Algorithms overlaying a Stitch Fix photo shoot

Algorithms Team

Art and Science

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From the algorithms blog

Our Pulse

A row of data analysts working on laptops
Data artistry
We love what we do: Quantify art and fashion to build recommendation algorithms to make our clients look their best.
Technological greenfield
We’ve built just a fraction of the tools and solutions that we need. The combination of data and fashion puts us in a unique place where we can forge the next generation of tools and methods.
Focus on what matters
Our data is information-rich and resides in robust and easy to access platforms. This allows us to focus on the models, methods, and code to achieve our objectives.

Our Teams

A casual discussion between Stitch Fix employees
Client Algorithms
Understand our clients, predict their demands, and optimize operations.
Styling Algorithms
Meet the recommendation engineers: Where the art and fashion is quantified and shipped.
Merch Algorithms
Mastering the science of clothing, inventory, and complex logistics.
Data Platform
Build robust and powerful technologies to store, access, and compute data.

Academic Collaborations

Social Algorithms Labs @ Stanford (SOAL)

The Algorithms team works closely with SOAL where a group of interdisciplinary researchers focus on social and economic science and computational science and algorithms.

Stanford Industry Affiliates

We are a member of the Industrial Affiliates Program of the Statistics Department at Stanford, helping us stay abreast of the latest statistical techniques and build relationships with statistical researchers.

algorithms Careers

algorithms Team

Eric Colson

Eric Colson
Chief Algorithms Officer

Eric loves the austere beauty of data and analytics. He could easily go too far if practicality didn’t rein him in now and again. Hails from the SF Bay Area.

Stella Yang

Stella Yang
Client Algorithms

Stella likes working with data and apply economic theory to solve real business problems, with the help of statistical and machine learning. She also has a passion of learning new tools and math to understand the fundamentals of a problem. In her spare time, she enjoys traveling, cooking and yoga.

Jesse Clark

Jesse Clark
Client Algorithms

Jesse loves learning, golden retrievers and the science of everyday life. Originally from Australia, he now calls the bay area home. In his spare time he enjoys cooking, travelling and Australian rules football.

Alex Smolyanskaya

Alex Smolyanskaya
Client Algorithms

Alex likes getting to a point of empathy with data, preferably while listening to dance music. When not computing, she can be found birding, skiing, or hanging with her parrot. Born in Ukraine, raised in Brooklyn.

Andy Almand-Hunter

Andy Almand-Hunter
Merch Algorithms

Andy likes espresso, rock climbing, and computer code. He loves the unreasonable effectiveness of mathematics in everything from physics to fashion. Hails from Maine, but has slowly been making his way west, and is happy to finally call the Pacific coast home.

Russell Avdek

Russell Avdek
Client Algorithms

Russell has an insatiable curiosity for all things math, data, programming, and problem solving. In his free time you can find him reading, dancing, riding his bike, or eating too many tacos.

Erin Boyle

Erin Boyle
Merch Algorithms

Erin loves solving puzzles with data. She's thrilled to finally land on the West Coast after growing up in the DC area and doing her graduate degree in Wisconsin. Outside of the office she adores mountains, city biking, music, and everything else San Francisco has to offer.

Chris Moody

Chris Moody
Styling Algorithms

Chris loves high performance computing, high dimensions & high fashion. He loves learning the beautiful symmetries between physics, data, and analytics. Hails from Spain & South Carolina.

Hilary Parker

Hilary Parker
Client Algorithms

Hilary is an R and statistics enthusiast determined to bring rigor to analysis wherever she goes. She comes from Etsy, and before that the world of Biostatistics. At Stitch Fix she works on teasing apart correlation from causation, with a strong dose of reproducibility.

Jacob Perkins

Jacob Perkins
Data Platform

Jacob enjoys solving weird problems, especially when they involve graphs, infrastructure, or data modeling. Preferably some combination of the three. When not writing code he's working on a sculpture or practicing aerial acrobatics.

