Senior Mechanical Engineer (Onsite)

About this role

Date Posted: 2026-08-31

 Country: United States of America

 Location: US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100

 Position Role Type: Onsite

 U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

 Security Clearance Type: DoD Clearance: Secret

 Security Clearance Status: Active and existing security clearance required after day 1

Are you up for a challenge? Mission Systems Engineering is a leader in the mechanical and electrical hardware design, development, and production of DoD and Government Communications Systems. The department supports customers for Land, Sea, and Airborne Programs for our US military and various international customers, keeping the world safe from foreign threats. 

The department is seeking motivated and driven mechanical engineers with technical expertise and experience in hardware design, analysis, integration and production support. As a senior mechanical engineer, you will be a member of a multi-disciplinary Integrated Program Team (IPT) consisting of System, Hardware and Software Engineers. Your work can support development of next generation systems, design enhancements, upgrades for existing products, and transition to production efforts. Product areas can include circuit card assemblies, electronics assemblies, and reflector-type antennas for communications systems.

What You Will Do • You will perform mechanical design, development, analysis and documentation of components and assemblies in accordance with system requirements

• You will provide support to production and suppliers during product integration Interface with the broader organization to develop design solutions and resolve technical challenges. This can include engineering managers, engineers, designers, and structural/thermal analysts, other disciplines, program management, suppliers, and external customers

• You will work with limited supervision and meet commitments for assigned schedule, financial, and technical goals

• You will support and participate in reviews and conduct trade studies to make sound technical decisions

• You will apply knowledge and experience in technical problem solving and hardware development in a fast paced, team environment

• You will mentor and guide less experienced engineers

Qualifications You Must Have • Experience designing and developing hardware, ranging from concept definition through detailed design and transition to production or product support.

• Demonstrated experience in mechanical design, product development, material selection, and manufacturing processes

• Experience with CAD design tools and associated product data management tools Experience solving technically challenging problems within aggressive timelines

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience

• The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer • Experience with design, fabrication, and integration of electronic assemblies, circuit card assemblies, structural components, equipment packaging and layout, and military defense systems

• CREO CAD system experience and PDM or similar product data management tools Previous experience with structural and/or thermal analysis using ANSYS, Flotherm and/or other analytical tools

• Knowledge of geometric dimensioning and tolerancing and ASME Y14.5 Demonstrated hands-on mechanical aptitude

• Prior defense industry experience, designing and solving problems for high reliability systems operating within harsh military environments

• Working knowledge of military and commercial design, materials, and process specifications

• Experience diagnosing and resolving hardware issues during prototyping, production and test

• Experience with EVMS or other professional exposure to similar budget tracking systems

• ACTIVE Secret Security Clearance or HIGHER

• Advanced degree in mechanical engineering

What We Offer • Medical, dental, and vision insurance  

• Three weeks of vacation for newly hired employees  

• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option  

• Tuition reimbursement program 

• Student Loan Repayment Program  

• Life insurance and disability coverage  

• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection 

• Birth, adoption, parental leave benefits 

• Carrot Health to hormonal health, fertility, and family building

• Adoption Assistance           

• Autism Benefit  

• Employee Assistance Plan, including up to 10 free counseling sessions  

• Healthy You Incentives, wellness rewards program 

• Doctor on Demand, virtual doctor visits  

• Bright Horizons, child and elder care services 

• May be eligible for Relocation

• And more!  

Learn More & Apply Now! Mission Systems:  Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipatin

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