Test Engineer - Energy Storage Systems

About magniX

Based in Washington state, magniX is a leader in electric propulsion for aerospace & defense, working to revolutionize how the world connects by transforming the way aircraft are powered. magniX has been at the leading edge of electric propulsion innovation for quite some time, proving our technology in flight. We are now ready to take our technology and products to market. Be part of a passionate team that is ushering in the 3rd era of aviation.

About the role

Join magniX as an ESS Test Engineer and play a pivotal role in advancing electric aviation through cutting-edge lithium-ion battery technology. You'll lead comprehensive testing programs for Energy Storage Systems, from individual cell characterization to full-scale integrated battery systems, supporting the development of next-generation electric aircraft propulsion. This position reports directly to the Test Engineer Manager.

Primary Responsibilities:

Laboratory Leadership & Operations

• Commission and operate state-of-the-art battery laboratories for development testing, design verification, and failure mode analysis
• Execute comprehensive testing protocols spanning individual components, battery modules, and complete integrated systems on test rigs and aircraft platforms
• Develop innovative testing methodologies for battery cell and Energy Storage System (ESS) management, measurement, and data acquisition systems

Cross-Functional Collaboration

• Partner with program management, simulation, design, and test integration teams to develop testing strategies, define requirements, and coordinate resource allocation
• Collaborate with instrumentation specialists to design, install, and maintain advanced data acquisition systems optimized for ESS testing
• Work alongside test operations teams to establish and operate specialized test facilities and high-power electrical equipment

Technical Documentation & Analysis

• Create and maintain comprehensive technical documentation including test instructions, plans, reports, and datasets within our quality management framework
• Develop advanced data processing solutions using LabVIEW, HBM Perception, and/or Python for measurement, control, and analysis
• Design and commission high-power electrical test systems supporting battery development and verification

Integration & Field Support

• Support ESS integration into flying test platforms and participate in flight test operations
• Provide on-site technical support at customer locations and adapt to rotating shift schedules as program needs require
• Contribute to broader magniX testing initiatives beyond ESS when technical expertise is needed

Qualifications:

• Bachelor's degree or higher in Engineering (Mechanical, Chemical, Electrical, Materials Science, or related discipline). Master’s is preferred.
• 5+ years of hands-on experience with battery systems testing and development, or equivalent specialization through graduate education. Specific experience with lithium-ion batteries is strongly desired.

Technical Expertise:

• Proven battery testing knowledge including cell characterization, module testing, and system-level validation
• Experience with battery cyclers (Maccor, Arbin, NEWARE or similar) and potentiostat systems (BioLogic or similar)
• High-voltage DC systems proficiency with experience in HVDC sources and supporting electrical equipment
• Advanced LabVIEW proficiency with additional skills in MATLAB, Python, or C++ highly valued
• Hands-on technical skills including workshop tools, soldering, and general fabrication capabilities

Physical Requirements & Logistics:

• Physical capability to lift, carry, and push up to 50 lbs
• Flexibility for occasional travel and shift work to support program objectives

Preferred Qualifications:

Advanced Technical Skills

• Electrochemical characterization expertise including dQ/dV analysis and electrochemical impedance spectroscopy (EIS)
• Experience in lithium-ion abuse testing such as UN38.3 compliance tests and DO-311A safety tests
• SolidWorks Electrical proficiency or similar tools for schematic design and wiring diagrams

Industry & Regulatory Knowledge

• FAA certification experience with aircraft systems and components
• Battery safety and failure mode analysis background
• Quality management system experience in regulated industries
• Startup or emerging technology company experience valued

Location

• Applicants must be willing and able to commute to magniX's location in Everett, Washington.
• Applicants must be willing and able to travel to offsite test facilities in different locations within the state and/or country.

Compensation & Benefits

magniX benefits include:

• 100% company-paid premiums for medical, dental, and vision insurance (for employees & dependents).
• 9.5% 401K company contribution.
• Life insurance.
• ADD insurance.
• Long-term and Short-term Disability Insurance.
• Employee Assistance Program (EAP).
• 4 weeks paid vacation + 1-week annual end-of-year shutdown, sick time, and 11 paid holidays.
• Relocation package available
• Catered Friday lunches and quarterly company fun-day events!

This position's approximate base salary range is $120,000-$140,000 annually.

This position must meet export control compliance requirements. To meet export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.15 is required. Under §120.15, a “U.S. Person” includes U.S. citizens, lawful permanent residents, refugees, or asylees. As this position requires access to export-controlled data, an appropriate export authorization by the U.S. Government may be required prior to such access. Employment, and the continuity of employment of non-U.S. persons, is contingent upon the company’s ability to secure and maintain the necessary export control authorization.

magniX is an equal opportunity employer. We value and embrace diversity. We do not discriminate on the basis of race, color, national origin, religion, gender, gender identity or expression, sexual orientation, marital status, age, or disability status.