Senior/Staff Security Engineer (AI)

TL;DR

Senior/Staff Security Engineer (AI): Securing a high-scale voice interface and protecting confidential user data with an accent on product security and threat modeling. Focus on architecting defenses against DDoS and breaches within agentic AI systems.

Location: Must be based in the US; On-site in San Francisco or Remote (US). Relocation reimbursement provided for moving to San Francisco.

Salary: $220,000 – $350,000 + Equity

Company

Wispr Flow is building a ubiquitous voice interface that turns speech into polished text, scaling rapidly from $2M to $50M ARR in under a year.

What you will do

• Own product security end-to-end, prioritizing threats and architecting defenses.
• Perform security design reviews for new surfaces early in the development process.
• Build security directly into the platform to ensure the safe path is the easiest for the team.
• Upskill the engineering team on security practices without creating delivery bottlenecks.

Requirements

• Experience in decompiling code and identifying vulnerabilities.
• Pragmatic approach to security tradeoffs and a strong understanding of threat models.
• Ability to balance security requirements with the user journey.
• Must be based in the US or eligible for relocation to San Francisco.
• Visa sponsorship available for H1B, O1, EB1, L1, STEM + OPT.

Culture & Benefits

• Employee-friendly equity packages including ISOs, RSUs, and early/extended exercise windows.
• 100% covered health, dental, and vision premiums via Anthem Blue Cross Gold PPO.
• 401(k) with up to a 4% company match.
• 16 weeks of paid parental leave.
• Flexible time off, company holidays, and regular team off-sites.
• High-spec equipment including a laptop, monitor, and whisper-friendly microphone.