We are Sift Science. We do trust.
Unfortunately, evil exists. Fortunately, we're here to stop it! Fraud and abuse plague online businesses of all types, from marketplaces to payment processors, social networks to e-commerce stores. As the internet's trust layer, Sift Science's mission is simple yet powerful: make these online experiences faster, smoother, and safer – using the smartest technology around.
Up, up and away!
Risk scores per day
Events analyzed per day
Launched in 2011 from the Y Combinator incubator program, Sift Science has grown into the leading machine learning fraud detection solution for online businesses. Every day, thousands of websites and apps rely on our cloud-based machine learning to eliminate fraud, slash costs, and grow revenue. And we're just getting started.
Meet the team.
With leaders hailing from from Google, Amazon, Zillow, Twilio, and New Relic, the Sift Science team has decades of experience building teams and technology, scaling startups, and solving the internet's toughest problems.
A software engineer at heart, Jason was an early engineer at a few Seattle startups (Zillow, Optify, BuzzLabs), before migrating to San Francisco to start Sift Science in 2011. He enjoys chess, basketball, and freestyle rapping.
Fred loves building well-designed, robust, scalable systems. Before Sift, he was a tech lead at Google, Principal Engineer at Jambool, CTO at Teachstreet, product lead at Zillow and engineer at Amazon.
Zee loves building customer bases and partnerships for global cloud businesses. Prior to Sift he led sales at Twilio, and business development for EC2 at Amazon Web Services.
Head of Sales
Liz focuses on the most critical asset of an organization - its people. She has startup experience in Technical Recruiting and People Ops and is pursuing her MS from Northwestern in I-O Psychology and Coaching.
Director of People Operations
Bill loves data, analytics, and fighting bad guys. Prior to Sift he led product marketing for New Relic and held product management and marketing roles at VMWare and Oracle.
Head of Marketing
A team builder, problem solver, avid traveler and proud mother, Karen held executive roles at Google in Operations, Strategic Partnerships and Finance. A former management consultant, she has an MBA from Yale.
Head of Business Operations
Thomas loves building products that solve critical business problems. Typical enterprise software shenanigans are his mortal enemy. Prior to Sift, Thomas worked at Twilio, AdMob and Google.
Head of Product
Passionate about building high performance teams, Toshi ran engineering at several high-growth startups as CTO & VP Engineering. Prior to helping startups, he held engineering roles at Oracle and holds a CS degree from Princeton.
Head of Engineering
The rest of the family...
- Aaron Beppu
Aaron loves playing with data, but also enjoys travel, seitan, bossa nova guitar, and hugging strangers online. Previously he has worked on search ranking, datamining, analytics infrastructure and distributed systems at Etsy and A9.
- Aaron Tietz
Aaron used to be a preschool teacher in San Diego, often answering to the name King Triton #LittleMermaid #makebelieveontheplayground. More recently, he writes and films sketch comedy skits, somehow convincing his friends to be in them. Also, he loves bananas. And laughing with people. And bananas.
- Alex Paino
Alex enjoys rooting for the St. Louis Cardinals, hiking, travelling, and eating Thai food. He recently graduated from the University of Missouri, where he did ML research while earning BS's in Math and Computer Engineering. Prior to Sift, Alex interned at Microsoft and Facebook.
- Andrey Gusev
Andrey enjoys machine learning, search, NLP, and distributed systems. Before Sift, Andrey was a lead engineer at Salesforce working on search and machine learning systems; a grad student researching NLP at Stanford, and a student at Illinois.
- Arjun Krishnaiah
Arjun is interested in distributed systems, soccer, and travel. He really likes ice cream, maybe a bit too much. Before joining Sift, he was an engineer with Cloudability, and before that, Datahero.
- Brandon Sligh
Brandon is a pizza aficionado and labrador owner who grew up in the Bay Area. Prior to Sift, he recruited for MongoDB, Scribd and at a contingency search firm.
- Che-Liang Chiou
Che-Liang enjoys reading comics. He wrote firmware for Chrome OS and data logging service for Android at Google. He is a terrible driver by the way.
- Doug Beeferman
Doug loves analyzing and visualizing data. Before Sift, he worked at Google on ads quality, IP geolocation, speech recognition, and economics; a research scientist at Lycos and a grad student at CMU.
- Emerald Maravilla
Senior Manager Sales Development
Emerald loves the Golden State Warriors, Tony Danza, trivia games, green tea and her dog, Splash. Prior to Sift, she worked at Twilio and Box and studied at NYU.
- Emily Chin
Emily loves proper grammar, sending gifs, eating cake, reading books, beach naps, and petting dogs. She holds a Master in Public Diplomacy, and brings experience in team building, branding, and experiential marketing.
- Erica Schild
Trust & Safety
Erica loves solving complex business problems and creating change in organizations. Prior to Sift, she worked on implementing new regulatory requirements for a regional bank. She studied Russian at Yale and enjoys cooking, music, yoga, and traveling.
