Senior Electrical Engineer, HIL — Build & Lead Test Infra

Radiant; El Segundo (CA); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Stock option plan

Medical plan

One Medical membership

Vision plan

Dental plan

Flexible PTO

Remote workday allocation

Parental leave

Job summary

Radiant in El Segundo, CA seeks a Senior Electrical Engineer, HIL to lead the design, build, and maintenance of electrical test infrastructure for Kaleidos, our 1 MW transportable microreactor, with deployment targeted for 2028.

You will own test infrastructure, including hardware-in-the-loop systems and test benches, drive integration across power, sensors, and control software, and lead design reviews with cross-functional teams.

Qualifications

• BS in Electrical Engineering or related field.
• 5+ years hands-on electrical engineering experience.
• 3+ years developing HIL systems with DAQ/IO interfaces.
• Experience owning and building electrical test infrastructure.
• Proficiency with DAQ and test platforms such as dSpace, NI PXI, Speedgoat.

Responsibilities

• Build the HIL platform from the ground up: plant simulation, real hardware-in-the-loop, and the test environment Kaleidos ships from.
• Own the design, build, and maintenance of electrical test infrastructure, including test benches and new test platforms as the program scales.
• Define electrical and software integration requirements across power distribution, signal conditioning, sensor mapping, actuator interfaces, and device simulation.
• Own the communication layer between hardware, control systems, and software, including protocol selection, timing, and boundary fault behavior.
• Lead the electrical validation strategy, developing and iterating the test procedures the program depends on.
• Assemble, debug, and troubleshoot test hardware and harnesses hands-on, with minimal guidance.
• Execute test procedures, collect data, and lead analysis across multiple test environments.
• Drive automation and tooling improvements, with real influence over how the team tests.
• Lead design reviews and carry technical decisions to cross-functional stakeholders.

Skills

Electrical design

HIL development

Test infrastructure ownership

DAQ & debugging

Regulated environment experience

Electrical debugging

Education

BS in Electrical Engineering

Tools

dSpace

NI PXI

Speedgoat

Job description

Radiant in El Segundo, CA seeks a Senior Electrical Engineer, HIL to lead the design, build, and maintenance of electrical test infrastructure for Kaleidos, our 1 MW transportable microreactor, with deployment targeted for 2028.

You will own test infrastructure, including hardware-in-the-loop systems and test benches, drive integration across power, sensors, and control software, and lead design reviews with cross-functional teams.