Test Engineer III

snc· Sierra Nevada Corporation
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📍 Hagerstown, MDFull time💰 USD 99K–136K
Full timeIn officeSierra Nevada Corporation

About this role

Do you have an eye for detail and enjoy working with amazing products and tools? Join us in championing and protecting explorers and heroes! As a Test Engineer III, you will lead the development and execution of comprehensive test plans for advanced aerospace and defense systems. This role requires in-depth expertise in testing methodologies and the ability to manage multiple test projects simultaneously, ensuring product compliance and performance.

Our testing approach evolves with the design maturity, extending from initial stages through to post-production follow-ups on subsequent articles.

The role involves extensive system testing, aimed at assessing a broad spectrum of mission equipment such as communication, computing, navigation, and surveillance systems, to ensure they meet design and functionality standards.

Please note, this role does not require any knowledge or skills related to software or automation testing.

The Mission Solutions and Technologies (MST) business area provides affordable, turn-key command/control, communications, integrated ISR, force protection and security solutions worldwide. The MST team has a long legacy of supporting the Department of Defense, Department of Homeland Security, commercial and international customers with years of experience in platform operations, engineering and full lifecycle management across domains – air, land, sea, space and cyber.

Responsibilities:

Planning & Documentation

  • Develop and maintain flight test plans, test procedures, and test reports in accordance with program and customer requirements.

  • Support program-level test planning, including strategies, schedules, risk identification, and resource coordination.

Hands-on Testing

  • Execute developmental, qualification, and flight test activities for aircraft mission systems and avionics.

  • Operate RF and electronic test equipment, including spectrum analyzers, network analyzers, multi-meters, data acquisition units, and various transducers and accelerometers.

Integration & Troubleshooting

  • Support aircraft integration, subsystem checkout, and test anomaly investigation and resolution.

  • Participate in Test Readiness Reviews (TRR), Safety Review Boards, and post-test data analysis.

Collaboration & Leadership

  • Interface with systems engineering, avionics, software, and program management to ensure test activities align with technical, cost, and schedule objectives.

  • Provide technical leadership and mentoring to junior test engineers.

Qualifications You Must Have:

  • Bachelor’s degree in Electrical Engineering, Aerospace Engineering, Systems Engineering, or a related technical field.

  • 6+ years of experience in aerospace or defense test engineering.

  • Higher level relevant degree may substitute for experience.

  • Advanced understanding of test and evaluation principles and methodologies.

  • Proven knowledge of engineering principles and practices.

  • Experience working in multi-disciplinary design and development teams.

  • Experience with planning, conducting and documenting Verification and Validation (V&V) activities.

  • Ability to read schematics, use service manuals, follow test procedures, and use logical trouble shooting techniques.

  • FAA Class III Medical Certification required. Candidates without current certification must obtain it prior to hire.

  • Ability to complete Altitude Chamber training and qualification

  • Hands-on experience with RF and electronic test equipment (spectrum/network analyzers, multi-meters, data acquisition units, transducers, accelerometers).

  • Experience developing and executing ground and flight test plans and procedures.

  • Strong background in requirements management (derivation, traceability, verification, and selloff).

  • Excellent technical documentation and communication skills.

  • Familiarity with aircraft avionics systems, architectures, and integration.

  • Active United Stated Top Secret  Security Clearance

  • Ability to obtain Sensitive Compartmented Information (SCI) eligibility.

Qualifications We Prefer

  • Experience supporting DoD programs, ISR platforms, and/or missionized aircraft

  • Familiarity with MIL-STD and aerospace standards (e.g., DO-160, MIL-STD-810, MIL-STD-461).

  • Experience supporting FAA and/or military (DoD) certification efforts.

  • Knowledge of requirements management tools (DOORS, Jama).

  • Prior experience in a lead test or integration IPT role.

  • Familiarity with Product and Quality Assurance principles and experience in generation and disposition of product non-conformances.

  • Experience with various testing equipment, standards, and methodologies, including manual and automated testing.

Essential Functions:

  • Ability to work on a computer for extended periods.

  • Ability to lift up to 25 lbs regularly.

  • Occasional travel may be required.

  • Ability to work in an office, lab, hangar, or offsite environment.

This posting will be open for application for a minimum of 5 days and may be extended based on business needs.

Estimated Starting Salary Range: $98,633.53 - $135,621.11. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

SNC offers 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, tuition reimbursement, and more.

IMPORTANT NOTICE:

This position requires current/active Top 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.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.

Frequently Asked Questions

What is the salary for the Test Engineer III role at snc?
The listed salary for this Test Engineer III position at snc is USD 99K–136K. This is an Full time role.
Where is the Test Engineer III position at snc located?
This Test Engineer III role at snc is based in Hagerstown, MD. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Test Engineer III role at snc full-time or part-time?
This is listed as a Full time position. It is posted as a Test Engineer III role in the Sierra Nevada Corporation department at snc.
Which team or department does the Test Engineer III at snc belong to?
This Test Engineer III position is part of the Sierra Nevada Corporation department at snc. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Test Engineer III position at snc?
Click the "Apply Now" button on this page. You will be redirected to snc's official application portal hosted on workday where you can submit your application directly.
When was the Test Engineer III job at snc posted?
This Test Engineer III position at snc was posted on Aug 14, 2026. Apply as soon as possible — early applications are often reviewed first.
Test Engineer III
snc · 💰 USD 99K–136K
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