Flight Operations Controller Jobs (NOW HIRING)

Sierra Space Careers:
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 Role
The ECLS (Environmental Control & Life Support) Flight Controller serves as the real-time systems engineer responsible for Dream Chaser spacecraft thermal management and environmental control systems during mission operations. Operating from the Taylor Mission Control Center in Louisville, CO, the ECLS Flight Controller monitors spacecraft telemetry, executes procedures, commands thermal control systems, and provides real-time technical decisions to ensure spacecraft environmental health and mission success. They represent the ECLS subsystem within the integrated Flight Control Team (FCT), working alongside 10 other console positions under the direction of the Flight Director. The ECLS Flight Controller monitors real-time telemetry, analyzes system performance, troubleshoots anomalies, executes nominal and contingency procedures, and coordinates with Engineering Support Room (ESR) personnel to resolve technical issues. During missions, ECLS provides 24/7 coverage through rotating 9-hour shifts, maintaining spacecraft thermal control and environmental systems.
This role embodies the seven Foundations of Flight Operations-Discipline, Competence, Confidence, Responsibility, Toughness, Teamwork, and Vigilance-and operates under the principle that "spaceflight will never tolerate carelessness, incapacity, and neglect."
In this role, you will monitor and command spacecraft thermal control, active cooling, heat rejection, and environmental conditioning systems via real-time telemetry during mission operations. You will execute nominal and contingency procedures using Epsilon3 and InControl systems, analyze telemetry trends to identify anomalies, and communicate clearly on Flight Control Team voice loops. Supporting pre-mission planning by reviewing flight plans and developing console products will be a key responsibility, alongside participating in simulations to maintain proficiency and certification. You will coordinate with other console positions (EPS, AVIONICS, MECH, PROP) on integrated system issues, provide go/no-go recommendations to the Flight Director, and interface with ESR Responsible Engineers for technical troubleshooting. Developing ECLS procedures, flight rules, and display pages will be essential, and you will investigate thermal control system anomalies and develop corrective actions.
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:

• Requires Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Thermal Engineering, or related field (or equivalent work experience in lieu of degree or Masters + 3 years experience).

• Typically 5+ years of related experience in thermal systems, spacecraft operations, aerospace test operations, or related technical field (or Masters + 3 years of experience).

• Strong understanding of thermodynamics, heat transfer, fluid mechanics, and thermal control system principles.

• Knowledge of requirements management, system integration, verification/validation principles, and systems development lifecycle.

• Ability to analyze complex technical data and make sound decisions under time pressure in dynamic, real-time operations environments.

• Clear, concise verbal and written communication skills; ability to articulate technical issues to diverse audiences including Flight Director and Flight Control Team.

• Demonstrated ability to work effectively in multi-disciplinary teams with strong interpersonal and collaboration skills.

• High degree of rigor in executing procedures and documenting actions; commitment to operational excellence and attention to detail.

• Ability to work rotating 9-hour shifts for 24/7 mission coverage; on-site presence at Louisville, CO required during missions.

• Ability to pass and maintain FAA medical screening requirements via certified Aviation Medical Examiner

Preferred Qualifications:

• Master's degree in Mechanical Engineering, Aerospace Engineering, or related field.
• Direct experience with spacecraft thermal control systems including active cooling, heat rejection, thermal loops, and environmental conditioning.
• Previous experience as a flight controller, mission controller, test conductor, or real-time operations role in space operations or aerospace test environments
• Background in spacecraft Environmental Control and Life Support Systems (ECLSS) for crewed vehicles or cargo spacecraft.
• Experience with command and control systems (InControl or similar) and procedure execution platforms (Epsilon3 or similar).
• Experience interpreting real-time telemetry, commanding spacecraft systems, and troubleshooting anomalies in operational environments.
• Understanding of spacecraft subsystems and their thermal interfaces (EPS, avionics, propulsion, mechanical systems).
• Knowledge of flight rules, operational limits, go/no-go decision processes, and mission operations protocols.
• Experience developing operational procedures, console handbooks, flight rules, or training materials for mission operations.
• Understanding of project management methodologies including risk management and technical performance tracking.
• Excellent troubleshooting and root cause analysis skills with ability to extrapolate beyond known scenarios and make educated decisions with incomplete information.
• Demonstrated composure and sound judgment in high-stress situations; ability to adapt to fast-paced, dynamic, and ambiguous operational environments.
• Embodiment of the seven Foundations of Flight Operations: Discipline, Competence, Confidence, Responsibility, Toughness, Teamwork, and Vigilance.

Compensation:
Pay Range:
$119,064.00 - $163,713.00
Your 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 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.
Elevate Your Career
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.