Project Engineer III (Clearance Required)

Sierra Space Corporation$119K — $163K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in a related field or equivalent work experience/molecular Masters + 3 years experience
  • Typically 5+ years of related experience or Masters + 3 years of experience
  • Emerging expertise in Systems Engineering principles and practices
  • Knowledge of requirements management and functional requirements parsing
  • Understanding of systems architecture and integration, along with Verification and Validation (V&V) principles
  • Ability to communicate effectively with technical subject matter experts
  • Active Secret U.S. Security Clearance required

Responsibilities

  • Lead and execute technical projects that integrate engineering solutions
  • Oversee the design, development, and implementation of engineering projects
  • Provide technical estimation support for project planning
  • Conduct trade studies and lead technical evaluations
  • Mentor junior engineers and provide technical guidance
  • Manage supplier coordination and develop Statements of Work
  • Communicate project status and technical concepts across teams

Benefits

  • Innovative work environment focused on space-based technology
  • Opportunity for professional growth and continuous improvement
  • Collaboration with cross-functional teams and exposure to diverse projects
  • Mission-driven culture that aligns with national security objectives
Full Job Description
About the Role
The Project Engineer III role focuses on leading and executing technical projects, ensuring the successful integration of engineering solutions, and driving innovation within the team. This position requires a strong technical foundation, advanced engineering expertise, and the ability to collaborate effectively with cross-functional teams. The role involves overseeing the design, development, and implementation of engineering projects, ensuring they meet technical specifications and quality standards as well as cost & schedule constraints. This role serves as a bridge between the Engineering and Program Office on a given project.

In this role, you will lead small cross-functional teams and projects, effectively balancing technical, cost, and schedule constraints while overseeing the design, development, and implementation of engineering projects. You will provide technical estimation support to develop Basis of Estimates and ensure projects meet technical specifications and quality standards. Your responsibilities will include conducting trade studies, leading technical evaluations, and providing technical guidance and mentorship to junior engineers. Additionally, you will manage supplier coordination by developing and managing Statements of Work, coordinating with contracts and quality teams, and supporting Risk and Opportunity management on the project. You will communicate and coordinate across engineering and functional teams, delivering clear verbal and written communication of technical concepts, plans, and actions, and effectively communicating project status to both technical and programmatic audiences. Driving innovation and continuous improvement within the engineering team will be a key focus, as will serving as the bridge between Engineering and Program offices to resolve conflicts and represent the voice of all stakeholders, including support functions and customers.

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.

Ground Systems:

  • Design and maintain ground system architectures including mission operations centers, ground data systems, ground communication networks, and interfaces with launch site infrastructure and tracking stations
  • Develop ground software and tools for vehicle monitoring, telemetry processing, command & control, and support pre-launch checkout, mission simulations, and ground rehearsals
  • Coordinate ground segment integration with flight systems and ensure end-to-end operational readiness
  • Varying scope by level:
    • SE II focuses on subsystem-level tasks and test support;
    • SE III owns segment integration and anomaly resolution;
    • Sr SE defines architecture and leads cross-functional ground system initiatives


Requirements & Verifications:
  • Derive, decompose, and manage technical requirements from stakeholder needs through system, subsystem, and component levels; manage requirements baseline changes and impact assessments across the product lifecycle
  • Develop verification and validation strategies including analysis, inspection, demonstration, and test methods; author verification procedures, test plans, and acceptance criteria aligned to requirements traceability
  • Lead requirements reviews, trade studies, and technical audits to ensure completeness, consistency, and compliance
  • Varying scope by level:
    • SE II executes verification activities and documents results;
    • SE III leads V&V planning and closure;
    • Sr SE owns requirements architecture and approval authority for complex changes


Space Vehicle Integration:
  • Plan and execute hardware and software integration activities for spacecraft buses, payloads, and subsystems; coordinate interface control documents (ICDs) and manage technical interfaces across vehicle elements
  • Support integration and test campaigns including functional checkout, environmental testing, and system-level qualification; resolve integration anomalies and troubleshooting across mechanical, electrical, thermal, and software domains
  • Collaborate with manufacturing, quality, and mission assurance teams to ensure flight readiness
  • Varying scope by level:
    • SE II supports hands-on integration tasks and test readiness;
    • SE III leads integration planning and anomaly resolution;
    • Sr SE defines integration strategy and owns vehicle-level technical risk

