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Freelance Lithium Ion Battery Engineer Jobs (NOW HIRING)

Warehouse Fixers

Lithium Battery Charger Tech

Austin, TX · On-site

$60 - $80/hr

Crown Equipment is hiring a Lithium Battery Charger Tech to install and maintain lithium-ion battery charging stations at forklift customer locations in the Austin metro area. You will mount charger ...

Sila

Staff Battery Engineer

Alameda, CA · On-site

$151K - $191K/yr

To create this future, our team is building a better lithium-ion battery from the inside out today. We engineer and manufacture ground-breaking battery materials that significantly increase the ...

Sila

Staff Battery Engineer

Alameda, CA · On-site

$151K - $191K/yr

To create this future, our team is building a better lithium-ion battery from the inside out today. We engineer and manufacture ground-breaking battery materials that significantly increase the ...

Cowboy Space Corp.

Sr. Battery Engineer

San Carlos, CA · On-site

$150 - $200/hr

The Role We're looking for a Battery Engineer to own the design, development, integration, and ... Knowledge of lithium-ion battery chemistry (NMC, NCA, LFP), degradation mechanisms, and safety ...

Blue Origin LLC

Battery Cell Engineer

Seattle, WA · On-site

$150 - $200/hr

As the Battery Cell Engineer, you are responsible for the cell-level aspects of the battery design ... Review academic/industry literature of lithium-ion cells and beyond to advance Blue Origin ...

Sila

Staff Battery Engineer

Alameda, CA · On-site

$151K - $191K/yr

Who You Are As a Battery Engineer on the Battery Engineering team, you'll be an integral part of ... the lithium-ion battery chemistries through your experience in the industry, and are looking to ...

Stanley Black & Decker

Battery Test Engineer

Towson, MD · On-site

$63K - $102K/yr

Work with team of engineers to design and test power tool battery solutions * Fabricate and acquire ... Handle, modify, and test lithium-ion battery packs in a controlled laboratory environment * Support ...

Sbdinc

Battery Test Engineer

Towson, MD · On-site

$63K - $102K/yr

Work with team of engineers to design and test power tool battery solutions * Fabricate and acquire ... Handle, modify, and test lithium-ion battery packs in a controlled laboratory environment * Support ...

Impulsespace

$125 - $150/hr

Avionics Mechanical Engineer - Batteries (All levels) Department: Avionics Employment Type ... Develop new lithium-ion battery packs to meet mission requirements * Own full product lifecycle

Blue Origin

Battery Cell Engineer

Grandview, MO · On-site

As the Battery Cell Engineer, you are responsible for the cell-level aspects of the battery design ... Review academic/industry literature of lithium-ion cells and beyond to advance Blue Origin ...

Rivian

Sr. Battery Cell Test Engineer

Tustin, CA · On-site

$100 - $125/hr

Execute lithium-ion battery cell tests including electrical, mechanical, and electrochemical ... Collaborate with data engineers to process data, maintain cell testing databases and develop ...

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Freelance Lithium Ion Battery Engineer information

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$71K

$115.4K

$167.5K

How much do freelance lithium ion battery engineer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for freelance lithium ion battery engineer in the United States is $115,418.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,000.00 and $130,000.00 per year, depending on experience, location, and employer.

What does a freelance lithium ion battery engineer do?

A Freelance Lithium Ion Battery Engineer designs, develops, and tests lithium ion batteries for a variety of applications, such as electric vehicles, consumer electronics, and renewable energy storage. They may work independently or contract with companies to provide expertise in battery chemistry, cell design, and battery management systems. Their responsibilities often include creating prototypes, analyzing battery performance, and ensuring products meet safety and efficiency standards.

What are the key skills and qualifications needed to thrive as a freelance lithium ion battery engineer?

To thrive as a Freelance Lithium Ion Battery Engineer, you need a solid background in electrochemistry, battery design, and engineering principles, often supported by a degree in electrical, chemical, or materials engineering. Familiarity with simulation software (such as COMSOL or ANSYS), battery management systems (BMS), and safety standards, along with relevant certifications, is typically expected. Strong problem-solving skills, effective communication, and the ability to manage projects independently make candidates stand out. These capabilities are vital for delivering innovative, safe, and efficient battery solutions to a diverse range of clients in a competitive freelance environment.

What are some common challenges faced by freelance lithium ion battery engineers, and how can they be managed?

