Staff Firmware Engineer

Cinergy Technology Inc; Austin (TX); On-site; USD 85,000 - 120,000; Full time

Job summary

Cinergy Technology Inc. is seeking an embedded firmware engineer to design and implement software for MCU-based products. You will work on state-machine driven architectures, UI/menu systems, HAL/driver layers, and low-power features in a collaborative hardware-focused team.

Qualifications include strong C/C++ skills, experience with RTOS, debugging, and hardware-in-loop testing. You will contribute to test automation, CI pipelines, and release hygiene while mentoring peers.

Qualifications

• Embedded C/C++ on MCU platforms with HW-adjacent debugging experience.
• Experience with state-machine design and event-driven embedded systems.
• Hands-on work with HAL/driver architectures for microcontrollers.

Responsibilities

• Develop and maintain embedded firmware for MCU-based products.
• Design and implement state machines and UI/menu systems.
• Work with RTOS, bootloaders, and power-management features.

Skills

Embedded C/C++

HW-adjacent debugging

Test discipline

Collaboration

State-pattern FSM

Hierarchical state machines

Event-driven architecture

Embedded UI/menu systems

HAL/driver architecture

RTOS

Watchdogs

Bootloaders

Firmware update

Low-power design

BLE/USB/Serial

GPS/GNSS

Cellular modem

Satellite modem integration

ADC

Calibration

Noise/drift

Data acquisition

Logging

Fault handling

Recovery

Release hygiene

Test automation

Hardware-in-loop

Unit tests

CI

Test & measurement

Industrial instrumentation

Power electronics

Field equipment

Mentoring

Job description

• Embedded C/C++, HW-adjacent debug, shipped product, test discipline, collaboration
• State-pattern FSM, hierarchical state machines, event-driven architecture, embedded UI/menu systems
• HAL / driver architecture for MCU-based products
• RTOS, watchdogs, bootloaders, firmware update, low-power, BLE/USB/serial
• Radio / connectivity (big plus): GPS/GNSS, BLE, cellular modem, satellite modem, RF module integration
• Analog measurement (big plus): ADC, calibration, noise/drift, accuracy, data acquisition, DVM/instrumentation
• Safety/reliability: logging, fault handling, recovery, release hygiene
• Test automation, hardware-in-loop, unit tests, CI for embedded
• Test & measurement, industrial instrumentation, power electronics, field equipment
• Peer mentoring; improving existing codebases without destabilizing delivery