Principal Systems Engineer
Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Jun 16, 2026. Twenty-Six Defense scores B on the Alion truth index.
Job Summary
The Principal Systems Engineer performs requirements analysis and management, technical planning, systems level design, systems integration, verification and validation, cost and risk management, and supportability and effectiveness analyses for total systems. Also performs functional analysis, timeline analysis, detail trade studies, requirements interface definition studies to translate customer requirements into systems specifications. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance, and disposal. Ensure the logistical and systematic conversion of customer or product requirements into total system solutions that acknowledge technical, schedule and cost constraints.
Responsibilities and Tasks
Perform requirements management, analysis, and allocations using tools such as DOORS.
Conceptualize, analyze, design, and oversee complex systems level architecture design.
Perform modeling and simulation at the system level including use of model-based system engineering tools
Recommends tools to improve systems engineering design of a product and procedures.
Develop systems specifications, master test plans, and other necessary artifacts.
Provide inputs into the integrated master schedules and track program progress.
Generate systems engineering artifacts in support of each program.
Lead cost estimates to support engineering activities.
Assist in verification and validation responsibilities.
Fully understand internal systems engineering procedures and mentor entry level engineers.
Other related duties assigned by supervisor.
Education, Experience/Knowledge & License/Certification
Specific Degree Field Required: Aeronautical, Computer Science, Electrical, Electronic, Mechanical, Software or Systems Engineering.
Master’s degree plus 7 years’ experience OR Bachelor’s degree plus 9 years’ experience.
Eligible to obtain Security Clearance.
Training Pre-requisites (Within One Year of Taking Position):
ESD
Safety Training, as dictated by Safety Department
Advanced DOORS requirements management training
Systems Engineering Simulation and Modeling concepts
Systems Engineering methods and procedures
Desired Skills and Abilities
DOORS requirements management tool suite.
Microsoft Office including the use of Excel and other desktop tools.
Microsoft Projects.
Systems level analysis tools such as MATLAB or equivalent.
Systems level block diagram capture tools such as Visio.
CAMEO Enterprise Architecture
Experience with EO/IR systems
Other related systems engineering tools.