Job Description

Overview

We’re hiring a Senior Firmware Engineer (Security‑Focused) to join Flex’s engineering team supporting Xylem/Sensus, a global leader in smart metering technologies for water and energy.

Responsibilities
  • Design and implement embedded security protocols (RSA, ECC, AES, Secure Boot, firmware signing, etc.)
  • Enable and integrate hardware cryptographic accelerators
  • Ensure compliance with security standards such as NIST, FIPS, ISO/IEC 27001
  • Collaborate with cross‑functional teams to define secure system architectures
  • Conduct code reviews, threat modeling, and validation for security‑critical code
  • Support the full firmware development lifecycle from requirements to testing and deployment
Qualifications
  • Bachelor’s degree in Electronics, Embedded Systems, Computer Engineering or related field
  • 5+ years of experience in embedded firmware development using C (bare metal or RTOS)
  • Strong knowledge of public‑key cryptography and secure protocols (TLS/DTLS)
  • Experience with secure microcontrollers/SoCs (e.g. ARM TrustZone, ATECC)
  • Familiarity with firmware validation, debugging tools, and version control systems
  • Bonus: Experience with secure OTA updates, device authentication, and anti‑tampering mechanisms
Benefits
  • Mission‑critical project with global impact in smart infrastructure
  • Collaborate with highly skilled and innovative engineers
  • Professional and supportive environment
  • Opportunities for continuous learning in embedded security and IoT
Seniority Level

Senior

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