Senior Product Security Consultant

Zappsec•Tewksbury, MA

About The Position

Seeking a US Person with 10+ years of hands-on product-security testing experience. This role involves technical product security assessment activities across the customer product ecosystem, including hardware and device penetration testing, firmware extraction and binary analysis, exploitability validation, secure update mechanism review, and embedded security assessment. The role will cover UART/JTAG/SWD/USB, firmware extraction, binary analysis, reverse engineering, secure boot, signing, updates, rollback, authentication, encryption, secure defaults, logging, deletion and residual data. Testing may extend to BLE, Wi-Fi, web/API, companion applications and proprietary protocols, including controlled fuzzing. The consultant will work under formal safety and restoration controls, validate exploitability and compensating controls, assess blast radius and containment, eliminate false positives, produce reproducible evidence and remediation guidance, and perform retesting.

Requirements

Strong hands-on penetration testing and product security assessment experience across embedded systems, connected devices, and firmware security.
Experience with firmware extraction, unpacking, reverse engineering, binary analysis, dynamic analysis, and embedded security testing.
Familiarity with hardware/device attack surfaces, embedded system architectures, Linux-based systems, network protocols, and secure update mechanisms.
Ability to assess secure boot, firmware integrity, firmware trust chain, signing, rollback protection, secure update flows, filesystem security, bootloader security, and binary-level risks.
Experience testing authentication, authorization, encryption, TLS/certificates, cryptographic keys, hardware-backed key storage, device identity, secure elements, TPM, and TEE concepts.
Experience with exploitability validation, attack path analysis, protocol fuzzing, wireless security testing, and interface testing across UART, JTAG, SWD, USB, BLE, Wi-Fi, and proprietary protocols.
Hands-on experience using security testing and analysis tools such as Binwalk, Ghidra, IDA Pro, Radare2, OpenSSL, Burp Suite, Nmap, Wireshark, testssl.sh, Trivy, GDB, Frida, firmware emulators, protocol fuzzers, logic analyzers, and approved debug-interface tooling.
7-10 years in product security testing including device-level penetration testing
10+ years in Product Security Testing firmware extraction, unpacking, and binary analysis

Nice To Haves

Experience participating in CRA or regulated product security, or compliance-driven cybersecurity assessments
Experience participating in engagement related to export-controlled environments
Embedded or IoT security experience preferred
GXPN (Top Choice) certification
OSEP certification
Completed SANS training SEC556 (IoT Pen Testing)

Responsibilities

Perform hardware and device-level penetration testing
Conduct firmware extraction, unpacking, and binary analysis
Assess secure boot, firmware integrity, rollback protection, and update mechanisms
Evaluate exposed interfaces (USB, network, wireless, serial/debug, administrative services)
Validate authentication, authorization, encryption, and secure configuration controls
Conduct exploitability validation, attack path analysis, and privilege escalation testing
Analyse attack surfaces to identify material security weaknesses across device components
Perform resilience testing and evaluate effectiveness of security controls
Test BLE, Wi-Fi, web/API, companion applications and proprietary protocols, including controlled fuzzing
Work with the Security architect to identify the test cases and the required open-source testing tools to perform the required IEC 62443 and EU CRA controls.
Lead the hardware security testing, authentication, authorization, encryption, and secure configuration controls and other active tools-based testing part of the engagement.