Trail of Bits

About · Team

Security research should be a public good.

We publish our tools, share our methods, and advance the field with every engagement. The best way to protect our clients is to raise the security bar for everyone.

As a cybersecurity research and consulting firm, we serve clients in the defense, tech, finance, and blockchain industries. Our teams help with their most difficult security challenges by designing and building new technology, researching new techniques to advance the state of practice, and reviewing the security of the latest available technology products before they hit the market.

Research model

Founding Story

Trail of Bits launched in 2012 because the security industry had a knowledge-hoarding problem. Firms competed on secrecy while the same vulnerabilities showed up everywhere. We took the opposite approach: solve the problem once, build a tool, release it publicly. Thirteen years later, we maintain 100+ open-source projects used by security teams worldwide.

Core Principles

"Publish everything" means exactly that. Our blog posts become industry reference material. Our internal tools become community standards. When we discover a new attack pattern, we don't just report it. We build automated detection and put it in everyone's hands. This isn't a marketing strategy. It's how we think security should work.

What Makes Us Different

Typical consultancies write reports. We eliminate problems at scale. When you hire Trail of Bits, you're not buying hours of someone's time; you're buying access to research that shapes where the industry goes next. Multi-year DARPA programs. AI Cyber Challenge finalists. Vulnerabilities disclosed in systems that dedicated security teams couldn't protect. Our clients get the benefit of work that pushes the entire field forward.

Top talent

The firm invests in people who build tools, publish methods, and work across hard security domains.

As a cybersecurity research and consulting firm, we serve clients in the defense, tech, finance, and blockchain industries. Our teams help with their most difficult security challenges by designing and building new technology, researching new techniques to advance the state of practice, and reviewing the security of the latest available technology products before they hit the market.

Leadership · 7 GTM · 1 Operations · 4 Engineering · 37

"Our team is our most important area of investment. We take great pride in only accepting work we find interesting, engaging, and challenging."

Dan Guido, Co-Founder & CEO

Team directory

Researchers and engineers, organized by function.

The source page uses filters and repeated tags. This version keeps the entire team in one scanable view and reduces each person to the details that matter most: name, role, primary function, and any cross-team scope.

Listed people

49

Ordered by primary function, then alphabetically within each function.

