1,830,731open jobs
105,400companies
275,266added this week
Browse all
Salary
$94k – $198k per year
Location
In office (Danbury)
Seniority
Middle · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 18, 2026. First seen by Alion on Oct 6, 2026. CACI International scores D on the Alion truth index.

Overview
Company
Impact
Profile match
CACI International is an American technology company founded in 1962 that works almost entirely for United States defence, intelligence and federal civilian agencies. It has moved from being a conventional IT services contractor toward supplying its own technology, with a substantial expeditionary electronic warfare and signals intelligence product line, photonics and optical communications for space, and secure network modernisation. Headquartered in Reston, Virginia, the company employs more than twenty thousand people, the majority holding security clearances, and has grown through a steady programme of acquisitions that add differentiated technology rather than headcount alone.
Job Title: Space Radiation & Survivability EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage 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 an Equal Opportunity 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 other protected characteristic.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
1,830,731 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
Danbury
≈ $92k – $174k per year (Estimated) • Remote (United States) • 15+ years exp • Master's Degree • United States
Python
Java
Apply
≈ $56k – $101k per year (Estimated) • In office • Full-Time • Bachelor's Degree • United States
Python
Java
Management
SharePoint
Microsoft Office
Apply
≈ $69k – $126k per year (Estimated) • Equity • In office • Full-Time • 3+ years exp • Bachelor's Degree • Frisco
Python
SQL
Databases
Snowflake
DevOps
Terraform
CloudFormation
CI/CD
AWS
GitHub
Cybersecurity
GDPR
HIPAA
Threat Modeling
Apply
$85k – $105k per year • In office • Full-Time • 2+ years exp • Bachelor's Degree • Oklahoma City
Design
SolidWorks
Management
Outlook
Microsoft Office
Apply
$120k – $162k per year • Equity • In office • Full-Time • 5+ years exp • Bachelor's Degree • Austin
Management
Microsoft Office
Apply
$51k – $101k per year • In office • Full-Time • Associate's Degree • Orlando
Apply
$82k – $172k per year • Remote (United States) • Secret • Full-Time • Bachelor's Degree • United States
Apply
$56k – $111k per year • In office • Full-Time • 3+ years exp • Los Gatos
Apply
$99k – $207k per year • Remote (United States) • Secret • Full-Time • 8+ years exp • Bachelor's Degree • United States
Python
SQL
Groovy
Databases
PostgreSQL
Oracle
ElasticSearch
AI/ML
Embeddings
Hybrid Search
Machine Learning
DevOps
Kibana
CI/CD
Jenkins
AWS
Kubernetes
Amazon EKS
GitLab
Amazon S3
Analytics
Apache NiFi
Apply
$99k – $207k per year • In office • Full-Time • 5+ years exp • Arlington
PowerShell
AI/ML
Copilot
Copilot Studio
Analytics
Power BI
Management
OneDrive
SharePoint
Apply
$120k – $140k per year • In office • Danbury
Apply
$38k per year • In office • Internship • Bachelor's Degree • Danbury
Apply
≈ $37k – $61k per year (Estimated) • In office • Internship • Bachelor's Degree • Danbury
Apply
$63k per year • In office • 1+ year exp • Bachelor's Degree • Danbury
Apply
Snowflake Architect 2 days ago
≈ $125k – $249k per year (Estimated) • In office • Danbury
Databases
Snowflake
Apply
See all jobs
This is one of many
1,830,731 more open roles from verified company boards, updated every day.