Minimum Qualifications:
  • Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree or Masters +3 yrs experience).
  • Typically 5+ years of related experience (or Masters + 3 years of experience).
  • Emerging expertise in Systems Engineering principles and practices, including a thorough understanding of the systems development lifecycle.
  • Knowledge of requirements management, functional requirements parsing, derivation, and allocation.
  • Knowledge of systems architecture, systems integration, and Verification and Validation (V&V) principles.
  • Emerging ability to work and communicate with technical and specialty subject matter expert engineers to drive systems engineering products.
  • An active Secret U.S. Security Clearance is required


Preferred Qualifications:

  • Prior experience with increasing responsibilities in project management.
  • Professional Certifications: Project Management Professional (PMP) certification.
  • Experience with systems engineering and integration.
  • Proficiency in project management software and tools (e.g., MS Project, Primavera).
  • Experience with CAD software and engineering design tools.
  • Knowledge of industry standards and regulations.
  • Experience in product lifecycle management (PLM).
  • Familiarity with Agile and Lean methodologies.
  • Strong analytical and decision-making skills.
  • Ability to manage multiple projects simultaneously.
  • Experience in developing and managing project budgets.
  • Demonstrated ability to drive innovation and continuous improvement initiatives.


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 current/active 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.

About Sierra Space Corporation

Sierra Space Corporation Careers

Joining Sierra Space Corporation presents an unparalleled opportunity to become part of a leading team of professionals dedicated to pioneering innovations in the aerospace sector. As one of the most forward-thinking companies in space technology, Sierra Space Corporation offers a variety of job opportunities that cater to a spectrum of skills and experiences.

Explore Career Opportunities

Sierra Space Corporation is actively hiring, seeking individuals who are passionate, driven, and ready to contribute to groundbreaking projects. With a commitment to diversity and leadership development, the company fosters an environment where all employees can thrive.

Professional Growth and Development

At Sierra Space Corporation, career growth is a cornerstone of their employment philosophy. Professionals at all levels are encouraged to engage in continuous learning, leadership training, and professional development workshops, ensuring that their career trajectory is always ascending.

Innovative Work Environment

Innovation is at the heart of Sierra Space Corporation. The team is tasked with developing advanced technologies that redefine possibilities in space exploration and satellite technology. Employees are encouraged to bring creative solutions and innovative thinking to the table every day.

Internship Programs

For students and recent graduates, Sierra Space Corporation offers robust internship programs that provide hands-on experience in aerospace technology and business operations. Internships are a gateway to full-time employment and a great way to build a resume while learning from seasoned professionals.

Benefits and Company Culture

Sierra Space Corporation is renowned for its inclusive culture and comprehensive benefits package designed to support the well-being and financial security of every team member. Benefits include health, dental, and vision insurance, as well as unique perks like flexible working conditions and family leave options.

Networking and Professional Connections

The company places a high value on networking, providing numerous opportunities for employees to connect with industry leaders and innovators. Through events, seminars, and collaborative projects, team members can build valuable relationships that enhance their careers and personal growth.

Diversity and Inclusion

Diversity is more than just a policy at Sierra Space Corporation; it is an integral part of the company's identity. Inclusive hiring practices and diversity training ensure a workplace where everyone’s contributions are valued and where everyone has the chance to succeed.

Applying for a Position

To apply for a position at Sierra Space Corporation, prospective candidates should prepare their resumes to highlight relevant experience and skills. The interview process is designed to assess not only expertise but also a fit with the company’s culture and values. Job seekers can explore available positions and submit applications through the Sierra Space Corporation careers page.

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Join the Sierra Space Corporation Team

Search open positions that match your skills and interests. Sierra Space Corporation looks for passionate, curious, creative, and solution-driven team players. Explore the exciting and rewarding opportunities that await at Sierra Space Corporation.

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