Battery Algorithm Engineer

Iontra • Centennial, CO

145d • $140,000 - $155,000

About The Position

The Algorithm R&D Group at Iontra is seeking a Battery Algorithm Engineer with strong expertise in electrochemistry, mathematical modeling, and algorithm development for lithium-ion and emerging battery technologies. This person will design, implement, and optimize charging, discharging, and state-estimation algorithms to advance Iontra’s battery performance capabilities. The role requires hands-on data analysis, modeling, and simulation work, as well as collaboration with software, hardware, and test engineering teams to translate research outcomes into product-ready solutions. Your work will directly impact Iontra’s mission to deliver safer, faster-charging, and longer-lasting batteries for applications ranging from consumer electronics to electric vehicles and grid storage.

Requirements

• MS or PhD in Electrical Engineering, Mechanical Engineering, Chemical Engineering, Applied Physics, or related field.
• 2–5 years of experience in battery modeling, control algorithms, or related areas (academic or industry).
• Strong understanding of battery fundamentals (electrochemistry, degradation mechanisms, thermal behavior).
• Expertise in mathematical modeling and control theory applied to dynamic systems.
• Proficiency in MATLAB and Python for modeling, simulation, and algorithm development.
• Solid foundation in statistics and data analysis for experimental validation.
• Experience implementing and debugging algorithms using test equipment and large datasets.
• Familiarity with machine learning approaches applied to battery performance and lifetime prediction.

Nice To Haves

• Experience with embedded systems (C/C++), real-time control, and firmware integration.
• Knowledge of Kalman Filters, Extended Kalman Filters, Particle Filters or advanced estimation methods.
• Exposure to AWS services (SageMaker, Lambda, Athena, Quicksight) for large-scale data handling.
• Strong communication and teamwork skills, including ability to present technical work to cross-functional teams.

Responsibilities

• Further develop lithium-ion battery charging and discharging strategies within the company’s existing algorithm framework and evaluate the impact of various strategies on battery aging.
• Collaborate closely with the embedded systems and software teams to enhance the fuel gauge (SOC/SOH) estimation algorithms within the company’s established framework and integrate these algorithms with charging/discharging strategies into the battery management system (BMS) implemented on chips, to meet customer product requirements.
• Design and execute experiments with Iontra’s battery cyclers (Deimos and Phobos) to validate algorithm performance.
• Optimize the company’s existing cell characterization methods and extract and analyze large sets of test data.
• Work closely with cross-functional teams (Analytics, hardware, embedded software) to bring R&D concepts into production-ready code.
• Contribute technical documentation, patents and design reviews.

Benefits

• Health Care Plan (Medical, Dental & Vision)
• Life Insurance (Basic, Voluntary & AD&D)
• Short Term & Long-Term Disability
• Paid Time Off (Vacation, Sick & Holidays)
• 401(k) Retirement Plan plus company match
• Company Shares Plan

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Master's degree
• Number of Employees: 101-250 employees