Design Engineer
Onsite role in San Francisco. Salary range: $220–300K plus benefits plus equity.
About the role
We are an AI-powered cybersecurity platform that protects SMBs from account takeovers, specifically targeting Microsoft 365 environments. Business Email Compromise (BEC) attacks have exploded, rising 141% year-over-year, and have become the #1 way businesses lose money to cyberattacks. Petra detects more attacks and responds faster than any competitor on the market while triggering fewer false positives.
We are looking for a Senior Software Engineer with 3–8 years of experience to join a small, high-output team building customer-facing product at one of the fastest-growing cybersecurity startups in the country. You'll be front-end leaning, shipping delightful software that real customers use daily, at a company that's gone from zero to mid-seven-figures ARR in under a year with only four engineers.
Responsibilities
- Own and ship large, customer-facing product features end-to-end — from design through production
- Build beautiful, high-quality front-end experiences in React and TypeScript for MSPs and security teams
- Drive product quality by understanding what customers care about and translating that into shipped software
- Architect scalable solutions as the platform grows from 10K+ businesses to 10x that
- Help build a new product skew for attack prevention, leveraging our unique data moat
Requirements
- 3–10 years of experience in full-stack software engineering (front-end leaning)
- Shipped customer-facing product features with real users
- Experience at a product-focused company with strong design bar
- Startup experience with large ownership scope (Nice-to-have)
- Built AI/ML-powered features shipped to real customers in production (Nice-to-have)
- CS degree from U.S. university (top-30 CS program) or design degree with strong technical skills
- Must be in SF or willing to relocate; in-office 5 days/week
- No visa sponsorship — must be authorized to work in US
Skills
- React, TypeScript, and front-end development expertise
- Strong design sense — can show proof of visually polished work (portfolio, live product, recording, or GitHub)
- NestJS or Node.js backend experience (Nice-to-have)