Peak Energy 

Job Title: Cell Engineer

Location: Broomfield, CO 

Department: Cell Engineering

Reports To: Cell R&D Manager

Position Type: Full-Time 

About Peak Energy  

Peak Energy is the first American venture to advance globally proven Sodium-Ion battery systems as the storage standard for the new era of renewable energy on a resilient grid.   

Sodium-Ion is cheap, readily available and safe, making it the leading contender in a rapidly evolving market.    

Our leadership team is powered by decades of expertise in scaling gigawatt-level innovation at world-class companies such as Tesla, Northvolt, Apple, Powin, Enovix, Zipline, Solid Power, and Fluence. We are backed by strategic investment and product partners such as TDK Ventures and Eclipse Ventures.    

We are a team of engineers, operators, entrepreneurs, and partners driven by a shared ambition to set the new performance standard for renewable energy and grid resilience.   

If you want to define how a new chemistry is tested, validated, and trusted at commercial scale — and to build the lab, fixtures, and methods that make that possible — we encourage you to apply and help us power a more sustainable future. 

About the Role - Cell Engineer

Peak Energy is seeking a Cell Engineer to play a key role in evaluating relevant sodium-ion technologies. Your efforts will ensure cross-functional alignment, timely delivery of projects, and the successful advancement of our sodium-ion battery systems. This position offers a unique opportunity to make a significant impact on the future of renewable energy storage and grid resilience. 

What You'll Do (Responsibilities)

• Lead next-generation cell design and quantitatively assess tradeoffs between cell electrochemical performance, cost, and cell energy density to optimize product impact.  

• Cost and performance modeling of advanced cell designs, including material selection and electrode design. 

• Analyze cell testing data to troubleshoot and understand performance issues and identify key areas of improvement. 

• Cell failure-mode analysis and method development toward degradation mechanism resolution. 

• Work with international and domestic battery material suppliers to guide technology roadmaps.  

• Benchmark next-generation materials and cell designs through electrochemical and physical testing of coin and pouch cells. 

• Contribute to the optimization of electrode formulations, coatings, and material selection to enhance cell energy density and performance. 

• Identify and resolve process challenges related to scale up of cell designs (e.g., cell assembly, electrolyte filling, formation processes). 

• Collaborate cross-functionally, partnering with the supplier industrialization engineering teams, and energy storage system teams and cell manufacturing partners to facilitate the scaling of cell designs from the lab to pilot production and mass manufacturing. 

What You'll Bring (Qualifications)

• Bachelor's, Master’s or Ph.D. in Engineering, Chemistry, Material Science, or a related field. 

• 3+ years of relevant industry experience in cell, battery, or electrochemical testing & development with demonstrated ownership of R&D or cell design. 

• Strong knowledge of electrochemistry and battery fundamentals, and able to communicate these skills within the context of an applied cell development framework.  

• Deep hands-on expertise in electrochemical characterization methods (DCIR/HPPC, EIS, cycle life, calendar life, dQ/dV) and the instrumentation behind them.  

• Exceptional problem-solving skills with the ability to work independently and make informed decisions.  

• Strong communication skills with the ability to present complex technical information clearly to both technical and non-technical stakeholders. 

• Demonstrated ability to learn quickly and develop a deep technical understanding of a broad range of topics.  

• Eligible to work in the U.S.  

• Excitement and willingness to contribute to a fast-paced, innovative environment.  

Preferred Qualifications

• Master’s or Ph.D. in Engineering, Chemistry, Material Science, or a related field and 5+ years of relevant industry experience in cell, battery, or electrochemical testing & development with demonstrated ownership of R&D or cell design. 

• Hands-on experience with pouch cell fabrication and testing. 

• Experience and understanding of electrode fabrication via slurry or dry electrode processing and how these processes relate to cell performance. 

• Experience in the production and/or characterization of battery materials, electrodes, and cells.  

• A strong understanding of liquid electrolyte development strategies. 

• Experience in manufacturing and mass production of batteries. 

• Proficiency in Python for data analysis. 

Peak Energy is committed to building a diverse and inclusive workforce. We strongly encourage women, people of color, and individuals from underrepresented groups to apply. We value skills, potential, and perspective over specific credentials. If you’re excited about this role but your experience doesn’t look perfect on paper, we still want to hear from you. 

Our Core Values 

• Speed Through Focus - Move fast but understand why. Focus on the goal, don't sacrifice quality.  

• Mission Over Self - It's about the greater good; confident humility. Take ownership and accountability.  

• Face the Brutal Truth - Transparency, honesty, big picture curiosity. Fearless decision making.  

• Be a Good Person - Kindness, collaboration and teamwork. 

Compensation & Benefits 

The salary range for this role is $120,000 - $170,000, with actual pay varying based on work location, experience, and skills. Our competitive benefits package includes: 

• Flexible time off  

• Comprehensive medical, dental, and vision coverage  

• Strong 401(k) plan  

• Equity opportunities  

• Many great work perks 

Join us to thrive in a supportive environment while making a meaningful impact in the energy sector!

At Peak Energy Technologies Inc., we believe that a diverse and inclusive workplace makes us a more capable, innovative, and competitive company. We welcome people who represent diversity in their backgrounds, ethnicities, cultures, and experiences. Peak Energy Technologies Inc. is an equal opportunity employer, aiming to reach our company’s full potential by cultivating an inclusive workforce. We do not discriminate on the basis of race, color, ancestry, religion, national origin, sexual orientation, citizenship, marital or family status, disability, gender identity or expression, veteran status, or any other legally protected status.