Principal Security Researcher
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Principal Security Researcher securing GitLab’s AI-powered DevSecOps platform. Leading vulnerability research, AI attack analysis, penetration testing, and remediation across GitLab’s codebase.
Responsibilities:
- Conduct and lead security research projects across multiple functional areas
- Identify novel, systemic, and chained vulnerabilities in GitLab
- Validate security vulnerabilities through hands-on testing and develop proof-of-concept exploits
- Assess emerging industry vulnerability classes against the GitLab codebase and drive class-level remediation
- Lead security research into GitLab's AI and agentic surfaces and define security requirements
- Build and direct tooling and automation for security research, including agent-assisted vulnerability discovery
- Research the security posture of open source tools and dependencies integrated with GitLab
- Report findings to maintainers and track mitigation under responsible disclosure guidelines
- Solve technical problems of the highest scope, complexity, and ambiguity
- Help shape the team and sub-department roadmap
- Lead integration of security research results into engineering and business functions
- Teach, mentor, and advise domain experts and individual contributors
- Share knowledge and novel vulnerability types with the security community
- Report to the Senior Manager of Application Security
Requirements:
- 10+ years of experience in security research, penetration testing, or offensive security roles
- Strong ability in discovering and exploiting vulnerabilities in large codebase and complex systems
- Proficiency in two or more of Ruby, Go, Python, TypeScript, or Rust
- Ability to read and analyze code across multiple languages and codebases
- Strong knowledge of AI frameworks
- Strong understanding of AI attack vectors including prompt injection, agent manipulation, and workflow exploitation
- At ease in establishing and driving complex remediation initiatives involving cross-functional teams
- Excellent written communication skills with an ability to articulate complex topics in a clear and concise manner
- Ability to translate complex technical findings into clear risk assessments and remediation recommendations
- Strong analytical and problem-solving skills with creative thinking about attack scenarios
- Nice to Have: Published security research or conference presentations; background in software engineering with distributed systems expertise; experience with GitLab or similar DevSecOps platforms
Benefits:
- Benefits to support your health, finances, and well-being
- Flexible Paid Time Off
- Team Member Resource Groups
- Equity Compensation & Employee Stock Purchase Plan
- Growth and Development Fund
- Parental Leave
Similar Jobs
Cybersecurity Architect
Cybersecurity Architect leading RMF, risk mitigation, and ATO efforts for DoD Zero Trust systems. GDIT delivers technology and mission services to U.S. government, defense, and intelligence agencies.
Senior Security Agent / AI Red Team Engineer
AI red-team engineer attacking PGTEK agents and converting findings into durable controls. Supporting secure Federal and DoD systems through threat modeling, remediation, and authorization activities.
Software Security Lead
Software Security Lead securing Cisco’s enterprise IT and Operations platforms across applications, cloud, identity, data, and AI. Leading threat modeling, architecture reviews, risk remediation, and security metrics.
Staff Security Researcher
Staff Security Researcher conducting vulnerability research and penetration testing for GitLab’s AI-powered DevSecOps platform. Developing attack methodologies, tooling, and security improvements.
Software Security Lead
Cisco software security lead securing AI-enabled enterprise platforms and applications. Leading threat modeling, architecture reviews, risk remediation, and portfolio security metrics.
Application Security Remediation Engineer
Application Security Remediation Engineer remediating Wiz findings across enterprise applications for Arctiq’s technology services clients. Securing code, dependencies, containers, and DevSecOps delivery pipelines.
Senior Engineer, Information Security Architect
Information Security Architect engineering secure platforms and enterprise designs for Lovesac, a fast-growing adaptable furniture company. Leading Zero Trust architecture, security tooling, integrations, and governance.
Senior Security Engineer – Identity and Access Management
Senior IAM Security Engineer designing automated identity controls for Providence, a comprehensive healthcare organization. Modernizing hybrid identity infrastructure toward Zero Trust and cloud security.
Cybersecurity Engineer
Cybersecurity Engineer managing endpoint, identity, cloud, and enterprise security for Accela’s cloud-based government software platform. Supporting vulnerability management, compliance controls, investigations, and security automation.
Cyber Security Engineer
Cyber Security Engineer securing Emprise Bank through vulnerability management, identity access, DLP, vendor reviews, and incident response. Providing tier 3 security support and leading IT Security projects.
VP of IT and Cybersecurity
VP leading IT and cybersecurity strategy, reliability, and risk for Tidal Financial Group’s ETF investment technology platform. Advising executives and managing teams, vendors, incidents, and compliance.
IT Security Specialist
IT Security Specialist protecting Fika’s rural infrastructure nonprofit systems from cyber threats. Securing networks, cloud environments, endpoints, and compliance operations across global program offices.
Senior Digital Forensics and Incident Response Engineer
Senior DFIR Engineer leading identity-theft investigations and automation for Humana, a U.S. healthcare and insurance company. Supporting enterprise cyber investigations, incident response, and forensic capability development.
Senior Offensive Security Engineer
Senior offensive security engineer testing First Advantage’s products, cloud infrastructure, networks, and people. Building adversary simulations and driving remediation to reduce enterprise risk.
Security Engineer
Security Engineer securing PIP Labs’ DATA Network infrastructure, cloud environment, endpoints, and internal systems. Automating security operations and protecting sensitive real-world data used for AI training.
Senior macOS Engineer – Workforce AI Security
Senior macOS Engineer owning native endpoint security agents for Check Point’s enterprise AI platform. Building TLS interception, proxy controls, and data-loss protections across managed Macs.
IT/OT Security Architect
IT/OT Security Architect designing secure IT, OT, cloud, and AI architectures for Berlin-based cybersecurity consultancy APT-ONE. Translating regulatory requirements into controls and advising CISOs and technical leaders.
Security Captain – Rotational
Security Captain supervising personnel and protective operations at NMS’s remote Alpine oil field. Managing incidents, emergency response, client coordination, and rotational camp operations.
Senior Security Engineer, Threat & Offensive Security
Senior Security Engineer strengthening offensive security and threat operations. Protecting Valon’s AI-native mortgage servicing platform for regulated finance.
Global Security Architect
Security Architect designing Microsoft 365, Azure, and hybrid security architectures for base-IT’s SME and enterprise customers. Leading security roadmaps, workshops, migrations, and technical standards.