---
title: "Critical Systems LLC"
canonical: "https://www.metaintro.com/company/critical-systems-llc"
language: "en"
industry: "Manufacturing"
website: "https://criticalsystemsllc.com/"
open_roles: 9
---

# Critical Systems LLC

Critical Systems was founded in 2008 by four friends with the belief that they could contribute to the betterment of buildings within the DC metro region. Since its founding, the company has delivered on their vision, providing professional services across the entirety of the District, Maryland, New England, and Virginia.

## Open roles

- [Internship Application - Building Automation Systems/Controls](https://www.metaintro.com/job/internship-application-building-automation-systems-controls-at-e8a4e15e-4f7f-5745-8da5-1bb882bc922d) — Rockville, Maryland, United States, On-site
- [Internship Application - Mechanical Engineer](https://www.metaintro.com/job/internship-application-mechanical-engineer-at-critical-systems-llc-6726b280-a277-5938-9953-dadfc39334eb) — Rockville, Maryland, United States, On-site
- [Internship Application - Project Coordinator](https://www.metaintro.com/job/internship-application-project-coordinator-at-critical-systems-llc-252a22f1-1ec2-59f8-909d-53c3c30b7005) — Rockville, Maryland, United States, On-site
- [Controls Engineer](https://www.metaintro.com/job/controls-engineer-at-critical-systems-llc-46fea443-2980-53ea-ac2f-00d17344ac27) — Rockville, Maryland, United States, Hybrid
- [Sales Engineer - Controls](https://www.metaintro.com/job/sales-engineer-controls-at-critical-systems-llc-93a8ba27-a339-5665-a1f3-330e73249c99) — Rockville, Maryland, United States, On-site
- [Project Management Engineer (HVAC)](https://www.metaintro.com/job/project-management-engineer-hvac-at-critical-systems-llc-7e60ce14-67fa-5ef2-b56e-32b01af4527e) — Rockville, Maryland, United States, On-site
- [Applications Engineer (HVAC)](https://www.metaintro.com/job/applications-engineer-hvac-at-critical-systems-llc-7c4310b6-0d94-5e9e-9a25-6428181c0d25) — Rockville, Maryland, United States, On-site
- [Project Coordinator](https://www.metaintro.com/job/project-coordinator-at-critical-systems-llc-7f9c84ad-69ea-5f9b-af98-9128f57837bb) — Rockville, Maryland, United States, On-site

[View all 9 roles](https://www.metaintro.com/company/critical-systems-llc/jobs/all)

## Skills they ask for

Most frequent across open postings.

### Tech stack

- **CMS:** WordPress
- **Libraries:** Bootstrap, GSAP, Swiper, jQuery
- **Analytics:** Google Analytics 4

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## Questions about Critical Systems LLC

### Is Critical Systems LLC hiring?

Yes. As of November 5, 2026, Critical Systems LLC has 9 open roles on Metaintro. 3 were posted in the last 30 days. The most are in Science, Technology, Engineering, and Math (4), Sales (2), and Architecture and Construction (1).