S

SpaceX

Builds rockets and runs Starlink satellite internet

Radiation Effects Engineer

Full-Time
$105k - $150k
Junior
Bachelor's
Hawthorne, CA, USA
In Person
Aerospace EngineeringAvionics

About the job

Requirements
  • A bachelor's degree in electrical, materials, physics, or another engineering discipline.
  • At least 1 year of professional experience in the radiation effects field; internships and project experience are applicable.
  • Experience with full-stack web development, including Python, SQL, JavaScript, and HTML.
  • Experience with single-event effects risk calculations.
  • Previous work experience in radiation effects, including modeling, testing, and/or analysis.
  • Experience writing scripts to control test hardware.
  • Proficiency with hardware blueprints or schematics and circuit functions based on designs.
  • Previous component engineering and/or component reliability experience.
  • Strong knowledge of mathematics and statistics.
  • Proficiency with avionics hardware spanning integrated circuits, PCBA boards, sensors/transducers, functional troubleshooting, and defect detection.
  • Radiation dose safety training.
  • Must meet U.S. export-control eligibility requirements as a U.S. citizen or national, lawful permanent resident, refugee, or asylee, or be eligible to obtain the required U.S. Department of State authorizations.
Responsibilities
  • Support a cross-discipline team of design and system engineers by providing radiation test and analysis results, advice on requirements flow down, modeling and analysis reports, and recommendations for mitigating radiation effects.
  • Develop component databases and applications for interfacing with radiation test data used across programs.
  • Work with supply chain, component reliability, and radiation engineering teams to ensure data collected during radiation test campaigns is available and accessible to design engineers.
  • Review PCN changes to maintain radiation qualification status.
  • Develop testing and reporting standards for component and flight PCBA radiation tests.
  • Work with supply chain and component reliability teams to refine preferred components across programs.
  • Work with circuit design, electronics manufacturing, and software implementation teams to analyze and improve test coverage.
  • Recommend design and process improvements and data collection.
  • Establish requirements for component procurement specifications.
  • Comply with radiation regulatory requirements for radiation safety.
Desired Qualifications
  • Excellent written and verbal communication skills.

About the company

SpaceX builds and launches reusable rockets and spacecraft for NASA, the military, and companies, and it runs Starlink, a satellite internet service for homes and businesses. In 2020, its Dragon capsule became the first privately built spacecraft to carry astronauts to the International Space Station. Its Falcon 9 rocket lands its first stage so the booster can fly again, which cuts launch costs, while Starlink beams internet from low-orbit satellites to small dishes for a monthly fee. SpaceX also owns xAI, maker of the Grok chatbot and owner of the social network X, and is building Starship, a fully reusable rocket meant to carry people to the Moon and Mars. Elon Musk founded SpaceX in 2002, and it is based in Starbase, Texas.

Company Size

10,001+

Company Stage

IPO

Headquarters

Starbase, Texas

Founded

2002

Get referred to SpaceX

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Starlink demand keeps compounding: subscribers doubled to 12 million in the year to June 2026.
  • Room to grow: SpaceX listed 2,693 open roles in October 2026, over a third of them for Starlink.
  • Rivals rent its AI supercomputers: Claude maker Anthropic agreed in May 2026 to pay SpaceX $1.25 billion a month.

What critics are saying

  • Stock grants swing hard: shares closed between $108 and $211 in the four months after the June 2026 IPO.
  • Expect long weeks: 1,724 of SpaceX's 2,693 job posts in October 2026 mention extended hours and weekend work.
  • AI spending outruns sales: SpaceX put $15.8 billion into AI data centers in the June 2026 quarter, double its revenue.

What makes SpaceX unique

  • SpaceX is the world's busiest launcher by far: its 165 orbital launches in 2025 were nearly double China's total.
  • Starlink carries the profits: it earned $1.7 billion in the June 2026 quarter, while rockets and AI lost $1.8 billion.
  • Elon Musk has the final say: super-voting shares give him about 82% of shareholder votes after the June 2026 IPO.

Help us improve and share your feedback! Did you find this helpful?

Benefits

  • Benefits and Perks - Our employees' well-being is important to us and essential to our capacity to do extraordinary things. We offer a wide variety of programs to support the health, wellness, and financial security of our employees and their families.

