Staff Product Security Engineer

Harvey; California (MO); On-site; USD 220,000 - 330,000; Full time

Job summary

Harvey is seeking a Staff Software Engineer on the Product Security team to help shape security across our AI platform. You’ll own the security roadmap, review critical code, and mentor engineers while collaborating with product and infrastructure teams.

The role emphasizes balancing hands‑on development with leadership, building secure‑by‑default libraries, and driving incident response. Competitive compensation reflects experience and location.

Qualifications

• 8+ years of experience in product security, application security, offensive security, and/or security‑focused software engineering.
• Track record of identifying and remediating software vulnerabilities, demonstrated via CVEs, bug bounties, or prior work.
• Experience leading cross‑functional security initiatives and influencing engineering teams without direct authority.

Responsibilities

• Define and own the product security roadmap, prioritizing initiatives based on risk, business impact, and engineering maturity.
• Establish and evolve security posture across the engineering org with scalable standards.
• Partner with Product Engineering, Infrastructure, and Platform teams to embed secure design principles.
• Own and review security‑critical code across key parts of the product, including authentication and access control.
• Architect secure‑by‑default libraries and tools to make secure paths easy for developers.
• Drive mitigation during security incidents and coordinate cross‑functional responses.
• Mentor engineers and raise security standards through reviews and guidance.

Skills

Product security

Application security

Mentoring engineers

Secure software development

Cross-functional leadership

Tools

Penetration testing

Code review

Security tooling

Job description

Why Harvey

At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come.

This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched.

Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you.

At Harvey, the future of professional services is being written today — and we’re just getting started.

Role Overview

As a Staff Software Engineer on the Product Security team at Harvey, you'll play a critical role in shaping how security is built into our AI platform from the ground up. We store and process our customers’ most sensitive data, and as a result, security is paramount at every stage of our product lifecycle. You'll take ownership of securing critical parts of the product while driving high-leverage security initiatives that raise the bar for the entire engineering org — balancing hands‑on technical work with cross‑functional leadership and mentorship. This is a rare opportunity to define and build a product security program at a company scaling fast.

Our security program is driven by our collective offensive security experience: breaking into systems at other companies (in white‑hat capacities), responding to real security incidents, and learning from other companies’ data breaches. We regularly conduct penetration tests and red team exercises with external security firms. At the same time, we are all software engineers - contributing code daily and approaching security with an engineering‑first mindset.

What You’ll Do

• Define and own the product security roadmap, prioritizing initiatives based on risk, business impact, and engineering org maturity.
• Establish and evolve security posture across the engineering organization, setting standards that scale with the company
• Partner with Product Engineering, Infrastructure, and Platform teams to incorporate secure design principles at every stage of development
• Own and review security‑critical code across key parts of the product, including authentication and access control
• Architect secure‑by‑default libraries and tools that make the secure path the easiest choice for developers
• Drive mitigation strategies during security‑related incident responses, coordinating cross‑functional efforts
• Mentor engineers and raise the security bar across teams through code reviews, design reviews, and technical guidance

What You Have

• 8+ years of experience in product security, application security, offensive security, and/or security‑focused software engineering
• Long track record of identifying and remediating software vulnerabilities, demonstrated through CVEs, bug bounty awards, published research, or prior work experience
• Track record of leading complex cross‑functional security initiatives and delivering measurable improvements, with demonstrated ability to influence engineering teams without direct authority.
• Experience mentoring senior engineers and developing security talent within an engineering organization
• Strong programming skills with demonstrated experience writing high‑quality, production software
• Excellent communication and collaboration skills, particularly when translating security risks into business terms for non‑security stakeholders

Nice to Have

• Experience building security programs or practices at hyper‑growth startups
• Background with cloud environments (Azure, GCP, AWS) and cloud‑native security patterns
• Experience with AI/ML systems and emerging security considerations for LLM‑based applications

Compensation

$220,000 - $330,000

Depending on your location, an Applicant Privacy Notice may apply to you. You can find all of our Applicant Privacy Notices [here].

Harvey is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity / expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.

We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made by emailing [e-mail]