Jobs in the United States

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Security Engineer, CS Security
Amazon.com Services LLC
Austin, TX · Seattle, WA
…Security Engineer to help shape how Amazon protects customer data through secure-by-design…
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Software Development Engineer, ADC2S
Amazon Web Services, Inc.
Seattle, WA · Arlington, VA · Bellevue, WA · Denver, CO · Herndon, VA
…we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have…
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Board Certified Behavior Analyst / BCBA
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Edison, NJ
Our mission is to deliver life changing outcomes for people with Autism, and their families, through rapid access to care - including diagnosis and individualized applied behavior analysis…
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Manager, HRIS
Service Experts LLC
Richardson, TX
Maintain appropriate system access and segregation-of-duties practices.
Added 1 min ago
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Paraprofessional - Chittenden County
Aspire Living & Learning
Barre, VT
- $19.22 to $26.28 USD / hour
Collect accurate data on behavior, progress, and skill development
Added 1 min ago
DO
Motor Vehicle Representative
Department of Motor Vehicles
CA
- $3,745 to $5,429 USD / month
Additionally, applicants must have authorization to work in the United States
Added 1 min ago
DO
Data Ops Specialist (Hybrid)
Department of Health Care Services
CA
- $6,513 to $10,537 USD / month
The Enterprise Data and Information Management Program’s Health Information Management Division (HIMD) at the California DHCS is seeking a highly motivated and experienced individual to…
Added 1 min ago
DO
Deputy Director, Program Operations - Career Executive Assignment Level C
Department of Health Care Services
CA
- $13,472 to $16,589 USD / month
All applicants must possess the knowledge and abilities, and any other requirements, described in this announcement · State civil service employees must possess essential general qualifications including integrity, initiative, dependability, good judgment,
Added 1 min ago
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Economic Support Specialist
Rock County
Janesville, WI
- $26 to $28.26 USD / hour
-Provide case management to participants of economic support in person, on the phone, walk in requests and through the ACCESS website.
Added 1 min ago
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Analyst
Rock County
Janesville, WI
- $34.69 to $37.73 USD / hour
--Work closely with the Information Technology Department to access and safeguard data
Added 1 min ago
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Sr. Engineering Technician- Nitinol
Actalent
Saint Paul, MN
- $65,000 to $76,000 USD / year
Apply structured problem-solving and critical thinking to define process strategies, resolve complex technical challenges, and make data-driven decisions.
Added 1 min ago
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Senior Manufacturing Engineer
Actalent
Delano, MN
- $80,000 to $120,000 USD / year
Identify opportunities for improvement in existing processes and methods using data analysis or direct observation, then develop and implement enhancements as quickly as practical.
Added 2 mins ago
Data Analyst, Product Analytics
Current
NY
Current is a leading consumer fintech platform transforming financial access for everyday Americans with over 6 million members. We provide access to financial solutions that seamlessly…
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Clinical Recovery Coordinator 1 (Nurse, Paramedic, RT)
INFINITE LEGACY
Falls Church, VA
Ability to use a personal computer for data entry and retrieval of information.
Added 2 mins ago
Finance Transformation Senior Associate
Grant Thornton
Charlotte, NC · Philadelphia, PA · Arlington, VA · Chicago, IL · NY · Dallas, TX · Houston, TX
Process analysis, Reporting & Business Intelligence, Data Analysis & Reconciliation
Added 2 mins ago
On Call Staff Archaeologist
Langan Engineering & Environmental Services
Portland, OR
Conduct archaeological fieldwork including pedestrian surveys, monitoring, testing, and data recovery excavations;
Added 3 mins ago
District Account Executive - Las Vegas, NV.
FTZ Fritz
United States
Prospects and hunts for new business through various customer opportunity identification methods including published data, industry guides, referrals and territory management
Added 3 mins ago
Data Analyst
CACI
Washington, DC · Washington
CACI is seeking a Data Analyst to join our Data Analytics Lab, providing analytical support for investigations and litigation cases. In this role, you will work closely with attorneys,…
Added 3 mins ago
Senior eDiscovery Project Coordinator
CACI
Washington, DC · Washington
Must have demonstrated exceptional written and verbal communication skills
Added 3 mins ago
Area Sales Manager, Mid Atantic
Distalmotion SA
Remote, United States
Distalmotion is a global MedTech company with a mission to expand access to the benefits of robotic surgery through simplified and flexible robotic technology. Its DEXTER® robotic surgical…
Added 3 mins ago
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Admission Service Representative
UMass Global
Remote, United States
- $17 to $21.5 USD / hour
Please Note: Internal Employees, please access the Jobs Hub in Workday to apply for the position.
Added 3 mins ago
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Revenue Cycle Applications Analyst- Epic Full Time Days
ETCH East Tennessee Children's Hospital Association, Inc.
Remote, United States
- Full-time
License/Certification Required: Appropriate Epic Certification(s) Required · Must have above average problem-solving skills
Added 4 mins ago
Senior Infrastructure Solutions Engineering (AI & Automation)
ewminds consulting Services
Frazer Township, PA
Build and scale automation capabilities supporting infrastructure domains such as access management, applications, network services, and platform operations.
Added 4 mins ago
Senior IT Security Engineer
Supernus Pharmaceuticals Inc
Remote, United States
…maturing enterprise security controls to protect Supernus systems, data, and users. This role will be responsible for the security engineering and operations to drive strategy and direct…
Added 4 mins ago
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Advanced Electrical Engineer
Honeywell
Northford, CT
- $108,000 to $134,000 USD / year
YOU MUST HAVE