Alan Eng

Alan Eng
Client Algorithms

Alan enjoys puns, data, unsalted almonds, R, and copious amounts of unsweetened black tea in a wine glass (preferably filled with only the last item). Also knows a French word or two. Hails from San Francisco.

Matt Wittmann

Matt Wittmann
Merch Algorithms

Matt gets excited about using math and computers to better understand and predict the behavior of complex systems. A physicist by training, he enjoys random walks, simplifying assumptions, and minimizing entropy. Outside of the office, Matt can often be found outdoors cycling, hiking, snowboarding, or otherwise fullfilling his obligations as a native Coloradan.

Mike Tahani

Mike Tahani
Styling Algorithms

Mike's interests lay at the intersection of art, outer space, maps, journalism, and women's fashion. Professionally, he transforms complex information into pretty things. In his free time, he enjoys exploring Oakland's bars and eating Taco Bell in bed.

Steven Troxler

Steven Troxler
Data Platform

Steven likes python, scala, and board games. In his free time he enjoys running and playing the blues. Hails from Phoenix.

Brad Klingenberg

Brad Klingenberg
Styling Algorithms

Brad likes statistics, messy data and all things Python. Originally from Colorado, he now lives in the SF Bay area and enjoys the local coffee and hiking.

Sky Yin

Sky Yin
Merch Algorithms

Sky has been curious and working on many different stuffs - physics, finance, music. Ultimately he discovered the beauty inside these topics and it's all about data. Sky is a Canadian born in Shanghai and finally settled in bay area. In his spare time, he enjoys anime, music and playing with his daughter.

Jasmine Nettiksimmons

Jasmine Nettiksimmons
Styling Algorithms

Jasmine enjoys uncovering hidden relationships in life and nature using statistics and quantifying feelings on a scale of 1-10. She also loves iced tea, British mystery shows, Swedish mystery novels, knitting, river swimming, and spendy cheese.

Patrick Foley

Patrick Foley
Styling Algorithms

Patrick enjoys math and maps, and he loves Arizona (U of A) college basketball. He is language agnostic, and prefers trying the simplest things first. AZ -> CA -> PA -> CA.

Kurt Bollacker

Kurt Bollacker
Data Platform

Kurt has been a scientist, a software engineer, a digital archivist, and random problem solver. He also engages in cake baking, circus aerial, and biking around the city. He enjoys problems that have no obvious solution. You can always bribe him with excellent food, especially desserts.

Patric Glynn

Patric Glynn
Client Algorithms

Patric enjoys using data to bring a greater understanding to business problems. Hailing from Ohio, he's been enjoying having variety to the terrain around him. When not in front of a computer you'll find him hiking or playing the banjo with like-minded bluegrass enthusiasts.

Daragh Sibley

Daragh Sibley
Merch Algorithms

Daragh enjoys home brewing, rock climbing, and R. He tries to avoid all three in the same evening. You can typically find him over caffeinated and over excited about his latest analytic project. Hails from the Washington, DC area.

Allison Hata

Allison Hata
Client Algorithms

Allison comes to Stitch Fix with a statistics and econometric background. She loves using data to solve complex problems and reveal meaningful trends. She also loves all kinds of desserts and snacks. She's currently working on predicting the future demand of the Stitch Fix business. Born and raised in the Bay Area.

Cian Menzel-Jones

Cian Menzel-Jones
Merch Algorithms

Cian loves developing original ideas based on insights from data whether it's in geophysics, molecular spectroscopy or women's fashion. Outside of the office he'll probably be playing a sport. Hails from Vancouver, BC.

Cassandra Jacobs

Cassandra Jacobs
Styling Algorithms

Cassandra is interested in natural language understanding and other structured statistical problems. She loves adventuring and lives for problem solving while backpacking the wilderness and building models at work. Originally from Texas, she arrived in California by way of Illinois and as a result has lots of opinions about Mexican food.

