Senior Principal Stress Analyst

Leidos; Huntsville (AL); On-site; USD 154,000 - 278,000; Full time

Job summary

Leidos Defense Systems seeks a Senior Stress Analyst in Huntsville, AL to develop and validate structural models using FEA tools and simulations. You will collaborate with design and manufacturing to ensure performance, manufacturability, and schedule adherence.

Requirements include ABET-accredited degree and 13+ to 17+ years of experience depending on degree, strong communication, and U.S. citizenship with final secret clearance eligibility. Relocation to Huntsville is expected.

Qualifications

• ABET-accredited mechanical or aerospace engineering degree required.
• Experience with commercial finite element analysis tools.
• Strong writing and cross-functional collaboration skills.

Responsibilities

• Apply analytical methods, finite element models, simulations to develop and analyze structures.
• Collaborate with design and manufacturing to deliver high-performance structures on schedule.

Skills

Analytical methods

Cross-functional collaboration

Technical writing

Presentation skills

Team collaboration

Problem solving

Education

ABET-accredited engineering degree

Master's degree in Mechanical or Aerospace Engineering

Tools

FEMAP/NX NASTRAN

PATRAN/MSC NASTRAN

ANSYS

Abaqus

Job description

Looking for an opportunity to make an impact?

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

Your greatest work is ahead!

Leidos' Defense Systems is seeking a Senior Stress Analyst to join our team to create unique solutions for complex problems.

If this sounds like the kind of environment where you can thrive, keep reading!

Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world's toughest security challenges for customers with "can't fail" missions.

Primary Responsibilities

• Apply analytical methods, finite element models, simulations, and other engineering tools to develop models, perform structural and dynamic analyses, conduct calculations, reduce test data, and correlate results.
• Partner closely with design and manufacturing teams to deliver high-performance structures that meet demanding requirements for performance, manufacturability, and schedule.

Basic Qualifications

• Bachelor's Degree in Mechanical Engineering, Aerospace Engineering or equivalent degree from an ABET-accredited university.
• Possess 17+ years of relevant industry experience with a bachelor's degree, 15+ years with a master's degree, or 13+ years with a doctorate degree.
• Demonstrated experience with any of the commercial finite element analysis tools (e.g. FEMAP/NX NASTRAN, PATRAN/MSC NASTRAN, ANSYS, Abaqus, etc.).
• Strong technical writing, presentation, and cross-functional collaboration skills.
• Proven ability to thrive in a collaborative, multi-disciplinary engineering environment.
• Capable of working as part of a larger analysis team or working as the sole analyst on a project.
• U.S. citizenship and a current Final Secret Clearance-or eligibility to obtain and maintain one.
• Residence in, or willingness to relocate to, the Huntsville, Alabama area.

Preferred Qualifications

• Master's degree in Mechanical Engineering, Aerospace Engineering or equivalent degree from an ABET-accredited university with a 3.5 or higher GPA.
• Advanced expertise in Linear and nonlinear contact FEA
• Application of nonlinear material properties to both FEA and hand calculations
• Integrated multi-physics analysis
• Bolted joint and weld analysis
• Dynamics analysis (modal, response spectrum, shock, vibration)
• Bolted joint and weld analysis
• Fatigue analysis
• Composite materials analysis
• Thermal analysis
• undefined
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At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting: September 22, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range: Pay Range $154,050.00 - $278,475.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.