# Senior Application Security Engineer at Upstart

- Company: Upstart
- What the company does: Explore lending solutions through Upstart, including personal loans, debt consolidation, short-term relief, Cash Line, and HELOC. Check your rate today! Backed by Khosla, Kleiner Perkins and NEA.
- Company website: https://www.upstart.com/
- Type: Startups
- Level: Senior
- Location: United States | Remote
- Work setup: Remote
- Posted: 2026-09-04
- Apply by: 2026-10-19
- Apply: https://careers.upstart.com/jobs?gh_jid=8180422
- Page: https://www.1752.vc/careers/jobs/upstart-senior-application-security-engineer/

## About the role

As a Senior Application Security Engineer at Upstart, you will lead application security projects that reduce risk across our products and engineering ecosystem. You will partner with product, platform, data, infrastructure, and engineering teams to identify security risks, review designs, build preventative controls, and drive complex issues through remediation.

## What they're looking for

- Lead application security projects from planning through implementation, coordinating contributors and dependencies to deliver high-quality outcomes
- Conduct threat modeling and security architecture reviews for complex customer-facing applications, APIs, distributed services, and AI/ML systems
- Design and implement secure-by-default controls across the software development lifecycle, including secure coding standards, API protections, automated testing, CI/CD safeguards, and secrets management
- Partner with engineering teams to identify systemic vulnerabilities, evaluate practical remediation options, and ensure high-risk issues are resolved effectively
- Build services and automation that improve vulnerability detection, prioritization, validation, and prevention while reducing friction for developers
- Assess the security of AI-enabled products and developer workflows, including GenAI integrations, agentic systems, model inputs and outputs, sensitive-data handling, and access boundaries

Tags: Engineering Department