Security Engineer

Palantir builds the world's leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. Palantir's Offensive Security team probes our own products, infrastructure, and cloud environment the way a real attacker would. As an Offensive Security Engineer, you will test internal applications and infrastructure, chain findings into realistic attack paths, and work directly with the engineers responsible for the affected systems to get issues closed. You will help in the design of that tooling and prove it out on live assessments. You will also help to coordinate third-party penetration testing engagements, scoping the work with specialized external firms, keeping assessments focused on the risks that matter, and turning their results into concrete remediation. Conduct hybrid web application penetration tests that combine source code review with runtime exploitation across our products and internal tooling. Perform external network penetration tests against internet-facing infrastructure, identifying exposed services, misconfigurations, and paths to obtain an initial foothold. Perform internal network and Active Directory security assessments, identifying privilege escalation paths, lateral movement opportunities, and misconfigurations. Assess the security of cloud and containerized infrastructure, including identity, network, and workload configurations. Author clear, actionable write-ups and readouts for technical and non-technical stakeholders, translating findings into business risk and prioritized action. What We Value Demonstrated strength in web application penetration testing, with the ability to move fluidly between source code review and runtime testing. Demonstrated strength in external and internal network penetration testing, from enumerating and exploiting internet-facing attack surface to establishing a foothold and expanding access once inside. A builder's instinct: comfortable writing code to automate testing, develop proof-of-concept exploits, or to fill gaps in existing tooling. Working knowledge of how modern software is built and shipped, including CI/CD pipelines and infrastructure-as-code, and an eye for how those systems become attack paths of their own. Working knowledge of cloud, container, and orchestration security principles, and an understanding of how common misconfigurations turn into real attack paths. Working knowledge of chaining identity and cloud attack paths end to end, from Kerberos abuse, delegation misconfigurations, and ADCS/SCCM exploitation in large multi-domain Active Directory forests through to IMDS abuse, IAM privilege escalation, and SSRF-driven pivots into cloud control planes. What We Require 4+ years of professional experience in offensive security, penetration testing, red teaming, or a closely related field. S. security clearance preferred. Proficiency in at least one scripting or programming language (e.g. Python, Go) sufficient to build and adapt your own testing tooling. Demonstrated experience assessing the security of cloud (AWS, Azure, or GCP) and containerized (Docker, Kubernetes) environments. Total compensation for this position may also include Restricted Stock units, sign-on bonus and other potential future incentives. Further note that total compensation for this position will be determined by each individual's relevant qualifications, work experience, skills, and other factors. This estimate excludes the value of any potential sign-on bonus; We work to continuously improve our offerings and listen to our community as we design and update them. Employees (and their eligible dependents) can enroll in medical, dental, and vision insurance as well as voluntary life insurance
• Employees are automatically covered by Palantir's basic life, AD&D and disability insurance
• Relocation assistance
• 10 paid holidays throughout the calendar year
• Supportive leave of absence program including time off for military service and medical events
• Fertility and family building benefits including but not limited to adoption, surrogacy, and preservation
• Stipend to help with expenses that come with a new child
• Paying attention to the needs of our community enables us to optimize our opportunities to grow and helps ensure many pathways to success at Palantir. Promoting health and well-being across all areas of Palantirians' lives is just one of the ways we're investing in our community. In keeping consistent with Palantir's values and culture, we believe employees are "better together" and in-person work affords the opportunity for more creative outcomes. Many teams do offer hybrid options (WFH a day or two a week), allowing our employees to strike the right trade-off for their personal productivity. Based on business need, there are a few roles that allow