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Senior Product Security Engineer

Faith Technologies · Menasha, WI · Full time

Posted Jul 22, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you persuaded engineers outside security to change a design for security reasons.

What they are checking: Whether they can influence cross-functional teams, which the posting names as part of the role.

How do you keep security governance practical so it helps product teams instead of slowing them down?

What they are checking: Whether they can create governance that teams actually follow.

What would you do

Day-to-day DevSecOps is owned by the Product Security Engineer II. How would you guide that work without micromanaging it?

What they are checking: Whether they can lead at the architecture level and support others without doing their job for them.

A product team wants to ship on schedule, but you have found a serious security gap. What do you do?

What they are checking: Whether they can weigh risk, propose mitigations and escalate clearly under schedule pressure.

How would you handle a vulnerability reported in a product already deployed at customer sites?

What they are checking: Whether they know how to run disclosure, patching and customer communication for field devices.

About the work

You would be the technical authority for IIoT product security across the device lifecycle. How would you build a secure-by-design process for a grid-connected product?

What they are checking: Whether they can set security architecture from early design onward, which is the core of the role.

Which industrial security standards, such as IEC 62443, have you applied to products? How did you use them in practice?

What they are checking: Whether they have hands-on standards experience, not just familiarity with the names.

Walk me through how you would threat model an embedded device that controls power equipment.

What they are checking: Whether they can think through attack paths on hardware and embedded systems with real consequences.

How do you approach secure boot, firmware signing and key management on constrained devices?

What they are checking: Whether they understand hardware-rooted security choices that protect devices in the field.

What special challenges come from OT and IT convergence, and how do you design for them?

What they are checking: Whether they understand the differences in priorities and risks when industrial systems meet IT networks.

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The full job description

As published by Faith Technologies.

