El Segundo, California, United States · On-site
$134k–$185k/yr
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: Concrete Design, Precast Concrete, Structural Analysis, Finite Element Analysis, Seismic Qualification
Hayward, California, United States · On-site
$30/hr–$40/hr
Job Description Take Your Construction Career to the Next Level! Are you ready to be challenged, make a difference, and experience professional growth in your career? Kleinfelder's Construction Services team is looking f…
Skills: Construction Materials Testing, Soil Testing, Asphalt Testing, Aggregate Testing, Concrete Testing
Carlsbad, California, United States · On-site
$120k–$160k/yr
Overview Exagen Inc. is a leading provider of autoimmune diagnostics, committed to transforming care for patients with chronic and debilitating autoimmune conditions. Based in San Diego County, Calif., Exagen’s mission i…
Skills: Healthcare Marketing, Clinical Content Development, Sales Enablement, Scientific Writing, Project Management
Orange, California, United States · On-site
$32/hr–$35/hr
Job description Job Title: Clinical Research Coordinator (CRC) Job Type: Full-Time Job Location(s): Orange, CA *This role is ONSITE* Job Salary: $32-$35/hour ($66,560.00 - $72,800.00 per year) Job Schedule: M-F 40-hours/…
Skills: Clinical Research Coordination, IRB Submissions, Participant Recruitment, GCP Compliance, CTMS
Yuba City, California, United States · Remote Solely
Join Our Team as a Work-From-Home Data Entry Research Panelist! Are you ready to earn money from the comfort of your own home? This exciting opportunity is perfect for anyone with a variety of skills and backgrounds – wh…
Skills: Data Entry, Typing, Research, Internet Proficiency, Time Management
Orange, California, United States · On-site
$90k–$100k/yr
***Please note: This position is onsite and not remote. Candidates must be based in the Orange, CA area, as relocation assistance is not provided. Only individuals authorized to work in the U.S. will be considered.*** Jo…
Skills: Clinical Research Coordination, Regulatory Coordination, Patient Engagement, Biospecimen Handling, Lab Coordination
Los Angeles County, California, United States · On-site
$21/hr–$22/hr
Would you like to join an international team working to improve the future of healthcare? Do you want to enhance the lives of millions of people? Grifols is a global healthcare company that since 1909 has been working to…
Skills: Equipment Cleaning, Aseptic Processing, FDA Regulations, Documentation, Lyophilization
Los Angeles County, California, United States · On-site
$21/hr–$22/hr
Would you like to join an international team working to improve the future of healthcare? Do you want to enhance the lives of millions of people? Grifols is a global healthcare company that since 1909 has been working to…
Skills: Equipment Cleaning, Aseptic Processing, FDA Regulations, Documentation, Lyophilization
California, United States · Remote OK
$110k–$130k/yr
Why Oxford Instruments? Our purpose is to accelerate the breakthroughs that create a brighter future for our world. Our technology and scientific expertise enable our customers to discover and bring to market exciting ne…
Skills: Sales Prospecting, Lead Management, Customer Relationship Management, Market Intelligence, Competitive Analysis
Antioch, California, United States · On-site
$75/hr–$116/hr
We are so glad you are interested in joining Sutter Health! Organization: SEBMF-East Bay Medical Foundation Position Overview: Per Diem Position: Schedule will vary based on department needs, with shifts ranging from 4 t…
Skills: Diagnostic Sonography, Patient Assessment, Medical Terminology, Anatomy, Physiology
Foster City, California, United States · On-site
$118k–$153k/yr
At Gilead, we’re creating a healthier world for all people. For more than 35 years, we’ve tackled diseases such as HIV, viral hepatitis, COVID-19 and cancer – working relentlessly to develop therapies that help improve l…
Skills: Flow Cytometry, Cell Sorting, Spectral Cytometry, Imaging Cytometry, Instrumentation Troubleshooting
Duarte, California, United States · On-site
Join the transformative team at City of Hope, where we're changing lives and making a real difference in the fight against cancer, diabetes, and other life-threatening illnesses. City of Hope’s growing national system in…
Skills: Hematology, Specimen Processing, Clinical Laboratory Procedures, Quality Control, Preventive Maintenance
London, England, United Kingdom · Hybrid
Business Introduction At GSK, we have bold ambitions for patients, aiming to positively impact the health of 2.5 billion people by the end of the decade. Our R&D focuses on discovering and delivering vaccines and medicin…
Skills: Clinical Development, Communication, Drug Regulatory Affairs, Evidence Based Decision Making, Good Clinical Practice (GCP)
Pasadena, California, United States · On-site
$52/hr–$79/hr
** Internal Workers – Please log into your Workday account to apply ** Huntington Hospital Employee Login Expectations: Performs a variety of standardized tests and procedures in conjunction with associated clerical and …
Skills: Multitasking, Protocol Adherence, Clinical Laboratory Testing, Quality Assurance, Workflow Coordination
Pasadena, California, United States · On-site
$52/hr–$79/hr
** Internal Workers – Please log into your Workday account to apply ** Huntington Hospital Employee Login Expectations: Performs a variety of standardized tests and procedures in conjunction with associated clerical and …
Skills: Multitasking, Protocol Adherence, Clinical Laboratory Testing, Quality Assurance, Workflow Coordination
California, United States · Remote OK
$173k–$307k/yr
The Opportunity The Camera Raw team at Adobe is seeking an experienced Software Engineer to own the technical transfer of AI/ML models from research and training into shipping imaging products. This role sits at the inte…
Skills: C++, Machine Learning, Model Optimization, CoreML, ONNX
El Segundo, California, United States · On-site
$117k–$227k/yr
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: Systems Integration, Space Systems Engineering, Architecture Evaluation, Acquisition, Technical Leadership
Pleasanton, California, United States · On-site
$90k–$180k/yr