- Eugenia Ho
Eugenia enjoys pina coladas, playing video games, eating and watching movies. She recently graduated from UC Berkeley with a degree in Art History and Art Practice. Prior to Sift, she worked as a product designer at Klout.
- Fredy Santiago
Fredy enjoys creating and illustrating things on a regular basis. Prior to Sift Science he was a clothing graphic designer. Fredy enjoys beach days, eating flan , and getting lost in a nature hike.
- Gary Lee
Gary loves the outdoors and enjoys creating nice things that augment data with human intellect. He graduated from Stanford with a BS and most of an MS in Computer Science. He has worked as an Engineer and a Product Manager at Apple and Nextdoor.
- Grace Yau
Grace is a native Angeleno who is happily transplanted to San Francisco. In her free time, she enjoys baking pies, hiking Mount Tam, and traveling.
- Grant Timmerman
Grant is a maker at heart who loves building the web, cooking gourmet food and rapid prototyping. Before joining Sift, he graduated UW with a BS in computer science and interned at Google, Sift Science, LinkedIn, Tableau Software, and Nor1.
- Ian Dutra
Ian runs on coffee and some sort of energy emitted from deep space. He likes rocks, beaches, deserts, cliffs and mountains but food is still his favorite past-time. #livingthedream
- Jacob Burnim
Jacob joins Sift after finishing his PhD on lightweight specifications for parallel software at UC Berkeley. Before Berkeley, he applied machine learning to search ranking at Google.
- Janice Lan
Janice loves traveling, music, table tennis, cute animals, and Japanese food. She hopes to make the world a better place with machine learning and AI. Prior to Sift, she did her bachelors and masters in Computer Science at Stanford.
- Jason Kulish
Born and raised in the Bay Area, Jason started his career teaching English in Japan and has worked in tech since 2006 for companies like Google, Return Path, and Thumbtack. He is a proud Bruin, likes traveling, eating burritos, and is a huge film buff. He recently took a surfing lesson in Hawaii and is pretty confident he's the next Kelly Slater.
- Jim Zhang
Jim is a student from the University of Waterloo. He enjoys solving puzzles and listening to music, and he recently developed a strong interest in gastronomy. Prior to Sift, he has been an intern at Google and LinkedIn.
- John Wu
Business Operations Associate
In his free time, you are likely to find John trying to cook a new recipe, planning his next adventure, or working towards a one minute handstand. Prior to joining Sift, he was a consultant at McKinsey serving mainly tech and retail clients. He graduated from Stanford with a degree in Computer Science.
- Julia Martin
Julia is a fan of weekend getaways, hiking, yoga and all things food related. She sees endless value in puns, a good cup of coffee and an adorable animal video.
- Kai Morrison
Kai loves developing organizational procedures, best practice policies, and other things that people usually want someone else to do. In addition to the occasional stage performance as an actor, he also designs Fight Choreography for stage and film, writes music, and plays waaaaaay too many board games.
- Kanak Biscuitwala
Kanak is a huge sports and technology enthusiast. Prior to joining Sift, he built distributed systems at LinkedIn, and brought mobile and social to journalism and finance at Stanford.
- Kaoru Kohashigawa
You can typically find Kaoru programming, snowboarding, mountain biking, playing Magic cards, or eating. He's certain he doesn't pronounce his name correctly. Coming from Hawai`i and Texas, he has great appreciation for Bay area weather.
- Katherine Loh
Katherine enjoys baking, rock climbing & chasing her dog. Prior to Sift, she supported strategic partnerships for Google Chrome and Google Registry.
- Keren Gu
Keren loves sailing, math, cats, hiking and camping, reading modern literature over warm beverages, and obsessively organizing things into their perfect places. Prior to Sift, she received her Master's from MIT in Computer Science.
- Laura Milanez
Laura loves playing Touch rugby, eating and new adventures. Before Sift, she studied Economics at Carleton College and travelled around. Laura is originally from Brazil, and has lived in four different countries.
- Lynda Phan
Lynda is a Bay Area native and loves dogs, garlic noodles, HIIT and dessert. Prior to Sift, Lynda recruited for Google, in addition to companies within Finance, Accounting and BioPharma industries.
- Marcus Rider
Marcus loves the outdoors, traveling, and eating. He graduated from Carleton College, where he studied religion and played rugby. Before Sift he was studying Arabic in the US and MENA region.
- Megan Mann
Megan enjoys organizing items and learning new things. Prior to Sift, Megan worked in customer support and product management at Bridgewater Associates, building analytics tools for economists.
- Micah Wylde
Micah loves building reliable distributed systems, folk music and the outdoors. Before Sift he was working on large-scale data processing infrastructure at Quantcast.
