HMI / Machinery Front-End Developer

Full-time

• Mid-level
• On-site

We build large-scale custom machinery for the aerospace industry — ground support equipment and mobile systems where the operator interface is the top-level controller for a powerful, safety-critical machine. We're hiring an HMI / Machinery Front-End Developer to own that operator-facing software layer: the screens, controls, and workflows that make complex machinery safe and intuitive to run. You'll design and write the front-end and HMI software, then take it to the floor to commission, test, and debug against live hardware.

Renmark works under a disciplined engineering culture — AS9115 software quality, MIL-STD-882E system safety, and a structured waterfall lifecycle with full requirements traceability and V&V.

What you'll do

• Specify, design, develop, and maintain HMI / machinery front-end applications.
• Integrate the HMI layer with real-time controls for responsive, deterministic operator-to-machine behavior.
• Commission, test, and debug software on big-iron machinery — on-site, against live hardware — through bring-up, integration, and acceptance.
• Be part of an interdisciplinary team who are highly motivated by the mission and the product. You won't get boxed in at Renmark – you will wear many hats.
• Work within a waterfall lifecycle and support AS9115 quality and MIL-STD-882E safety objectives with the required documentation.

Must-haves

• Real-time controls experience, including HMI integration in an automotive, mobile, or industrial setting.
• Hands-on machinery test and debug (on-site, with the actual hardware).
• Experience using web technologies for HMI.
• Strong proficiency in C# or Java.
• Strong proficiency in written technical English.
• U.S. citizenship (required for this role).
• Able to work on-site full-time, including shop floor and commissioning environments.

Nice-to-haves

• Visual design proficiency
• ANSI C and RTOS-based embedded development experience.
• Exposure to AS9115 / AS9100, DO-178C, MIL-STD-882E, or waterfall / traceability-driven V&V.
• Background in aerospace, defense, or other regulated / safety-critical industries.
• Ability to travel