Join Us
Help us scale the battery systems that power America.
Join Us
Help us scale the battery systems that power America.
Join Us
Help us scale the battery systems that power America.
Careers at Peak
We are Peak.
From next-gen cell design to full-site delivery, our team moves fast, works with purpose, and solves hard problems that actually matter. If you’re ready to build real things at real scale — join us.
Four values – One Mission
This is what we stand for and beleive in
Speed Through Focus
Mission
Over Self
Face the
Brutal Truth
Be a good
Person
1. Speed Through Focus
At Peak, we act with urgency, but never at the cost of thoughtfulness. We balance ambition with discipline—prioritizing impact over activity and using our focus to drive real progress, not just movement. This means working smart, not just fast, and holding ourselves accountable to high standards as we build for the future.
Speed Through Focus
Mission Over Self
2. Mission Over Self
Our team is driven by the shared purpose of transforming the energy landscape, not personal egos. We approach challenges with humility and confidence, taking ownership of outcomes while staying accountable to the broader mission. Here, we lead with a spirit of service—supporting each other, our partners, and the planet we serve.
3. Face the Brutal Truth
Transparency is non-negotiable at Peak. We confront reality head-on, openly sharing information, asking tough questions, and making decisions based on facts, not wishful thinking. By staying curious and fearless, we tackle challenges with clarity and courage, turning tough truths into better solutions.
Face the Brutal Truth
Be a good person
4. Be a Good Person
At Peak, kindness is a strength, not a soft skill. We champion collaboration, lift each other up, and create an environment where everyone feels valued and supported. We believe great teams are built on trust and respect, and we bring empathy and integrity to everything we do.
Join us
Application Process
Joining Peak means more than taking a job — it means building something that matters, with people who care.
Milestone
Step
Application
1
Explore our open roles and apply for a position that aligns with your skills and aspirations. We’re looking for people who are drawn to big, foundational problems — and ready to solve them in the real world.
Initial Screening
2
Our hiring team reviews applications to identify candidates who meet the key criteria for the role. We assess experience, intent, and potential to thrive in our environment.
Online Interview
3
Selected candidates meet with the hiring team and technical leads for structured discussions around their background, capabilities, and approach to problem solving.
On-site Panel
4
Finalists visit Peak’s site to meet the broader team, tour our facilities, and present a short case exercise. It’s a chance to evaluate each other in context — and see our systems in action.
References & Offer
5
After final interviews, we follow up with references and move quickly toward an offer. Our goal is clarity, alignment, and setting you up for success on day one.
Peak Team in Numbers
Employees
All working toward a cleaner, more sustainable energy future
Scaling
Growth rate over the past year
Locations
With teams in San Francisco and Denver
Life at Peak
This is whats it like to be a Peakarien
Another Day – Another challenge
No two days at Peak look the same — and that’s by design. We’re building something new, which means every day brings a fresh problem to solve or a new idea to explore.
This is fast-moving, high-ownership work. Whether you’re unblocking a team, improving a process, or tackling a new technical challenge, the work stays dynamic. We don’t do rinse-and-repeat — we build, adjust, and keep moving forward.
Grow with Us
Growth isn’t a perk — it’s embedded in how we work. You’ll take on real ownership, stretch into new challenges, and grow faster than you thought possible.
We’re a company full of builders and problem-solvers. That means every role is designed to stretch you, expose you to new ideas, and push you toward your next level. Whether that’s expanding your technical depth, stepping into leadership, or taking on new cross-functional challenges, we’ll support you and help you grow.
Build a Cleaner Future
We’re not just building batteries — we’re building the future of clean energy. Every role at Peak contributes to moving the world off of fossil fuels and toward a more resilient, sustainable, renewable-powered grid. From engineering to operations, we’re solving some of the toughest energy challenges of our time — and doing work that actually matters.
Trust is Our Foundation
At Peak, we move fast, stay humble, and care deeply about our mission and one another. Our teams are built on trust, real-time feedback, and shared ownership — because that’s how ambitious work gets done. You’ll find autonomy here but also support. You’ll be challenged, but never alone.
We’re a no-politics, low-ego environment with high standards and even higher conviction in what we’re building.
Performance-Driven Rewards
At Peak, we hold a high bar — and we celebrate the people who rise to it. We’ve built a culture where performance, accountability, and collaboration go hand in hand.
When you make an impact, it gets noticed. And we reward that impact through thoughtful compensation, equity, and opportunity because when we win, we win together.
The Fun Stuff
Yes, we’re building big things — but we’re also building a team people want to be part of. Whether it’s our epic company offsites, frequent team celebrations, or our upcoming summer showdown, the “OlymPeaks”, we make space to connect, play, and celebrate our wins together.
We’re building something that matters
— and we take care of the people making it possible.