Ian Horn

Ian Horn
Styling Algorithms

Ian is eternally curious how everything works, so he loves data. Professionally, he thinks static typing and functional languages are pretty cool. In his native habitat of the Bay Area, you can frequently find him cooking, reading, or swimming.

Jeff Magnusson

Jeff Magnusson
Data Platform

Jeff likes Python, coffee, and combining the two to build data infrastructure that’s incredibly easy and fun to use. Hails from Texas.

Joerg Fritz

Joerg Fritz
Client Algorithms

Joerg hails from Germany, and likes to point out that at least half of all German luxury car brands you can name come from his home town. When he's not arguing about expensive cars, he is probably thinking about how to use math to find patterns in real world data or drinking hot chocolate, sometimes even at the same time.

Tara Lydiard-Martin

Tara Lydiard-Martin
Client Algorithms

Tara loves using data and visualizations to make complex systems feel intuitive. In her free time she enjoys ultimate frisbee, dancing, and the Brazilian martial art of capoeira. Hails from Seattle.

Usman Raza

Usman Raza
Client Algorithms

Usman enjoys trying to distill complex interactions into their most basic parts using machine learning. In his free time he can be found reading, climbing, playing at the FLGS, and exploring San Francisco through it's restaurants and coffee shops. Most recently hails from Canada.

Greg Novak

Greg Novak
Merch Algorithms

Greg is a fan of late binding, dynamic typing, black holes, bourbon, and using data to understand the world. When he's not helping women find clothing they'll love, Greg is likely to be cycling, backpacking, or playing ice hockey.

Zhou Yu

Zhou Yu
Merch Algorithms

Grew up in southwest of China, Zhou loves Asian food, especially spicy dishes. He's always trying to apply statistics and machine learning to solving impactful business problem. In his spare time, he enjoys reading and playing basketball and pool.

Katherine Livins

Katherine Livins
Styling Algorithms

Katherine likes thinking about how people think, and especially likes data that help her think about how people think. She is originally from Toronto, but hates the cold (despite spending most of her free time underwater in the Northern California ocean). She generally loves traveling, cupcakes, and kittens - but who doesn’t?

Tim Sweetser

Tim Sweetser
Styling Algorithms

Tim loves developing statistical models, sometimes for inference but sometimes just for prediction. His non­mathematical interests include baking bread, mountain biking, attending the San Francisco Ballet, and volunteering as a Big Brother. A native of New England, he still cheers for the Red Sox.

Brian Coffey

Brian Coffey
Data Platform

Brian likes trying to describe the world with math, usually in the hopes of making it more efficient and beautiful. Hails from Canada, background in liberal arts, mechanical engineering, operations research and architecture. In his free time he can be found outside, in a book or at a piano.

Ceslee Montgomery

Ceslee Montgomery
Client Algorithms

Ceslee loves working at the intersection of people & data. She's got a B.A. in Sociology from Stanford and is working on conversion & better data at Stitch Fix.

Kevin Zielnicki

Kevin Zielnicki
Styling Algorithms

Coming mostly recently from data science consulting, Kevin is working on algorithms to help people understand and respond to written feedback. After a past life as a quantum mechanic, he is happy to work with data that can be observed without changing its value.

Kenna Nelson

Kenna Nelson
Client Algorithms

Kenna loves using data to tell stories. Outside of the office, she especially enjoys cooking and exploring new places. Hails from Minnesota.

Dave Spiegel

Dave Spiegel
Merch Algorithms

Dave loves using tools of statistical inference to understand the world better. Also likes astronomy, basketball, dogs, swinging from rings, and wants to wean himself from football. Hails from Boston.

Akshay Wadia

Akshay Wadia
Data Platform

Akshay is from India, and thus, consumes vast quantities of Test cricket. He is fascinated by how algorithmic thinking turns complex problems into elegant code. He enjoys building data platforms, and pondering programming semantics. When not working with data, he is usually reading Wodehouse.

