Sr. Staff/ Principal Software Engineer - Building Automation Systems

Monolithic Power Systems Inc.; Kirkland (WA); On-site; USD 170,000 - 220,000; Full time

Benefits offered by this job

Health coverage

Stock options

Disability protection

Job summary

Monolithic Power Systems, Inc. in Kirkland, WA is seeking a hands‑on Software Engineer to lead the Building Automation Systems platform, owning the full tech stack—from embedded firmware to cloud services—driving real‑time control, sensor data processing, and scalable software architecture for commercial building power and automation solutions.

You will mentor a world‑class team, collaborate with hardware and product teams, ensure security and reliability, and deliver high‑quality, maintainable

Qualifications

• 10+ years of professional software engineering, 5+ years in senior technical leadership.
• Experience building and scaling multi-layered platforms (software, embedded, cloud, applications).
• Background in embedded systems, real-time firmware, IoT connectivity and device-to-cloud architectures.
• Familiar with modern cloud infrastructure (AWS/Azure) and scalable backend design.
• Experience with building automation protocols (BACnet, Modbus, MQTT, BLE, Zigbee).
• Bachelor’s degree in CS/EE; preferred Master’s degree; Mandarin Chinese preferred.

Responsibilities

• Own end-to-end platform architecture for BAS ecosystem including software, firmware, device communication, cloud services, data pipelines and user apps.
• Provide hands-on technical leadership across embedded, cloud and application layers; oversee firmware for controllers and sensors.
• Ensure CI/CD, automated testing, observability and security; drive reliability and long-term maintainability.
• Collaborate with hardware, product, QA, manufacturing, and field teams; translate requirements into robust software solutions.
• Lead and mentor software engineering teams to deliver high‑reliability systems in a hardware‑plus‑software environment.

Skills

Software engineering

Technical leadership

Embedded systems

Cloud computing

IoT connectivity

Platform architecture

Team mentoring

Education

Bachelor's degree in CS/EE

Master's degree in engineering

Tools

AWS

Azure

BACnet

Modbus

MQTT

BLE

Zigbee

Job description

Monolithic Power Systems, Inc. (MPS) is one of the fastest growing companies in the Semiconductor industry. We are worldwide technical leaders in Integrated Power Semiconductors and Systems Power delivery architectures. At MPS, we cultivate creativity, are passionate about sustainability, and are committed to providing leading-edge products and innovation to our customers. Our portfolio of technology helps power our world ---come join our team and see how YOU can make a difference.

Job Description: MPS is seeking a hands‑on, technically exceptional Software Engineer to support the software strategy, architecture, and execution for our Building Automation Systems product line. The Building Automation Systems (BAS) group develops integrated hardware, firmware, and software platforms that power next‑generation commercial building controls, energy management systems, and intelligent automation technologies. This candidate will own the full tech stack—from software, to embedded firmware and device connectivity to cloud services, data pipelines, and user‑facing applications. This role is ideal for someone who thrives in high‑performance hardware‑plus‑software environments, understands real‑time control systems, and can scale a platform that integrates IoT devices, sensors, gateways, cloud analytics, and building‑level automation workflows. You will shape the software direction of MPS’s Kinexis Smart Building Automation platform, build and mentor a world‑class engineering team, and partner closely with hardware, product, and systems engineering to deliver reliable, secure, and scalable solutions for commercial buildings worldwide.

Key Responsibilities:

• Technical Leadership & Architecture Own the end‑to‑end architecture of the platform ecosystem, including software, embedded firmware, device communication protocols, cloud services, data pipelines, and user applications. Define and enforce architectural standards for reliability, security, scalability, and long‑term maintainability. Drive innovation in real‑time control, sensor fusion, energy optimization algorithms, and building‑level automation logic. Build, mentor, and scale a high‑performing software engineering organization.
• Execution & Delivery Provide hands‑on technical leadership while guiding teams across embedded, cloud, and application layers. Oversee development of mission‑critical firmware for controllers, sensors, and power modules used in building automation systems. Ensure high‑quality engineering delivery through strong CI/CD, automated testing, observability, and performance monitoring practices. Partner with internal and external teams to ensure seamless integration between platform components, modules, and third party interfaces.
• Cross‑Functional Collaboration Work closely with hardware, firmware, systems engineering, product, QA, manufacturing, and field engineering teams. Translate customer requirements, building‑automation standards, and regulatory constraints into robust software solutions. Support key customer engagements, technical deep dives, and strategic partnerships.
• Quality, Security & Compliance Ensure platform reliability, cybersecurity, and data integrity across all BAS software components. Lead efforts around secure boot, encrypted communication, OTA update security, and compliance with building‑automation standards. Drive continuous improvement in system robustness, fault tolerance, and long‑term maintainability.

Qualifications:

• Required 10+ years of professional software engineering experience, including 5+ years in a senior technical leadership role. Proven experience building and scaling complex, multi‑layered platforms (software + embedded + cloud + applications). Strong background in embedded systems, real‑time firmware, IoT connectivity, and device‑to‑cloud architectures. Expertise with modern cloud infrastructure (AWS, Azure, or equivalent) and scalable backend design. Experience with communication protocols common in building automation (BACnet, Modbus, MQTT, BLE, Zigbee, or similar). Demonstrated ability to lead teams, influence cross‑functional stakeholders, and deliver high‑reliability systems. Bachelor’s degree in Computer Science, Electrical Engineering, or related field.
• Preferred Experience in building automation, industrial controls, energy management, or IoT device ecosystems. Familiarity with power electronics, sensor systems, or hardware‑software co‑design. Experience with OTA update systems, device provisioning, and secure embedded architectures. Prior leadership in high‑growth or hardware‑centric technology companies. Master’s degree in engineering or related discipline. Mandrin Chinese proficiency is strongly preferred.

MPS offers a comprehensive benefits package. We provide health care coverage, dental and vision, and life and disability protection. Employees in sales positions may be eligible for our sales incentive bonuses. Employees in certain positions may be eligible for stock compensation. For more information on MPS’ benefits please view our company website at www.monolithicpower.com.

Pay is based on market location and may vary based on factors including experience, skills, education and other job‑related reasons. The target hiring range for this position is $170,000 - $220,000 annually.

#LI-NH1 #LI-SL1

Monolithic Power Systems, Inc. (MPS) is an Equal Opportunity Employer and embraces diversity in our employee population. It is the policy of MPS to provide equal opportunity to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status or special disabled veteran, marital status, pregnancy, genetic information, or any other legally protected status.

Monolithic Power Systems, Inc. (NASDAQ: MPWR) provides small, highly energy efficient, easy‑to‑use power solutions for systems found in industrial applications, telecom infrastructures, cloud computing, automotive, and consumer applications.