Benefits
Our Approach to Benefits
Growing together
We offer a comprehensive, people-first benefits package designed to fuel your health, growth, and peace of mind, every step of the way.
01/
Comprehensive medical, dental, and vision coverage
02/
Flexible paid time off, sick leave, and generous parental leave
03/
401(k) with company match
04/
Employer paid life, disability, and income protection plans
05/
Cell phone reimbursement and commuter benefits
06/
Access to mental health and wellness programs
07/
Free lunches in our offices
08/
Free EV charging onsite at our Burlingame office
09/
Pet friendly offices
Thoughtfully-designed to support you
Our competitive, thoughtfully-designed benefits are here to support your health, financial well-being, and life outside of work. Some highlights include:
Meet us.
Break the rules.
& shape
tomorrow.
Voices from the Inside
Before you join — Hear from those who did
I joined Peak to solve something foundational — not incremental.
I joined Peak to solve something foundational — not incremental.
Stephen Zwanzig
Staff Manufacturing Design Engineer
Peak Energy
The honesty in how we work makes our ambition possible — and believable.
The honesty in how we work makes our ambition possible — and believable.
Adriana Raffin
Senior Process Engineer, Module
Peak Energy
Peak isn’t about optimizing — it’s about rethinking how energy systems actually get built.
Peak isn’t about optimizing — it’s about rethinking how energy systems actually get built.
Alain Saal-Dalma
Mechanical Engineering Intern
Peak Energy
We’re solving how to move electricity to when it matters — at grid scale.
We’re solving how to move electricity to when it matters — at grid scale.
Diana Sacks
Technical Project Manager, ESS Manufacturing
Peak Energy
We’re building real hardware, at real scale, with real consequences. That’s rare.
We’re building real hardware, at real scale, with real consequences. That’s rare.
Mike Chen
Mechanical Engineering Lead, ESS
Peak Energy
We challenge each other, a lot. But it’s always to get to the truth.
We challenge each other, a lot. But it’s always to get to the truth.
Sean Culver
Cell R&D Manager
Peak Energy
Four values – One Mission
This is what we stand for and beleive in
Speed Through Focus
Mission
Over Self
Face the
Brutal Truth
Be a good
Person
1. Speed Through Focus
At Peak, we act with urgency, but never at the cost of thoughtfulness. We balance ambition with discipline—prioritizing impact over activity and using our focus to drive real progress, not just movement. This means working smart, not just fast, and holding ourselves accountable to high standards as we build for the future.
Speed Through Focus
Mission Over Self
2. Mission Over Self
Our team is driven by the shared purpose of transforming the energy landscape, not personal egos. We approach challenges with humility and confidence, taking ownership of outcomes while staying accountable to the broader mission. Here, we lead with a spirit of service—supporting each other, our partners, and the planet we serve.
3. Face the Brutal Truth
Transparency is non-negotiable at Peak. We confront reality head-on, openly sharing information, asking tough questions, and making decisions based on facts, not wishful thinking. By staying curious and fearless, we tackle challenges with clarity and courage, turning tough truths into better solutions.
Face the Brutal Truth
Be a good person
4. Be a Good Person
At Peak, kindness is a strength, not a soft skill. We champion collaboration, lift each other up, and create an environment where everyone feels valued and supported. We believe great teams are built on trust and respect, and we bring empathy and integrity to everything we do.
Join us
Application Process
Joining Peak means more than taking a job — it means building something that matters, with people who care.
Milestone
Step
Application
1
Explore our open roles and apply for a position that aligns with your skills and aspirations. We’re looking for people who are drawn to big, foundational problems — and ready to solve them in the real world.
Initial Screening
2
Our hiring team reviews applications to identify candidates who meet the key criteria for the role. We assess experience, intent, and potential to thrive in our environment.
Online Interview
3
Selected candidates meet with the hiring team and technical leads for structured discussions around their background, capabilities, and approach to problem solving.
On-site Panel
4
Finalists visit Peak’s site to meet the broader team, tour our facilities, and present a short case exercise. It’s a chance to evaluate each other in context — and see our systems in action.
References & Offer
5
After final interviews, we follow up with references and move quickly toward an offer. Our goal is clarity, alignment, and setting you up for success on day one.
Peak Team in Numbers
Employees
All working toward a cleaner, more sustainable energy future
Scaling
Growth rate over the past year
Locations
With teams in San Francisco and Denver
Life at Peak
This is whats it like to be a Peakarien
Another Day – Another challenge
No two days at Peak look the same — and that’s by design. We’re building something new, which means every day brings a fresh problem to solve or a new idea to explore.
This is fast-moving, high-ownership work. Whether you’re unblocking a team, improving a process, or tackling a new technical challenge, the work stays dynamic. We don’t do rinse-and-repeat — we build, adjust, and keep moving forward.
