Space Radiation & Survivability Engineer

CACI International; Danbury (CT); On-site; USD 94,000 - 198,000; Full time

Benefits offered by this job

Healthcare

Wellness

Financial planning

Retirement

Family support

Continuing education

Time off

Job summary

CACI International is seeking a Space Radiation & Survivability Engineer to join our engineering team. You will analyze and verify spacecraft systems to ensure survivability in harsh radiation environments across mission life.

This is a mid-level role with growing ownership of radiation effects analysis and hardware survivability tasks. Applicants should have 3–5 years in space radiation effects, strong documentation skills, and hands-on experience with tools like FASTRAD or CREME96.

Qualifications

• Bachelor’s degree in aerospace, electrical, physics, or related engineering field.
• 3–5 years of space radiation effects or survivability experience.
• Knowledge of space radiation environments and effects on electronics (TID/DDD/SEE).
• Familiarity with radiation analysis tools such as FASTRAD or CREME96.
• Ability to produce clear technical documentation and reports.

Responsibilities

• Define radiation environment for various orbits and mission profiles.
• Perform TID, DDD, and SEE analyses on components and subsystems.
• Support shielding analysis and mass trade studies to meet radiation tolerance requirements.
• Work with parts engineering to assess radiation hardness assurance of EEE parts.
• Support survivability analyses against charging, MMOD, thermal extremes, and EMP/nuclear environments.
• Develop and maintain radiation analysis tools and models (e.g., FASTRAD, CREME96).
• Collaborate with systems engineers, hardware designers, and part engineers to translate requirements into design guidelines.
• Participate in design reviews (PDR/CDR) and generate analysis documentation.
• Support radiation qualification testing planning and execution (TID/SEE/proton tests).
• Document methodologies and results in formal reports and memos.
• Interface with customers and government agencies on radiation requirements.

Skills

Communication skills

Independent work

Cross-functional collaboration

Education

Bachelor’s degree in related engineering field

Master’s degree (desired)

Tools

FASTRAD

CREME96

NASCAP

SEE Interactive

Job description

Job Title: Space Radiation & Survivability Engineer

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: None

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Local

* * *

The Opportunity:

We are seeking a Space Radiation & Survivability Engineer to join our engineering team. In this role, you will support the analysis, design, and verification of spacecraft systems to ensure survivability in the harsh radiation and space environments encountered throughout mission life. This is a mid-level technical position for an engineer with foundational experience who is ready to take on increased ownership of radiation effects analysis and hardware survivability tasks.

Responsibilities:

• Perform radiation environment definition (trapped protons/electrons, galactic cosmic rays, solar particle events) for various orbits and mission profiles
• Conduct total ionizing dose (TID), displacement damage dose (DDD), and single event effects (SEE) analyses for electronic components and subsystems
• Support shielding analysis and mass trade studies to meet radiation tolerance requirements
• Work with parts engineering to assess radiation hardness assurance (RHA) of EEE parts and recommend mitigation strategies
• Support survivability analysis against other space environment threats, including charging/discharging, micrometeoroid/orbital debris (MMOD), thermal extremes, and EMP/nuclear environments as applicable
• Develop and maintain radiation analysis tools, models, and simulations (e.g., FASTRAD, CREME96, or equivalent)
• Collaborate with systems engineers, hardware designers, and part engineers to translate radiation requirements into design guidelines
• Participate in design reviews (PDR, CDR) and generate supporting analysis documentation
• Support test planning and execution for radiation qualification testing (TID, SEE, proton/heavy-ion testing at accelerator facilities)
• Document analysis methodologies, assumptions, and results in formal reports and technical memoranda
• Interface with customers and government agencies on radiation and survivability requirements as needed

Qualifications:

Required:

• U.S. Citizenship required with the ability to obtain and maintain a security clearance
• Bachelor’s degree in Aerospace, Electrical, Physics, or related Engineering field
• 3-5 years of relevant experience in space radiation effects, survivability engineering, or related space systems engineering
• Working knowledge of space radiation environments and effects on electronics (TID, DDD, SEE)
• Familiarity with radiation analysis and transport tools (e.g., FASTRAD, CREME96, or equivalent)
• Understanding of EEE parts radiation hardness assurance principles
• Strong written and verbal communication skills; ability to produce clear technical documentation
• Ability to work both independently and collaboratively in a cross-functional engineering environment

Desired:

• Master’s degree in a relevant engineering or physics discipline
• Experience supporting radiation test campaigns at accelerator facilities (proton, heavy ion)
• Familiarity with MIL-STD-883, MIL-STD-750, or NASA radiation testing/analysis standards
• Experience with spacecraft charging analysis (NASCAP, SEE Interactive, or similar)
• Experience supporting proposal development and technical cost estimation

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation’s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range :

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$94,400 - $198,200

CACI is anEqualOpportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any otherprotectedcharacteristic.