Staff Engineer - Embedded Software

Rehlko Company; Wisconsin; Hybrid; USD 99,000 - 126,000; Full time

Job summary

Rehlko is seeking an experienced Staff Engineer - Embedded Software to design, implement, and validate embedded control software for residential and industrial products. You will work closely with hardware, firmware, and product teams to deliver scalable, robust solutions across multiple platforms.

The role requires strong C/C++ expertise, hands-on experience with CAN/RS-485, Ethernet and USB, and a proven track record in testing and debugging embedded systems.

Qualifications

• BS degree in Electrical/Computer Engineering or Computer Engineering; MS preferred.
• 6+ years of embedded software experience.
• Proficient in C/C++ for embedded systems.
• Experience with RS-485, CAN, Ethernet, and USB protocols.
• Experience with unit testing, regression testing, board bring-up, and production test.
• Strong communication skills across diverse audiences.

Responsibilities

• Design, develop, and maintain embedded software for microcontroller-based systems.
• Collaborate with hardware, software, and product teams to define software requirements and architecture.
• Oversee unit, integration, and system validation to ensure reliability.
• Develop networking implementations for Wi‑Fi, Bluetooth, ISM, and LTE communication.
• Lead code reviews and drive process improvements.
• Support hardware troubleshooting and document software design details.
• Mentor junior engineers in core embedded development.

Skills

C/C++

Embedded software

CAN / RS-485 / Modbus

Ethernet / USB

Unit testing

Communication

Education

Bachelor of Science in Electrical/Computer Engineering

Master’s Degree preferred

Tools

Keil debuggers & emulators

Vector CANalyzer/CANape/CANoe

MATLAB/Simulink

Job description

## Staff Engineer - Embedded SoftwareApply: Hybrid: Kohler,WI: Full time: Posted Today: R03440Why Work at RehlkoOur work is guided by our purpose: creating an energy-resilient world for a better future. This purpose embodies the legacy we bring, with more than 100 years as the global leader in energy resilience, delivering solutions critical to sustain and improve life.Our teams have the opportunity to provide a critical resource – energy – that ensures safety, security, and independence for people around the world. Our team members are focused on pushing boundaries, continuing to innovate in an ever-changing landscape, and keeping up with the pace required to create solutions for today’s world demands.Our product range includes engines, generators, power conversion, UPS systems, EV components and electrification solutions, microgrid controls and management, and clean energy solutions that serve a broad spectrum of OEM, residential, industrial, and commercial customers. At Rehlko, you have the freedom to identify, create, and deliver solutions – large and small – that help people and communities thrive in the moments that matter.At Rehlko, our team members are the essential energy that powers our organization’s success. We are committed to fostering a safe and sustainable work environment where safety is everyone’s responsibility. We empower every team member to actively participate in our Zero Is Possible safety culture by encouraging open communication, proactively reporting hazards, following protocols, and suggesting improvements. Join us in creating an energy resilient world for a better future!**What We Offer**At Rehlko, our Total Rewards programs are designed to accelerate growth, energize performance, and support a culture of inclusion at every stage of life and work. We offer total rewards that are easily understood, recognize results, enable career mobility, and reflect our commitment to valuing diverse needs in a fast-moving world. We provide:* Competitive compensation and benefits* Work-life flexibility* Recognition and rewards* Development and career opportunities* A safe and inclusive workplace**Why You Will Love this Job**We are seeking a highly motivated **Embedded Software Engineer** to join our engineering team focused on developing robust, efficient, and scalable software solutions for embedded controls systems. This role involves working closely with hardware engineers, software engineers, and product teams to deliver high-quality software for residential and power products. This role follows a hybrid schedule. **Specific Responsibilities:*** Design, develop, and maintain embedded software for microcontroller-based systems, including C and C++ for QNX, Keil RTX, ZephyrOS and similar operating systems.* Collaborate with cross-functional teams to define software requirements and system architecture.* Oversee unit testing, integration testing, and system validation to ensure software reliability and performance.* Develop networking implementations and application code for wireless processors facilitating Wi-Fi, Bluetooth, ISM, and LTE communication.* Lead code reviews and contribute to continuous improvement of development processes.* Support hardware troubleshooting during product development and testing.* Document software design, architecture, and implementation details.* Use industry-standard software diagnostic tools like emulators, debuggers and oscilloscopes to debug and verify controller software at a unit level. This includes occasional development of custom diagnostic software for specialized features or functions* Technically lead breaking down software scopes of work and developing project timelines and budgets* Mentor less experienced team members in core embedded software development **Requirements:*** Bachelor of Science degree in Electrical and Computer Engineering or Computer Engineering Required, Master’s Degree is preferred* 6+ years of work experience dependent on educational background* Experience owning elements of developing embedded software using layered architectures and embedded operating systems* Proficiency in C and C++ languages including syntax, generally accepted code structure, and object-oriented programming* Hands-on experience with industry-standard communications protocols including RS-485 (Modbus), SAE J1939 CAN, Ethernet and USB* Experience designing software for test including unit-testing, regression testing, board-bring up, and end of line production test. Preference to those who have the following:* Familiarity with CAN analysis tools like Vector CANalyzer, CANape and CANoe* Familiarity with Keil debuggers and emulators for ARM based processors* Familiarity with wireless certification requirements for WiFi, Bluetooth, and ISM and experience navigating the certification process.* Familiarity with MATLAB/Simulink model-based code development and integration* Strong communication skills across diverse audiences* High level of motivation and ability to collaborate effectively in a team and independently to achieve resultsThe Salary range for this position is $98,900.00-$125,600.00.The specific Salary rate offered to a candidate may be influenced by a variety of factors including the candidate’s experience, their education, and the work location.