Radiant Industries

Mechanical Engineer, Electrical Integration

El Segundo, CA, United States

$124,500 to $172,725 USD / year

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Job details

Pay: $124,500 to $172,725 USD / year
Posting language: English
Posted: Nov 10, 2026

Original job description

ABOUT RADIANT

Radiant is an El Segundo, CA-based company building the world's only mass-produced, transportable nuclear microreactors. The U.S. grid is under growing strain, with power demand accelerating, driving higher utility costs, rising carbon emissions, and interconnection backlogs. Radiant has a solution, transportable, on-site power. Our first reactor, Kaleidos, is 1 megawatt: small enough to be factory-built, transported by land, sea, or air, and deployed wherever power is needed. 1 MW can power 1000 homes for five years. Ship it back and we refuel for a 20 year operating life. We made energy a product that can be used for critical infrastructure like military bases, data centers, hospitals, and remote sites, as well as the commercial main street businesses that keep America running. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Navy and Air Force and has signed pre-order agreements with Equinix, with deployments beginning in 2028.

ABOUT THE ROLE

Radiant is seeking a Mechanical Engineer to support the design and integration of electrical components and subsystems in a fast-paced startup environment. You’ll work alongside experienced mechanical and electrical engineers to solve challenging problems in packaging, thermal management, structural design, and system integration for advanced hardware. This role offers hands-on exposure to end-to-end hardware development from CAD and analysis through build, test, and validation.

RESPONSIBILITIES & DUTIES:

Support the mechanical design and ownership of electrical components and subsystems, including:
Mechanical design of electrical assemblies such as control panels, enclosures, brackets, mounts, and supports.
Cable and wiring harness routing, retention, strain relief, bend radius compliance, and serviceability considerations.
Packaging of sensors, actuators, connectors, and electrical hardware within constrained assemblies.
3D CAD modeling and 2D drawing creation using Siemens NX, including tolerance stack-ups and GD&T basics.
Perform first-order load calculations (static, shock, vibration) to support structural design decisions.
Conduct thermal analysis and heat-transfer assessments for electrical components, enclosures, and assemblies.
Support selection of materials, fasteners, and finishes appropriate for electrical, thermal, and environmental requirements.
Participate in system integration, troubleshooting, and validation activities alongside electrical and systems engineers.
Collect and interpret technical requirements and provide clear, constructive feedback across mechanical, electrical, software, and systems disciplines.
Perform trade studies and first-order analyses to evaluate design options and constraints.
Generate and maintain design documentation to support Design for Manufacturing (DFM), assembly, and serviceability.
Support subassembly design, coordinate with manufacturing, and assist with build and test schedules.

REQUIRED QUALIFICATIONS & SKILLS:

Bachelor’s degree in Mechanical Engineering or a closely related field from an accredited institution.
3+ Years of professional hands-on mechanical design experience.
Experience using Siemens NX or similar 3D CAD tools.
Familiarity with mechanical design of electrical assemblies, including enclosures, brackets, and harness routing principles.
Basic understanding of structural mechanics, load paths, and first-order stress calculations.
Knowledge of thermal analysis, heat transfer, and thermal management concepts.
Ability to read and create mechanical drawings, including dimensions and tolerances.
Strong communication skills and ability to collaborate in a multidisciplinary engineering environment

DESIRED QUALIFICATIONS & SKILLS:

5+ years of professional hands-on mechanical design experience.
Mechanical design for high-reliability or harsh environments (nuclear, aerospace, defense, or industrial), including thermal cycling, shock, vibration, or radiation exposure.
Experience with FEA or CFD tools for structural and thermal analysis beyond first-order hand calculations.
Hands-on experience supporting build, integration, and test on the floor, including design iteration based on manufacturing feedback.

ADDITIONAL REQUIREMENTS:

Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.

BENEFITS AND PERKS

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.
Nuclear Engineering Certificate Program: 100% covered educational program with Penn State University, for eligible employees, to rapidly upscale into nuclear.
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 full-time 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: recruiting@radiantnuclear.com.

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.

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Jobs in the United States