- Michelle Arguelles
Michelle loves traveling, a good sitcom, and a good cheese. Prior to Sift, she worked as a Risk Analyst at WePay. She graduated from Boston College with a degree in International Studies.
- Miguel Veloz
Strategic Account Manager
Miguel enjoys cooking, politics, reading, foreign languages, and all-night discussions on the nexus of art and pop culture. He's on a quest for the perfect London Fog. He graduated from Yale and worked in Google's Large Customer Sales division for several years.
- Nick Hurlburt
After working at Amazon, Nick did humanitarian work in Asia and Africa before coming back and finding a place at Sift. He continues to volunteer with non-profits when he isn't hunting for the best khao soi in San Francisco.
- Nick Priestley
Nick enjoys stand up comedy, collecting sneakers, and finding new restaurants in the Bay Area. Before joining Sift, Nick worked as an Account Executive at Twilio and a Manager at Apple Retail.
- Nikhil Chari
Nikhil enjoys travelling and learning new things. Lately he's been getting back into basketball. Prior to Sift, he worked as an Account Executive at Twilio and Checkr, and played poker before that.
- Noah Grant
Noah loves third wave coffees and mid-shelf bourbons, and can often be found dreaming of biking from one end of Europe to another. He graduated a few years ago from UC Berkeley and previously worked in three other engineering disciplines before getting hooked on programming.
- Roxanna "Evan" Ramzipoor
Business Development Associate Intern
Evan is a writer who enjoys running, good movies, bad puns, and the Oxford comma. She's currently working on novels about a WWII newspaper heist and scandalous early American presidents.
- Saad Munif
Sr. Manager Demand Generation
Saad enjoys playing and watching sports, mainly football and basketball and is usually busy chasing around his two toddlers. Before Sift he was responsible for lead generation at Twilio and online marketing at Sybase.
- Saam Talaie
When he's not out hiking or practicing his photography skills, Saam is working on problems at the intersection of engineering and machine learning. Prior to Sift, he built systems powering Apple’s retail and online stores.
- Samir Rao
Business Operations Associate
Samir enjoys watching mind-bending thrillers, consuming tacos and other delicious food, and thinking about how to make life more efficient. Prior to Sift, he was an investment banker at JP Morgan.
- Sarah Beldo
Sr. Content Marketing Manager
Sarah loves words, design, food, traveling, and living in the Bay Area. Before Sift, she worked with content at LinkedIn, LexisNexis, and a handful of smaller companies.
- Sarfaraz Rydhan
Sr. Business Development Manager
Sarfaraz is an avid fan of the Oakland Raiders and enjoys watching 90's cartoons with his boys. Prior to Sift, he worked at ecommerce companies as an engineer and entrepreneur.
- Scott Vrable
Scott enjoys movies, running, classic literature and autumn in New England. Before Sift, he worked as a Front-end Engineer on the Marin Software Display Team, formerly Perfect Audience.
- Swaroop Sham
Sr Product Marketing Manager
Swaroop is passionate about traveling and fan of public radio. In his past life, Swaroop worked at security companies such as Proofpoint, FireEye and F5 networks in PMM and Engineering roles.
- Tai-Jin Lee
Tai-Jin enjoys playing piano, playing and watching Starcraft, munching on esoteric foods, and automating everything. Before Sift he was the jack of all trades at HealthLoop and TrialPay.
- Tim Brown
Tim spends his free time snowboarding, surfing, and sailing. Prior to Sift, he was working at LinkedIn after graduating from the University of California, Berkeley.
- Vinson Lee
Vinson is an adventurer and loves building rockstar teams. Prior to Sift, Vinson led operations initiatives for Google Payments and Google Play Risk teams as well as data driven optimization for Disney Parks and Resorts.
- Vishal Arya
Business Development Manager
Vishal enjoys economic history, basketball, and the (slow) journey towards membership in the 1000-pound club. Prior to Sift, he led merchant partnerships at Marqeta and worked in business development at Intel.
- Warren Harper
Warren loves surfing, skydiving and the outdoors. Prior to joining Sift, he worked as a designer at Red Bull and lead creative for a Big Data startup. Originally from South Africa, he moved to California in 2013 and loves it.
- Yoav Schatzberg
Yoav enjoys rock climbing, surfing, exploring San Francisco, and all-you-can-eat restaurants of all types. Before Sift Yoav worked as a Software Engineer on Software Defined Networking at Intel.
- Zorah Fung
Zorah spends her free time cooking, crafting, solving puzzles and building a collection of musical instruments. In addition to working at Sift, Zorah will be joining the UW CSE Faculty as a Lecturer in January 2016 to fulfill her passion for teaching.
Andreessen Horowitz Partner
Like what you see? Join the team!
We're building an incredible machine learning, big data, cloud, SaaS company in the heart of San Francisco. But hey - we're not all about buzzwords. We're also about defeating evil and making the internet a safe place for everyone!Check out careers