About

Danielson Systems

Danielson Systems is the independent controls and software engineering practice of Preston Danielson, based in The Colony, Texas. I founded it in 2026 to take on contract work bridging industrial control systems and the software that runs them, drawing on ten-plus years across material handling, aerospace, energy storage, and HVAC.

My background runs in two parallel tracks: drafting schematics in AutoCAD Electrical and programming PLCs for full-scale system integration with drives, sensors, and safety devices on one side; software engineering — enterprise web applications, containerized microservices, embedded firmware validation, CI/CD — on the other. The work I'm most interested in lives at the intersection: hardware-software integration where neither side can be treated as a black box.

Background

Where the work was learned

Before founding Danielson Systems, I spent ten-plus years in controls and software roles across logistics, aerospace, energy storage, and HVAC.

• Associate Consultant, Fenway Group (Southwest Airlines)

  2016–2017

  Maintained and deployed enterprise Java and .NET web applications across development, QA, and production Linux environments; introduced Agile/Scrum practices and automated legacy processes with Python.

• Electrical Engineering Intern, Sabre Industries

  2017–2018

  Led controls and software development for environmental control systems in Battery Energy Storage Systems, integrating Schneider PLCs and Modicon HMIs with HVAC and battery management equipment, and coordinating UL and CSA certification for North American deployment.

• Automation & Controls Engineer, Siemens Logistics

  2018–2021

  Designed and programmed PLC-based controls for large-scale automated sorting and material handling systems deployed at UPS Worldport and major airports, including FactoryTalk HMI development, AutoCAD Electrical panel design, industrial network integration, and on-site commissioning.

• Engineering Consultant, Apex Systems (Boeing R&D)

  2021–2022

  Contributed PLC and safety-PLC programming for a Linux-based FANUC cobot platform supporting Boeing R&D's aircraft manufacturing automation, including proximity-sensing interlocks and ROS-based MoveIt collision-avoidance simulation.

• Sr. Software Engineer, Raytheon

  2022–2024

  Built containerized C++ microservices on RHEL Linux with Docker and GitLab CI/CD for aerospace search-and-tracking systems, led design and code reviews, and built BDD test infrastructure in Python.

• Sr. Systems Validation Engineer, Lennox

  2025–2026

  Developed Python-based automated test frameworks validating commercial HVAC microcontroller firmware on ARM Cortex-M4 embedded targets, including HIL fixtures simulating VFDs, compressors, fans, and sensor inputs, with serial-protocol testing across Modbus RTU, BACnet, UART, CAN, and I²C.

Education

Louisiana Tech University