Senior Security Engineer I

Responsibilities

• Drive the vulnerability management lifecycle from automated SAST/DAST identification through manual analysis and remediation tracking.
• Mentor junior engineers and serve as a technical resource for resolving workflow and development obstacles.
• Conduct source code reviews of internal and third-party software.
• Write production-quality security code and libraries for engineering teams.
• Build risk assessment frameworks and create action plans for managing identified risks.
• Partner with engineering teams on vulnerability remediation and migrations.
• Deliver in-depth software security presentations to engineering teams.
• Architect, build, test, and deploy application security systems and processes.
• Integrate security reviews into AI-driven and AI agent workflows.
• Comply with applicable laws and regulations and perform other assigned duties.

Requirements

• At least 4 years of combined career experience in software development and information security.
• Experience across all areas of the Secure Software Development Life Cycle.
• Strong experience building moderate-to-complex standalone systems or major new features.
• Hands-on experience using AI models and integrating them with internal systems through protocols such as the Model Context Protocol.
• Bachelor’s degree or four years of equivalent experience is a bonus qualification.
• Experience in or understanding of healthcare or health insurance security challenges is a bonus qualification.

Benefits

• Hybrid schedule in Oscar’s Los Angeles office with 3 in-office days per week, including required Thursdays.
• Medical, dental, and vision benefits.
• 11 paid holidays, paid sick time, paid parental leave, and paid wellness time and reimbursements.
• 401(k) plan participation and life and disability insurance.
• Unlimited vacation program, employee equity grants, and annual performance bonuses.