Senior Product Security Engineer, Greenhouse Software
AI/ML
$168.1-210.2k
More information about location
Applicant tracking software and hiring platform
Be an early applicant
Applicant tracking software and hiring platform
501-1000 employees
Be an early applicant
$168.1-210.2k
More information about location
501-1000 employees
Company mission
To help every company become great at hiring.
Role
Who you are
- An Entrepreneurial Problem-Solver - You don’t wait for a ticket to fix a gap. You proactively stay current on AI/ML trends and identify ways to harden our systems before risks manifest
- A Pragmatic Partner - You understand the "need for business speed." You thrive in environments where security enables innovation rather than hindering it, finding creative ways to support development velocity
- An Independent Driver - You demonstrate a high bias for action. You are comfortable completing tasks independently and asynchronously
- A Generous Collaborator - You listen well and work effectively with diverse audiences, from legal counsel during AI Ethics committee reviews to infrastructure engineers feature development, incorporating feedback to build better solutions
- A Clear Communicator - You can translate a complex technical concept into a real-world business impact, whether through technical writing, documentation, or internal presentations
- Practical experience securing model training and inference pipelines (specifically ARC and MLFlow) and securing AI Gateways
- Professional experience as a developer releasing production code. You are proficient with modern workflows like Agile, GitOps, and CI/CD
- Hands-on experience using modern AI development tools (e.g., Cursor, GitHub Copilot, Gemini, or Claude) and interacting with OpenAI/Gemini APIs
- A strong foundation in AWS core services, Kubernetes (K8s), Linux systems, and networking principles
- Expert-level knowledge of web and AI/ML application security topics (e.g. OWASP Web / LLM / Agent)
- Exposure to AI compliance frameworks (e.g. ISO42001)
- Experience with architecture reviews, auth protocols flows related to SAML, OAuth2, and OIDC
- Deep understanding of the AI ecosystem including design principles, threat models, and appropriate tools
- The ability to perform both structured and ad-hoc threat models, providing practical, code-level recommendations that balance security with development speed
- Experience working with Ruby on Rails, a plus
- Your own unique talents! Your background has given you a unique perspective and set of transferable skills that aren't always in alignment with a given role - but those are qualities we value at Greenhouse. If you don't meet 100% of the qualifications outlined above, we still strongly encourage you to apply
What the job involves
- Greenhouse is looking for a Senior Product Security Engineer (AI/ML) to join our team!
- Security at Greenhouse is foundational to our success and is critical for building & maintaining our user and customer trust
- From influencing how we write our software, deploy our infrastructure, and make architectural decisions, Security is a major focus here at Greenhouse
- We are excited to make our program more robust with the addition of a Product Security Engineer with AI security expertise
- You will serve as the team’s Subject Matter Expert (SME) on AI security focussed engagements while contributing to our broader security engineering goals
- You will act as a partner with our engineers to improve security best practices across our agile SDLC, specifically focusing on securing our emerging AI and Machine Learning features
- Act as the primary advisor for securing AI/ML workflows, conducting threat modeling for AI product features, and defining guardrails for Large Language Model (LLM) usage
- Advise and review on agentic AI usage across the R&D department
- Perform security testing and source code review of application and underlying platform for both AI and non-AI systems
- Help upskill the wider security and engineering teams on AI security fundamentals and common threats/vulnerabilities
- Partner with our compliance and legal teams on AI governance decisions and processes
- Act as a security partner, building and maintaining relationships with product and engineering teams to integrate security into the development process
- Embed security principles and controls to achieve a ‘secure by default’ posture
- Secure modern technology stacks that include Kubernetes, Docker, AWS, and CI/CD tooling
- Participate in the security engineering on-call rotation to triage and respond to urgent security alerts and incidents outside of standard business hours when necessary
Application process
- The anticipated closing date for this role is February 2nd, 2026
Our take
Quality candidates are in demand and have options. It's not easy for companies to make the perfect hire. They face recruitment challenges. Firstly, they have to find the right people to interview. And secondly, they have to demonstrate that they have the right job for them.
Greenhouse is a hiring software company that helps companies optimize their recruitment and become great at it. With over 7,500 customers, the company supports some of the world's most successful companies such as Buzzfeed, Booking.com, HubSpot, and J.D. Power.
In January 2021, TPG Growth acquired a majority stake in Greenhouse with an investment of approximately $500M to support their commitment to improve diversity and reduce inequality in the hiring process.
Since the acquisition, Greenhouse has experienced significant growth, increasing revenues from $86.4M in 2021 to $266.3M in 2024. Its fair to say, the company is seeing great success and it doesn't seem to be slowing down anytime soon.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
1% employee growth in 12 months
Company
Funding (last 2 of 8 rounds)
Jul 2018
$50m
SERIES D
Aug 2015
$35m
SERIES C
Total funding: $111.5m
Company HQ
Midtown Manhattan, New York, NY
Leadership
Daniel Chait
(CEO)With a background in Software Engineering, they co-founded Business Velocity and Lab49, where they worked for almost 10 years. In January 2012, they co-founded Greenhouse Software.
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