Sr. Staff/ Principal Software Engineer - Building Automation Systems

Monolithic Power Systems•Kirkland, WA

About The Position

Monolithic Power Systems, Inc. (MPS) is seeking a hands-on, technically exceptional Software Engineer to support the software strategy, architecture, and execution for its Building Automation Systems (BAS) product line. The BAS group develops integrated hardware, firmware, and software platforms for commercial building controls, energy management systems, and intelligent automation technologies. The role owns the full technology stack, from embedded firmware and device connectivity through cloud services, data pipelines, and user-facing applications. The engineer will shape the software direction of MPS’s Kinexis Smart Building Automation platform, build and mentor an engineering team, and partner with hardware, product, and systems engineering to deliver reliable, secure, and scalable solutions for commercial buildings worldwide.

Requirements

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 spanning software, embedded systems, cloud, and applications.
Strong background in embedded systems, real-time firmware, IoT connectivity, and device-to-cloud architectures.
Expertise with modern cloud infrastructure such as AWS, Azure, or equivalent, and scalable backend design.
Experience with building-automation communication protocols such as 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 a related field.

Nice To Haves

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 a related discipline.

Responsibilities

Own end-to-end platform architecture across 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.
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.
Promote high-quality engineering delivery through CI/CD, automated testing, observability, and performance monitoring.
Partner with internal and external teams to integrate platform components, modules, and third-party interfaces.
Collaborate with hardware, firmware, systems engineering, product, QA, manufacturing, and field engineering teams.
Translate customer requirements, building-automation standards, and regulatory constraints into software solutions.
Support customer engagements, technical deep dives, and strategic partnerships.
Ensure reliability, cybersecurity, and data integrity across BAS software components.
Lead secure boot, encrypted communication, OTA update security, and building-automation standards compliance efforts.
Continuously improve system robustness, fault tolerance, and long-term maintainability.