Senior Security Engineer - Vulnerability Research

The Basics Tanium is looking for a security engineer to join the Vulnerability Research team within the R&D Security organization, which protects the software and cloud services our customers depend on. Tanium's customers secure some of the most consequential networks in the world and they extend us a great deal of trust. The Vulnerability Research team is responsible for hunting for previously-unknown vulnerabilities in our software and driving them to remediation before attackers can exploit them. In this role, you will continuously raise the bar for attackers, making vulnerabilities in Tanium software harder and more expensive to find. Tanium is leveraging frontier models and developing agentic security workflows to scale and accelerate the find-and-fix loop. You will apply your deep security expertise to decide what to hunt for and streamline the vulnerability discovery, triage, and remediation processes. What you’ll do • Decide which attack surfaces and bug classes to go after and build the capability needed to discover new vulnerabilities • Triage newly discovered vulnerabilities quickly and accurately, ranking them by exploitability and actual impact • Make remediation easy for engineering by providing high-quality patch guidance and working pull requests in addition to the vulnerability reports • Maintain a threat model of Tanium software and services and use it to direct future vulnerability research projects • Drive vulnerability research with frontier AI capabilities by evaluating what is possible using in-house and third-party tooling and building agentic workflows around what works • Build and maintain reliable tooling to support vulnerability research efforts including AI skills, fuzzing harnesses and static and dynamic analyzers • Shorten the time from detection to remediation by driving down false positive rate and improving finding quality • Perform source code review and targeted security assessment of high-risk components We’re looking for someone with Education • Bachelor's Degree in Computer Science, or other relevant degree or equivalent experience Experience • 5+ years industry experience, 7+ preferred • Strong understanding of web and native application security • Experience with hands-on vulnerability research via source code review, manual application penetration testing, or fuzzing • Expertise in determining the severity and exploitability of a vulnerability and its impact to the business • Able to read and write code in at least one of: Go, C++, TypeScript/JavaScript, or Python • Experience with the process of developing, building, and shipping secure code Nice to have: • Experience applying frontier models to vulnerability research, and an informed view of where AI accelerates outcomes and where it manufactures noise • Experience with reachability or exploitability analysis to separate real findings from theoretical ones at scale • Experience with native code security (C/C++) in privileged or agent-based software • Experience with cloud platforms (AWS or Azure preferred) • Published vulnerability research, credited CVEs, bounty findings, open-source security tooling, or conference talks • Strong understanding of applied cryptography, including encryption, hashing, and secure key management About Tanium Tanium is the Autonomous IT company. As Al accelerates both innovation and risk, Tanium Atlas, the company's autonomous operating system, puts the full depth of the Tanium Autonomous IT Platform behind every IT and security operator - human and agentic. Tanium provides the real-time intelligence, agentic decision-making, and autonomous execution operators needed to detect, decide, and remediate at machine speed across their endpoint estate. The company is recognized as a Leader in the inaugural 2026 Gartner® Magic Quadrant™ for Endpoint Management Tools, as a Leader in the IDC MarketScape: Worldwide Client Endpoint Management Software for Windows Device Management 2025-2026 Vendor Assessment, and as a Leader in The Forrester Wave™. Endpoint Management Platforms, Q2 2026. To learn how Tanium delivers Autonomous IT for unstoppable business, visit www.tanium.com and follow us on LinkedIn and X. On a mission. Together. At Tanium, we are stewards of a culture that emphasizes the importance of collaboration, respect, and diversity. In our pursuit of revolutionizing the way some of the largest enterprises and governments in the world solve their most difficult IT challenges, we are strengthened by our unique perspectives and by our collective actions. As a global organization with stakeholders around the world, it’s imperative that the diversity of our customers and communities is reflected internally in our team members. We strive to create a diverse and inclusive environment where everyone feels they have opportunities to succeed and grow because we know that only together can we do great things. Our commitment to excellence and innovation has earned us a place on the Forbes Cloud 100 list for ten consecutive years, and we continue to be recognized worldwide as a great place to work. Each of our team members has 5 days set aside as volunteer time off (VTO) to contribute to the communities they live in and give back to the causes they care about most. What you’ll get The annual base salary range for this full-time position is $191,000 to $293,000. This range is an estimate for what Tanium will pay a new hire. The actual annual base salary offered may be adjusted based on a variety of factors, including but not limited to, location, education, skills, training, and experience. In addition to an annual base salary, team members will receive equity awards and a generous benefits package consisting of medical, dental and vision plan, family planning benefits, health savings account, flexible spending account, transportation savings account, 401(k) retirement savings plan with company match, life, accident and disability co