Alex Sotirov

Leadership

Alex Sotirov

Co-CEO

Leadership
Artem Dinaburg

Leadership

Artem Dinaburg

Chief Scientist, Research

Leadership

Also Engineering

Benjamin Samuels

Leadership

Benjamin Samuels

Engineering Director

Leadership

Also Engineering

Carter Miller

Leadership

Carter Miller

Head of Talent

Leadership

Also Operations

Dan Guido

Leadership

Dan Guido

CEO

Leadership
Jim Miller

Leadership

Jim Miller

Cryptography Engineering Director

Leadership

Also Engineering

Trent Brunson

Leadership

Trent Brunson

Head of Research & Engineering

Leadership

Also Engineering

Lindsay Rakowski

GTM

Lindsay Rakowski

Sales Manager II

GTM
Amanda Stickler

Operations

Amanda Stickler

Project Manager

Operations
Heather Hickok

Operations

Heather Hickok

Program Manager

Operations
LaKisha Jackson

Operations

LaKisha Jackson

Contract Support Specialist

Operations
Mary O'Brien

Operations

Mary O'Brien

Staff Project Manager

Operations
Akshay Kumar

Engineering

Akshay Kumar

Staff Security Engineer

Engineering
Alessandro Gario

Engineering

Alessandro Gario

Senior Software Engineer

Engineering
Artur Cygan

Engineering

Artur Cygan

Principal Security Engineer

Engineering
Axel Mierczuk

Engineering

Axel Mierczuk

Senior Security Engineer

Engineering
Billy Mason Jr

Engineering

Billy Mason Jr

Staff Security Engineer

Engineering
Brad Swain

Engineering

Brad Swain

Senior Security Engineer

Engineering
Darius Houle

Engineering

Darius Houle

Senior Security Engineer

Engineering
David Pokora

Engineering

David Pokora

Principal Security Engineer

Engineering
Dominik Czarnota

Engineering

Dominik Czarnota

Staff Security Engineer

Engineering
Emilio López

Engineering

Emilio López

Senior Security Engineer

Engineering
Eric Kilmer

Engineering

Eric Kilmer

Principal Security Engineer

Engineering
Evan Sultanik

Engineering

Evan Sultanik

Principal Security Engineer

Engineering
Filipe Casal

Engineering

Filipe Casal

Principal Security Engineer

Engineering
Francesco Bertolaccini

Engineering

Francesco Bertolaccini

Security Engineer

Engineering
Fredrik Dahlgren

Engineering

Fredrik Dahlgren

Principal Security Engineer

Engineering
Graham Sutherland

Engineering

Graham Sutherland

Senior Security Engineer

Engineering
Henrik Brodin

Engineering

Henrik Brodin

Principal Security Engineer

Engineering
Jay Little

Engineering

Jay Little

Principal Security Engineer

Engineering
Joop van de Pol

Engineering

Joop van de Pol

Principal Security Engineer

Engineering
Josh Hofing

Engineering

Josh Hofing

Senior Security Engineer

Engineering
Maciej Domański

Engineering

Maciej Domański

Senior Security Engineer

Engineering
Marc Ilunga

Engineering

Marc Ilunga

Security Engineer II

Engineering
Michael Brown

Engineering

Michael Brown

Principal Security Engineer

Engineering
Nick Sellier

Engineering

Nick Sellier

Senior Security Engineer

Engineering
Opal Wright

Engineering

Opal Wright

Security Engineer II

Engineering
Paweł Płatek

Engineering

Paweł Płatek

Senior Security Engineer

Engineering
Riccardo Schirone

Engineering

Riccardo Schirone

Security Engineer

Engineering
Sam Moelius

Engineering

Sam Moelius

Staff Security Engineer

Engineering
Sam Sharps

Engineering

Sam Sharps

Principal Security Engineer

Engineering
Scott Cohen

Engineering

Scott Cohen

Senior Security Engineer

Engineering
Skylar Rampersaud

Engineering

Skylar Rampersaud

Staff Engineer

Engineering
Spencer Michaels

Engineering

Spencer Michaels

Principal Security Engineer

Engineering
Stefano Bonicatti

Engineering

Stefano Bonicatti

Senior Security Engineer

Engineering
Thomas Chauchefoin

Engineering

Thomas Chauchefoin

Senior Security Engineer

Engineering
Tjaden Hess

Engineering

Tjaden Hess

Principal Security Engineer

Engineering
Vasco Franco

Engineering

Vasco Franco

Staff Security Engineer

Engineering
Will Vandevanter

Engineering

Will Vandevanter

Security Engineer II

Engineering

Trail of Bits timeline

Milestones that shaped the team and the way it works.

The source page treats these as company history. On a team page, they explain why the roster is organized around published tools, research programs, and public artifacts instead of generic practice lines.

  1. 2012

    Trail of Bits founded

    We set out to publish security research and tooling to raise the bar for everyone.

  2. 2015

    Qualified for DARPA's Cyber Grand Challenge

    Competed to build autonomous vulnerability discovery systems as part of DARPA's Cyber Grand Challenge.

  3. 2016

    Partnered with Facebook to port osquery to Windows

    Expanded osquery to support cross-platform endpoint security monitoring.

  4. 2017

    Open-sourced Manticore

    Open-sourced Manticore, a symbolic execution framework used in DARPA research.

  5. 2018

    Released Slither and Echidna

    Released Slither and Echidna, now industry-standard tools for smart contract security.

  6. 2019

    Launched iVerify for iPhone

    Launched iVerify and co-founded the osquery Foundation with the Linux Foundation.

  7. 2024

    Selected for DARPA's AI Cyber Challenge (AIxCC)

    Selected for AIxCC and awarded $1M to build an AI-powered Cyber Reasoning System.

  8. 2025

    Won $3M second-place prize at DARPA AIxCC finals

    Won second place at DEF CON 33 and open-sourced Buttercup.

Work on problems that matter

Join Trail of Bits

Novel research, practical security work, and a remote-first operating model.

Our combination of novel research and practical solutions reduces the security risks that our clients face from emerging technologies. Our work helps drive the security industry and the public understanding of the technology underlying our world.

Join a team of experts

Tired of being the smartest person in the room? Trail of Bits is full of research engineers who analyze security issues and develop open-source solutions every day.

Work on problems that matter

From a secure blockchain to DARPA initiatives, the teams at Trail of Bits have worked with nearly every product that relies on a secure foundation.

Remote first, always

With RTOs abound, Trail of Bits believes that the best work is done where people work best. Annual off-sites offer opportunities for team building and learning.