Conduct investigations into fraud, abuse, and security incidents within U.S. Government cloud environments.
Compensation
The typical base pay range for this role across the U.S. is USD $102,100 - $202,200 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $133,800 - $219,200 per year.
Responsibilities
Conduct deep-dive investigations into fraud, abuse, and security incidents
Correlate signals across identity, billing, telemetry, and cross-tenant activity
Differentiate fraud vs. compromise vs. legitimate activity
Own or support Sev-1 / Sev-2 incidents
Execute containment actions
Requirements
Master's Degree in Statistics, Mathematics, Computer Science, or related field
Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field
Nice to have: Experience supporting Azure Government, GCC High, or DoD environments
Nice to have: Knowledge of CJIS Security Policy
Nice to have: Background in threat hunting, digital forensics, or advanced incident response
An Information Security Engineer focused on infrastructure security, helping protect Palantir's global endpoints, servers, identity systems, applications, networks, and data flows by reducing attack surface and improving defensive controls.
Responsibilities
Design, implement, and improve security controls across endpoints, servers, identity systems, cloud services, SaaS applications, networks, and data flows.
Drive security posture improvements through hardening standards, configuration management, vulnerability remediation, access controls, monitoring, and ongoing validation.
Assess security risks in new platforms, products, architectures, vendors, and services, and turn findings into practical recommendations and engineering work.
Build and maintain automation for security operations, including configuration validation, drift monitoring, patching, access reviews, policy enforcement, alert triage, and security hygiene.
Partner with Identity, Infrastructure, Engineering, Legal, and other Information Security teams to strengthen security architecture and address recurring risks.
Design and deliver secure, scalable AI solutions across the firm, owning solution design and implementation for assigned initiatives.
Responsibilities
Partner with the Lead AI Engineer to develop and apply reference Engineerures, engineering patterns, and standards for generative AI, machine learning, retrieval, and agentic workflows.
Own technical design and implementation for assigned AI products, including model selection, orchestration, context management, retrieval, tools, memory, APIs, and integrations.
Build and apply evaluation frameworks for quality, groundedness, safety, latency, reliability, and cost, including regression testing and production release checks.
Implement security and governance controls for identity, access, data handling, privacy, secrets, logging, auditability, human oversight, and safe failure in partnership with Cybersecurity and the Lead AI Engineer.
Partner with Data and Platform Engineering to build reusable services and support deployment, CI/CD, MLOps or LLMOps, observability, scaling, and production operations.
Requirements
Bachelor's or advanced degree in Computer Science, Engineering, Machine Learning, or a related field, or equivalent experience.
Build and evolve security data lake, engineering reliable security telemetry, and owning high-fidelity detection engineering end-to-end for a cloud-native AI platform.
Responsibilities
Architect, expand, and maintain our security data lake while designing, testing, and tuning custom detection rules to maximize threat coverage and minimize noise across our cloud-native stack.
Continuously monitor emerging threats and rapidly assess their applicability to Replit's infrastructure, SaaS services, internal tools, and platform components.
Conduct targeted investigations to determine impact, analyze logs, telemetry, and system behaviors using SIEM, metrics, and Cloud Logging and identify gaps in detection/visibility.
Lead research on AI, cybersecurity, and systems security, developing prototypes, experiments, and systems that influence Horizon3’s technology.
Compensation
Base salary range: $174,191 - $249,230 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills. Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.
Responsibilities
Identify, formulate, and drive research problems at the intersection of AI, cybersecurity, and computer systems.
Translate real technical challenges from Horizon3's products, security environments, and research agenda into well-defined research questions.
Independently develop research directions, technical hypotheses, and experimental plans.
Design and lead rigorous experiments in controlled and representative environments.
Build research prototypes and technical systems, or provide sufficient technical direction for others to implement and evaluate them.
Requirements
Bachelor's in Computer Science or equivalent technical experience
Lead end-to-end red team operations and intelligence-led Purple Team exercises across cloud, CI/CD, endpoint, identity, application, and AI environments.
Responsibilities
Lead end-to-end red team operations and intelligence-led Purple Team exercises
Develop command-and-control tooling, implants, payload delivery mechanisms, and operator workflows
Red team AI systems including internal copilots, agentic workflows, and MLOps environments
Use AI tools to improve research, automation, payload development, reporting, and operational planning
Translate red team findings and threat intelligence into clear engineering actions
Lead the cyber defense function for Amex GBT, overseeing incident response, threat intelligence, detection engineering, and data security investigations across a global business.
Compensation
The US national base salary range for this position is from $130,200.00 - $241,800.00
Responsibilities
Lead and grow four connected cyber defense teams
Set vision, roadmap, and budget for cyber defense capabilities
Hire, coach, and develop team leads and analysts
Define and track metrics for incident response and detection
Build relationships with IT, Legal, Privacy, HR, Fraud, and business unit leaders
Requirements
Bachelor's degree in a related field or equivalent experience
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