Grow with Us
Growth isn’t a perk — it’s embedded in how we work. You’ll take on real ownership, stretch into new challenges, and grow faster than you thought possible.
We’re a company full of builders and problem-solvers. That means every role is designed to stretch you, expose you to new ideas, and push you toward your next level. Whether that’s expanding your technical depth, stepping into leadership, or taking on new cross-functional challenges, we’ll support you and help you grow.
Build a Cleaner Future
We’re not just building batteries — we’re building the future of clean energy. Every role at Peak contributes to moving the world off of fossil fuels and toward a more resilient, sustainable, renewable-powered grid. From engineering to operations, we’re solving some of the toughest energy challenges of our time — and doing work that actually matters.
Trust is Our Foundation
At Peak, we move fast, stay humble, and care deeply about our mission and one another. Our teams are built on trust, real-time feedback, and shared ownership — because that’s how ambitious work gets done. You’ll find autonomy here but also support. You’ll be challenged, but never alone.
We’re a no-politics, low-ego environment with high standards and even higher conviction in what we’re building.
Performance-Driven Rewards
At Peak, we hold a high bar — and we celebrate the people who rise to it. We’ve built a culture where performance, accountability, and collaboration go hand in hand.
When you make an impact, it gets noticed. And we reward that impact through thoughtful compensation, equity, and opportunity because when we win, we win together.
The Fun Stuff
Yes, we’re building big things — but we’re also building a team people want to be part of. Whether it’s our epic company offsites, frequent team celebrations, or our upcoming summer showdown, the “OlymPeaks”, we make space to connect, play, and celebrate our wins together.
We’re building something that matters
— and we take care of the people making it possible.
Benefits
Our Approach to Benefits
Growing together
We offer a comprehensive, people-first benefits package designed to fuel your health, growth, and peace of mind, every step of the way.
01/
Comprehensive medical, dental, and vision coverage
02/
Flexible paid time off, sick leave, and generous parental leave
03/
401(k) with company match
04/
Employer paid life, disability, and income protection plans
05/
Cell phone reimbursement and commuter benefits
06/
Access to mental health and wellness programs
07/
Free lunches in our offices
08/
Free EV charging onsite at our Burlingame office
09/
Pet friendly offices
Thoughtfully-designed to support you
Our competitive, thoughtfully-designed benefits are here to support your health, financial well-being, and life outside of work. Some highlights include:
Meet us.
Break the rules.
& shape
tomorrow.
Voices from the Inside
Before you join — Hear from those who did
I joined Peak to solve something foundational — not incremental.
Stephen Zwanzig
Staff Manufacturing Design Engineer
Peak Energy
The honesty in how we work makes our ambition possible — and believable.
Adriana Raffin
Senior Process Engineer, Module
Peak Energy
Peak isn’t about optimizing — it’s about rethinking how energy systems actually get built.
Alain Saal-Dalma
Mechanical Engineering Intern
Peak Energy
We’re solving how to move electricity to when it matters — at grid scale.
Diana Sacks
Technical Project Manager, ESS Manufacturing
Peak Energy
We’re building real hardware, at real scale, with real consequences. That’s rare.
Mike Chen
Mechanical Engineering Lead, ESS
Peak Energy
We challenge each other, a lot. But it’s always to get to the truth.
Sean Culver
Cell R&D Manager
Peak Energy
Four values – One Mission
This is what we stand for and beleive in
Speed Through Focus
Mission Over Self
Face the Brutal Truth
Be a good Person
1. Speed Through Focus
At Peak, we act with urgency, but never at the cost of thoughtfulness. We balance ambition with discipline—prioritizing impact over activity and using our focus to drive real progress, not just movement. This means working smart, not just fast, and holding ourselves accountable to high standards as we build for the future.
Speed Through Focus
Mission Over Self
2. Mission Over Self
Our team is driven by the shared purpose of transforming the energy landscape, not personal egos. We approach challenges with humility and confidence, taking ownership of outcomes while staying accountable to the broader mission. Here, we lead with a spirit of service—supporting each other, our partners, and the planet we serve.
3. Face the Brutal Truth
Transparency is non-negotiable at Peak. We confront reality head-on, openly sharing information, asking tough questions, and making decisions based on facts, not wishful thinking. By staying curious and fearless, we tackle challenges with clarity and courage, turning tough truths into better solutions.
Face the Brutal Truth
Be a good person
4. Be a Good Person
At Peak, kindness is a strength, not a soft skill. We champion collaboration, lift each other up, and create an environment where everyone feels valued and supported. We believe great teams are built on trust and respect, and we bring empathy and integrity to everything we do.
Join us
Application Process
Joining Peak means more than taking a job — it means building something that matters, with people who care.
