Senior Security Engineer (AI Security)

Justworks is looking for an experienced hands-on Senior Security Engineer specializing in AI who will drive and execute the company’s AI strategy and Digital Security’s objectives. Our ideal candidate has extensive experience building and enhancing security solutions of AI systems that defends against unique AI threats. You have hands-on experience evaluating the security of software systems containing AI features and have designed guardrails to protect our data against AI specific threats. You also have a deep understanding of the fundamentals of computing and development/coding with Ruby on Rails JavaScript and/or other languages. An ideal candidate should also have experience in *Nix environment and the use of common cybersecurity tools.

• Research AI treads AI threat landscape AI vulnerabilities and remediations and AI security control advancement.
• Evaluate and assess AI tools and play a critical role in AI system management and governance 
• Evaluate existing AI security controls and identify opportunities to enhance the security posture and software designs
• Collaborate with other security engineers to bring adequate security capabilities to Justworks.
• Provide technical and architectural guidance on AI to product managers product engineers and corporate IT on digital security.
• Work with the team to execute and deliver on our AI  roadmap. This will include but won’t be limited to implementing AI security capabilities in AWS and for corporate.  
• Develop AI security architecture and design standards across Justworks applications and infrastructure to promote a standardized set of security requirements aligning with internal policies.
• Participates in AI R&D projects and major new AI development initiatives to ensure that appropriate security controls are built into systems prior to production cutover.
• Drive process improvement and control implementation projects in coordination with the larger Digital Technology team at Justworks.
• Act as a cross-functional tools and services expert working with engineering and risk teams to build AI security control requirements
• Help Cyber Defense Operations triage incidents as needed especially related to AI  security within company internal networks as well as in our production environments in AWS.
• Be the champion for AI implementation within Digital Security assisting various teams to implement AI models to bring effectiveness and efficiency into security controls security operations and risk management

As a Senior Security Engineer how results are achieved is paramount for your success and ultimately result in our success as an organization. In this role your foundational knowledge skills abilities and personal attributes are anchored in the following:

• Good judgement - the exercise of critical thinking analyzing and assessing problems and implications identifying patterns making connections of underlying issues understanding risks and developing mitigation strategies and taking ownership of the outcome.
• Resourcefulness - taking a can-do approach even in the face of obstacles and constraints by assessing what’s in front of you and effectively and efficiently optimizing what you have whether it's working on something new or thinking about how to do something better.
• Teamwork and communication - putting our collective best together through documentation collaboration relationship-building listening empathy recruiting and evangelism.
• Influence and leadership - fostering a community of knowledge-sharing collaboration mentorship and forward-thinking.
• Skills and knowledge - the capacity to actively learn and apply specific domain knowledge know-how and best practices to continually enhance and improve.

In addition all Justworkers focus on aligning their behaviors to our core values known as COGIS. It stands for:

• Camaraderie - Day to day you can be seen working together toward a higher purpose. You like to have fun. You’re an active listener treat people respectfully and have a strong desire to know and help others.
• Openness - Your default is to be open. You're willing to share information understand other perspectives and consider new possibilities. You’re curious ask open questions and are receptive to thoughts and feedback from others.
• Grit - You demonstrate grit by having the courage to commit and persevere. You’re committed earnest and dive in to get the job done well with a positive attitude.
• Integrity - Simply put do what you say and say what you'll do. You’re honest and forthright have a strong moral compass and strive to match your words with your actions while leading by example. 
• Simplicity - Be like Einstein: “Everything should be made as simple as possible but no simpler.”

• 5+ years experience in information security concepts common technical security controls and security architecture design principles ideally in a SaaS environment
• At least 2+ years of hands-on experience in securing AI systems evaluating AI threats and implementing AI security controls.
• Background as a software engineer security architect or security engineer with experience implementing  security controls in AI environments in AWS.
• Experience in setting up and deploying AI engineering tools like vector databases AI model hosting and monitoring tools and in driving security best practices with AI coding assistants (like Claude Code Cursor etc.).
• Solid experience with Secure-SDLC processes and DevSecOps including secure design threat modeling vulnerability management etc.
• Experience in monitoring AI systems for security threats and vulnerabilities.
• Knowledge of AI/ML technologies frameworks and platforms.
• Knowledge of regulations and industry best practices related to AI security and data privacy.
• Familiar with secure coding practices and security scanning technologies
• Extensive experience in security architecture system design and engineering scalable security solutions in a cloud-native (AWS) environment
• Experience with scripting and automation using languages such as Python Ruby or Javascript.
• Proven track record as a strong communicator
• Strong analytical skills
• Exceptional organizational skills

• Go Ruby on Rails Javascript
• AI frameworks like Langchain/LangGraph AI hosting platforms AI coding assistants (both open source and commercial) and emerging protocol standards like MCP and Agent-to-Agent Protocol.
• Technical experience with DevOps Jira and other agile automation tools
• Ruby on Rails & Javascript
• (Preferred) Security Certifications: CISSP CISM CRISC GIAC CCSP or CEH

The base wage range for this position based in our New York City Office is targeted at $167500.00 to $226300.00 per year.

#LI-Hybrid #LI-CE1

What We Do

Justworks is a cloud-based software platform that takes the busyness out of growing a business and alleviates the unknown. We've combined a simple platform and exceptional 24/7 customer service to help entrepreneurs and businesses grow with confidence by giving them access to corporate-level benefits automated payroll HR tools and compliance support— all in one place.

Why Work With Us

We're building a world in which starting running and joining a growing business is an accessible option for all. If you want to work in an entrepreneurial environment build something meaningful and have fun while doing it join us.

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