Software Development Engineer

### Summary

Heatcon develops composite repair controllers serving aerospace, defense, wind energy, and industrial composite repair markets. Our product architecture is built on embedded Linux platforms (ARM-based SoMs), featuring real-time process control, web-driven HMI, secure networking, data logging, and role-based access control.

We are seeking a Software Development Engineer to design and maintain embedded Linux application software for our next-generation controller platform, while also supporting and sustaining legacy products built on Microchip PIC microcontrollers. This role bridges high-level application development with low-level hardware interfacing: you will work closely with our Embedded Systems and Electrical Engineers to integrate hardware drivers, board-level firmware, and real-time control loops with the application layer.

### Essential Duties and Responsibilities include the following.

### Other duties may be assigned.

• Develop and maintain application software on embedded Linux platforms (e.g., Toradex Verdin iMX8M Plus / Torizon OS)
• Implement cure execution engine, data logging, recipe/library management, and system diagnostics
• Develop system services for USB, Wi-Fi, Ethernet, Bluetooth, and cloud connectivity
• Implement user authentication, role-based access control, and device security
• Support secure over-the-air (OTA) and offline (USB) software update mechanisms
• Implement and tune PID control loops for thermal cure processes
• Develop real-time or near-real-time control software with deterministic timing requirements
• Apply industrial process control principles to composite repair heating applications
• Ensure safe and reliable operation under fault conditions (watchdogs, fail-safes, alarm handling)
• TCP/IP networking, HTTP/FTP services, SMTP email notifications
• Secure data export via USB and network
• Remote diagnostics and telemetry
• Device management platform integration using pub/sub messaging and message broker architectures (e.g., MQTT, AMQP, or similar)
• Maintain and troubleshoot bare-metal firmware on legacy controller products built on Microchip PIC microcontrollers (PIC16/PIC18/dsPIC)
• Diagnose and resolve field issues reported by customers
• Port or bridge legacy functionality to the new embedded Linux platform where appropriate
• Develop and execute unit, integration, and regression tests
• Support compliance validation (UL, IEC, accessibility)
• Participate in milestone design reviews
• Maintain software revision control (Git) and release documentation

### Supervisory Responsibilities

This position does not have supervisory responsibilities, but may provide guidance to less senior members of the engineering staff.

### Minimum Qualifications

• Strong proficiency in embedded Linux application development
• Strong C programming skills, including experience with bare-metal microcontroller firmware
• Experience interfacing with hardware peripherals via serial buses (RS-232, RS-485, SPI, I²C)
• Ability to read electrical schematics and hardware reference documentation
• Experience with multi-threaded applications, IPC, and concurrency in resource-constrained environments
• Familiarity with real-time or near-real-time control concepts

### Preferred Qualifications

Experience with ARM-based Linux SoMs (e.g., NXP i.MX8, Toradex Verdin)

Experience with Microchip PIC microcontrollers (MPLAB X, XC8/XC16 compilers)

Experience writing or modifying custom Linux device drivers and kernel modules

Experience working with ADCs, DACs, and signal conditioning for sensor integration

Hands-on experience with oscilloscopes, logic analyzers, and JTAG/SWD debug tools

Experience implementing and tuning PID con