# E3R, Inc. jobs and careers

> 0 open roles at E3R, Inc. as of October 23, 2026. Source: https://www.thejobsmap.com/company/e3r-inc

E3R is a service-disabled veteran-owned small business that provides engineering and program management services to the department of defense and department of homeland security.

## Key facts

| | |
|---|---|
| Open roles | 0 |
| Headquarters | San Diego, CA, United States |
| Founded | 2011 |
| Employees | 125 |
| Industries | Business Development, IT Services, Project Management, Software Engineering |
| Website | https://e3rinc.com |

## Leadership

- Mark Tierney, Owner and President
- Lorraine Banner, Vice President & Chief Business, Administration & Financial Officer
- Jordan Garcia, Senior System Engineer

## Common questions

### Is E3R, Inc. hiring right now?

E3R, Inc. has no open roles listed as of October 23, 2026. Roles appear here as soon as they are posted on E3R, Inc.'s careers site.

### Where is E3R, Inc. headquartered?

E3R, Inc. is headquartered in San Diego, CA, United States and was founded in 2011.

### Who leads E3R, Inc.?

Mark Tierney, Owner and President, is at the top of E3R, Inc.'s org chart.

### How do I apply for a job at E3R, Inc.?

Pick a role on E3R, Inc.'s TheJobsMap page and select Apply. Every listing links to the original posting on E3R, Inc.'s own careers site, so you apply directly with the employer.