Randstad Digital Americas · 1 day ago
Bluetooth Firmware Software Engineer
St. Petersburg, FL
Contract
Onsite
Mid Level
$45/hr - $52/hrRandstad Digital Americas is seeking a Bluetooth Software/Firmware Design Engineer who is responsible for designing, developing, and verifying wireless solutions for medical devices. The role focuses on implementing Bluetooth Low Energy (BLE) stacks and ensuring compliance with regulatory requirements while optimizing firmware for performance and power consumption.
Information Technology & Services
Responsibilities
Ensure seamless connectivity and data integrity between medical devices and mobile apps
Tune Bluetooth parameters (MTU size, connection intervals) to maximize battery life for wearable medical tech
Work with the manager/PM to provide technical data for RFI/RFQ processes
Write clear, concise technical documentation that meets medical audit standards
Develop and run software verification tests to ensure the Bluetooth link is stable under various interference conditions
Identify and resolve software issues at the unit level to prevent project delays
Qualification
Required
Strong C, C++: Deep experience in embedded firmware development
Bluetooth® Stack Mastery: Specific expertise in BLE (Bluetooth Low Energy), including GATT/GAP profile design, advertising/connection parameter tuning, and throughput optimization
Nordic & Zephyr OS: Hands-on experience with the nRF Connect SDK (NCS) and the Zephyr RTOS kernel
White Box Testing: Rigorous unit and integration testing of the Bluetooth stack logic
Wireless Troubleshooting: Ability to use BLE Sniffers and logic analyzers to debug RF timing and connectivity issues
Electromechanical Troubleshooting: Understanding of how firmware interacts with physical hardware and sensors
Preferred
Bluetooth® Mesh: Experience with multi-node mesh network architectures
Cybersecurity & Bonding: Experience with secure pairing, encryption, and HIPAA-compliant data transmission
Mobile Interoperability: Understanding of BLE behavior across iOS and Android ecosystems
Medical Device Design: Direct experience with IEC 62304 processes and risk management
Python Scripting: For automating Bluetooth range, stress, and regression testing
Application Life Cycle: Use of Git and tools like Azure DevOps or JIRA
Benefits
Medical
Prescription
Dental
Vision
AD&D
Life insurance offerings
Short-term disability
401K plan
Company
Randstad Digital Americas
Randstad Digital is a trusted digital enablement partner that facilitates accelerated transformation for businesses by providing global talent, capacity, and solutions across specialized domains.
Founded in 1984
10001+ employees
Funding
Current Stage
Late StageLeadership Team
Graig Paglieri
CEO, Randstad Digital Americas
Pascal de Hesselle
SVP, Executive Client Partner - Technology, Media & Telecom
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