Space
Theresa Vu
Praxis Labs
Varun Srinivasan
Farcaster
Yony Feng
Peloton
Zach Abrams
Bridge
Zachary Ozer
Column Tax

Our team is comprised of heads of engineering at

AWS
Affinity
Altana
Amwell
Artsy
Astronomer
Axiom Space
Barclays
Berkeley Skydeck
Betterment
BigSpring
Blue Apron
Box
Brex
Bridge
BriteCore
Brooklyn Data Co.
CNN
CTO Connection
Cerebellum Capital
ChartHop
Chord
Clari
Clubhouse
Codecademy
Coinbase
Column Tax
Culina Health
DataDome
Datadog
Datakin
Dataminr
Demandbase
Dropbox
Etsy
Eventbrite
Exos
Extend
FIS
Facebook
Farcaster
Fastly
Flatiron Health
Frame.io
Glean
Google
Greenhouse
Indigo
Intuit
JPMorgan Chase
Kailua Labs
Lemonade
LinkedIn
Lokavant
Metromile
Microblink
Microsoft
MongoDB
Moon Creative Lab
MosaicML
NBA
NYU Future Labs
Nike
Nomura
Norbert Health
Okay
OpenAI
Optoro
Orchard
Oscar
Panjiva
Pave
Peloton
People.ai
Petal
Pheno
Point72
Praxis Labs
Publicist
Rec Room
Redesign Health
Revenue Chemists
Ro
Salesforce
SeatGeek
Shortcut
Siden
Skillsoft
Sotheby's
Splunk
Spotify
Stash
Stripe
Swiftline
The Commons Project
Troops
Turner
Two sigma
Uber
University of Washington