Abbott is a global healthcare leader that helps people live more fully at all stages of life. Our portfolio of life-changing technologies spans the spectrum of healthcare, with leading businesses and products in diagnost…
Skills: Regulatory Strategy, FDA Submissions, International Product Registration, Premarket Notifications, PMA Supplements
Irvine, California, United States · Hybrid
We are the people who give possibilities purpose BD is one of the largest global medical technology companies in the world. Advancing the world of health™ is our Purpose, and it’s no small feat. It takes the imagination …
Skills: Financial Planning, Forecasting, Budgeting, Financial Modeling, Strategic Partnership
San Jose, California, United States · On-site
$115k–$213k/yr
At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology. This position is for an R&D engineer, who will be involved in developing a multi-threaded and distributed phys…
Skills: C++, C, Linux, Data Structures, Algorithms
El Segundo, California, United States • On-site
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Design and develop critical concrete and precast structural systems for manufacturing and deployment sites, including spent fuel storage and foundations. Perform detailed structural, thermal, and seismic analyses to ensure integrity and manage the full lifecycle from design to fabrication and testing.
Requires a Bachelor's degree in Civil, Structural, or Mechanical Engineering with over 5 years of experience in concrete design and 4+ years in structural analysis using FEA tools. Candidates should be proficient in both hand calculations and software like Abaqus, Ansys, or SAP2000.
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 be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.
Radiant is seeking a highly motivated Senior Structures Engineer to design and develop critical concrete and precast structural systems supporting Radiant's manufacturing and deployment sites. You will solve unique challenges creating efficient, reliable concrete structures capable of surviving extreme thermal and seismic environments while meeting site and program constraints. You will be responsible for trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will play a critical role enabling the manufacturing, fueling, and safe storage infrastructure that supports Radiant's microreactors.
Ownership of critical concrete structures such as spent fuel dry cask storage systems, factory and facility foundations, and precast concrete elements supporting manufacturing and site operations.
Conduct trade studies and develop designs to meet program requirements for static, thermal, and seismic loading conditions.
Perform detailed structural analysis (reinforced and precast concrete design, static strength, durability) and dynamic analysis (seismic qualification) to determine structural integrity (margins of safety) using both hand calculations and finite element tools.
Develop and execute construction, fabrication, and test plans for precast and cast-in-place concrete elements.
Create and manage a Bill-of-Materials (BOM).
Find and develop suppliers and fabricators for precast concrete components.
Own subassembly/structure design, fabrication, and test schedules.
Own risk analysis (FMEA) for concrete structural subsystems.
Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.
Bachelor's degree from an accredited institution in Civil, Structural, or Mechanical Engineering.
5+ years of experience designing concrete or reinforced concrete structures.
4+ years of experience performing structural analysis using both hand calculations and finite element tools (Abaqus, Ansys, SAP2000, or similar).
Active PE license (not required)
Experience with reinforced concrete design codes (ACI 318 or similar).
Experience designing precast concrete systems, including handling, transport, and erection considerations.
Experience with dry cask storage design or spent nuclear fuel storage systems.
Experience with seismic design/qualification of concrete structures.
Experience with nuclear or other critical-facility structural design.
Experience designing hardware/structures that were fabricated, deployed, and iteratively improved.
Experience resolving thermal expansion and thermal gradient issues in concrete designs.
Experience working with interdisciplinary teams (mechanical, civil, geotechnical).
Solid understanding and application of GD&T and construction tolerancing.
Proficiency with both "hand calc" analytical methods and higher-fidelity finite element-based analysis methods.
Ability to derive free-body diagrams for systems with which one was not previously familiar.
Self-motivated with strong organizational, written, and oral communication skills.
Experience with using text-based software development tools.
Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.
Stock: Substantial incentive stock plan for all full-time employees.
Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
One Medical: Sponsored memberships for employees and their dependents.
Vision: 100% top tier plan coverage + 50% for dependents.
Dental: 100% top tier plan coverage, orthodontia extra, 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.
Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.
The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities: [email protected].
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
Making Nuclear Power Portable.
Radiant is building the world’s first mass-produced portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1 MW failsafe microreactor that can be transported anywhere power is needed. Founded in 2020, Radiant plans to test its first reactor in 2026, with initial customer deployments beginning in 2028.
Offices: 1921 E Maple Ave, El Segundo, California 90245, US
Based on 11509 listings with disclosed salaries, most science & research jobs in California pay between $101k–$250k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 18,233 open science & research positions in California listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Applied Materials, Northrop Grumman, Google, Apple, Northrop Grumman Mission Systems, Inc., among others. Browse the listings above to see every active employer.
Yes — 3803 of the 18233 open science & research positions offer remote or hybrid work (976 remote, 2827 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
