Penetration Tester – IoT & Embedded Devices

Description

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.

Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future!

This role at Enphase requires working onsite 3 days a week, with plans to transition back to a full 5 day in office schedule over time.

About the role:

As a Penetration Tester – IoT & Embedded Devices, you will be part of a cutting-edge cybersecurity team focused on securing our connected energy ecosystem, including IQ Gateway, IQ Microinverters, IQ Batteries, and EV Chargers deployed across 4M+ homes in 150+ countries. These devices rely on bidirectional powerline communication, Wi-Fi and cellular networking, and cloud-managed over-the-air (OTA) firmware updates.

You will lead offensive security testing across hardware, firmware, and software layers, while partnering closely with the CISO’s office to drive vulnerability lifecycle management from discovery to remediation.

What you will be doing:

Perform hardware security testing: PCB teardown, component identification, bus sniffing and injection on UART/SPI/I²C, and logic-analyzer/oscilloscope signal capture
Reverse-engineer firmware — dump SPI/eMMC flash, unpack with Binwalk, perform static analysis in Ghidra/IDA, and emulate with QEMU to surface logic flaws and hardcoded secrets
Capture, analyze, and fuzz RF/wireless traffic with SDR tooling (HackRF/RTL-SDR) across BLE, Wi-Fi, sub-GHz, and cellular protocols
Test cloud APIs and backend services (REST, gRPC, MQTT) for authentication bypass, IDOR, injection, and broken access control
Lead end-to-end red-team exercises that chain device, network, and cloud footholds — lateral movement, privilege escalation, and persistence on embedded Linux/ARM platforms
Document findings with reproducible PoCs, CVSS scoring, and remediation guidance, and retest fixes through closure
Collaborate with internal security and engineering teams to strengthen product security
Ensure compliance with industry security standards and best practices
Perform JTAG/SWD debug-port attacks to extract, analyze, and modify device firmware
Assess the security of Wi-Fi, cellular, and bidirectional powerline (PLC) communication interfaces
Evaluate cloud-managed OTA firmware update mechanisms for integrity, authentication, and rollback protection


What you bring:

BE/BTech/MS/MTech in Computer Science, Electrical Engineering, or a related field.
A minimum of 6+ years of experience in IoT/embedded penetration testing
Strong expertise in hardware and bus-level analysis (UART, SPI, I²C, JTAG/SWD), logic analyzers, and an understanding of fault-injection/glitching and side-channel techniques
Hands-on firmware reverse engineering and binary analysis across ARM and MIPS, including bootloader and RTOS internals
Proficiency with Ghidra/IDA Pro, Binwalk, QEMU, Burp Suite, and SDR/logic-analyzer hardware tools
Experience in RF/wireless fuzzing and API exploitation
Strong understanding of embedded Linux systems and ARM architectures
Knowledge of CVE disclosure processes and OWASP IoT Top 10
Familiarity with standards such as IEC 62443 and EU Cyber Resilience Act
Excellent analytical, problem-solving, and communication skills
Familiarity with Wi-Fi/cellular networking and bidirectional powerline (PLC) communication security
Experience with cloud-managed OTA update pipelines and full-stack red-team engagements spanning device, network, and cloud layers
Proficiency in Python and C/C++ for automation, tooling, and exploit development


Nice to have:

Published CVEs, security advisories, or competitive Capture-the-Flag (CTF) experience
Exploit development and custom tooling for embedded and ARM targets
Relevant certifications such as OSCP, OSCE, GXPN, or GIAC GPEN


What we offer:

Competitive compensation and comprehensive employee benefits
Opportunity to work on securing large-scale global IoT ecosystems
Exposure to cutting-edge technologies in embedded security
Collaborative and innovation-driven work environment
Career growth and development opportunities


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