Junior Mechanical Test Engineer

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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 sustainable. 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.

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Leidos Defense 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.

Leidos Defense, Systems Integration and Test Team, is seeking a Junior Mechanical Test Engineer . We are a diverse team that works to implement unique solutions for complex problems in the defense sector, including but not limited to kinetic and directed energy defensive and offensive platforms as well as RADAR and other surveillance and sensor technologies. Our team works across multiple business sectors, with industry partners, and directly with the customer. We strive to have a variety of skillsets personally and across the team to meet the needs of our customers.

Primary Responsibilities

Support the planning, preparation, execution, and evaluation of structural tests for mechanical components, assemblies, support structures, data collection, technical reporting, and integrated hardware.

Develop and review structural test plans, test procedures, work instructions, and data collection requirements.

Identify unexpected structural behavior, excessive deformation, abnormal loading, fixture movement, fastener or joint issues, and other test anomalies.

Support system-level integration and test activities to verify that mechanical hardware, subsystems, and associated interfaces function as intended within the overall system.

Translate system requirements, interface control documents, engineering specifications, and verification plans into executable mechanical and system-level test procedures.

Support integration of mechanical assemblies with electrical, electronic, actuation, control, and other subsystem elements as applicable to the test article.

Support system-level environmental, dynamic, vibration, shock, or other qualification and verification activities when required by the program.

Participate in test readiness reviews, integration reviews, test conduct meetings, and post-test assessments.

Prepare test reports documenting objectives, test articles, configurations, instrumentation, procedures, results, anomalies, conclusions, and recommendations.

Maintain accurate records of hardware configuration, test conditions, equipment setup, calibration status, procedural deviations, and test results.

Communicate technical findings and potential risks to engineering leads, program stakeholders, and cross-functional teams.

Ability to evaluate mechanical configurations, fixtures, interfaces, and load application arrangements for suitability in a test environment.

Develop or deploy mechanical instrumentation, measurement equipment, data acquisition systems, and test data interpretation.

Conduct troubleshooting of mechanical hardware and test anomalies using a systematic, data-driven engineering approach.

Basic Qualifications

ABET accredited B.S. or equivalent degree in mechanical engineering or closely related engineering discipline.

Two or more years of relevant engineering experience in mechanical engineering, structural testing, system integration and test, hardware verification, or a related technical field

Working knowledge of mechanical engineering fundamentals, including statics, dynamics, strength of materials, stress and strain, load transfer, stiffness, and deflection.

Strong written and verbal communication skills and the ability to collaborate across mechanical, systems, electrical, manufacturing, and test engineering disciplines.

Ability to work independently on assigned tasks while maintaining adherence to approved procedures, safety practices, and quality requirements.

Preferred Qualifications

Experience conducting or supporting structural load, proof load, stiffness, deflection, or other structural integrity tests.

Experience with strain measurement, load measurement, displacement monitoring, accelerometers, and instrumentation installation.

Experience developing or modifying structural test fixtures, mechanical interfaces, support structures, and load application hardware.

Experience with system-level integration and test of complex mechanical assemblies or electromechanical systems.

Familiarity with system verification and validation, requirements traceability, interface verification, and formal test procedures.

Familiarity with CAD tools, configuration management, discrepancy reporting, root-cause analysis, and corrective-action processes.

Experience in aerospace, defense, or other environments with formal engineering, configuration control, and quality requirements.

If you're looking for comfort, keep scrolling. 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: October 30, 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 $69,550.00 - $125,725.00

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.