You’ve discovered something special. A company that cares. Cares about leading the way in construction, engineering, manufacturing and renewable energy. Cares about redefining how energy is designed, applied and consumed. Cares about thoughtfully growing to meet market demands. And ─ as “one of the Healthiest 100 Workplaces in America” ─ is focused on the mind/body/soul of team members through our Culture of Care . The Senior Product Security Engineer leads the security design and governance of our Industrial Internet of Things ( IIoT ) and Grid connected product portfolio. Reporting to the Cybersecurity Manager , this role is the primary technical authority for IIoT product security across the entire device lifecycle - from early design through field deployment and ongoing operation. This is a deeply technical role focused on hardware and embedded systems security, OT/IT convergence, and the application of industrial security standards. Day-to-day development and DevSecOps execution (code scanning, firmware management, CI/CD pipeline tooling) is owned by the Product Security Engineer II; the Senior Engineer operates at the architectural, standards, and cross-functional leadership level. MINIMUM REQUIREMENTS Education: Bachelor's degree or equivalent experience in Information Security, Electrical Engineering, Computer Engineering, or a related technical field. Experience: 5+ years of dedicated experience in product security, embedded/ IIoT security, or Education: I ndustry-recognized security certifications preferred but not required (e.g., GICSP, CISSP, ISA/IEC 62443 Cybersecurity Certificate Program, CSSA). Experience: OT/ICS security, with at least 2 years in a senior or lead capacity and Travel: 5-10% Work Schedule: Typical work hours are between 7:00 a.m. and 5:00 p.m. Monday – Friday. However, work may be performed at any time on any day of the week to meet business needs. KEY RESPONSIBILITIES IIoT Security Architecture and Standards • Security Architecture: Define and own the security architecture for connected IIoT products, including device identity frameworks (PKI/certificate management), secure boot chains, cryptographic key management, and hardware root of trust. • Industrial Standards Leadership: Establish and enforce security design requirements based on applicable standards and frameworks (e.g., IEC 62443, UL 2900, NERC CIP, NIST SP 800-82, NIST CSF) across product lines. • OT/IT Convergence: Design security boundaries and communication controls for environments where operational technology (OT) interfaces with enterprise IT systems, ensuring defense-in-depth across both layers. • Protocol and Interface Security: Evaluate and provide security guidance on industrial communication protocols used in energy and grid applications (e.g., IEC 61850, DNP3, Modbus, CAN bus, GOOSE/Sampled Values). Threat Modeling and Risk Management • Lead Threat Modeling: Conduct and lead structured threat modeling exercises (e.g., STRIDE, PASTA) for new IIoT product initiatives and significant feature changes, translating identified risks into actionable design controls. • Risk Prioritization: Assess and prioritize security risks across fielded and in-development device portfolios based on exploitability, potential impact to grid operations or physical safety, and business criticality. • Vulnerability Coordination: Serve as the technical lead for coordinating responses to security vulnerabilities identified in fielded IIoT products, including working with Product, Engineering, and customers on disclosure and remediation timelines. • Supply Chain Security: Evaluate hardware component and third-party software supply chain risks, providing security requirements for procurement and vendor selection of embedded components. Governance, Consultation, and Leadership • Security SME: Act as the primary subject matter expert for IIoT and OT product security, providing high-context technical consultation to product architects, engineering leads, and executive leadership. • Security Standards Ownership: Own the product security standards, policies, and design review processes applicable to IIoT devices, ensuring teams have clear, actionable requirements before development begins. • Cross-Functional Collaboration: Partner with Hardware, Firmware, Systems Engineering, and Product Management teams to embed security requirements early in the product development process without creating unnecessary friction. • Incident Leadership: Serve as the senior technical contributor during high-severity security incidents involving fielded IIoT products, leading root cause analysis and driving architectural improvements to prevent recurrence. • Public Disclosure and Advisory: Coordinate with Threat Intelligence and engineering teams to document identified vulnerabilities and assist in drafting CVEs and public security advisories following successful remediation. Technical Components • IIoT and Embedded Security: Demonstrated expertise in securing embedded and IIoT devices, including secure boot, hardware security modules (HSMs), trusted execution environments (TEEs), and firmware security architecture. • Industrial Protocols: Working knowledge of industrial communication protocols common in energy and grid applications (IEC 61850, DNP3, Modbus, CAN bus) and their associated security considerations. • OT/ICS Security: Strong understanding of OT and ICS security principles, network segmentation strategies (e.g., Purdue Model, IEC 62443 zones and conduits), and the unique threat landscape of connected energy infrastructure. • PKI and Cryptography: Solid understanding of public key infrastructure, certificate lifecycle management for device identity, and applied cryptography as it relates to constrained embedded environments. • Security Standards: Deep familiarity with IEC 62443, UL 2900, NERC CIP, and NIST SP 800-82; ability to translate standards requirements into concrete, enforceable product security controls. • Threat Modeling: Proven experience leading structured threat modeling sessions for hardware/firmware products in OT or energy environments. • Performs other related duties as required and assigned. The job description and responsibilities described are intended to provide guidelines for job expectations and the employee's ability to perform the position described. It is not intended to be construed as an exhaustive list of all functions, responsibilities, skills, and abilities. Additional functions and requirements may be assigned by supervisors as deemed appropriate. How Does FTI Give YOU the Chance to Thrive? If you’re energized by new challenges, FTI provides you with many opportunities. Joining FTI opens doors to redefine what’s possible for your future. Once you’re a team member, you’re supported and provided with the knowledge and resources to achieve your career goals with FTI. You’re officially in the driver’s seat of your career, and FTI’s career development and continued education programs give you opportunities to position yourself for success. FTI is a “merit to the core” organization. We recognize and reward top performers, offering competitive, merit-based compensation, career path development and a flexible and robust benefits package. Benefits are the Game-Changer We provide industry-leading benefits as an investment in the lives of team members and their families. You’re invited to review the full list of FTI benefits available to regular/full-time team members. Start here. Grow here. Succeed here. If you’re ready to learn more about your career with FTI, apply today! Faith Technologies, Inc. is an Equal Opportunity Employer – veterans/disabled. Employment is contingent upon successfully passing a background and drug test

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