Software Engineer II

GridPoint is hiring a Software Engineer II for the Application Firmware team. You will work in Elixir on the firmware running our in-building energy controllers, the layer between our bare-metal firmware and the GridPoint cloud. The work varies. A device-side control feature one month, a telemetry pipeline the next, a field failure after that. The target does not vary: constrained hardware installed incustomer buildings, where memory, CPU, and network are all finite. Responsibilities

• Build and maintain features in our Elixir application firmware, from story to release
• Structure application services as OTP supervision trees with isolated, restartableprocesses
• Define and implement device control logic, scheduling, local data collection, andconfiguration
• Develop solutions that function within the memory, CPU, and storage limits of thetarget hardware
• Debug on real hardware: bench units, serial consoles, and logs from the field
• Maintain the interfaces to the GridPoint cloud for telemetry, control, and config sync
• Verify your own work on hardware before calling it ready to ship
• Work with stakeholders to define test plans and develop them alongside the solution
• Work with the Bare-Metal Firmware and Hardware teams on drivers, bring-up, andpower behavior, Level II is where an engineer delivers a feature end to end without close supervision. The first year should look roughly like this. Milestone What we expect 3 months Shipping scoped features through normal review; at home in the codebase and on bench hardware 6 momths Owning a feature area from design through field validation; taking part in release validation and triage 12 months Turning vague requests into designs the team agrees on; mentoring newer engineers; trusted to judge release risk Annual Salary Range: $135,000 to $175,000

• Bachelor’s in Computer Science, Computer Engineering, Electrical Engineering, orequivalent experience
• 2-5 years of professional software engineering experience
• Elixir, or strong functional programming experience and a record of picking up newlanguages
• Understanding of concurrent, fault-tolerant design: processes, message passing,supervision
• Enough embedded or systems background to design within hardware limits
• Comfortable debugging on physical devices, not only locally
• Git-based development and code review

Preferred

• Production Elixir and OTP; Nerves or similar
• Enough C/C++ to read embedded firmware and work with the bare-metal team
• Device telemetry, OTA update, or fleet management
• MQTT, Wi-Fi, cellular, or LoRaWAN
• Control protocols such as Modbus and BACnet, over both serial and TCP
• Energy management, building automation, HVAC controls, or commercial IoT
• Working alongside hardware and QA through bring-up and validation

GridPoint is a private equity backed technology leader with a mission to accelerate the world’s transition to a sustainable future by creating an intelligent energy network of grid-interactive buildings. Our technology platform harnesses the power and potential within a building to deliver energy, operational, and resiliency benefits - spanning Fortune 500 enterprises, utilities, government organizations, and small businesses.