Science & Research Jobs in El Segundo, CA (Now Hiring) — 628 open — Page 19

Senior RF Spectrum Engineer

El Segundo, California, United States · On-site

$129k–$250k/yr

Senior+$7M raised

The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…

Skills: RF spectrum engineering, Interference analysis, Spectrum management, Communications systems engineering, Regulatory compliance

Nuclear Engineer

El Segundo, California, United States · On-site

$107k–$146k/yr

Mid level$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Nuclear engineering, Radiation shielding, Criticality safety, Reactor physics modeling, Transient analysis

Senior Nuclear Engineer

El Segundo, California, United States · On-site

$134k–$185k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Nuclear engineering, Reactor physics, Neutronics, Monte Carlo simulation, OpenMC

Senior Thermal Modeling Analyst

El Segundo, California, United States · On-site

$140k–$225k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: CFD, Thermal FEA, STAR-CCM+, Ansys Fluent, CAD

Staff Loads & Dynamics Engineer

El Segundo, California, United States · On-site

$163k–$229k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Structural analysis, Dynamics analysis, Finite element analysis, Vibration analysis, Shock analysis

Nuclear Engineer, Sensors

El Segundo, California, United States · On-site

$107k–$146k/yr

Mid level$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Nuclear engineering, Radiation detection, Instrumentation design, Neutron flux monitoring, Radiation transport codes

Senior Nuclear Thermal-Hydraulics Engineer

El Segundo, California, United States · On-site

$140k–$197k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Thermal-hydraulics analysis, Reactor systems codes, RELAP5, TRACE, CTF/COBRA-TF

Senior Thermal-Hydraulics Engineer

El Segundo, California, United States · On-site

$140k–$225k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Thermal-hydraulics, CFD, Thermal FEA, STAR-CCM+, Ansys Fluent

Nuclear Engineer, Core Physics

El Segundo, California, United States · On-site

$107k–$146k/yr

Mid level$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Nuclear engineering, Reactor operations, Neutronic analysis, Transient analysis, MCNP

Senior Design Quality Engineer

El Segundo, California, United States · On-site

$120k–$160k/yr

Senior$410K raised

About Circadia Health Circadia Health is a growth-stage healthcare AI company on a mission to prevent avoidable hospitalizations and transform senior-care operations. Our Circadia Intelligence Platform combines: Contactl…

Skills: ISO 13485, FDA QMSR, Design controls, CAPA, Complaint handling

Senior Thermal Modeling & Analysis Engineer

El Segundo, California, United States · On-site

$140k–$225k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: CFD, Thermal modeling, STAR-CCM+, Ansys Fluent, Heat transfer

Data Scientist, Mission Engineering

El Segundo, California, United States · On-site

$140k–$220k/yr

Senior$1.0B raised

CHAOS Industries is redefining modern defense with a multi-product portfolio that gives the ultimate advantage—domain dominance. The company's products are powered by Coherent Distributed Networks (CDN™), empowering warf…

Skills: Experimental Design, Bayesian Inference, Surrogate Modeling, Uncertainty Quantification, Python

Senior Structures Engineer

El Segundo, California, United States · On-site

$134k–$185k/yr

Senior$519M raised

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can b…

Skills: Structural engineering, Thermomechanical analysis, Finite element analysis, Stress analysis, CAD

Test Engineer - Composites

El Segundo, California, United States · On-site

$81k–$132k/yr

Mid level$127M raised

Test Engineer I Must be a U.S. Persons due to the nature of our work. Defense, aerospace, and other high-performance applications demand new material solutions stronger, lighter, more resilient, tested, and delivered fas…

Skills: Composite materials, Ablative materials, Carbon-carbon composites, Mechanical characterization, Thermal characterization

Harness Technician B Second Shift - Millennium Space Systems

El Segundo, California, United States · On-site

$22/hr–$33/hr

Entry level$39B raised

Harness Technician B Second Shift - Millennium Space Systems Company: Millennium Space Systems Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focuse…

Skills: Wire Harness Assembly, Soldering, Crimping, Multimeter Testing, Blueprint Reading

Propulsion Technician Senior Second Shift – Millennium Space Systems

El Segundo, California, United States · On-site

$29/hr–$47/hr

Senior$39B raised

Propulsion Technician Senior Second Shift – Millennium Space Systems Company: Millennium Space Systems Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite compan…

Skills: Orbital Tube Welding, Propulsion Assembly, Blueprint Interpretation, Thermal System Installation, Harness Assembly

Thermal Analyst

El Segundo, California, United States · Hybrid

$100k–$150k/yr

Mid level$7M raised

The Aerospace Corporation is the trusted partner to the nation’s space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development ce…

Skills: Heat transfer, Fluid mechanics, Thermodynamics, Thermal modeling, Aeroheating

Senior Biostatistician

El Segundo, California, United States · Remote OK

$144k–$180k/yr

Senior$1.4B raised

Company Overview ImmunityBio is a vertically integrated commercial stage biotechnology company developing next-generation therapies that bolster the natural immune system to defeat cancers and infectious diseases. The Co…

Skills: Biostatistics, Clinical Trial Design, SAS, CDISC SDTM, CDISC ADaM

Senior Director, Global Clinical Data Management

El Segundo, California, United States · Remote OK

$230k–$280k/yr

Senior+$1.4B raised

Company Overview ImmunityBio is a vertically integrated commercial stage biotechnology company developing next-generation therapies that bolster the natural immune system to defeat cancers and infectious diseases. The Co…

Skills: Clinical Data Management, Enterprise Data Governance, EDC Systems, CDMS Platforms, SDTM/CDISC Standards

Senior Human Resources Business Partner

El Segundo, California, United States · On-site

$155k–$170k/yr

Senior+$1.4B raised

Company Overview ImmunityBio is a vertically integrated commercial stage biotechnology company developing next-generation therapies that bolster the natural immune system to defeat cancers and infectious diseases. The Co…

Skills: Employee Relations, Performance Management, Compensation and Remuneration, Recruitment Practices, Labor Law Knowledge

Frequently asked questions

How much do Science & Research jobs in El Segundo, CA pay?

Based on 571 listings with disclosed salaries, most science & research jobs in El Segundo, CA pay between $99k–$225k per year. Individual offers vary with seniority, company size, and specialization.

How many Science & Research jobs are open in El Segundo, CA right now?

There are currently 628 open science & research positions in El Segundo, CA listed on Clera. New openings are added daily as companies post roles.

Which companies are hiring for Science & Research roles in El Segundo, CA?

Companies currently hiring include The Aerospace Corporation, Boeing, Varda Space Industries, Radiant, Northrop Grumman, among others. Browse the listings above to see every active employer.

Are there remote or hybrid Science & Research jobs in El Segundo, CA?

Yes — 74 of the 628 open science & research positions offer remote or hybrid work (17 remote, 57 hybrid).

How do I apply for Science & Research jobs in El Segundo, CA?

Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.