Fathom 4

Software Developer

Bachelor's degree in a quantitative field; 3-6 years software design and development; C++/Java; on-site in North Charleston, SC; active Secret clearance with potential TS in future.

Systems Engineer IV

Ten+ years IT experience with a Master’s degree; DOD C5ISR system engineering; on-site North Charleston, SC; active Secret clearance with potential for Top Secret in future.

Project Management Analyst (PMA)

Project Management Analyst

Bachelor’s degree in Business or Management; 3 years in engineering/science management, operations research or financial analysis; strong MS Office including Excel; ability to communicate with stakeholders; willingness to obtain Secret clearance.

Software Engineer - Test Automation

Software Engineer

0-3 years in computerized systems; BS in CS/IT/Cybersecurity or engineering; ABET-accredited; US citizen; Secret clearance required.

Software Integration Engineer

Three+ years of software integration/ development experience; BS in Engineering/CS or related IT field; Sec+ or equivalent experience allowed in lieu of degree.

Fathom 4, LLC

Technical Writer

Bachelor's degree in English/Journalism/Technical Writing; 5 years USMC documentation experience; Secret clearance required; on-site in Charleston, SC; DoD documentation experience.

Title	Location	Date
Software Developer Full Time · 3+ YOE North Charleston, South Carolina, United States · Onsite	North Charleston, South Carolina, United States Onsite	Apr 28, 2026
Systems Engineer IV Full Time · 10+ YOE North Charleston, South Carolina, United States · Onsite	North Charleston, South Carolina, United States Onsite	Apr 6, 2026
Project Management Analyst (PMA) Full Time · 3+ YOE North Charleston, South Carolina, United States · Onsite	North Charleston, South Carolina, United States Onsite	Mar 14, 2026
Software Engineer - Test Automation Full Time · 0+ YOE North Charleston, South Carolina, United States · Onsite	North Charleston, South Carolina, United States Onsite	Mar 5, 2026
Software Integration Engineer Full Time · 3+ YOE N. Charleston, South Carolina, United States · Onsite	N. Charleston, South Carolina, United States Onsite	Mar 2, 2026
Technical Writer Full Time · 5+ YOE North Charleston, South Carolina, United States · Onsite	North Charleston, South Carolina, United States Onsite	Feb 12, 2026

Activities	Systems engineeringHardware integrationTechnical writingPrototype developmentPerformance analysis
Headquarters	US
Industries	DefenseEngineering
Name	Fathom 4
Employees	30
Type	Private
Tagline	Engineering and integration services for military defense systems.
Founded	2,012
Website	fathom4.com

Fathom 4

About Fathom 4