Senior Mechanical Simulation Engineer – RF/Aerospace

First Rf Corporation; Boulder (CO); On-site; USD 90,000 - 170,000; Full time

Benefits offered by this job

Four weeks PTO

Hybrid work

Tuition reimbursement

401(k) match

Health, dental, and vision plans

Job summary

FIRST RF is seeking a highly motivated Mechanical Engineer with expertise in FEA to support RF and antenna system development for defense and aerospace. You will perform structural, thermal, and dynamic simulations on complex electronic assemblies.

You will collaborate with multidisciplinary teams, ensure MIL-STD-810 compliance, present results at design reviews, and help optimize weight, manufacturability, and reliability for mission-critical systems.

Qualifications

• U.S. citizenship and ability to obtain a U.S. Security Clearance.
• Bachelor’s degree in Mechanical Engineering or related field.
• 5+ years of relevant mechanical engineering experience in aerospace/defense/electronics packaging.
• Strong experience with structural, thermal, and vibration simulation on complex assemblies.
• Proficiency with Altair/Siemens software, SolidWorks, MSC Nastran, NX Nastran, and ABAQUS.
• Experience with electronic packaging for high-reliability environments.
• Knowledge of MIL-STD-810/DO-160 environmental requirements.
• Excellent written and verbal communication skills.
• Ability to work in a fast-paced multidisciplinary development environment.

Responsibilities

• Lead structural, thermal, and dynamic simulations for RF systems and electronic assemblies using Altair/Siemens tools and SolidWorks Simulation.
• Perform finite element analysis to evaluate thermal performance, thermo-structural integrity, shock and vibration survivability, fatigue and durability, and environmental requirements.
• Develop and validate simulation models through correlation with test data.
• Collaborate with RF, mechanical, electrical, and systems engineers to optimize designs for weight, manufacturability, reliability, environmental performance, and RF compatibility.
• Support the design and packaging of high-reliability RF hardware for aerospace and defense applications.
• Participate in technical and customer design reviews, presenting analysis results and engineering recommendations.
• Create and maintain engineering documentation, analysis reports, and test correlation data.
• Support root-cause investigations and troubleshooting during integration and test.
• Ensure compliance with ITAR and applicable industry and military standards.

Skills

FEA analysis

Thermal management

Shock and vibration analysis

GD&T

Communication skills

MIL-STD-810 experience

Education

Bachelor’s degree in Mechanical Engineering

Master’s degree (preferred)

Tools

Altair Suite (Hypermesh/Optistruct/RADIOSS/Hyperlife)

SolidWorks Simulation

MSC Nastran

NX Nastran

ABAQUS

Job description

FIRST RF is seeking a highly motivated Mechanical Engineer with expertise in FEA to support RF and antenna system development for defense and aerospace. You will perform structural, thermal, and dynamic simulations on complex electronic assemblies.

You will collaborate with multidisciplinary teams, ensure MIL-STD-810 compliance, present results at design reviews, and help optimize weight, manufacturability, and reliability for mission-critical systems.