Senior Firmware Engineer - Connectivity & BLE (ARM C++)

Global Connect Technologies; Milwaukee (WI); On-site; USD 110,000 - 150,000; Full time

Job summary

Global Connect Technologies is seeking a Senior Firmware Engineer – Connectivity to design, develop, and validate wireless firmware for embedded products in the ONE-KEY ecosystem. You will work on BLE, ARM Cortex microcontrollers, and bare-metal firmware to deliver production-ready connectivity solutions.

You will collaborate with hardware, cloud, and software teams, participate in Agile processes, and own firmware deliverables from concept through validation and handoff, using Git and Azure

Qualifications

• Bachelor’s degree in Computer Engineering, Computer Science, Electrical Engineering, or a related field.
• 5+ years of embedded firmware development experience using C++.
• Strong hands‑on experience with 32‑bit ARM Cortex microcontrollers.
• Proven experience developing and debugging production bare‑metal firmware.
• Strong Bluetooth Low Energy (BLE) experience, including firmware development, integration, debugging, and troubleshooting.
• Experience with interrupt handling, timing‑critical operations, peripheral drivers, and hardware interfaces.
• Proficiency in embedded debugging using JTAG/SWD and hardware diagnostic tools.
• Experience with Git, Azure DevOps, and CI/CD workflows.
• Strong troubleshooting, problem‑solving, communication, and cross‑functional collaboration skills.

Responsibilities

• Develop embedded C++ firmware for wireless connectivity on 32-bit ARM Cortex microcontrollers using bare-metal architecture.
• Implement, integrate, debug, and troubleshoot Bluetooth Low Energy (BLE) functionality using wireless modules, SoCs, and vendor SDKs.
• Diagnose complex connectivity issues involving application firmware, drivers, BSP, protocol stacks, timing, and hardware interfaces.
• Translate product requirements into firmware specifications, design documents, test plans, and implementation strategies.
• Perform unit, functional, and integration testing, and support test automation within CI/CD pipelines.
• Debug firmware and hardware interactions using JTAG/SWD debuggers, oscilloscopes, logic analyzers, and spectrum or protocol analyzers.
• Collaborate with hardware, mechanical, cloud, application, product, and reliability teams to resolve technical issues and deliver production-ready firmware.
• Work with component suppliers on hardware integration, design decisions, and root-cause analysis.
• Use Git and Azure DevOps for source control, work-item tracking, code reviews, and CI/CD activities.
• Own firmware deliverables from investigation and implementation through validation, documentation, and production handoff.
• Participate in Agile development practices, provide regular progress updates, and proactively communicate risks and project status.

Skills

Embedded C++

BLE

ARM Cortex

Bare-Metal Firmware

Git

Azure DevOps

CI/CD

Debugging

Cross-functional collaboration

Education

Bachelor's degree in related field

Tools

Git

Azure DevOps

CI/CD workflows

JTAG/SWD

Oscilloscopes

Job description

Global Connect Technologies is seeking a Senior Firmware Engineer – Connectivity to design, develop, and validate wireless firmware for embedded products in the ONE-KEY ecosystem. You will work on BLE, ARM Cortex microcontrollers, and bare-metal firmware to deliver production-ready connectivity solutions.

You will collaborate with hardware, cloud, and software teams, participate in Agile processes, and own firmware deliverables from concept through validation and handoff, using Git and Azure