Embedded Software Engineer - ADV

Location: Onsite, Monday-Friday (9:00 AM - 5:00 PM)
Employment Type: Contract
Pay Rate: $55-$60/hour

About the role

We are seeking a Senior Embedded Wireless Firmware Engineer to support the design and development of next-generation connected devices and IoT solutions. This role requires expertise in embedded firmware development, wireless communications, real-time operating systems, and secure connected products. The ideal candidate will have hands-on experience developing firmware for low-power wireless devices and collaborating with cross-functional engineering teams to deliver reliable, production-ready solutions.

Responsibilities

• Design, develop, test, and maintain embedded firmware for wireless connected products
• Implement and optimize bare-metal and RTOS-based firmware architectures
• Develop low-power embedded solutions for battery-operated devices
• Design and support bootloaders and firmware update systems
• Develop over-the-air (OTA) firmware update capabilities
• Debug firmware and hardware issues using industry-standard tools
• Collaborate with hardware, RF, systems, and test engineers
• Document software architecture, design decisions, and development processes
• Support product testing, validation, certification, and release activities

Requirements

• Bachelor's Degree in Electrical Engineering, Computer Engineering, Computer Science, or related field preferred

Skills

Embedded Firmware Development

• Strong programming experience in Embedded C
• Experience with ARM Cortex-M microcontrollers
• Expertise with bare-metal and RTOS-based firmware development
• Experience with interrupt-driven architectures
• Strong understanding of:
  • DMA
  • Timers
  • Watchdogs
  • GPIO
  • UARTs
  • SPI
  • I2C
• Experience developing bootloaders and firmware update mechanisms
• Experience using J-Link, SWD, GDB, or similar debugging tools
• Knowledge of low-power firmware design techniques

Wireless Communications

• Experience developing wireless embedded products
• Experience with one or more of the following:
  • Z-Wave
  • Proprietary sub-GHz wireless protocols
  • Mesh networking
  • Low-power wireless sensor networks
• Understanding of RF coexistence concepts
• Experience implementing OTA updates over wireless networks

Security

• Secure boot
• Firmware signing
• Key provisioning
• Encrypted OTA updates
• Secure pairing and authentication
• Replay protection
• Secure credential storage

Preferred Qualifications

Wireless Platform Experience

• Experience with:
  • Silicon Labs EFR32 devices
  • Simplicity Studio
  • Silicon Labs Gecko SDK
  • Silicon Labs wireless stack APIs
  • Z-Wave 700/800 Series
  • SmartStart
  • S2 Security
  • OTA DFU mechanisms
• Wireless packet analysis and tracing tools

RF Engineering Knowledge

• Preferred experience with:
  • Antenna and PCB layout awareness
  • RF sensitivity optimization
  • Link-budget analysis
  • Sub-GHz propagation behavior
  • EMC/EMI troubleshooting
  • FCC/CE certification support
  • Spectrum analyzers and VNAs

Software Engineering Practices

• Modular firmware architectures
• State-machine design
• Event-driven systems
• Hardware abstraction layers
• Git workflows
• CI/CD pipelines
• Automated testing frameworks
• Strong documentation practices

Soft Skills

• Ability to work independently with minimal supervision
• Strong communication and collaboration skills
• Comfortable working closely with hardware and systems engineers
• Strong organizational and documentation habits
• Ability to assess technical risk and communicate realistic timelines
• Proven problem-solving and troubleshooting skills

Ideal Background

• Candidates with experience developing wireless products for smart home, building automation, industrial, infrastructure, HVAC, or IoT environments will be highly regarded
• Experience bringing connected products from concept through production is strongly preferred

Benefits

• Supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans
• Employee Stock Purchase Program (ESPP)
• 401K program with company match after 12 months of tenure
• Health Savings Account (HSA) on the HDHP plan
• SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
• Corporate discount savings program and other discounts
• On-demand training program
• Access to certification prep and a library of technical and leadership courses/books/seminars after 6+ months of tenure
• Certification discounts and perks to associations that include CompTIA and IIBA
• Dedicated customer service team for consultants
• Certified Career Coach

Schedule

• Onsite, Monday-Friday (9:00 AM - 5:00 PM)