Systems Engineer

Overview

i3 is seeking a candidates to support systems engineering and modeling activities for Department of Defense customers. This position is located in Huntsville, AL.

The successful candidate will be knowledgeable of Systems Engineering and Systems Integration concepts and familiar with Army Acquisition Processes and Test and Evaluation Methods. Experience supporting PAE Fires is strongly preferred. The successful candidate must work well in a team and collaborative environment and must demonstrate strong written, communication, and presentation skills, attention to detail, and an eye for innovative ideas.

The successful candidate will have a working knowledge of MBSE tools and techniques to support enterprise architecture development, requirements analysis and decomposition, system design and design verification, interface development, and verification/validation activities.

Tasks will include working with a team of engineers to develop and maintain models in a collaborative environment to support Integration, Planning, and Test activities at the Enterprise level. The candidate will also support mission engineering to develop integration plans, test plans and procedures, data analysis plans, and execution of models in simulation to conduct scenario-based analysis for the customer. The candidate is also expected to perform modeling tasks as required by the customer, including roadmap modeling, mission modeling, data modeling, verification and validation, and process definition. Knowledge of Systems Modeling Language (SysML 1.x) and the Unified Architecture Framework (UAF 1.1 & 1.2) is strongly preferred for the successful candidate.

Responsibilities

• Provides Enterprise-level Systems Engineering support utilizing MBSE models and other digital engineering tools.

• Participates in or leads the development of Enterprise roadmaps; System of systems integration plans; procedures and scenarios used in the conduct of software and hardware system integration testing

• Performs analysis of integration results to assess system impacts.

• Supports or leads interoperability studies in the context of inter- and intra-service data architectures.

• Utilizes strong written, communication, and presentation skills, and works effectively in a team environment.

• Reviews system engineering documentation and model artifacts to ensure accuracy.

• Supports trade studies to support the selection preferred design solutions and course of action alternatives in project development/product delivery. Additionally, leads trade studies to support the selection of optimal capability configurations for mission scenarios.

• Will include technical briefings and advisement to leadership on the status and recommended courses of action regarding model development, systems engineering processes, System of Systems integration, V&V, schedule shifts, and impacts on the mission.

• Develops and maintains models using modeling languages such as Unified Modeling Language (UML), Systems Modeling Language (SysML), and Unified Architecture Framework (UAFML).

• Contributes to the development of system and system of systems models and creates representations using data architectures and data models to facilitate interoperability.

• Utilizes MBSE tools (e.g., Dassault Systèmes MagicDraw and Teamwork Cloud) to support the traceability and analysis of requirements, system design and integration, system use cases, and enterprise capabilities, phases, and mission threads.

• Analyzes and evaluates systems using MBSE artifacts and custom plugins.

Qualifications

Required:

• Bachelor’s degree and 3+ years of systems engineering and integration experience (MS may substitute for some years of experience).

• 3+ years experience in supporting DoD programs

• Demonstrated excellence in Offensive Fires programs and/or Air and Missile Defense programs, including command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR).

• Demonstrated experience in multiple SE processes including but not limited to, requirement development/management, test planning, verification planning/tracking/compliance documentation, risk management, milestone review planning/execution, enterprise architecture development.

• Demonstrated Stakeholder management and communication.

• Exceptional customer relationship skills to include ability to uncover true requirements, recommend alternative solutions and approaches, and lead engineering efforts to meet forward-leaning timelines.

• Demonstrated individual contribution to the execution of multiple systems engineering processes.

• Knowledge of system architecture development and the systems engineering process.

• Demonstrated experience supporting development of SE&I task planning to support integration of complex, multi-discipline engineering design/build programs.

• 3+ years of experience with various MBSE tools – Dassault Systèmes Magic Draw, IBM Rhapsody.

• Active US Secret Clearance.

Desired:

• Experience working in an Agile environment.

• Demonstrated experience in modeling with SysML and the Unified Architecture Framework.

• Knowledge of program lifecycles from the experimental phase through deployment

• Knowledge of the DoD acquisition process/DoD 5000.02

• Program road mapping and strategic planning.

• Experience in executing SE processes in joint engineering efforts across organizations.

• Knowledge of PAE Fires and its Program/Product Offices

Knowledge/Skills

• Knowledge of office administration and procedures.

• Exceptional judgment capabilities and relationship management skills.

• Excellent communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly and tactfully.

• Interact with a diverse array of customers and staff in a professional and courteous manner.

• Work independently with accountability for accurate and complete results.

• Be extremely organized and exceptionally detail oriented.

• Work well both independently and in a team environment.

• Be energized by a fast-paced work environment.

• Must be able to communicate with others effectively.

• Analyze information and respond appropriately.

• Manage time wisely and prioritize tasks.

• Provide superior customer service.

• Multi-task in a pleasant manner.

• Work well under pressure.

Physical Demands

• The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

• While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.

• The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.

• Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.

• Regular i3 hours are 8:00 a.m. - 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.

About i3

i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.

Perks of being a team member owner include:

• Long-term financial security

• Higher job satisfaction

• Greater job security

• Personal and professional growth

• Great company culture

Other outstanding benefits:

• Excellent insurance coverage

• 401(k) match

• Generous PTO

• Health and wellness incentives

• Tuition and certification reimbursement

• Countless opportunities to give back to the community through i3 Cares

We work hard. We compete hard. We play hard. Apply now to join us!

Job LocationsUS-AL-Huntsville

ID 2026-5170

Type Full-Time

Clearance Secret Clearance Required