Sierra Space

HQ
Louisville, Colorado, USA
Total Offices: 4
1,600 Total Employees
Year Founded: 2021
Defending Today. Defining Tomorrow.
Securing The Freedom of Operations

Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation’s most critical missions.

With more than three decades of heritage and a record of flight-proven success in space, Sierra Space is trusted by U.S. National Security, Civil customers, and global allies. Our technologies safeguard our nation, sustain human exploration in space, and ensure the freedom of operations beyond Earth.

Sierra Space is defining the new era of Space Defense, strengthening deterrence today and preserving freedom of action for generations to come.

Sierra Space Offices

OnSite Workspace

Employees work from physical offices.

Typical time on-site: None
HQLouisville, Colorado, USA
Durham, North Carolina, USA
Madison, Wisconsin, USA
Exploration Park
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What the Team is Saying

“My time at Sierra Space has been amazing. It is a fast paced exciting environment where brilliant minds are converging on projects that can truly change human existence for the better.”
Dylan, Talent Acquisition Partner, Transportation
Dylan, Talent Acquisition Partner, Transportation
“I never planned to find a company so early on into my career path that was a lifelong career kind of position. However, I found that here at Sierra Space! I am a valued member of a team that invests in their employees.”
Sarah, Talent Acquisition Partner
Sarah, Talent Acquisition Partner
"Through my career, my management has continually ensured that I am working on projects that I found interesting, challenging, and enjoyable. My management has my best interests in mind and they want me to be successful. Additionally, my managers have repeatedly fought for my promotion and empowerment to greater responsibility."
Chris , DCCS Structures Engineer
Chris , DCCS Structures Engineer
"Sierra Space values its employees and offers growth opportunities. The collaborative work environment is stimulating and rewarding. I am proud to be a part of this company and highly recommend it to anyone seeking a career in the space industry."
Jack
Jack, Sr Systems Engineer
Jack, Sr Systems Engineer

Articles We're In

Photo: Shutterstock
Abel Rodriguez Abel Rodriguez
Published on April 09, 2025

13 Aerospace Companies in Colorado to Know

These aerospace companies have provided significant contributions to world governments and other projects like the International Space Station.

Brigid Hogan Brigid Hogan
Updated on August 15, 2025

12 Companies Hiring Software Engineers in Colorado

Job seekers can find a new adventure in software engineering at these Centennial State companies.

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Brigid Hogan Brigid Hogan
Updated on October 17, 2025

How to Find Your Dream Software Engineering Job — and Thrive

Identifying the right role is the first step; keeping engaged is just as important. We interviewed 10 software engineers to learn how they found, landed and stay engaged in their roles.

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Technology We Use

C#
C#
LANGUAGES
C++
C++
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Java
Java
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Python
Python
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DOORS
DOORS
DATABASES
C
C
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HTML
HTML
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Bash
Bash
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DocuSign
DocuSign
CRM
MailChimp
MailChimp
EMAIL
Wordpress
Wordpress
CMS
Staffbase
Staffbase
EMAIL
Sprout Social
Sprout Social
CMS