Kevin Wecht

Kevin Wecht
Merch Algorithms

Kevin enjoys using data to test common assumptions. He also likes breakfast cereal, large fluffy dogs, and playing/watching sports of all kinds. Hails from the San Francisco Bay Area.

Sonya Berg

Sonya Berg
Client Algorithms

Sonya is passionate about solving business problems using logic, math, and data. She generally prefers being outside, traveling by foot or by bike. Sonya ruins her active nature with her love of cooking and enjoying very rich foods, e.g. cakes. Native Californian.

Charlotte Daniels

Charlotte Daniels
Client Algorithms

Charlotte enjoys applying her insatiable curiosity to unravel the mysteries hidden within large sets of data. She has an unhealthy obsession with dancing and anything green. Born and raised in the San Francisco Bay Area.

Patrick Sun

Patrick Sun
Data Platform

Patrick Sun is a frontend engineer on the Data Platform team and is working on building the frontend infrastructure, UIs and data visualizations for internal data science tools at Stitch Fix.

Tatsiana Maskalevich

Tatsiana Maskalevich
Styling Algorithms

Tatsiana enjoys theory of probability, coffee, farmers markets, tomatoes, all things pickled, and soup. When she not telling stories using data, Tatsiana enjoys to be outside hiking, cycling, camping, and visiting new places around the world. Originally from Belarus, she is happy to call San Francisco her home.

Jing Jin

Jing Jin
Styling Algorithms

A psychologist by training, Jing has insatiable curiosity for all things related to human nature: personality, intelligence, brain, etc. She is a tech evangelist using data to uncover the secrets of human behaviors. You will always find her body or soul on an adventure somewhere: she enjoys reading, hiking, and traveling. She is from China originally.

Jas Khela

Jas Khela
Client Algorithms

Jas believes data can be used to solve any problem. He also believes the way to a woman’s heart is through her wardrobe. Jas enjoys traveling, binge watching TV series on Netflix, and spy movies. Hails from Fresno.

Qi Gao

Qi Gao
Styling Algorithms

Qi likes uncovering insights from data using Statistics. Some of her favorites are R, Panda and Yellowstone NP. She also enjoys cooking, drawing and playing drums.

Deep Ganguli

Deep Ganguli
Styling Algorithms

Deep enjoys high dimensional statistics, map reduce, and skateboarding. You can occasionally find him starting brawls between Bayesians and frequentists. Hails from LA.

Akshay Rao

Akshay Rao
Client Algorithms

Akshay enjoys using data as a window to learn about why people make certain economic decisions. Raised in the Bay Area, he spends his spare time passionately following the 49ers, Warriors, and SF Giants.

Kyle Schmaus

Kyle Schmaus
Styling Algorithms

Kyle likes machine learning, R, and oxford commas. He enjoys learning new topics inside and out. During his free time he loves cooking, biking, yoga, and playing board games. Hails from the San Francisco Bay Area.

Sally Langford

Sally Langford
Merch Algorithms

Sally is excited about problem solving and learning new things from data. Originally from Australia, she loves to travel and be outdoors. She will happily eat cereal for every meal, despite also really enjoying cooking and baking.

Nick Kridler

Nick Kridler
Merch Algorithms

Nick enjoys using python to solve data problems, build tools, and save whales. He also enjoys Japanese food, Final Fantasy, and slot machines. Hails from western MD.

John McDonnell

John McDonnell
Client Algorithms

John has a passion for learning, often with the aid of machines. He is a devout Bayesian but a Python vs R agnostic. He claims to be from Seattle, but he's lived all over the northerly parts of North America.

Tarek Rached

Tarek Rached
Data Platform

Tarek builds tools that reveal how things work. An engineer by training, he's worked in data-focused organizations in the energy and programmatic advertising industries. Loves bikes, boards, and other people's dogs.

