Software Engineer

Ascendo Resources; Saint Petersburg (FL); On-site; USD 55,104 - 68,880; Full time

Job summary

An established engineering organization is seeking a Wireless Software/Firmware Engineer in St. Petersburg, Florida. This contract-to-perm position involves designing and developing embedded software for microcontrollers, particularly using Bluetooth and Zigbee technologies. The right candidate will have strong C/C++ skills and experience troubleshooting electromechanical design. The role offers flexibility during core hours and a pay rate of $40 - $50/hour.

Qualifications

• Strong C and C++ proficiency in embedded development.
• Experience with white-box and requirements-based software testing.
• Electromechanical design troubleshooting experience.

Responsibilities

• Design, develop, and verify embedded software/firmware.
• Implement wireless connectivity features using Bluetooth and Zigbee.
• Create software deliverables including requirements and testing.

Skills

C and C++ proficiency

Bluetooth stack experience

Zigbee stack experience

Embedded development skills

Electromechanical troubleshooting

Software testing techniques

Tools

Git

Azure DevOps

Jira

Job description

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.

Work Model and Duration:

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

Compensation:

Target pay rate: $40 - $50/hour

What You Will Do:

• 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

Required Qualifications:

• 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

Preferred Qualifications:

• 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 DevOps or Jira
• Agile methodology experience

Interview Process:

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