Upstart

Senior Application Security Engineer

Upstart · United States | Remote

Posted 12 days ago

or apply directly on Upstart's site. We never take the application ourselves.

Is this posting real?

This role has been open
12 days
Upstart's roles stay open a median of 45 days
Reposted
No
Salary listed
No
0% of Upstart's roles list one
Ghost-job risk at Upstart
high
61 stale, 5 reposted of 93 open
Hiring momentum
135 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Upstart's own greenhouse board since 2026-08-03. Full hiring picture for Upstart.

About this role

As a Senior Application Security Engineer at Upstart, you will lead application security projects, collaborating with various teams to identify security risks and implement preventative measures. Your role will involve conducting threat modeling, designing secure coding standards, and improving vulnerability detection through automation. You will also provide technical leadership during security incidents and mentor other engineers to enhance application security practices across the organization.

Our read on this posting3.6out of 5
benefits
5/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Upstart as an employer.

What you need

  • 5+ years of experience in security engineering, software engineering, or a related technical role, including 2+ years focused on application or product security
  • Experience leading security projects involving multiple contributors or partner teams
  • Experience conducting threat modeling and security architecture reviews for complex production applications
  • Experience developing production software or security automation in Java, Python, Ruby, Go, or a similar programming language
  • Experience designing or implementing application security controls across the software development lifecycle, including several of the following: API security, secure coding standards, SAST, DAST, SCA, CI/CD security, or secrets management
  • Experience identifying, validating, prioritizing, and driving remediation of application vulnerabilities

Nice to have

  • Experience building reusable application security guardrails, platforms, or automation adopted by multiple engineering teams
  • Experience securing modern frontend frameworks, REST or GraphQL APIs, microservices, and event-driven architectures
  • Familiarity with security risks affecting AI/ML and GenAI-enabled systems, including prompt injection, insecure tool use, sensitive-data exposure, and model supply-chain risks
  • Experience using risk metrics or program data to prioritize work and measure improvements in application security outcomes
  • Experience mentoring security or software engineers and raising quality through design and code reviews

What you get

  • Competitive compensation, including base pay, bonus opportunities, and annual equity grants that vest quarterly
  • Retirement benefits to help you plan for the future, including a 401(k) or Group Retirement Savings Plan with a company match of $2 for every $1 contributed, up to $15,000 annually (USD in the US, CAD in Canada)
  • Employee Stock Purchase Plan (ESPP) with discounted stock purchase options for eligible employees (US only)
  • Comprehensive health coverage designed to support you and your family, including medical, dental, vision, and wellness resources for US and supplemental health coverage for Canada.
  • Health Savings Account contributions from Upstart for eligible plans (US only)
  • Income protection benefits, including life insurance and disability coverage for added financial security

Worth weighing

  • No specific salary listed, but a range is provided based on location
  • The role requires collaboration with multiple teams, which may involve navigating complex organizational dynamics
  • The position is remote but requires some in-person collaboration, which may not suit all candidates

Summarised from Upstart's posting. Read the full original.

Listed by Upstart on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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