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Senior to Staff Application Security Engineer / Y Combinator Startup

Motion Recruitment Partners, LLCUnited States🇺🇸United StatesPosted Jul 29, 2026

Why This Role Stands Out

This is an exceptional opportunity to build an application security program from the ground up at a rapidly growing Y Combinator startup, offering significant impact and career growth. You'll thrive here if you have a strong software development background and experience establishing security initiatives, with the flexibility of a hybrid work model. Apply now to join a dynamic team and shape the future of secure GPU cloud computing.

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
United States
Posted
7 weeks ago

Job Description

A GPU Cloud company startup is looking to bring on a hands on a Senior to Staff Application Security Engineer to build out their application security program from the ground up. You'll work on their core platform, finding vulnerabilities in APIs, web apps, and internal services before attackers do. You'll run and build SAST/DAST pipelines, manage bug bounty program, and sit on new feature designs early to ensure security is built in, not added on. Ideal candidates have previous experience in startup industries, and ideally have worked at a Y Combinator backed startup. You'll work in a GPU computing environment so experience with systems level security and/or Linux kernel security is a huge plus.

Required Skills & Experience
  • 8+ years of experience as an appsec or product security or devsecops
  • Deep software development background
  • Experience with SCA, DAST, SAST, and code reviews
  • Strong communication skills
  • Previous experience building out app sec programs from the ground up
  • Applicants must be currently authorized to work in the US on a full-time basis now and in the future.

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