Sr. Firmware Engineer

About us: Sensor

Flow is a hospitality-first technology company helping hotels reduce energy waste, improve operations, and make better decisions with real data. We help hotels reduce HVAC energy costs by 20–40% while maintaining guest comfort. We work with leading hospitality groups, including Accor, The Ascott, Shangri-La, Hilton, Marriott, and Hyatt across Asia Pacific, the Middle East, and beyond.

We design everything specifically for hotels, recognising that no two properties operate the same. By combining automation with actionable data, we help teams move from guesswork to clear, confident decision-making. At Sensor

Flow, we value ownership, clarity, and continuous improvement. We work collaboratively, challenge ideas directly, and stay focused on delivering real outcomes for our customers. If you want to work on meaningful problems in hospitality and sustainability, and be part of a team building with purpose and speed, we would love to hear from you.

Job

To design, develop, maintain our IOT product suite in partnership with the team lead. Drive architectural decisions across various aspects of the system including firmware design in edge nodes, gateway, communication and data flow between edge nodes to gateway and gateway to cloud. Programming ARM based Microcontrollers and Edge Gateways Evaluate technical risks and provide necessary resolution Investigate firmware related incidents and mitigate them Create and maintain software documentation Take owne