Senior Principal Mission Engineer with Security Clearance

Oasys
Chantilly, Virginia 20151 United States  View Map
Posted: May 30, 2026
  • Full Time
  • Federal Government
  • Summary

    Senior Principal Mission Engineer OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for Senior Principal Mission Engineer to support our customer in Chantilly, VA. Summary Make a difference for national security by joining a team of dedicated professionals who assist the Space Development Agency in developing and deploying the next generation of satellites and ground systems for missile warning (MW), missile tracking (MT) and missile defense (MD). Our Tranche 3 Program Integration team has a need for a tracking Mission Engineer with experience analyzing space and ground system architectures through mission thread development and simulation. We are looking for innovative, creative, and highly motivated individuals to mature models and build scenarios (GRMs and DRMs) that effectively capture system of systems effects in complex operational environments. Candidate will provide systems engineering and integration expertise in support of the SDA T3 Tracking mission capabilities. Candidate will assess integrated component program designs (Space Vehicles and Ground Systems) and develop verification and validation approaches against the Enterprise Requirements Document (ERD). Major duties of the position include: Developing Requirements Verification Trace Matrix (RVTM) for the Enterprise Requirements Document (ERD).
    Plan data aggregation from component programs, SDA and T3PI analysis to show compliance with the ERD.
    Reviewing government scenarios from PWSA enterprise and prior tranches to ensure that T3 scenarios are consistent.
    Developing and briefing data packages that provide analysis results to inform the government decision-makers.
    Collaborating with prime contractors, other team contractors, government civilians, FFRDC, SETA and members of the SDA.
    Required Experience, Skills and Attributes: Master's Degree in Math, Science or Engineering with 15+ Years of demonstrated system engineering and integration experience with space, ground, operations and sustainment segments of DoD or NRO programs with a proven delivery record or a bachelor's degree in Math, Science or Engineering with 17+ Years of demonstrated experience.
    Experience working across space and ground segment organizations to coordinate and identify system requirements that ensure end-to-end mission performance requirements are met.
    Strong understanding of modeling, simulation, and mission analysis techniques and tools.
    Experienced at self-starting, seeking solutions, and working well in a team environment
    Demonstrated experience working with SDA/DoD/NRO customers in an acquisition environment, with space and/or ground systems.
    Excellent verbal and written communication skills, as well as organizational and interpersonal skills
    Experience working Space Mission V&V at Mission level
    Desired Requirements Overhead Persistent InfraRed (OPIR), other missile defense or related space-based ISR experience.
    Experience analyzing System Availability (AO or AF)
    Security Clearance Active TS/SCI clearance About OASYS, INC.: Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs. Benefits: OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Heath & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401-K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short-term/Long-term Disability. www.oasys-incorporated.com
  • Job Description

    Senior Principal Mission Engineer OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for Senior Principal Mission Engineer to support our customer in Chantilly, VA. Summary Make a difference for national security by joining a team of dedicated professionals who assist the Space Development Agency in developing and deploying the next generation of satellites and ground systems for missile warning (MW), missile tracking (MT) and missile defense (MD). Our Tranche 3 Program Integration team has a need for a tracking Mission Engineer with experience analyzing space and ground system architectures through mission thread development and simulation. We are looking for innovative, creative, and highly motivated individuals to mature models and build scenarios (GRMs and DRMs) that effectively capture system of systems effects in complex operational environments. Candidate will provide systems engineering and integration expertise in support of the SDA T3 Tracking mission capabilities. Candidate will assess integrated component program designs (Space Vehicles and Ground Systems) and develop verification and validation approaches against the Enterprise Requirements Document (ERD). Major duties of the position include: Developing Requirements Verification Trace Matrix (RVTM) for the Enterprise Requirements Document (ERD).
    Plan data aggregation from component programs, SDA and T3PI analysis to show compliance with the ERD.
    Reviewing government scenarios from PWSA enterprise and prior tranches to ensure that T3 scenarios are consistent.
    Developing and briefing data packages that provide analysis results to inform the government decision-makers.
    Collaborating with prime contractors, other team contractors, government civilians, FFRDC, SETA and members of the SDA.
    Required Experience, Skills and Attributes: Master's Degree in Math, Science or Engineering with 15+ Years of demonstrated system engineering and integration experience with space, ground, operations and sustainment segments of DoD or NRO programs with a proven delivery record or a bachelor's degree in Math, Science or Engineering with 17+ Years of demonstrated experience.
    Experience working across space and ground segment organizations to coordinate and identify system requirements that ensure end-to-end mission performance requirements are met.
    Strong understanding of modeling, simulation, and mission analysis techniques and tools.
    Experienced at self-starting, seeking solutions, and working well in a team environment
    Demonstrated experience working with SDA/DoD/NRO customers in an acquisition environment, with space and/or ground systems.
    Excellent verbal and written communication skills, as well as organizational and interpersonal skills
    Experience working Space Mission V&V at Mission level
    Desired Requirements Overhead Persistent InfraRed (OPIR), other missile defense or related space-based ISR experience.
    Experience analyzing System Availability (AO or AF)
    Security Clearance Active TS/SCI clearance About OASYS, INC.: Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs. Benefits: OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Heath & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401-K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short-term/Long-term Disability. www.oasys-incorporated.com
  • ABOUT THE COMPANY

    • Government Careers
    • Government Careers

    Government jobs offer stability, competitive benefits, and the chance to make a meaningful impact on your community and country.

    Whether you’re starting your career or seeking new opportunities, these roles provide pathways for growth, security, and service.

    Explore positions across a wide range of fields and take the first step toward a rewarding future in public service.

    Show more

MORE JOBS

  • Traffic Control Flagger

    • Atlanta, Georgia
    • AWP Safety
    • May 30, 2026
    • Full Time
    • Federal Government
    • Transportation or Transit
  • Remote Cloud Security Engineer - IAM, Threat Monitoring

    • Dallas, Texas
    • Milliman
    • May 30, 2026
    • Full Time
    • Federal Government
  • Rideshare Driver | Nights and Weekends (91007)

    • Arcadia, California
    • ALTO
    • May 30, 2026
    • Full Time
    • Federal Government
    • Other
  • Technical/Functional Expert (Storage) with Security Clearance

    • Annapolis Junction, Maryland
    • The Swift Group
    • May 30, 2026
    • Full Time
    • Federal Government
  • Site Reliability Engineer - TS/SCI with Poly

    • Tampa, Florida
    • General Dynamics
    • May 30, 2026
    • Full Time
    • Federal Government
  • Nights and Weekends Driver | Car Provided (90740)

    • Seal Beach, California
    • ALTO
    • May 30, 2026
    • Full Time
    • Federal Government
    • Other
Show More
Apply Now Please mention you found this employment opportunity on the CareersInGovernment.com Job Board.
Please mention you found this employment opportunity on the CareersInGovernment.com Job Board.