Mechanical Systems Engineer

Innovative Defense Technologies (IDT)

Mechanical Systems Engineer designing and integrating advanced computing infrastructure for defense technology. Collaborating in a cross-functional team to develop solutions for Department of Defense customers.

Posted 7/27/2026full-timeArlington • Virginia • 🇺🇸 United StatesMid-LevelSenior💰 $114,000 - $231,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Mechanical Engineering and Systems Engineering, with a strong focus on designing and developing mechanical solutions for computing infrastructure and networked systems. Proficient in CAD software and thermal analysis, with the ability to create technical documentation and collaborate effectively with cross-functional teams.

Highest-signal resume keywords

Mechanical EngineeringCAD Software ProficiencyThermal AnalysisSystems Engineering ActivitiesTechnical Documentation Development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

3D CAD ModelingThermal AnalysisHeat Transfer StudiesCooling System EvaluationsRequirements DevelopmentArchitecture DefinitionIntegration PlanningTechnical Diagram InterpretationData Flow DiagramsSystem Integration Artifacts

Soft Skills

Analytical SkillsProblem-Solving SkillsVerbal CommunicationWritten Communication

Tools & Technologies

SolidWorksCreoCATIAUnified Data Architecture (UDA)

Industry Keywords

Computing InfrastructureNetworked SystemsRuggedized HardwareMission SystemsData Center InfrastructureComputing HardwareNetworking Equipment

Tech Stack

Tools & technologies

Airflow

About the role

Key responsibilities & impact

Design and develop mechanical solutions supporting computing infrastructure, networked systems, ruggedized hardware, and mission systems.
Create and maintain detailed 3D CAD models, assemblies, and engineering drawings for system enclosures, racks, mounts, cooling solutions, and integrated hardware platforms.
Perform thermal analyses, heat transfer studies, airflow evaluations, and cooling assessments for high-performance computing and electronic systems.
Support system architecture development through the creation and interpretation of Unified Data Architecture (UDA) diagrams, interface control documents, data flow diagrams, and system integration artifacts.
Collaborate with systems engineers to define hardware, infrastructure, environmental, and operational requirements.
Participate in requirements decomposition, trade studies, system modeling, and architecture development activities.
Support the integration of computing, networking, storage, and mission systems into customer environments.
Analyze system performance, identify technical risks, and recommend engineering solutions to improve reliability, maintainability, and scalability.
Support engineering reviews, integration events, testing activities, and customer demonstrations.
Develop technical documentation, engineering reports, installation guides, and design packages.
Work closely with cross-functional engineering teams to ensure successful implementation of integrated hardware and software solutions.

Requirements

What you’ll need

Bachelor's degree in Mechanical Engineering, Systems Engineering, related engineering discipline, or equivalent full-time professional experience.
5+ years of engineering experience supporting complex technical systems.
Proficiency with CAD software such as SolidWorks, Creo, CATIA, or equivalent.
Experience performing thermal analyses, heat transfer studies, and cooling system evaluations.
Experience supporting systems engineering activities, including requirements development, architecture definition, and integration planning.
Ability to interpret and develop technical diagrams including UDA diagrams, system architecture diagrams, interface diagrams, and engineering workflows.
Understanding of data center infrastructure, computing hardware, networking equipment, or mission system architectures.
Strong analytical and problem-solving skills.
Excellent verbal and written communication skills.
Ability to travel up to 10% of the time as needed.

Benefits

Comp & perks

Generous benefits package
Competitive PTO
Paid holidays
401(k) with immediate vesting and matching
9/80 optional schedule (2nd and 4th Friday off every month)
Tuition Assistance Reimbursement Program
Professional Development Resources
Pre-Tax Commuter Benefits
Organization-Wide Monthly Tech Connect Events
Annual Employee Recognition Awards
Regular Social Events and Catered Lunches