MBSE Systems Engineer

MUST HAVE A TS/SCI

Senior Software Systems Engineer (MBSE/Cameo) - TS/SCI Required

Overview

We are seeking a highly skilled Senior Software Systems Engineer with deep expertise in Model-Based Systems Engineering (MBSE), SysML, and Cameo Systems Modeler to support the design and development of complex, software-intensive ground systems. This role is focused on the left side of the Systems Engineering V-Model, emphasizing requirements analysis, system architecture, software requirements decomposition, and MBSE artifact creation.

This is not a traditional hardware, radar, RF, electrical engineering, or signal processing systems engineering position. The ideal candidate will possess a strong software systems engineering background and demonstrate the ability to transform mission and system requirements into development-ready architectures and engineering models that support software development and integration teams.

Key Responsibilities

• Develop and maintain system architectures for complex ground-based and mission-critical systems.

• Perform requirements analysis, decomposition, allocation, and traceability from system-level requirements down to software implementation requirements.

• Create MBSE artifacts from the ground up using SysML and Cameo Systems Modeler.

• Collaborate with software engineering teams to translate operational needs into implementable software designs.

• Generate development-ready engineering products, including:

• Sequence Diagrams

• Activity Diagrams

• Block Definition Diagrams (BDD)

• Internal Block Diagrams (IBD)

• Structural and behavioral architecture models

• Support software integration planning and system verification activities.

• Establish and manage requirements traceability throughout the engineering lifecycle.

• Develop specifications and interface definitions supporting software-intensive solutions.

• Participate in architecture reviews, technical evaluations, and system design activities.

• Ensure consistency between system architecture, requirements, and software implementation efforts.

Required Qualifications

• Active TS/SCI Clearance

• Bachelor's degree in Systems Engineering, Computer Science, Software Engineering, or related technical discipline

• Strong experience in Software Systems Engineering

• Experience supporting Ground Systems, Mission Systems, or Command & Control (C2) Systems

• Expert-level understanding of:

• MBSE methodologies

• SysML

• Cameo Systems Modeler

• Requirements Engineering

• Systems Architecture Development

• Demonstrated experience performing:

• System-to-subsystem decomposition

• System-to-software requirements flow-down

• Requirements traceability

• Specification development and management

• Experience supporting software development teams through architecture and modeling artifacts

• Ability to build system models and architectures from scratch rather than simply maintaining existing models

Desired Experience

• Ground System Architecture
• Mission System Development
• Software Integration Planning
• Digital Engineering Environments
• Agile Software Development Programs
• Large-scale DoD or Intelligence Community programs
• Experience working in MBSE-driven development environments

Ideal Candidate Profile

Successful Candidates Will Demonstrate Experience In The Following Areas

• Active TS/SCI Clearance
• Software Systems Engineering
• Ground Systems Engineering
• Ground System Architecture
• MBSE and Digital Engineering
• SysML Modeling
• Cameo Systems Modeler
• Requirements Decomposition and Traceability
• System-to-Software Requirement Flow-down
• Specification Creation and Management
• Architecture Development
• Software Integration Planning
• Creation of MBSE Artifacts from Scratch
• Sequence Diagrams, Activity Diagrams, BDDs, and IBDs
• Support of Software Development Teams Through Modeling Artifacts

Preferred Backgrounds

Candidates coming from organizations and programs focused on:

• Ground Systems
• Command & Control (C2)
• Mission Systems
• Software-Intensive Defense Platforms
• Digital Engineering and MBSE-Centric Programs
• Software Architecture and Systems Integration

Why This Role?

This opportunity is ideal for engineers who enjoy creating system architectures, defining software solutions, and building MBSE products that directly enable software development. We are looking for architects and creators, not maintainers. The successful candidate will play a critical role in shaping next-generation mission and ground systems through rigorous requirements engineering, architecture development, and model-based systems engineering practices.

Job Type & Location

This is a Contract to Hire position based out of Redondo Beach, CA.

Pay And Benefits

The pay range for this position is $50.00 - $90.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract to Hire position based out of Redondo Beach, CA.

Application Deadline

This position is anticipated to close on Nov 3, 2026.

Workplace Type

This is a fully onsite position in Redondo Beach,CA.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems And TEKsystems Global Services

Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.