Working at Sift | Glassdoor

Sift Overview

San Francisco, CA
51 to 200 employees
Company - Private
Unknown / Non-Applicable
Sift, formerly Sift Science, is the leader in Digital Trust & Safety, empowering companies of all sizes to unlock revenue without risk. Sift prevents fraud with industry-leading technology and expertise, an unrivaled global data network, and a commitment to ... Read more

Mission: To help companies seize new revenue opportunities and grow into new markets without risk, by moving beyond reactive fraud-fighting to the Digital Trust & Safety mindset.

Sift – Why Work For Us?

Sift is a hyper-growth Series D company that facilitates the largest trust network of online businesses and consumers on the internet.

The Sift Trust Platform uses real-time machine learning to accurately predict which users businesses can trust, and which ones they can’t. The upshot? Consumers know which companies they can entrust with their personal and financial information. And businesses can customize each user's experience based on their trust score – which leads to more revenue, higher conversion rates, and less fraud and abuse.

Come do your best work, with the brightest fraud fighters in the industry - Sift Careers

Why work with us - Sift Careers

Work/life balance

We’ve got runners, cyclists, yogis, and even a Sift Hiking Club. We also participate in kickball and basketball leagues. If you’re more the indoor type, join our board and video game enthusiasts. We host movie nights and have clubs for cheese, coffee, wine, and whiskey.

Investing in our people

We invested in a Talent Development function before any of our peers. This team is responsible for the strategy and execution of our learning culture, including manager effectiveness feedback and training, a peer feedback process, Radical Candor training, individual coaching, and just-in-time learning content from cutting-edge providers.


Whether it’s hosting middle schoolers, a Women in Tech event, or a discussion about machine learning, Sifties are always finding a way to give back to the community. Sift Cares is an initiative which organizes a variety of events throughout the year, allowing Sifties to get involved with a myriad of worthy community causes through volunteering, events, and knowledge sharing.

Our Mission

We’re solving an important problem. Fraud and abuse plague online businesses of all types, from marketplaces to payment processors, social networks to e-commerce stores. In fighting fraud we’re making online experiences faster, smoother, and safer – using the smartest technology (and people!) around. Very rarely do you find the opportunity to work with a company that leverages cutting-edge technology while solving critical global problems

Diversity & Inclusion

Sift is an equal opportunity employer. Our core value of “Be Tough On Ideas And Excellent To Each Other” is built on a foundation of diversity and inclusion; we work together to ensure the best ideas win. We hire people with different perspectives, educational backgrounds, and life experiences, because we know this makes us stronger, healthier, and more innovative. Our commitment to belonging enables us to bring our full selves to work so we can contribute our talents in meaningful ways and “Win As One Team.”


What Sifties are saying 

Engineering @ Sift

The members of our engineering team are building:

  • Highly Scalable, Distributed Microservices that can handle hundreds of millions of events per day
  • Machine Learning Pipeline leveraging Kafka & Spark
  • 100+ Node HBase & ElasticSearch Cluster that stores Petabytes of global fraud data
  • Distributed Workflow Systems that automate our key customers’ business processes
  • Highly interactive UI leveraged by thousands of fraud analysts around the globe using React.js, ES6, and D3.js

We're open for business in Seattle

For Developers

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 Reviews

Rating TrendsRating Trends
Recommend to a friend
Approve of CEO
(no image)
Jason Tan
40 Ratings
  • "One of the best startups for 2019"

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Principal Software Engineer in Seattle, WA
    Current Employee - Principal Software Engineer in Seattle, WA
    Positive Outlook
    Approves of CEO

    I have been working at Sift full-time (More than a year)


    Vision, leadership
    The problem they are solving is really important and is a big issue for online commerce today
    Very talented engineering team


    Typical flux with a startup
    Lot of scope for defining and implementing process for reliability and scalability.

See All 50 Reviews

Sift Photos

Sift photo of: .
Sift photo of: Help us build the Trust Platform!
Sift photo of: .
Sift photo of: Daily catered lunch
Sift photo of: We have many bike racks for those who prefer to commute on two wheels
Sift photo of: 2017 Company offsite in Santa Cruz
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Sift Interviews



Getting an Interview

Getting an Interview




  1. Helpful (1)  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview


    I applied through other source. The process took a week. I interviewed at Sift in October 2014.


    I applied through Piazza Careers and was called only a week after. The first round was a basic programming round. The questions asked were 1) Level order traversal of a tree 2) Difference between a shallow vs deep copy

    Interview Questions

See All 29 Interviews

Sift Awards & Accolades

  • Best Workplace, Inc. Magazine, 2018
  • Emerging Technology Award (METAward)(Start-Up Category), Merchant Risk Council, 2014
  • Industry Award, MRC Technology, 2017
  • Best Antifraud Solution, CNP Awards, 2018
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