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Security Engineer I, Application Security
Location: Remote, United States
About Trail of Bits
Founded in 2012 by 3 expert hackers with no investment capital, Trail of Bits is the premier place for security experts to boldly advance security and address technology's newest and most challenging risks. It has helped secure some of the world's most targeted organizations and devices. Our combination of novel research with 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.
Cybersecurity preparedness is a moving target. Companies like ours are the tip of the spear in the fight against attackers. Our research-based and custom-engineering approach ensures that our client's capabilities are at the forefront of what's available. For companies and technologies that live and die by their security, a proactive, tailored approach is required to keep one step ahead of attackers.
Democratizing security information is essential. As part of our business, we provide ongoing informational support through blogs, whitepapers, newsletters, meetups, and open-source tools. The more the community understands security, the more they'll understand why a company like ours is so unique and valuable.
The Role
Trail of Bits seeks a Security Engineer I for our Application Security practice. You will contribute to security assessments of client software, partner with more experienced engineers, identify vulnerabilities across the application and system levels, and own clearly scoped pieces of client engagements. You will drive your own vulnerability analysis, develop tools alongside the team, and help clients understand and fix the issues you find.
This role bridges vulnerability research and applied security. Your work will be hands-on: analyzing complex code, building custom tooling, conducting threat modeling, and owning your findings through client delivery. It is distinct from roles centered on security operations, SOC work, GRC, compliance, policy, audit, or general security administration. Candidates from broader or adjacent security backgrounds should be prepared to talk through relevant hands-on, code-level security work they have personally completed.
Security Engineer I is an early-career role, but it is not a training role for someone new to software or security. Relevant experience may come from professional work, internships, advanced coursework, independent research, open-source contributions, CTFs, or substantial personal or academic projects. Regardless of where you gained the experience, you should be able to talk through code-level security work you performed, how you approached the problem, and the conclusions you reached. You will receive direction and review from a project lead while independently completing well-scoped technical work.
What You'll Achieve
What You'll Bring
The following are requirements for this role:
Preferred Qualifications
These are not day-one requirements, but areas where the role can grow.
Compensation
The base salary range for this full-time position is $100,000 to $160,000 and will include additional bonuses. Compensation is informed by geographic location, relevant experience, and internal equity. These figures represent starting compensation for U.S.-based candidates. For specifics, please discuss with your recruiter during the hiring process.
Trail of Bits offers a comprehensive benefits package including health insurance, retirement contributions, professional development stipends, and generous PTO.
Trail of Bits, Inc. participates in E-Verify, the US federal electronic employment eligibility verification program. Learn more.
Trail of Bits is an equal-opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability, or any other characteristic protected by law, and we provide reasonable accommodations throughout the hiring process on request.
Benefits, Perks & Wellness
Trail of Bits is our people, not a place. With over 100+ employees working from every time zone across the globe, our remote-first culture is built on autonomy and trust (and backed by smile-worthy benefits) for full-time employees:
Empowered Living
Nurturing New Beginnings
Work & Life Enrichment
Community Impact
Trail of Bits is our people, not a place. With over 100+ employees working from every time zone across the globe, our remote-first culture is built on autonomy and trust (and backed by smile-worthy benefits) for full-time employees:
USD 100,000 - 160,000
Annually
Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Flexible Spending Account (FSA)
Fitness Stipend
401(k) / Retirement Plan
401(k) Match
Performance Bonus
Relocation Assistance
PTO / Vacation
Paid Holidays
Flexible Schedule
Company Offsites / Retreats
Home Office Stipend
Fertility Benefits
Parental Leave
Learning & Development Budget
Conference Attendance
Mentorship Program
Employee Referral Bonus
Team Events & Social Budget
Charity Matching
It depends on the role. Trail of Bits has hired mostly in the United States and has also posted roles open to people living in the United Kingdom. Each posting states where the role can be held, for example "Remote within the United Kingdom", so the location line on the posting you are applying to is the one to check.
No. Relocation is optional, and its US postings offer $10,000 in relocation assistance if you choose to move to New York City.
The careers page describes four stages over about three weeks from application to offer: a 30-minute preliminary screen, a 60-minute technical screen, a take-home exercise, and a final panel of 90 minutes to 2 hours. You get 3 to 7 days for the take-home, which is scoped to about 2 hours of work, and an existing work sample can substitute for it. A practice lead reviews the take-home, and there are no whiteboard puzzles or algorithm trivia. All interviews run on Google Meet, applications are reviewed within 5 to 7 business days, decisions come within 5 business days of the last interview, and accommodations are available on request.
Job postings list fully company-paid health, dental, vision, disability and life insurance, and the careers page adds access to Kindbody for gynecology and fertility care. Time off includes 20 days of paid vacation with flexibility for more, 15 company holidays and 4 months of paid parental leave. US roles include a 401(k) with a 5% company match. Postings also list a $1,000 work-from-home stipend, an annual $750 learning and development stipend and philanthropic matching up to $2,000 a year. The careers page adds end-of-year performance bonuses and bonuses for public presentations, blog posts and referrals.
Yes. Its About page says the apprenticeship "pairs new engineers one-on-one with a senior mentor on real audits, packing roughly two years of experience into three months."
Yes. Besides its specific openings, Trail of Bits keeps a general Talent Pipeline listing on its job board that you can apply to when no posted role matches your background.
Commuter Benefits