


Trail of Bits
Trail of Bits is a security engineering firm that audits code for some of the world's most targeted organizations and approaches the work the way an attacker would. Founded in 2012 by three people with no investment capital, the firm publishes research and builds open-source security tools across software security, reverse engineering, cryptography, blockchain and AI/ML.
Trail of Bits's Remote Policy
Trail of Bits is remote-first. Its team page says: "Remote first, always. While the rest of the industry calls people back to the office, we believe the best work happens where people work best." The careers page FAQ adds: "All roles are remote-friendly and we work across multiple time zones. Some positions list a primary city for tax or in-person reasons, but day-to-day work is remote."
On working hours, the same FAQ says: "Flexible, with enough overlap across time zones for teams to collaborate. Core hours are set per role and team, and we discuss them during the interview."
Benefits & Perks

Health & Wellness
7
Health & Wellness
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Flexible Spending Account (FSA)
Fitness Stipend

Financial
5
Financial
401(k) / Retirement Plan
401(k) Match
Performance Bonus
Relocation Assistance
Commuter Benefits

Time Off
3
Time Off
PTO / Vacation
Paid Holidays
Flexible Schedule

Remote & Equipment
2
Remote & Equipment
Company Offsites / Retreats
Home Office Stipend

Family & Care
2
Family & Care
Fertility Benefits
Parental Leave

Professional Growth
3
Professional Growth
Learning & Development Budget
Conference Attendance
Mentorship Program

Culture & Perks
3
Culture & Perks
Employee Referral Bonus
Team Events & Social Budget
Charity Matching
Tech Stack
JavaScript & Libraries
Frameworks
Databases
Infrastructure
CMS & Content
Hosting
Sales & CRM
Integrations
Media
Why Trail of Bits
Trail of Bits took the $3M second-place prize at the DARPA AIxCC finals in 2025, and it works with OpenAI on Patch the Planet, an open-source security initiative. CEO and co-founder Dan Guido describes how the firm chooses its engagements: "We take real pride in only accepting work we find genuinely interesting, engaging, and hard."
Client audits are only part of the job. The firm says it runs "lower utilization than the industry so engineers get dedicated time to build tools and research, with bi-weekly lunch-and-learns and a paper reading group." Its apprenticeship program pairs new engineers one-on-one with a senior mentor on real audits. In the company's words, its culture "rewards curiosity, deep technical work, and visible public output," and annual off-sites bring the whole team together.
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Open Positions


Security Engineer I, Application Security
Trail of Bits
Senior Security Engineer Cryptography
Trail of Bits
Solutions Architect
Trail of Bits
Engineering Director, Application Security
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