Freelance lithium ion battery engineers often encounter challenges such as staying current with rapidly evolving battery technologies, managing multiple client projects with differing requirements, and ensuring access to high-quality lab equipment or testing facilities. To manage these challenges, it's important to allocate time for ongoing professional development, establish clear communication and project timelines with clients, and consider partnerships or memberships with shared laboratory spaces. Building a network of industry contacts can also help in sourcing materials and staying informed about best practices.

What is the difference between Freelance Lithium Ion Battery Engineer vs Freelance Electrical Engineer?

AspectFreelance Lithium Ion Battery EngineerFreelance Electrical Engineer
CredentialsRelevant engineering degrees, certifications in battery technologyElectrical engineering degrees, various certifications depending on specialization
Work EnvironmentResearch labs, manufacturing facilities, client sites for battery design and testingConstruction sites, industrial plants, consulting projects across various industries
Industry UsageBattery manufacturing, renewable energy, electric vehiclesPower systems, electronics, automation, general electrical projects

Freelance Lithium Ion Battery Engineers focus on designing, testing, and optimizing lithium-ion battery systems, often within specialized industries like electric vehicles and renewable energy. Freelance Electrical Engineers have a broader scope, working on various electrical systems across multiple sectors. While both roles require electrical knowledge, the battery engineer's expertise is more specialized in energy storage technology.

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Freelance Lithium Ion Battery Engineer jobs near you
Infographic showing various Freelance Lithium Ion Battery Engineer job openings in the United States as of August 2026, with employment types broken down into 92% Full Time, and 8% Contract. Highlights an 84% In-person, 8% Hybrid, and 8% Remote job distribution, with an average salary of $115,418 per year, or $55.5 per hour.

Battery Engineer, Mechanical

Motive Companies

San Francisco, CA • On-site

$170K - $255K/yr

Full-time

Re-posted 11 days ago

Job description

Motive Workforce is seeking a Battery Engineer, Mechanical for an innovative manufacturer developing advanced lithium-ion battery systems. This is an opportunity to play a key role in designing next-generation battery packs used across multiple industries.

In this position, you will lead multidisciplinary engineering efforts throughout the complete product development lifecycle, from concept and prototyping through detailed design, manufacturing, and testing. You'll collaborate closely with engineering, program management, procurement, manufacturing, and customers to deliver high-performance battery solutions.

Responsibilities
  • Lead the mechanical design and development of advanced lithium-ion battery packs.
  • Collaborate across engineering disciplines to make critical technical and program decisions.
  • Identify technical challenges, develop solutions, and communicate impacts to internal and external stakeholders.
  • Develop and present CAD models, prototypes, and technical presentations.
  • Create supporting documentation including bills of materials, assembly procedures, and installation instructions.
  • Perform detailed design analysis, modeling, and performance simulations.
  • Support prototype builds, manufacturing, validation, and testing activities.
  • Verify battery hardware and software meet system requirements and performance objectives.
  • Ensure designs comply with applicable standards and regulatory requirements.

Qualifications
  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, Physics, or a related technical field.
  • Minimum 6 years of engineering experience within automotive, aerospace, industrial, energy storage, or related industries.
  • At least 3 years of experience designing lithium-ion battery packs or closely related technologies.
  • Experience designing, developing, and testing battery systems for electrified propulsion or stationary energy storage.
  • Strong written and verbal technical communication skills.
  • Demonstrated leadership, collaboration, and problem-solving abilities.
  • Ability to work effectively in a fast-paced engineering environment.
  • Working knowledge of UL or similar regulatory certification processes.
  • Proficiency with CAD software such as CATIA or SolidWorks.
  • Experience using analysis tools such as FEMAP, NASTRAN, or equivalent finite element analysis software.

Preferred Qualifications
  • Master's degree in Mechanical Engineering, Electrical Engineering, Physics, or a related field.
  • Four or more years of project management experience.
  • Experience with Battery Management System (BMS) software development and control algorithms.
  • Experience with battery modeling, simulation, or experimental battery research.

Why Apply?
This role offers the opportunity to contribute to the development of advanced battery technologies while working alongside experienced engineers in a collaborative, fast-paced environment. You'll have direct involvement in product development from concept through production and help bring innovative energy storage solutions to market.

Location: New Kensington, PA or San Francisco, CA

Pay: $170,000 - $255,000
Education:Employment Type: FULL_TIME

Apply