Software Engineer, Embedded Software Engineer

Wireless Software/Firmware Engineer (Bluetooth or Zigbee) – Contract-to-Perm, Onsite

An established engineering organization supporting regulated product development is seeking a Wireless Software/Firmware Engineer to design, develop, and verify embedded software running on microcontrollers and embedded processors. This is an on‑site contract role in the St. Petersburg, Florida area with a targeted start in early March 2026.

On‑site in the St. Petersburg, FL area

Core hours
: 9:00 AM to 3:00 PM with flexibility to complete an 8‑hour day around core hours

Target pay rate: $40 - $50/hour

• Design, develop, and verify embedded software/firmware on 8‑bit, 16‑bit, and 32‑bit microcontrollers and embedded processors
• Implement wireless connectivity features using Bluetooth and/or Zigbee stacks
• Define and follow software design principles and development processes in day‑to‑day work
• Create software deliverables across the lifecycle, including requirements, architecture, detailed design, implementation, and unit and integration testing
• Develop and execute effective software verification tests to support stability and performance
• Perform white‑box, requirements‑based testing and document results
• Troubleshoot issues across hardware and software, including electromechanical system‑level problems
• Identify, document, prioritize, and resolve software issues at the unit level
• Write clear technical documentation for work performed
• Partner with cross‑functional teams and work with a manager and/or project manager to support estimation inputs for RFI/RFQ activities
• Provide input on technical risks and mitigation approaches
• Execute sub‑project level tasks with limited day‑to‑day support while coordinating with larger project teams

• Strong C and C++ proficiency in embedded development
• Strong Bluetooth and/or Zigbee Stack Experience
• Experience with Nordic platforms and Sepher OS
• Experience with white‑box, requirements‑based software testing
• Electromechanical design troubleshooting experience in hardware/software systems
• Understanding of design principles and design testing principles
• Experience developing firmware for embedded processors and microcontrollers, including unit and integration testing

• Bluetooth and/or Zigbee mesh networking experience
• Database concepts
• Experience with software planning, requirements, architecture, design, implementation, and integration
• Medical device design experience, including FDA and IEC 62304 processes
• Python scripting for test automation
• Git and ALM tools such as Azure Dev Ops or Jira
• Agile methodology experience

The interview process is expected to move quickly due to an immediate need and an early March start.