Sr. Electro-Mechanical Engineer

Stellent IT LLC; Sunnyvale (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Stellent IT LLC seeks a Sr. Electro-Mechanical Engineer in Sunnyvale, onsite, with 9–18 years’ experience. The role focuses on mechanical verification, fixture design, and reliability testing across products.

You will lead test plans, vendor coordination, and data-driven analysis while mentoring junior engineers. You'll work with researchers, architects and design teams to implement scalable test infrastructure, apply GD&T, and drive robust verification methods, ensuring product quality and

Qualifications

• Bachelor’s degree or equivalent in a related technical field.
• 8+ years in electro-mechanical engineering with validation/reliability experience.
• Experience authoring and executing mechanical validation plans with acceptance criteria.
• Hands-on in test fixtures design, sensor selection, and measurement-uncertainty.
• Proficient in Python for test automation and data analysis.

Responsibilities

• Define mechanical verification methodologies with researchers, architects and design teams.
• Perform verification for thermal, vibration, mechanical stress testing, etc.
• Define and track detailed test plans for modules and top-level systems.
• Design and drive scalable test infrastructure and fixtures.
• Manage coverage metrics, bugs, and resolutions; report results.
• Lead FMEA, reliability analysis, and GD&T activities with cross-functional teams.
• Support system bring-up, debug, and data-driven decision making.
• Oversee external vendors for fixture development and data collection.

Skills

Python for test automation

Statistical analysis

Mechanical design and analysis

Vendor management

Education

Bachelor's degree in Mechanical Engineering, Electro-Mechanical Engineering, Mechatronics

Tools

Python (NumPy/Pandas)

DAQ hardware

CMM/OEM measurement equipment

GD&T measurement tools

Job description

Title: Sr. Electro-Mechanical Engineer

Location: Sunnyvale, CA (Onsite

Exp: 9-18 years

Responsibilities

• Define mechanical verification and validation methodologies for each of the different systems by working with researchers, architects and product design teams
• Perform core function for verification of thermal, vibration, mechanical stress testing, etc
• Define and track detailed test plans for the different modules and top-level systems
• Define, architect, design and drive implementation of scalable test infrastructure and custom mechanical test fixtures
• Keep track of coverage metrics and bugs encountered and resolutions
• Own execution, interpretation and reporting of mechanical system-level verification and validation work
• Drive FMEA, failure analysis, tolerance analysis, gauge R&R, and the GD&T activities supporting product scalability in close collaboration with process, manufacturing and REL teams
• Support system bring-up and debug activities
• Perform analysis on large datasets to summarize results and clearly communicate test plans results
• Manage external vendors for test fixture development, execution and data collection and review vendor test reports and ensure compliance with requirements.
• Design, build, and qualify electro-mechanical test fixtures and rigs - motorized/actuated stages, load and displacement fixtures, automated cycling and don/doff testers, vibration and drop setups
• Implement machine I/O and control: sensor and actuator wiring, motion control (steppers/servos), microcontrollers/PLCs, and digital/analog I/O interfaces between test hardware and host software
• Apply statistical rigor: DOE, sample size and confidence justification, Weibull/reliability analysis, GR&R, SPC
• Evaluate, specify, and justify capital test equipment; manage vendor technical evaluations, quotes, acceptance testing, and commissioning
• Provide technical guidance and mentorship to other engineers and technicians, and raise the team's overall test-methodology bar

Required Qualifications

• Bachelor's degree in Mechanical Engineering, Electro-Mechanical Engineering, Mechatronics, or a related technical field, and/or equivalent practical experience
• 8+ years of experience in electro-mechanical engineering with a demonstrated track record in mechanical validation, verification, or reliability test
• Demonstrated experience authoring and executing mechanical validation and reliability test plans (e.g., drop, vibration, fatigue/life cycling, environmental, HALT/HASS/ALT) with defined acceptance criteria
• Hands on experience designing and building test fixtures and instrumented rigs, including sensor selection, mounting, calibration, and measurement-uncertainty assessment
• Proficiency with Python for test automation, instrument control, and data analysis (e.g., NumPy/pandas or equivalent)
• Experience with I/O and data acquisition: analog/digital I/O, DAQ hardware, serial interfaces (SPI/I2C/UART/USB/Ethernet), sensor signal conditioning, and motion control
• Experience interpreting mechanical drawings and applying GD&T, and using metrology and inspection equipment (CMM, optical/vision measurement, 3D scanning)
• Experience applying statistical methods to test design and interpretation (DOE, sample size justification, Weibull, SPC)

Preferred Qualifications

• MS in Mechanical Engineering, Mechatronics, or a related field
• Experience validating consumer electronics products, particularly compact or highly integrated form factors
• Experience with dynamic and environmental test methods and the standards that govern them (e.g., vibration, shock, transport, and environmental exposure standards)
• Experience with optical, non-contact, or full-field measurement techniques for displacement, deformation, or motion
• Experience with instrumentation for force, pressure, or load distribution measurement
• Experience with FEA or simulation-to-test correlation
• Experience building automated test cells and the supporting software infrastructure (test frameworks, databases, dashboards)
• Experience owning capital equipment specification, vendor selection, and lab build-out
• Experience mentoring engineers and technicians and standardizing test methods across teams
• Develop Python-based automation for test control, data acquisition, and analysis; build reusable analysis pipelines and dashboards so results are reproducible rather than one-off

Work Requirements

This role is considered an on-site position located in Sunnyvale, CA

You must be able to commute to and from the location with your own transportation arrangements to meet the required working hours.