S3I Engineering
Engineering Services
S3I Engineering provides specialty engineering services, systems integration, and operational support to government and defense clients. Our technical expertise spans multiple facets of the Software, Systems, Cyber, and Hardware Engineering disciplines.
Is S3I Engineering hiring?
Yes. As of November 3, 2026, S3I Engineering has 4 open roles on Metaintro. 2 were posted in the last 30 days.
Open roles
Newest first. Pay shown when the posting lists it.
RoleLocationSetupPayPosted
- Systems Engineer IScience, Technology, Engineering, and MathLexington Park, Maryland, United States · On-site · $90K – $130K/yrLexington Park, Maryland, United StatesOn-site$90K – $130K/yrSep 28, 2026
- Systems Engineer IIScience, Technology, Engineering, and MathLexington Park, Maryland, United States · On-site · $100K – $215K/yrLexington Park, Maryland, United StatesOn-site$100K – $215K/yrSep 12, 2026
- Systems Engineer I (Full-Time, On-Site)Science, Technology, Engineering, and MathLexington Park, Maryland, United States · $90K – $130K/yrLexington Park, Maryland, United States—$90K – $130K/yrSep 12, 2026
- Systems Engineer II (Full-Time, On-Site)Science, Technology, Engineering, and MathLexington Park, Maryland, United States · $100K – $215K/yrLexington Park, Maryland, United States—$100K – $215K/yrSep 12, 2026
Hiring pattern
How fast S3I Engineering is adding roles, and how they're set up.
New roles each monthRoles first posted in the month
2
2
0
SeptemberOctoberNovember
Skills they ask for
Most frequent across open postings.
Most requested skills
- Git
- Linux troubleshooting
Tech stack
- CMS
- WordPress
- Libraries
- jQuery
Company facts
- Industry
- Engineering Services
- Sector (NAICS)
- Professional, Scientific, and Technical Services
- Peer
- Engineering Design
- Website
- s3iengineering.com
- Careers
- s3iengineering.com/careers
Similar companies
Companies in the same industry as S3I Engineering that are hiring now.
Questions about S3I Engineering
- Is S3I Engineering hiring?
- Yes. As of November 3, 2026, S3I Engineering has 4 open roles on Metaintro. 2 were posted in the last 30 days. The most are in Science, Technology, Engineering, and Math (4).
- What skills does S3I Engineering look for?
- Its open roles most often ask for Git and Linux troubleshooting.