# WebApp Offensive Security Software Engineer at Horizon3.ai

- Company: Horizon3.ai
- What the company does: Horizon3 uses real-world attacks to safely show what attackers can actually do in your environment—so you can fix and prove what matters. Backed by NEA.
- Company website: https://horizon3.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: US, Remote
- Work setup: Remote
- Pay: $196K to $242K base salary per year (USD)
- Posted: 2026-10-30
- Apply by: 2026-12-14
- Apply: https://jobs.ashbyhq.com/horizon3ai/169d3dde-b8e7-4545-a5a4-cd5cc882c101?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/horizon3-ai-webapp-offensive-security-software-engineer/

## About the role

We're looking for a Senior/Staff Offensive Security Software Engineer with extensive web application penetration testing experience and a growing interest in AI-enhanced security techniques. You will have a significant impact on how we deliver value to our customers by designing, developing, and integrating web application penetration testing content into the NodeZero platform. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Experience conducting full scope web application pentests
- Experience with proxy tools like Burp and with browser developer tools
- Proficient in object-oriented programming and test-driven development, with strong analytical and problem-solving skills
- Experience applying AI-assisted development tools to security research and automation tasks
- Curiosity about emerging AI technologies
- Skilled in designing, evaluating, and communicating technical solutions across systems, APIs, algorithms, and data structures

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/horizon3-ai-webapp-offensive-security-software-engineer/