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Job Announcement: November 15, 2021

Zelos is a fast-paced and team-oriented battery startup located in San Leandro, California. We
are building a rechargeable alkaline technology that can overcome safety, performance, and
cost limitations of lithium-ion for energy storage and backup power applications.


More information about us is below and at


We are now hiring for a Battery Process Engineer to play a vital role in battery prototype fabrication
at our lab space at the Gate 510 facility, as well as scaling the processes to volume manufacturing
processes. The ideal candidate is hands-on, a natural team leader, and able to take on a variety of
challenges each day. You will work in a small team of engineers and scientists on battery
engineering, R&D projects and delivery of prototypes to customers. Projects will be focused on
helping to scale-up our process from the lab to the pilot line and to mass production. The successful
candidate is also expected to participate in optimization of cell assembly and improvement of cell
performance as well as in general lab duties. The ideal applicant should have prior hands-on
experience in a wet chemistry lab or with batteries.


Applicants must be comfortable working in a fast-paced and precision-driven lab environment.

These are some of the tasks you will need to perform in this role. As a growing company,
responsibilities will evolve over time.



  •  Help to transition our process from the lab scale to the small production line

  •  Develop, prepare and optimize new slurry coating and electrode production tools and techniques geared toward manufacturing scale-up (pilot line)

  •  Work with the tool and pilot lines vendors

  •  Refine and improve existing cell assembly tools and techniques for manufacturing scale-up

  •  Run experiments and use statistics to evaluate multiple different approaches and compare the effectiveness of each

  •  Collaborate with cell component design engineers and equipment design vendors.

  •  Contribute to safety, quality, metrology, and production philosophy to execute our mission


Success Factors:


  •  ​Embrace new challenges, learn new techniques, and surpass internal goals

  •  Curious, hands-on approach to problem-solving

  •  Shares a real passion for our mission and vision of a carbonless future

  •  Demonstrate flexibility and resourcefulness allowing smooth adaptation to a constantly evolving environment and work priorities

  •  Possesses a can-do spirit and is a collaborative leader and teammate

  •  Organized, meticulous, and has clear written and verbal communication skills


For all tasks, you will need to engage well with scientific, engineering, technical, operations, and

administrative colleagues in a flexible R&D startup setting. Familiarity with Excel, Word and

PowerPoint in Windows and/or Mac is essential.

Background and Experience

  • BS or higher degree in chemical engineering, materials science, mechanical engineering,

or a similar concentration

  •  Minimum of 5 years experience with a Bachelor’s degree, or a minimum of 3 years

experience with a Master’s degree

  •  Proven experience working on process development for manufacturing scale-up

  • Competent in safe laboratory practices especially in handling powders, solvents, and


  •  Experience with DOE style experimentation and statistical analysis of data

  • Knowledge of batteries or electrochemical energy storage materials is a plus, particularly

alkaline technologies, Zn-Mn, or other types of aqueous-base chemistries.
Hands-on knowledge of battery or other energy device assembly and testing is preferred.

Join Us!

Applicants must be eligible to work in the United States, as we cannot sponsor visa
applications at this time.


We welcome your application even if you do not have all of the skills and experience listed
above, provided you include a cover letter and resume indicating proven ability to learn quickly
and work as part of a team, and have familiarity and interest in an operational role in a startup


To apply, please email a brief cover letter and resume to that are targeted
to this position. Applications that do not clearly speak to this opening and our company might
not be considered. Due to the high volume of applications, we will only be able to respond to
candidates who are selected for follow-up. No phone calls, please.


Zelos is an Equal Opportunity Employer. Diversity is a strength in the workplace, and we do not
discriminate on the basis of any criteria prohibited by local, state, or federal law, including
actual or perceived race, ethnicity, ancestry, appearance, immigration status, national origin,
age, religion, marital or family status, veteran status, physical or mental disability, sex, gender,
sexual orientation or gender identity or expression.

About Zelos Energy Ltd.

Zelos Energy is committed to building the next generation of green batteries. Our patented
rechargeable alkaline technology provides safe, economical, and sustainable solutions for both
consumer and industrial uses. Products in development include deep cycle storage batteries,
lead-acid replacement, and low-cost cylindrical formats – for applications such as
uninterruptible power supply (UPS), energy storage solutions (ESS) for wind and solar, and
military and marine uses.


Our completely non-toxic alkaline chemistry also avoids the fire,
safety, and supply chain risks of options such as lead-acid and lithium-ion.


We are headquartered in Silicon Valley, and our team has more than 100 years of combined scientific
and entrepreneurial experience. In 2020, we were awarded a competitively-selected multi-year
$1.8 million California Energy Commission grant for R&D scale-up in alternatives to Li-ion.


With Zelos, Help Is On The Way for our green energy future.

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