Systems Engineer, Energy Storage Systems

About magniX: Based in the beautiful Pacific Northwest, magniX builds solutions for the electric age, applying its aerospace-grade batteries, power electronics, power distribution, electric engines, and software to mission-critical applications across data centers, energy storage, defense, mobility, space, and aerospace. Built on an 800-volt architecture, magniX technology delivers industry-leading energy density, cycle life, and safety, and magniX electric engines have powered more than 200 flights across six different airframes, where the company remains the industry leader. As magniX extends its aerospace-grade standards into new markets, we are building a commercial organization to match, and are now ready to take our technology and products to market. Be part of a passionate team that is ushering in the electric age.

About the role: We are looking for a Systems Engineer to participate in the system design aspects of our Energy Storage System (ESS), with an emphasis on BMS and charging controls design and battery simulation, spanning the requirements, integration, and V&V of our ESS.

Primary Responsibilities

• Be involved in systems engineering activities to develop, integrate, and qualify our Energy Storage System (ESS)
• Perform/lead requirements-based verification activities, supporting team members and contractors
• Prepare the Test Request documents, Verification Test Reports (VTR), and Traceability Matrix
• Work with internal and external teams, customers, and suppliers throughout our product development cycle to manage requirements plans, system validation, and verification
• Support the validation, verification, and testing plan execution for DO-178, DO-254, DO-160, and FAA regulatory compliance
• Manage the requirements change process, identifying customers' priorities and recording conflicts between individual requirements
• Design, develop, and validate BMS control features including contactor and pre-charge sequencing, cell balancing, and charge/discharge management, together with their fault detection behavior
• Develop and simulate charging strategies across the ESS operating envelope, including the control interactions between the ESS and ground charging equipment
• Build, correlate, and maintain system simulation models for operational modes and states behavior
• Analyze ESS data to characterize system and cell behavior to root cause anomalies
• Contribute to thermal and coolant-loop analysis for the ESS and support the development of system requirements for charging thermal management

Required Qualifications

• Bachelor's degree in Systems Engineering, Aerospace Engineering, Electrical Engineering, Mechanical Engineering, or related field
• 3+ years of systems, controls, or BMS engineering experience in aerospace or other safety-critical industries (e.g., automotive EV, eVTOL, battery energy storage systems)
• Knowledge of systems engineering principles, requirements management, verification, and validation
• Experience with Python for automation, analysis, or modeling
• Hands-on experience developing BMS or charging control features and algorithms
• Working knowledge of Li-ion battery fundamentals, chemistries, and degradation mechanisms

Preferred Qualifications

• Experience with Simulink/Stateflow-based controls development
• Experience using requirements management tools such as Jama or DOORS
• Experience with CAN communication and diagnostic tools (CANalyzer, CANoe, Vehicle Spy, PCAN)

Location: Applicants must be willing and able to commute to magniX's location in Everett, Washington .

Compensation & Benefits

• 100% company-paid premiums for medical, dental, and vision insurance (for employees & dependents).
• 4 weeks paid vacation + 1-week annual end-of-year shutdown, sick time, and 11 paid holidays.
• 401K retirement plan with industry leading 9.5% company contribution.
• Company paid Life insurance, AD&D, Short-Term and Long-Term disability insurance
• Catered lunches and quarterly company fun-day events!

Salary Range: $130,000-175,000

E-Verify: magniX utilizes E-Verify for employment eligibility verification

Pre-employment Screenings: Employment with magniX is contingent upon satisfactory completion of pre-employment requirements including a background screen.

Export Control Compliance: This position may require access to export-controlled data. To meet export control compliance requirements, candidates must be a “U.S. Person” (U.S. citizens, lawful permanent residents, refugees, or asylees), or 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.

EHS/Environmental Requirements: This job operates in a manufacturing and testing environment. While performing the duties of this job, the employee routinely is required to use hands to keyboard, communicate, listen to, and interpret instructions and remain stationary for extended periods of time. This would require the ability to move around the facility and occasionally move/lift items weighing up to 25 lbs. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job. Applicants are invited to apply for a reasonable accommodation to perform the essential duties of the job.

Required PPE (Personal Protective Equipment): Required PPE provided by magniX based on the employee’s position and exposure. Below are typical PPE used on the manufacturing and testing floor:

• Ear Plugs - Earmuffs
• Safety shoes
• Safety Glasses - Safety Goggles

Diversity and Inclusion: 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.