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About the Role

As a Staff Software Engineer on the Security Engineering team, you will be a founding team member responsible for building the security foundations for AI agents. You will lead the development of a platform for agents to perform security work, shaping how agents are sandboxed across product and internal platforms. A central challenge involves enabling models with advanced cybersecurity capabilities to discover and validate vulnerabilities automatically, while protecting sensitive data and systems. You will build execution environments, orchestration, and controls, and help enable the internal use of open-source models with appropriate protections.

Responsibilities

Set the technical direction for secure agent execution, working across Security, Infrastructure, and Product Engineering to turn emerging capabilities and risks into a concrete roadmap.
Design, build, and operate a platform for security agents to discover and validate vulnerabilities within authorized targets and execution boundaries, producing reproducible evidence.
Build reusable controls for agent tool use, code execution, network and filesystem access, resource consumption, and workload lifecycle.
Integrate with identity and secrets platforms to limit access to necessary data and credentials.
Partner with owners of Harvey's product sandbox and internal agent platform to make architectural decisions, implement protections, and integrate shared security capabilities.
Enable internal use of open-source models alongside infrastructure teams, building protections around model serving, agent execution, and sensitive-data handling.
Develop adversarial tests, evaluations, and telemetry that verify containment and expose failures.
Build mechanisms to scope, observe, interrupt, and safely terminate agent activity.
Lead delivery and adoption across teams, mentor engineers, and remain hands-on through implementation and production operation, making clear tradeoffs across security, reliability, latency, and cost.

Requirements

10+ years developing and running production software, including technical leadership on initiatives spanning multiple engineering teams.
Strong software engineering skills in languages such as Go, Rust, Python, or C++.
Practical experience in Linux systems, networking, and containerized infrastructure.
Deep expertise in one or more areas of execution security, such as sandboxing, operating-system isolation, container or virtual-machine security, or platforms that execute untrusted code.
Ability to translate threats into enforceable boundaries and test how those boundaries fail.
Experience building shared platforms, services, or libraries and helping other teams adopt them.
Experience with cloud infrastructure and distributed systems, including observability, failure handling, capacity management, and dependable production operation.
Fluency with AI-assisted engineering and agentic workflows.
Strong communication and technical judgment, with a record of bringing teams to agreement on ambiguous problems and carrying decisions through to delivery.

Skills

Go
Rust
Python
C++
Linux systems
Networking
Containerized infrastructure
Sandboxing
Operating-system isolation
Container security
Virtual-machine security
Platforms that execute untrusted code
Cloud infrastructure
Distributed systems
Observability
Failure handling
Capacity management
AI-assisted engineering
Agentic workflows
MicroVMs
Hypervisors
Firecracker
gVisor
Kata Containers
Namespaces
Seccomp
Landlock
Agent runtimes
Tool-execution frameworks
Automated security-testing platforms
Vulnerability research
Penetration testing
Adversarial evaluation
Self-hosted inference
Open-source models

Experience Level

10+ years developing and running production software
Technical leadership

Salary/Compensations

$231,000 - $346,400 USD

About the Company

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 are 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.

Equal Opportunity

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 accommodations@harvey.ai