**SECRET CLEARANCE** Specialist, Systems Engineering L3

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SECRET CLEARANCE Specialist, Systems Engineering L3

Apollo Professional Solutions

Los Angeles, CA 91304

$59.00/hour

Posted 05/07/2026

Job ID: 76741

Job Description

Systems Engineering Specialist - Onsite

Location: Client Site (Onsite, 9/80 Schedule)

Employment Type: Contract (with potential for conversion to direct hire)

Security Clearance: Active Secret clearance required at start

Citizenship: U.S. Citizens only (no dual citizenship)

About the Role

We are seeking a Systems Engineering Specialist to support advanced aerospace and defense programs in a highly technical, onsite environment. This contract role is ideal for professionals with a strong foundation in systems engineering and Model-Based Systems Engineering (MBSE) who excel at requirements development, risk coordination, and cross-functional collaboration. You will contribute directly to the development of rocket propulsion systems, working under general supervision while managing complex engineering tasks with precision and accountability.

Key Responsibilities Requirements Development (?60%)

• Develop system, subsystem, and component requirements for rocket propulsion product development
• Derive, allocate, and document requirements in requirements databases and formal specifications
• Coordinate requirements and specification change management with Integrated Product Team (IPT) members
• Define and align requirements verification plans with IPT stakeholders
• Plan and manage compliance assessment and certification activities
• Execute all requirements activities using model-based systems engineering (MBSE) tools

Functional Analysis (?15%)

• Perform functional analysis and support system trade studies
• Coordinate benefit/cost trade evaluations to select optimized concept baselines
• Support the definition of system architecture and performance objectives

Risk and Opportunity Coordination (?15%)

• Coordinate project risk and opportunity identification, assessment, and management
• Prepare, track, and report mitigation plans and outcomes
• May provide technical direction to a small team of engineers and/or technicians
• Estimate staffing needs, schedule tasks, and assign work to meet program milestones

Communication and Stakeholder Engagement (?10%)

• Communicate technical results through clear written documentation and oral presentations
• Represent the organization in meetings and teleconferences to resolve technical issues
• Collaborate with cross-functional teams to plan, coordinate, and execute engineering work

Required Qualifications

• Bachelor's degree in Systems Engineering or a related engineering discipline (Mechanical or Aerospace)
• 4+ years of relevant industry experience in systems engineering
• Experience across systems engineering disciplines, including:
• Requirements management
• Risk management
• Product development lifecycle

Hands-on experience with requirements tools such as IBM DOORS Working knowledge of Model-Based Systems Engineering (MBSE) methodologies Ability to work onsite in a secure, classified environment Preferred Qualifications

• Advanced degree in a relevant engineering or science discipline
• Knowledge of liquid rocket propulsion systems

Why This Opportunity?

• Work onsite on complex, mission?critical aerospace and defense programs
• Apply MBSE and systems engineering best practices to real-world propulsion systems
• Collaborate with experienced engineering teams in a structured, high?impact environment
• Opportunity for contract-to-direct hire conversion based on performance and business needs
• Enjoy a 9/80 work schedule, supporting work-life balance while maintaining onsite collaboration

This role is well-suited for a detail-oriented systems engineer who thrives in technically rigorous programs and is eager to contribute to the development and certification of advanced propulsion systems.

About Los Angeles, CA

Ready to take your career to new heights in sunny Los Angeles, California? Explore our enticing job opportunities in the City of Angels and beyond. From the glittering Hollywood sign and iconic Griffith Observatory to the vibrant arts scene, delectable cuisine, and endless outdoor adventures, LA offers a perfect blend of work and play. Immerse yourself in world-class museums like The Getty and LACMA, catch a show at the historic Pantages Theatre, or cheer on the Lakers at the Staples Center. Whether youre drawn to the beach vibes of Santa Monica or the hustle and bustle of Downtown LA, this dynamic region promises limitless growth opportunities and an unbeatable quality of life. Browse our job listings now and discover your next career adventure in Los Angeles!

Salary Notes: The compensation listed reflects the good-faith rate currently anticipated for this position and may be adjusted, where permitted by law, based on business needs, applicable qualifications and experience.

EEO Statement: Apollo Professional Solutions, Inc. is an equal opportunity employer. We provide equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, marital status, age, national origin, ancestry, disability status, medical condition, pregnancy, genetic information, protected veteran status, gender, sexual orientation, gender identity or expression, or any other status or characteristic protected under federal, state, or local law.

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