Aaron Bradley

Aaron Bradley
Styling Algorithms

Aaron likes big ideas and transforming today's impossible into tomorrow's commonplace. He joins us from northern Colorado and enjoys good wine, tasty coffee, and building battle-ready robots.

Derek Bennett

Derek Bennett
Data Platform

Derek’s passion is creating applications that offer new insights and support decision making. He is equally comfortable playing with new technologies or tinkering with antiquated photography equipment. When not developing with Scala, Java or Python, Derek enjoys hiking and outdoor activities along with travel, art, and wine tasting. Care and feeding can be accomplished with a good cup of coffee, an IPA, or a long lunch.

Songya Pan

Songya Pan
Client Algorithms

Hailing from China, coming from rocket science and working on optimization problems.

Doug Rudd

Doug Rudd
Merch Algorithms

Doug spends his inside time using computers of various size to solve problems of concomitant scale. While outside he can be found hiking, diving, climbing, and otherwise enjoying the third dimension. Originally from AZ, but lately from IL, he's glad to be back where elevation changes.

Chris Rinaldi

Chris Rinaldi
Merch Algorithms

In a previous life, Chris worked with the Department of Homeland Security and the US Army to create predictive models and perform threat analyses. Now, he uses data to help design and analyze clothing.

Stefan Krawczyk

Stefan Krawczyk
Data Platform

Stefan loves the stimulus of working at the intersection of design, engineering, and data. He grew up in New Zealand, speaks Polish, and spent formative years at Stanford, LinkedIn, Nextdoor & Idibon. Outside of work Stefan likes to 🏊, 🌮, 🍺, and ✈.

Helena Wang

Helena Wang
Merch Algorithms

Helena tries to make sense of the world through science and data. She also likes traveling, coffee, strange foods, languages, and big fluffy dogs. China → SF → LA → NYC → SF.

Thomas Miller

Thomas Miller
Data Platform

Despite graduating and becoming a full-time platform engineer here at Stitch Fix, he will forever be seen as our intern. He may spend his days wrestling distributed systems into submission and his nights cooking, but he’s only really good for grabbing the rest of the team coffee. Thanks Thomas!

Alexander Demidko

Alexander Demidko
Data Platform

Alex enjoys building distributed systems using functional languages. Outside of work he is into hiking/camping and listening to singer-songwriter music. Highly addicted to snowboarding and basketball. Hails from Moscow.

Elizabeth Bennett

Elizabeth Bennett
Data Platform

Elizabeth Bennett, a Denver native, moved to the Bay Area shortly after graduating from college with degrees in Computer Science and Bassoon Performance. While most of her days are spent writing Python for Stitch Fix's data platform, she does manage to spend a fair amount of time knitting, bouldering, and gaming. Also, it is in fact true that Jane Austen named her character after Elizabeth.

Jeff Schecter

Jeff Schecter
Styling Algorithms

Jeff appreciates clever loss functions, latent spaces with interesting properties, and generative models for funky high-dimensional distributions. He makes wheel-thrown ceramics and comes from North Carolina.

Neelesh Salian

Neelesh Salian
Data Platform

Neelesh works to help make Data products. He travels, eats random cuisines and listens to 80s music more than you think. Is teaching himself to be a better photographer and is also fascinated with Architecture. Misses Bombay, India, where he grew up, fairly close to a beach.

Hoda Eydgahi

Hoda Eydgahi
Styling Algorithms

likes 🍪 & 🂱.

Jana Beck

Jana Beck
Data Platform

Jana loves the Frankenstein’s monster-ish mashup of engineering, visual art, design, and cognitive science that is data visualization. Outside of work, Jana is oft to be found in a dance studio, mostly doing classical ballet.

Come Work with Us!

We’re a diverse team dedicated to building great products, and we’d love your help. Do you want to build amazing products with amazing peers? Join us!