Growth & Insights and Company News

6 month growth

0%

1 year growth

0%

2 year growth

1%
Yahoo Finance
Oct 29th, 2026
T-Mobile CEO sees "no room" for SpaceX MVNO deal as SpaceX eyes 80,000 cell sites

T-Mobile chief executive Srini Gopalan said he sees "no room" for a mobile virtual network operator (MVNO) deal with SpaceX, on the company's third-quarter earnings call on October 28, 2026. Verizon's chief executive has taken the same stance. The refusal comes as SpaceX agreed to buy nationwide 800 MHz spectrum and was reported to be in talks to access about 80,000 US cell sites. Without wholesale access, SpaceX must own spectrum and rent towers, a costlier path. The spectrum deal needs Federal Communications Commission approval and is expected to close in the first half of 2027. Gopalan said he would consider a resale deal for a complementary product. T-Mobile earned $3.22 a share on $23.58 billion of revenue, and raised its free cash flow guidance to $18.7 billion to $18.8 billion.

Yahoo Finance
Oct 28th, 2026
SpaceX could defy IPO slumps of up to 48% with $5.2B Starlink revenue and AI deals

SpaceX (NASDAQ: SPCX) faces a risk common to new listings: an LPL Financial study of nearly 1,500 initial public offerings (IPOs) over 30 years found a median drawdown of up to 48% in the first year of trading. The median one-year return was negative 4.7%. Still, one Motley Fool analyst argues SpaceX could defy the pattern in 2027. Starlink had 13.6 million consumer subscribers at the end of September, up 89% year over year. Connectivity revenue rose 69% to $5.2 billion in the third quarter, and operating income nearly doubled to $2.4 billion. Its AI infrastructure business is growing too. Anthropic agreed to spend up to $120.5 billion through 2029, and Alphabet's cloud deal pays $920 million a month. SpaceX and Tesla are also weighing a merger, though nothing is certain.

Yahoo Finance
Oct 28th, 2026
SpaceX's super intelligence unit hits $7.56B quarterly revenue, up 830%, and is the top reason to buy

SpaceX's super intelligence (SI) division, not its rockets or Starlink, is the best reason to buy the stock, argues Motley Fool writer Keithen Drury. The unit, which holds the company's AI data centre platform, reported third-quarter revenue of $7.56 billion, up about 830% from $813 million a year earlier. SI was formed from xAI, which SpaceX acquired a few months before going public, and includes the social media platform X. Revenue was about three times the $2.56 billion earned in the second quarter. SpaceX spent $16.4 billion in capital expenditure on the division during the quarter. SI posted an operating profit of $431 million. The result includes the first report since SpaceX acquired Cursor in August, which brought a one-off $1.2 billion stock-based compensation cost.

Yahoo Finance
Oct 28th, 2026
SpaceXAI offers to buy 418 Mississippi homes, but sellers must drop noise lawsuit claims

SpaceXAI, through its subsidiary MZX Tech, is offering to buy 418 homes in Southaven, Mississippi, near the gas-turbine power plant that feeds its data centres. Sellers must give up their claims in a pending noise class action against the company, The Guardian reports. A letter from Burch Realty Group says sellers will be unable to recover damages from the lawsuit. The offers are reportedly based on Zillow estimates, and at least 18 owners have agreed to sell. Residents sued in June 2026, estimating that more than 10,000 people live in the affected area. The company denies the allegations, and a court conference on class certification is scheduled. Renter Danielle Dillard was given 60 days to leave after her landlord took the buyout, with no moving costs offered. Mayor Darren Musselwhite called the programme "totally voluntary.

Yahoo Finance
Oct 28th, 2026
SpaceX Q3 sales jump 161% to $14.6B as AI overtakes Starlink, but $19.6B capex worries

Space Exploration Technologies (SpaceX) reported third-quarter 2026 sales of $14.6 billion, up 161% from a year earlier. Net income was $4.4 billion, against a loss of $1.1 billion a year ago. Artificial intelligence (AI) revenue jumped 830% to $7.6 billion, making it the largest segment at 52% of sales. Starlink sales rose 69% to $5.2 billion, with subscribers up 13% to 13.6 million. Space launch brought in $1.8 billion from 12 customer launches, up 6%. Spending is heavy. Capital expenditure rose 185% to $19.6 billion, with 83% going to AI. Management expects AI spending of $35 billion to $40 billion in 2026. Investors pushed the stock higher, though some remain wary of the outlay if AI sales growth slows.