Senior Embedded Software Engineer jobs in United States
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Radiant · 1 day ago

Senior Embedded Software Engineer

positionEl Segundo, CA
timeFull-time
remoteOnsite
senioritySenior Level
date5+ years exp

Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The Senior Embedded Software Engineer will design, develop, and test embedded software for instrumentation and control systems, playing a key role in creating mission critical software control systems for the first commercialized portable nuclear microreactor.

Clean EnergyEnergyEnergy EfficiencyRenewable Energy
badNo H1Bnote

Responsibilities

Design and build reliable, fault-tolerant embedded software for production hardware
Develop and bring up new drivers for I&C hardware
Lead design reviews, review and iterate on feedback
Be a responsible engineer from architectural design through test, build and implementation
Create robust testing plans and documentation

Qualification

Embedded software developmentRTOS experienceCC++ proficiencyArchitecture experienceCMake experienceFPGA experienceOwnership of responsibilitiesAutonomous workCommunication

Required

Bachelor's degree in computer engineering, computer science, electrical engineering, or similar discipline from accredited institution
5+ years of industry experience on embedded software, including 1+ year of design and architecture experience
Experience with an RTOS (Zephyr, NuttX, ThreadX, etc)
Proficient in C and C++

Preferred

Experience with Zephyr RTOS
Experience working with Simulink Autocode C++ export
Experience with CMake
Experience with FPGAs
Comfortable reading hardware schematics
Comfortable taking ownership of responsibilities and full design
Comfortable working autonomously and proactively in day-to-day activities
Strong communication with peers and management

Benefits

Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
100% premium coverage for top tier plan (including orthodontia) + 50% for dependents.
Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
Daily catered lunch. Free snacks and drinks.
Flexible PTO policy. Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.

Company

Radiant

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Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
dateFounded in 2019
location
El Segundo, California, USA
people-size51-200 employees
web-link
https://radiantnuclear.com

Funding

Current Stage
Late Stage
Total Funding
$518.82M
Key Investors
Andreessen HorowitzUnion Square Ventures
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M

Leadership Team

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Doug Bernauer
Chief Executive Officer
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Recent News

Pulse 2.0
Radiant Raises Over $300 Million To Scale Mass-Production Of Portable Nuclear Microreactors
2025-12-27
alleywatch.com
The Weekly Notable Startup Funding Report: 12/22/25
2025-12-24
Built In
Radiant Raises $300M to Scale Nuclear Microreactors
2025-12-19
Company data provided by crunchbase