Battery Controls Engineer Intern

Archer; San Jose (CA); On-site; USD 34,000 - 48,000; Full time

Job summary

Archer, based in San Jose, California, offers a 10-week full-time summer internship in Battery Controls Engineering. The intern will develop and validate state estimation algorithms for the BMS, collaborating with test engineers and data analysts to ensure accurate thermal performance modeling.

The role emphasizes hands-on data validation and potential automation within a high-stakes aerospace context. The internship runs May 26, 2026 - July 31, 2026 or June 15, 2026 - August 21, 2026, at

Qualifications

• Pursuing a 2nd or 3rd year in college with a STEM focus.
• Understanding Li-ion battery cell behavior and BMS architectures.
• Experience with simulation and programming tools such as Simulink and Python.

Responsibilities

• Develop a pipeline for battery temperature state estimation accuracy analysis and validation.
• Collaborate with test engineers to design tests and collect data for validation.
• Quantify discrepancies between online BMS estimations, models, and experimental data; identify error sources.
• [Stretch goal] Architect an automated simulation framework for large-scale testing and simulation needs.

Skills

Li-ion battery behavior

BMS architectures

Data analysis

Education

Pursuing Bachelor's degree in STEM (2nd/3rd year)

Tools

Simulink

Python

Job description

Archer is an aerospace company based in San Jose, California building an all-electric vertical takeoff and landing aircraft with a mission to advance the benefits of sustainable air mobility. We are designing, manufacturing, and operating an all-electric aircraft that can carry four passengers while producing minimal noise.

Our sights are set high and our problems are hard, and we believe that diversity in the workplace is what makes us smarter, drives better insights, and will ultimately lift us all to success. We are dedicated to cultivating an equitable and inclusive environment that embraces our differences, and supports and celebrates all of our team members.

This internship is a part of a 10-week full-time summer internship program opportunity. This role will be based at Archer's headquarters in San Jose, California and relocation or housing will not be provided.

Archer is seeking a motivated and detail-oriented intern to join Archer. This internship provides a hands-on opportunity to gain practical experience within the Battery Management System (BMS) team. The Battery Controls Engineer Intern will play a vital role in ensuring the safety, reliability, and optimal performance of our BMS state estimation and prediction algorithms. This role is important because the employee will contribute directly to the development of rigorous accuracy analysis and simulation frameworks crucial for validating the system against complex aerospace certification standards. The intern's work will directly support the goal of deploying a safe, high-performance electric aircraft designed to transform urban air mobility.

What You'll Do:

• Develop a comprehensive pipeline for battery temperature state estimation accuracy analysis, including:
• Collaborate with test engineers to develop and execute tests to evaluate battery thermal performance and collect data for validation
• Quantify discrepancies between online BMS estimations, high-fidelity thermal models, and experimental data
• Identify and analyze error sources that may contribute to estimation inaccuracy
• [Stretch goal] Architect and implement an automated simulation framework capable of handling large-scale testing and simulation needs

What You Need:

• Going into the 2nd or 3rd year in college career
• Understanding in Li-ion battery cell behavior and battery management system architectures
• Experience with simulation and programming tools such as Simulink and Python

Summer 2026 Internship Program Details:

• This internship is a part of a 10-week full-time summer internship program opportunity. Program dates are:
  • May 26, 2026 - July 31, 2026
  • June 15, 2026 - August 21, 2026
• *We will not be able to accommodate interns outside of these two program dates.
• This role will be based at Archer - San Jose
• Relocation and housing will not be provided.

Please note that this job description is intended to provide a general overview of the position and does not include an exhaustive list of responsibilities and qualifications.

At Archer we aim to attract, retain, and motivate talent that possess the skills and leadership necessary to grow our business. We drive a pay-for-performance culture and reward performance that supports the Company’s business strategy. For this position we are targeting a base pay between $25.00 - $35.00 per hour. Actual compensation offered will be determined by factors such as job-related knowledge, skills, and experience.

Archer is committed to working with and providing reasonable accommodations to job applicants with physical or mental disabilities, and those with sincerely held religious beliefs. Applicants who may require reasonable accommodation for any part of the application or hiring process should provide their name and contact information to Archer's People Team at [e-mail]. Reasonable accommodations will be determined on a case-by-case basis.

Information collected and processed as part of any job applications you choose to submit is subject to Archer's Candidate Privacy Policy.

Archer is unable to provide work visa sponsorship for this position at the present time.

Archer is proud to be an Equal Opportunity employer committed to diversity and inclusivity in the workplace. All aspects of employment are decided on the basis of merit, qualifications, and business needs. We do not discriminate based upon race, color, religion, sex, sexual orientation, age, national origin, disability status, protected veteran status, gender identity or any other characteristic protected by federal, state or local laws.

Job posting details for Battery Controls Engineer Intern at Archer in San Jose, California, United States. . ClimateTechList gathers 16,000+ job openings from over 767 climate tech companies and updates them daily.