Milestone
Step
Application
1
Explore our open roles and apply for a position that aligns with your skills and aspirations. We’re looking for people who are drawn to big, foundational problems — and ready to solve them in the real world.
Initial Screening
2
Our hiring team reviews applications to identify candidates who meet the key criteria for the role. We assess experience, intent, and potential to thrive in our environment.
Online Interview
3
Selected candidates meet with the hiring team and technical leads for structured discussions around their background, capabilities, and approach to problem solving.
On-site Panel
4
Finalists visit Peak’s site to meet the broader team, tour our facilities, and present a short case exercise. It’s a chance to evaluate each other in context — and see our systems in action.
References & Offer
5
After final interviews, we follow up with references and move quickly toward an offer. Our goal is clarity, alignment, and setting you up for success on day one.
Peak Team in Numbers
Employees
All working toward a cleaner, more sustainable energy future
Scaling
Growth rate over the past year
Locations
With teams in San Francisco and Denver
Life at Peak
This is whats it like to be a Peakarien
Another Day – Another challenge
No two days at Peak look the same — and that’s by design. We’re building something new, which means every day brings a fresh problem to solve or a new idea to explore.
This is fast-moving, high-ownership work. Whether you’re unblocking a team, improving a process, or tackling a new technical challenge, the work stays dynamic. We don’t do rinse-and-repeat — we build, adjust, and keep moving forward.
Grow with Us
Growth isn’t a perk — it’s embedded in how we work. You’ll take on real ownership, stretch into new challenges, and grow faster than you thought possible.
We’re a company full of builders and problem-solvers. That means every role is designed to stretch you, expose you to new ideas, and push you toward your next level. Whether that’s expanding your technical depth, stepping into leadership, or taking on new cross-functional challenges, we’ll support you and help you grow.
Build a Cleaner Future
We’re not just building batteries — we’re building the future of clean energy. Every role at Peak contributes to moving the world off of fossil fuels and toward a more resilient, sustainable, renewable-powered grid. From engineering to operations, we’re solving some of the toughest energy challenges of our time — and doing work that actually matters.
Trust is Our Foundation
At Peak, we move fast, stay humble, and care deeply about our mission and one another. Our teams are built on trust, real-time feedback, and shared ownership — because that’s how ambitious work gets done. You’ll find autonomy here but also support. You’ll be challenged, but never alone.
We’re a no-politics, low-ego environment with high standards and even higher conviction in what we’re building.
Performance-Driven Rewards
At Peak, we hold a high bar — and we celebrate the people who rise to it. We’ve built a culture where performance, accountability, and collaboration go hand in hand.
When you make an impact, it gets noticed. And we reward that impact through thoughtful compensation, equity, and opportunity because when we win, we win together.
The Fun Stuff
Yes, we’re building big things — but we’re also building a team people want to be part of. Whether it’s our epic company offsites, frequent team celebrations, or our upcoming summer showdown, the “OlymPeaks”, we make space to connect, play, and celebrate our wins together.
We’re building something that matters
— and we take care of the people making it possible.
Benefits
Our Approach to Benefits
Growing together
We offer a comprehensive, people-first benefits package designed to fuel your health, growth, and peace of mind, every step of the way.
01/
Comprehensive medical, dental, and vision coverage
02/
Flexible paid time off, sick leave, and generous parental leave
03/
401(k) with company match
04/
Employer paid life, disability, and income protection plans
05/
Cell phone reimbursement and commuter benefits
06/
Access to mental health and wellness programs
07/
Free lunches in our offices
08/
Free EV charging onsite at our Burlingame office
09/
Pet friendly offices
Thoughtfully-designed to support you
Our competitive, thoughtfully-designed benefits are here to support your health, financial well-being, and life outside of work. Some highlights include:
Meet us.
Break the rules.
& shape
tomorrow.
Voices from the Inside
Before you join — Hear from those who did
I joined Peak to solve something foundational — not incremental.
Stephen Zwanzig
Staff Manufacturing Design Engineer
Peak Energy
The honesty in how we work makes our ambition possible — and believable.
Adriana Raffin
Senior Process Engineer, Module
Peak Energy
Peak isn’t about optimizing — it’s about rethinking how energy systems actually get built.
Alain Saal-Dalma
Mechanical Engineering Intern
Peak Energy
We’re solving how to move electricity to when it matters — at grid scale.
Diana Sacks
Technical Project Manager, ESS Manufacturing
Peak Energy
We’re building real hardware, at real scale, with real consequences. That’s rare.
Mike Chen
Mechanical Engineering Lead, ESS
Peak Energy
We challenge each other, a lot. But it’s always to get to the truth.
Sean Culver
Cell R&D Manager
Peak Energy