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APEX TK LLC

Junior Data Analyst

Colorado Springs, CO · On-site

$100K - $130K/yr

APEX TK is looking for an amazingly talented Junior Data Analyst to join our team! In this role you will get to provide analytical support to the MDA Chief Architect's Warfighter/International ...

APEX TK LLC

Junior Action Officer

Huntsville, AL · On-site

$40K - $60K/yr

Position Overview APEX TK is seeking a Junior Action Officer to provide direct support to senior program leadership in a dynamic, mission-focused environment supporting the National Aeronautics and ...

APEX TK LLC

Spectrum Management Engineer

Huntsville, AL · On-site

$110K - $135K/yr

General Overview APEX TK is looking for an amazingly skilled and motivated Electromagnetic Spectrum Manager to support the Missile Defense Agency (MDA) Spectrum Management Office (SMO) within the ...

APEX TK LLC

Senior Payloads Analyst

Huntsville, AL · On-site

$120K - $150K/yr

General Overview APEX TK is looking for an amazingly talented Range Safety Flight & Termination Engineer to join our team! In this role you will get to support the MDA Targets and Countermeasures ...

APEX TK LLC

Program Controls Analyst

Huntsville, AL · On-site

$70K - $85K/yr

Position Overview APEX TK is seeking a Program Controls Analyst to provide direct support to senior program leadership in a dynamic, mission-focused environment supporting the National Aeronautics ...

APEX TK

Principal GNC & Trajectory Engineer

Huntsville, AL · On-site

$120K - $160K/yr

General Overview APEX TK is looking for an amazingly talented Principal GNC & Trajectory Engineer to join our team! In this role you will provide technical and advisory assistance to Targets Program ...

APEX TK LLC

Program Controls Analyst

Huntsville, AL

$70K - $85K/yr

Position Overview APEX TK is seeking a Program Controls Analyst to provide direct support to senior program leadership in a dynamic, mission-focused environment supporting the National Aeronautics ...

APEX TK LLC

GMD DevSecOps Engineer

Huntsville, AL · On-site

$130K - $150K/yr

General Overview APEX TK is looking for an experienced, team-oriented GMD DevSecOps Engineer to join our team! In this role, you will provide critical support to GM's Digital Acquisition ...

New

APEX TK

C3BM Logistics and Operations Analyst

Huntsville, AL · On-site

$90K - $110K/yr

General Overview APEX TK is looking for an amazingly talented C3BM Logistics and Operations Analyst to join our team! In this role you will be part of the Command, Control, Communications, and Battle ...

New

APEX TK LLC

Spectrum Management Specialist

Huntsville, AL · On-site

$105K - $125K/yr

General Overview APEX TK is looking for a skilled and motivated Electromagnetic Spectrum Manager to support the Missile Defense Agency (MDA) Spectrum Management Office (SMO) within the Office of the ...

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Infographic showing various job openings at Apex Tk in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 92% Physical, and 8% Hybrid job distribution.

GMD Ground Systems Principal Systems Engineer

APEX TK LLC

Huntsville, AL • On-site

$120K - $160K/yr

Full-time

Re-posted 16 days ago

Job description

General Overview

APEX TK is looking for an amazingly talented GMD Ground Systems Principal Systems Engineer to join our team! In this role, you will work as a technical staff member of the GMN SE team supporting definition of performance requirements for the GMD Ground System.

What You'll Be Doing:

  • Participate in the development, management, and planning for current and future capabilities as it relates to requirements for Ground-based Midcourse Defense (GMD) Ground Support Systems (GSS) missile field silos and interfaces.
  • Review proposed requirement changes in higher-level specifications for impacts to GSS baseline.
  • Review peer/counterpart deliverables, drawings, models, and specifications for consistency with GSS baseline.
  • Coordinate with GMD Warfighter, Ground Based Interceptor, Next Generation Interceptor, and GSS Subject Matter Experts to identify and develop new or modified requirements, and assist in incorporating changes into the GMD System Engineering & Integration flow down of requirements.
  • Develop inputs to a cost estimate and analyze schedule impacts of new or modified requirements.
  • Package technical, cost, and schedule impacts to advocate acceptance or rejection of the new or modified requirements.
  • Coordinate with Missile Defense Agency (MDA) Stakeholders to identify and resolve any issues related to changes in Missile Defense System (MDS) system requirements.
  • Translate MDS Core Standards, Mission Assurance Plan, Parts, Materials, Processes Procedures, Cybersecurity, and other agency objectives and processes into GSS requirements.
  • Review GSS contractor's decomposition of requirements into the Prime Item Development Specifications and verification products, which includes coordination of GSS Contractor verification products in combination with government assessment activities.

What Required Skills You Bring:

  • Master's Degree in Engineering or related STEM discipline is required.
  • Minimum of 12 years direct experience in complex system of systems or missile defense system engineering is required.
  • Proficiency in Microsoft Office (Word, Excel, PowerPoint, Outlook) and DOORS is required.
  • Excellent communication, collaboration, and leadership skills are required.
  • Ability to work effectively in a fast-paced, dynamic environment is required.
  • Active security clearance (SECRET or above) is required.

Desired but not Required:

  • MDA experience desired.