Senior Terrestrial Automation & Controls Engineer

About This Role

The Senior Terrestrial Automation & Controls Engineer builds bespoke test infrastructure that qualifies spaceflight hardware for orbit. They design, build, and own sophisticated ground support equipment (GSE) and test systems: propulsion test stands, environmental qualification chambers, spacecraft-level integration testing and more! Our stack is modern, including a custom PLC framework and Beckhoff EtherCAT tooling built in-house. They will have a meaningful impact on architecture decisions, and the chance to define standards that will outlast any single program.

Responsibilities

• Design, build, and maintain test systems and ground support equipment (GSE) for flight hardware qualification and manufacturing operations.
• Integrate with a wide range of external hardware, including thermal vacuum chambers, ovens, chillers, pressure systems, data acquisition hardware, and precision instrumentation.
• Develop and extend Varda's internal PLC framework and EtherCAT tooling to support evolving program needs.
• Contribute to architecture decisions on real-time control implementation, including evaluation of PLC-based (TwinCAT 3) versus Linux-based approaches for high-frequency control applications.
• Build cabinets, wire panels, and own systems end-to-end from electrical design through commissioning.
• Partner with propulsion, avionics, GNC, and manufacturing teams to deliver test infrastructure that meets their needs on aggressive timelines.
• Champion sustainable engineering practices that enable new engineers to ramp quickly on the tech stack and maintain production systems reliably.

Basic Qualifications

• Bachelor's degree in Mechanical Engineering, or related technical field.
• 5+ years of industry experience in test automation, controls, and/or industrial automation.
• Hands-on experience integrating with industrial hardware over protocols such as EtherCAT, Modbus (TCP/RTU), RS-232/485 serial, or similar communication standards.
• Experience with at least one modern PLC ecosystem - ideally Beckhoff TwinCAT 3 with structured text (IEC 61131-3), or a demonstrated eagerness to develop deep expertise there.
• Comfort working across the full stack: designing electrical panels, wiring cabinets, debugging hardware, and writing control software.
• Proven ability to thrive in a fast-paced startup environment where priorities shift, and end-to-end ownership of problems is expected.

Preferred Skills and Experience

• Strong intuition for when to use real-time PLC code versus higher-level Python orchestration, and a strong understanding of the tradeoff.
• Experience working with custom or in-house control frameworks, rather than relying solely on vendor-provided stacks.
• Advanced EtherCAT expertise - including DC sync, ENI configuration, master implementation, or driver-level work.
• Production experience with TwinCAT 3, structured text, and the broader IEC 61131-3 language suite.
• Experience designing deterministic, hard real-time control loops with sub-millisecond cycle times.
• Familiarity with time-series data acquisition and visualization tools such as Grafana, InfluxDB, or similar platforms.
• Aerospace experience, particularly in spacecraft testing or GSE development.
• Environmental test experience, including TVAC, thermal cycling, and vibration testing.
• Hands-on experience working with high-pressure gas or fluid systems.
• Experience developing propulsion test stands or other complex, multi-subsystem test infrastructure.
• Familiarity with spacecraft qualification standards and associated documentation requirements.
• Experience developing safety-related control systems and evaluating proposed solutions for reducing safety-related risks.

Pay Range

• Salary range: Senior: $140,333 - $179,314/ per year.
• This role is on-site in El Segundo, CA.
• Leveling and base salary is determined by job-related skills, education level, experience level, and job performance.
• You will be eligible for incentives in the form of stock options and/or long-term cash awards.