Software Engineer (Front-End)

Location - Market Street, San Francisco, CA - (On-site, 5 Days Per Week)

Compensation - $220,000 – $300,000 Base + 0.1–0.3% Equity

Visa - Visa Transfer Available - (No New Visa Sponsorship)

Company Stage - Seed (YC W24, ~$3M Raised)

Industry - Cybersecurity, Identity Security, SaaS, Enterprise Security, Artificial Intelligence, B2B Software

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About the Company

The company is building the future of identity security by protecting businesses against one of the fastest-growing cybersecurity threats: business email compromise and Microsoft account takeovers.

Its platform continuously monitors and protects Microsoft environments through intelligent threat detection, automated prevention, and modern security infrastructure. By leveraging proprietary security datasets, AI-powered detection models, and real-time threat intelligence, the company helps thousands of businesses prevent account compromise before attacks occur.

Founded by former engineers from Abnormal Security, Palo Alto Networks, and Bridgewater Associates, the company has rapidly achieved product-market fit, reaching mid-seven-figure ARR in under a year while serving more than 10,000 businesses and protecting over 1.6 million users. Backed by Y Combinator, the company continues to scale rapidly while maintaining one of the highest revenue-per-engineer ratios in the industry.

As a Software Engineer (Front-End), you'll build beautiful, highly polished customer-facing product experiences across Petra's security platform while working directly with the founders and a small, elite engineering team. You'll own major product initiatives from concept through production, helping define both the product experience and technical architecture.

This is an exceptional opportunity to join one of the fastest-growing cybersecurity startups where engineers have enormous ownership, collaborate closely with leadership, and build products that directly protect businesses from modern cyber threats.

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What You'll Do

• Build and own customer-facing product features across Petra's cybersecurity platform
• Develop polished, high-performance frontend experiences using React, TypeScript, and modern web technologies
• Design intuitive user interfaces that simplify complex security workflows for enterprise customers
• Partner closely with customers to understand workflows and rapidly translate feedback into product improvements
• Build scalable frontend architecture supporting rapid company growth
• Collaborate with backend engineers using NestJS, Node.js, and Python to deliver end-to-end product experiences
• Architect reusable frontend components and maintain high engineering quality across the product
• Help build new AI-powered security products leveraging Petra's proprietary data platform
• Improve application performance, reliability, accessibility, and overall user experience
• Contribute to product direction, technical architecture, and engineering best practices
• Ship high-quality software rapidly while balancing speed, scalability, and maintainability
• Work directly with founders on product strategy and engineering decisions

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Ideal Candidate Background

Experience Requirements

• 3–10 years of software engineering experience with a frontend focus
• Experience building and shipping customer-facing software used in production
• Experience working at product-focused startups or high-growth technology companies
• Experience owning features end-to-end from design through production
• Startup experience with significant ownership and execution responsibility
• Experience building products with measurable customer impact
• Experience working in fast-moving, ambiguous environments
• Experience shipping AI-powered or ML-enabled product features preferred

Technical Requirements

• Strong proficiency with React, TypeScript, and modern frontend engineering
• Strong understanding of frontend architecture, component design, and performance optimization
• Experience building visually polished, production-grade user interfaces
• Experience with NestJS, Node.js, or modern backend development
• Strong engineering fundamentals across software architecture, scalability, and maintainability
• Experience building customer-facing SaaS products
• Experience integrating AI-powered features or modern AI tooling preferred
• Strong understanding of APIs and frontend/backend integration
• Ability to work across frontend, backend, and product engineering when needed
• Portfolio, GitHub, or shipped products demonstrating exceptional design quality strongly preferred

Education

• Bachelor's degree in Computer Science or another technical discipline from a top engineering program preferred
• Top-30 Computer Science university preferred
• Strong design-focused candidates with exceptional engineering ability also considered

Soft Skills

• Strong product intuition
• Excellent communication skills
• High ownership mentality
• Strong customer empathy
• Comfortable operating in ambiguity
• Strong design sense
• Fast learner with high curiosity
• Bias toward execution
• Self-directed and proactive
• Passion for building exceptional customer experiences

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Compensation & Benefits

• Base Salary: $220,000 – $300,000
• Equity Package (0.1–0.3%)
• Fully On-site Engineering Team (San Francisco)
• Healthcare, Dental & Vision Insurance
• 401(k)
• Daily Meals
• Commuter Benefits
• Relocation Assistance Available
• Opportunity to build one of the fastest-growing cybersecurity products
• Direct collaboration with the founders
• Small, elite engineering team with significant ownership
• Opportunity to build AI-powered security products
• High-impact engineering culture with exceptional career growth

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Why Join

This is an opportunity to build one of the fastest-growing cybersecurity platforms in the industry.

You'll work at the intersection of cybersecurity, artificial intelligence, enterprise SaaS, and modern product engineering while building software that protects millions of users from real-world cyber threats.

As a Software Engineer (Front-End), you'll own products from idea through production, collaborate directly with the founders, and build technology that helps define the future of enterprise identity security.