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Sift Science Overview

San Francisco, CA
51 to 200 employees
Company - Private
Information Technology
Unknown / Non-Applicable
Every day, hundreds of online businesses – like Airbnb, Yelp, Twitter, Twilio, and – use Sift Science's world-class machine learning technology to protect their platforms from fraud and abuse. Comprised of a multidisciplinary team of ... Read more

Mission: Our mission is to power trust online. We're using machine learning to fight fraud and abuse, protecting 6,000+ sites and apps from fraudsters, spammers, and scammers.

Sift Science – Why Work For Us?

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.

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.

Help us make the internet a better place. Together.

Inspiring mission? Check. Cool technology? Check. A genuinely nice group of people to spend your work day with? Yep, that’s also a check. Come help us fight fraud and abuse with real-time machine learning.

Our secret sauce

Why do we love coming to work every day? No question: the people. At Sift Science, it's easy to be yourself (whoever that may be). Still, there are some common qualities that people who work here have in spades.


“This is the first place I’ve worked where everyone eats lunch together every day!” ...says pretty much every Sift Science employee, during their first week.

Nope, group lunch isn’t mandatory. It’s just that people really like spending time together, chatting about projects and passions, kicking around new ideas. Culture just happens naturally. 



We also like all types of organized fun. Happy hours, game nights, weekend hikes, morning basketball, whiskey club, movie nights, cookbook club, animal shirt Fridays…

The list of ways to enjoy yourself goes on and on. Don’t find something that’s up your alley? Just suggest it – we’re always up for learning something new.


San Francisco is at the heart of tech innovation and culture – and Sift Science is located smack-dab in the heart of San Francisco’s Financial District. Talk about a job with a view.

Have a walking meeting along the Embarcadero, grab a coffee at the Ferry Building, fit in a quick workout at the YMCA. There’s no better place to work and play.

Easy integration? Don't take our word for it!

Watch a brief excerpt from Michael Widell's talk at the Nordic API conference, where he uses Sift Science as an example of a product that is easy-to-integrate and has open, accessible, and easy to understand API documentation.

Sift Science Reviews

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Jason Tan
23 Ratings
  • "A great place to work!"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Anonymous Employee
    Current Employee - Anonymous Employee
    Positive Outlook
    Approves of CEO

    I have been working at Sift Science (More than a year)


    Great company culture, growing team, really exciting space to be in


    I don't have any negative feedback!

See All 31 Reviews

Sift Science Photos

Sift Science photo of: Our office!
Sift Science photo of: Celebrating our New Sifties!
Sift Science photo of: Lots of natural light in our offices
Sift Science photo of: Sift Cares - Community Work!
Sift Science photo of: team work
Sift Science photo of: Inside the phone booths!
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Sift Science Interviews



Getting an Interview

Getting an Interview





    Entry Level Engineer Interview

    Anonymous Interview Candidate in San Francisco, CA
    No Offer
    Positive Experience
    Easy Interview


    I applied online. I interviewed at Sift Science (San Francisco, CA) in April 2017.


    I applied online and got a reply in a week. The first round was an take home coding assignment and I had 4 days to complete it in a language of my choice. It took me about 6 hours to complete. Next round was a phone screen interview. The question tested basic probability.

    Interview Questions

    • Given an array of fruits and an other array weights of fruits, write a function to pick the fruits randomly with a probability distribution equal to its weights.   Answer Question
See All 16 Interviews

Sift Science Awards & Accolades

  • Emerging Technology Award (METAward)(Start-Up Category), Merchant Risk Council, 2014

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