The Leaders in Digital Trust & Safety

How Sift helps companies grow securely

Our mission

We believe trust and safety are fundamental to every online interaction. As the pioneers of Digital Trust & Safety, we help more than 34,000 sites and apps navigate the fine balance between growing revenue and protecting their business.

We believe users are innocent until proven guilty. A business’s good customers should never be turned away or made to jump through hoops. We make it easy for companies to remove friction and delight their customers, while keeping bad actors out.

We believe legacy technologies are holding businesses back. We were the first to use machine learning for fraud prevention, and our customers see the results every day. The speed, accuracy, and scalability of our solution is unrivaled.

The time to change is now. Customer expectations are higher than ever. Competition is fierce. Fraudsters innovate and scale as fast as businesses. That’s why thousands of websites and apps, from digital disrupters to Fortune 500 companies, partner with Sift.

Leadership team

Jason Tan

Jason co-founded Sift in 2011 after a career as an engineer at various Seattle startups. He is passionate about great projects and people, and is constantly challenging himself and the Sift team to be better.

Marc Olesen
President & COO

Marc’s operational experience and leadership helped Splunk, McAfee, and Dynatrace achieve scale during intense growth. He thrives in leading, connecting, and accomplishing great things as a team.

Liz Kosinski
VP People Operations

Liz ensures the well-being of our most critical asset – our people. With experience in technical recruiting and people ops, she strives to build a culture where all are engaged, supported, and learning.

Matt Green
VP Engineering

Matt has worked on large-scale distributed systems for two decades, including at Amazon for 17 years. He loves solving customer problems by leveraging data science with diverse teams.

Geoff Huang
VP Product Marketing

Geoff has led product marketing at companies like RingCentral and VMware, with a focus on go-to-market execution. He is a strong believer in simplifying the complexity of disruptive technology.

Matt Camassa
SVP Worldwide Sales

Matt has a long track record of success in sales and go-to-market execution, driving companies towards scalable growth. He is a passionate leader who believes companies are only as excellent as the people they employ.

Melissa Siems
VP Corporate Marketing

Melissa has led teams that grow sales and scale brand recognition for companies of all sizes. She believes in the power of marketing to connect a company with its customers, and light the way together.


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