Electrical Engineer

Ephemeris Net•El Segundo, CA

20d•$150,000 - $230,000•Hybrid

About The Position

Join our electrical engineering team to design and develop the electronics that make our vision of space networking a reality---from the high-speed digital systems inside our Ephemeris Network Box to the opto-electronics that run optical inter-satellite links terminals. You'll contribute to three critical hardware domains: (1) the high-speed digital networking electronics capable of routing data at up to 9.6 Tbps between multiple optical terminals and managing a ~200 TB space-based data cache, (2) the optical terminal electronics including motor control systems, fine steering control electronics, photodiode transimpedance amplifiers, and laser drivers that enable free-space optical communication, and (3) semi-custom optical transceivers that bridge our networking and optical systems. As part of our electrical engineering team, you'll help establish how we approach electronics design for space networking systems and contribute to building Ephemeris Net's hardware engineering capabilities. Your designs will define the hardware foundation for all Ephemeris Net products. This role will report to the CTO and founder, Nicolas Brown.

Requirements

Bachelor's degree in Electrical Engineering or equivalent experience
3+ years of electronics design experience either with mixed focus on high-speed digital or analog circuits or deep focus in one area
Experience with PCB design tools (Altium, Cadence, or similar)
Track record delivering hardware
Understanding of signal integrity principles for high-speed digital design
Experience with laboratory test equipment (oscilloscopes, spectrum analyzers, network analyzers)
Ability to obtain and maintain a US security clearance

Nice To Haves

Experience designing space-qualified or radiation-tolerant electronics
Familiarity with Xilinx Versal FPGA line
Verilog or VHDL experience for FPGA development
Background in optical communication systems or laser electronics
Experience with fiber optics and optical interconnects
Experience with electrical harnessing and cable design for dynamic motion environments
Experience with high-speed serial interfaces (100G+ Ethernet, PCIe Gen4/5)
Knowledge of motor control systems and closed-loop feedback
Understanding of photodiode circuits and transimpedance amplifier design
Thermal analysis and simulation experience (ANSYS, Thermal Desktop)
Familiarity with radiation effects on electronics (SEU, TID)
Experience with space qualification standards (MIL-STD-883)

Responsibilities

Design high-speed digital systems with interfaces up to 9.6 Tbps for space-based routing
Implement optical interface protocols in space-qualified hardware
Ensure signal integrity and EMI/EMC compliance for high-speed differential signaling
Design power delivery systems for high-performance networking processors and FPGAs
Design storage subsystem electronics for a ~200 TB space-based data cache, including high-speed memory interfaces and storage controller integration
Design and develop semi-custom optical transceiver modules for space networking applications
Work with optics and photonics vendors to integrate custom requirements into transceiver form factors
Characterize and qualify transceiver performance for space environments
Design motor control systems for precision pointing and tracking of optical terminals
Develop photodiode transimpedance amplifiers for closed loop terminal pointing control
Design laser driver circuits for closed loop terminal pointing control
Implement closed-loop control systems for beam steering and acquisition
Optimize analog front-end performance for low noise and high bandwidth
Select commercial off-the-shelf (COTS) components appropriate for space environments
Collaborate with mechanical team on thermal management solutions for high-power digital electronics in vacuum
Support qualification test team in developing test procedures and qualification campaigns
Work with fabrication partners to manufacture and assemble flight hardware
Support hardware-in-the-loop (HITL) testing and integration activities
Define electrical interfaces between network box, optical terminals, and spacecraft bus
Design electrical harnessing and cable routing for dynamic motion environments
Collaborate with firmware team to ensure hardware-software integration
Support mission engineer in spacecraft-level integration and testing
Debug and troubleshoot hardware issues during build, integration, and test phases

Benefits

Generous equity package (early hire equity)
Comprehensive health care coverage
Unlimited PTO (we expect you to take at least 4 weeks per year, and leadership does the same)

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