At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.
Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.
Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.
We are mission-driven, and together, we are an extraordinary team.
About the RoleThe Executive Assistant II provides high-level administrative support to senior executives by managing calendars, scheduling meetings, and coordinating travel arrangements. The Executive Assistant II plays a crucial role in ensuring the efficiency and effectiveness of the executive team by handling a variety of administrative tasks and acting as a key point of contact. This role requires excellent communication skills, attention to detail, and the ability to work collaboratively in a fast-paced environment. Additionally, the Executive Assistant II is expected to take on more complex tasks and responsibilities, including event planning and project coordination.The role involves managing and maintaining executives' calendars by scheduling and coordinating meetings, appointments, and events, as well as arranging and coordinating travel plans, including domestic and international flights, accommodations, and transportation. It includes coordinating VIP visitors, customer meetings, and events, preparing and editing correspondence, communications, presentations, meeting briefs, and other documents, and handling incoming and outgoing communications such as phone calls, emails, and mail. Additionally, the responsibilities involve assisting with the preparation of reports, meeting agendas, and minutes while adhering to compliance standards, including expense report preparation and coding allocation, and handling direct and indirect purchase requests. The position also requires maintaining and organizing files, records, and documentation, collaborating with other administrative staff to ensure smooth office operations, and performing other duties as assigned by executives.About You
Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission.
We’re looking for team members who align with our values, mission and goals – while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.
Minimum Qualifications:
2-4 years of EA experience supporting executive(s) in a professional services organization or the aerospace industry.
Proficient in Microsoft Office, including Outlook, Excel, Word, PowerPoint, and Teams.
Previous experience with travel management software such as Concur or Egencia.
Ability to multitask, work under pressure, and think critically while retaining accuracy.
Strong interpersonal skills, creativity, thoughtful business judgment, and professional maturity.
High energy level, strong communication skills, intellectual curiosity.
Ability to move tasks along and follow up is critical.
Desire to collaborate with colleagues throughout the company.
Motivated, flexible, team-player spirit.
Ability to handle confidential information with discretion.
Proactive and able to work independently with minimal supervision.
The ability to obtain and maintain a Secret U.S. Security Clearance is required.
Preferred Qualifications:
Certification: Administrative Assistant Certification, Certified Administrative Professional, or related certification.
Event planning experience.
Project management skills.
Knowledge of document management systems like SharePoint, One Note, Adobe, and Visio.
Basic understanding of financial and budgeting processes to assist with expense reports and budget tracking.
Compensation:
Pay Range:
$38.38 - $52.77Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.
IMPORTANT NOTICE:
This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.
At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.
We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.
Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.
Application Deadline: This role will remain posted until a qualified pool of candidates is identified.
Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.
Sierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.
Skills Required
- 1+ years of executive assistant experience supporting executives in a professional services organization or the aerospace industry.
- Proficient in Microsoft Office (Outlook, Excel, Word, PowerPoint, Teams).
- Experience with travel management software such as Concur or Egencia.
- Ability to multitask, work under pressure, and think critically while retaining accuracy.
- Strong interpersonal skills, creativity, thoughtful business judgment, and professional maturity.
- High energy level, strong communication skills, intellectual curiosity.
- Ability to move tasks along and follow up effectively.
- Desire to collaborate with colleagues throughout the company; motivated, flexible, team-player spirit.
- Ability to handle confidential information with discretion.
- Proactive and able to work independently with minimal supervision.
- Ability to obtain and maintain a Secret U.S. Security Clearance.
- U.S. Citizenship (required due to security clearance requirements).
- Administrative Assistant Certification or Certified Administrative Professional (preferred).
- Event planning experience (preferred).
- Project management skills (preferred).
- Knowledge of document management systems like SharePoint, OneNote, Adobe, and Visio (preferred).
- Basic understanding of financial and budgeting processes to assist with expense reports and budget tracking (preferred).
Sierra Space Compensation & Benefits Highlights
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Retirement Support — Feedback suggests the 401(k) program offers a notably strong employer match that stands out in the overall package. Employer-verified materials and job postings consistently position retirement savings as a competitive strength.
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Healthcare Strength — Core medical, dental, and vision coverage is consistently available, with options like PPO and HDHP plus HSA/FSA access. Several sources also note company HSA contributions and included life/disability coverage, underpinning solid health protection.
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Parental & Family Support — Observations point to formal parental leave and family medical leave offerings, with some references to company-sponsored family events. These elements indicate meaningful support for employees with caregiving responsibilities.
Sierra Space Insights
What We Do
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.
Why Work With Us
At Sierra Space, you’ll find a supportive, respectful and upbeat culture where your opinions matter and your personal contributions have impact. If you’re thinking about your own next frontier, we’d love to help you explore it.
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