Embedded Software Engineer

Hot Job

Embedded Software Engineer

Apollo Professional Solutions

Indianapolis, IN 46204

Pay Rate: $75.54/Hr.

Posted 09/10/2026

Job ID: 77542

Job Description

Embedded Software Engineer-MST

Indianapolis IN

Contract - 1st Shift, 5/40

Schedule: Onsite (Monday through Friday, 9:00 AM - 5:00 PM EST)

Pay Rate: $75.54/Hr.

Benefits: medical, dental, vision, 401k

Required Qualifications: Embedded Software Engineer-MST

• Bachelors degree.
• Strong experience with:
• Embedded C (mandatory)
• Bare-metal and RTOS-based firmware
• ARM Cortex-M microcontrollers
• Interrupt-driven architectures
• DMA, timers, watchdogs, GPIO, UART, SPI, and I2C
• Bootloaders and firmware update systems
• Debugging with J-Link, SWD, and GDB
• Low-power firmware design

Experience working on wireless communication technologies such as RF, Sub-GHz, or Z-Wave. Ability to work independently. Clear communication skills. Ability to document decisions and collaborate with hardware engineers. Position Summary: Embedded Software Engineer-MST

• Design, develop, and maintain software that operates directly on hardware systems.
• Work closely with hardware engineers to ensure seamless integration and optimal performance of embedded systems.

Responsibilities: Embedded Software Engineer-MST

• Develop embedded firmware using Embedded C.
• Design and support bare-metal and RTOS-based firmware.
• Develop software for ARM Cortex-M microcontrollers.
• Work with interrupt-driven architectures and embedded peripherals including DMA, timers, watchdogs, GPIO, UART, SPI, and I2C.
• Implement and maintain bootloaders and firmware update systems.
• Debug firmware using J-Link, SWD, and GDB tools.
• Develop low-power firmware solutions.
• Support wireless communication technologies, including RF, Sub-GHz, and Z-Wave.
• Interface with hardware engineers and document technical decisions.

Preferred Qualifications: Embedded Software Engineer-MS

• Experience with:
• Z-Wave
• Proprietary Sub-GHz protocols
• Mesh networking
• Low-power wireless sensor networks
• RF coexistence
• OTA firmware updates over wireless

Experience with:

• Silicon Labs wireless SDKs
• Modifying MAC/PHY behavior
• Implementing custom protocol layers

Experience with:

• Simplicity Studio
• Silicon Labs Gecko SDK
• Silicon Labs wireless stack APIs
• Z-Wave 700/800 series
• SmartStart
• S2 security
• OTA DFU mechanisms
• Zniffer packet analysis
• PTI packet tracing

Security experience with:

• Secure boot
• Firmware signing
• Key provisioning
• Encrypted OTA updates
• Secure pairing/authentication
• Replay protection
• Secure storage of credentials

Experience with:

• Modular firmware architecture
• State-machine design
• Event-driven systems
• Git workflows
• CI/CD for firmware
• Automated testing
• Hardware abstraction layers
• Documentation discipline

RF engineering knowledge including:

• Antenna/layout awareness
• RF sensitivity optimization
• Link-budget analysis
• Sub-GHz propagation behavior
• EMC/EMI troubleshooting
• FCC/CE certification support
• Spectrum analyzer/VNA familiarity

Meet Your Recruiter

Gina Smith

About Indianapolis, IN

Ready to kickstart your career in the vibrant city of Indianapolis, Indiana? Look no further! Explore our diverse job opportunities in this dynamic city that not only boasts a thriving job market but also offers a rich blend of cultural experiences, from catching a race at the iconic Indianapolis Motor Speedway to savoring delicious local eats like breaded pork tenderloins. Discover renowned art galleries like the Indianapolis Museum of Art at Newfields, catch a show at the historic Indiana Repertory Theatre or root for the beloved Indianapolis Colts at Lucas Oil Stadium. With picturesque parks like Eagle Creek Park and a bustling downtown scene, Indianapolis is the perfect place to grow both personally and professionally. Browse our job listings today and unlock endless possibilities in this enchanting city!

Salary Notes: The compensation listed reflects the good-faith rate currently anticipated for this position and may be adjusted, where permitted by law, based on business needs, applicable qualifications and experience.

EEO Statement: Apollo Professional Solutions, Inc. is an equal opportunity employer. We provide equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, marital status, age, national origin, ancestry, disability status, medical condition, pregnancy, genetic information, protected veteran status, gender, sexual orientation, gender identity or expression, or any other status or characteristic protected under federal, state, or local law.

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