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# Principal Software Engineer

- **Company:** Halo Industries, Inc.
- **Location:** Santa Clara, CA, United States
- **Salary:** $200,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Computer Vision, C Sharp (Programming Language), Software Documentation, Code Review, Communications Protocols, Software Debugging, Ethernet, EtherCAT, Fault Tolerance, Graphical User Interface, Python (Programming Language), Windows Presentation Foundation, Modbus, Software Architecture, RS-232, RS-485 Standard, Software Engineering, Systems Integration, TCP/IP, Real Time Systems, State Machines, Information Technology, Industrial Software, Software Version Control
- **Published:** October 12, 2026
- **Apply:** https://www.juju.com/job/16_b6cfd1cc4

## About the Role

* Bachelor's degree in Software Engineering, Computer Science, or a related technical field
 * 20+ years of relevant experience in machine control, automation, or industrial software development
 * Hands-on experience with industrial communication protocols (e.g., Modbus, TCP/IP, serial interfaces)
 * Experience developing software in C# for hardware control and UI applications
 * Experience with Industrial automation hardware
 * Understanding of motion control concepts, including PID loop control and state machine design, * Experience in semiconductor equipment or similar industrial environments
 * Exposure to wafer handling robots or semiconductor devices
 * Strong problem-solving and debugging skills in complex electromechanical systems
 * Experience in Python
 * Experience with SECS/GEM and factory automation systems
 * Experience with machine vision or camera systems
 * Familiarity with Manufacturing Execution Systems (MES)
 * Background in mechatronics or automation systems

## Description

As Halo transitions from R&D to high-volume manufacturing, we are seeking a Principal Machine Control Software Engineer to support the development, integration, and maintenance of equipment control systems for our semiconductor production tools.

This role will focus on hands-on software development and system integration, working closely with cross-functional engineering teams. The engineer will report to a senior member of the machine control team and contribute to building reliable, scalable automation systems.

Responsibilities

 * Lead the design, development, and lifecycle management of advanced machine control software for semiconductor manufacturing equipment, ensuring scalability, reliability, and performance in high-precision environments.
 * Architect and oversee implementation of industrial communication frameworks, including SECS/GEM, TCP/IP, EtherCAT, Modbus, Ethernet/IP, and RS232/RS485, establishing robust and extensible interfaces across complex systems.
 * Drive development of high-performance software solutions in C# (including WPF), defining standards for graphical user interfaces, device communication layers, and real-time system monitoring.
 * Own the integration strategy for hardware subsystems such as robotics, motion control systems, lasers, and data acquisition devices, ensuring seamless coordination between software and physical components.
 * Define and guide the development of operator control systems, automation logic, and state machines for sophisticated equipment, emphasizing maintainability, fault tolerance, and operational efficiency.
 * Lead system-level debugging, testing, and validation efforts, establishing best practices and mentoring engineers in root cause analysis and issue resolution across hardware-software boundaries.
 * Collaborate cross-functionally with mechanical, electrical, and systems engineering teams to drive end-to-end system integration, influencing design decisions and resolving complex technical challenges.
 * Establish and enforce software architecture standards, control methodologies, and safety practices aligned with industry regulations and internal quality benchmarks.
 * Champion engineering excellence through code reviews, documentation standards, version control strategies, and continuous improvement of development processes.
 * Provide technical leadership and mentorship to engineering teams, contributing to strategic planning, technology roadmaps, and innovation initiatives within the organization.