Nuclearn brings modern AI to one of the most demanding industries in the world: nuclear power. The work that keeps a plant running safely sits under mountains of procedures, regulatory documentation, and engineering review, and most of it is still done by hand. We build AI made for the realities of nuclear operations, not adapted from generic tools, so the engineers and operators who keep plants running can spend their time where it counts. We're out to rebuild how an entire industry runs, not tinker at its edges.

This matters more now than ever. Nuclear is having its biggest moment in a generation, and we're building at the center of it. As the world turns back to nuclear for clean, reliable power, operators have to do more without growing their experienced workforce at the same pace. Our aim reaches past any one tool: we want to partner with utilities across the industry to make nuclear faster to run and safer to scale.

We're not just bringing AI to nuclear, we're challenging the idea that a safety-first industry has to be a slow one. We win as one team, we make every dollar and hour count, and we treat our customers' wins as our own.

The role

Enterprise Account Executives at Nuclearn sell AI software into nuclear plants. It's one of the more interesting enterprise sales jobs in tech right now, if you want a real product and a market that matters.

We're post-PMF and growing fast, with seven AI products in market and demand accelerating as the U.S. expands nuclear capacity for the first time in decades. We need more senior AE capacity to keep up with what's in front of us.

Reporting to CRO Phil Zeringue, you'll own a portfolio of net-new logos with North American nuclear operators and work each deal from first conversation through close. It's an individual quota-carrying role, measured on net-new logos and the multi-year platform commitments behind them. Your job is to extend the credibility our founders and customers have already built, not to oversell it.

What makes this job different

A few things about the motion worth knowing up front:

Pipeline is 100% inbound today. Referrals, conferences, and the credibility our founders and customers carry. It's a real flow and it's growing, but it won't be enough forever, and you'll help build the structured outbound motion as we scale.
Cycles run six to eighteen months. The deals are worth it. Every close is a multi-year platform commitment with a nuclear operator.
You're selling to deep technical experts. You don't need to be a nuclear engineer to earn their respect. You need to know our products deeply and ask good questions.
Access to power is granted, not taken. You won't email your way to a VP of Operations or a CNO. You earn the introduction by being useful, credible, and patient with the people around them, until someone inside the account wants to make it.

If you've spent your career on transactional, high-volume inbound, this won't be the right fit. If you've sold complex software into regulated, technical industries, keep reading.

What you'll own

Pipeline and prospecting. Build and own a pipeline of net-new nuclear operators, working the inbound flow and prospecting on your own without waiting for a formal playbook. Forecast honestly.
Deal execution. Run multi-stakeholder cycles from discovery through procurement, treating discovery as ongoing because sponsors and priorities shift over a year-long deal. Coordinate technical evaluations with Customer Success Engineers, clear compliance and security reviews, and know when to walk away.
Customer relationships. Build relationships with Director and VP-level stakeholders and earn your way to executive sponsors over time, so you're in the room when their next AI investment is discussed.
Industry fluency. Stay current on nuclear trends, regulatory shifts, new reactor builds, and how AI is moving in adjacent industries. You'll be smarter than the average AI vendor for it.
Cross-functional partnership. Work with Marketing on conference strategy, partner with Customer Outcomes so delivery matches what you sold, and bring customer signal back to Product.

About you

You've been in enterprise B2B sales for 8+ years, with real time selling complex software into regulated or technical industries: utilities, energy, defense, aerospace, industrials, or healthcare. You've closed deals in the high six figures and beyond with buying committees of engineers, IT, security, and procurement, and you've held the thread on deals that took six months or more.

You're patient and organized, which sound like quiet traits but matter enormously here. You don't spiral when a deal sits for a month. You stay close to it, keep stakeholders engaged, and forecast honestly even when honest is uncomfortable.

Technical buyers tend to like you, not because you pretend to be one of them, but because you ask good questions and don't waste their time. You use AI tools in your own work, so when a customer asks how Nuclearn fits into their workflows, you can have that conversation.

You're up for building. You've stood up outbound motion before, and you're excited to help us shape what it looks like here.

One more thing: we put a lot of weight on candor. You'll tell a customer when Nuclearn isn't the right fit. You'll tell Phil when a deal you forecasted isn't going to close. That's rare in sales, and we mean it.

Nice to have, not required:

Experience selling into nuclear, utilities, or other energy markets
Track record of building pipeline through conferences and field motion
Background at a startup where the sales playbook was still being written|

You'll be in your element if...

We try to be honest about where people thrive here, because that saves everyone time. Some patterns we've seen:

You're comfortable building without a playbook. A lot of what you'll do here, you'll figure out as you go. We're past product-market fit, but we're still building most of the systems around it.
You're energized by fast cadence. The work moves fast. Customers are growing. Priorities shift. People who do well here lean into that pace rather than waiting for it to settle.
You bring decisions, not just questions. Our managers expect you to come with “Here's what I'm going to do, unless you tell me otherwise,” not “What should I do?”
You want candid feedback. We tell each other the hard things, with facts and without spin. People who do well here find this energizing, not uncomfortable.
You like reaching across function lines. Small team means everyone wears multiple hats. The boundary of your role is whatever the work needs, and that's a feature, not a bug.

How we work

We're a values-driven company. Six values shape how we work, and three will be especially visible in this role:

Customer Wins. Their win is our win. The deals worth closing are the ones where the customer is going to get real value.

Candor. Say the hard thing, facts only, no spin. This is rare in sales, and we mean it.

Ownership and Urgency. See it, own it, fix it. You move deals forward without waiting for permission.

You'll be in our Phoenix HQ four days a week (Wednesdays remote) with Phil, the founders, the rest of Sales, and the engineering team.

A few practical notes

Full-time, salaried with uncapped commission
Hybrid in our Phoenix HQ (≥80% in-office, Wednesdays remote)
Expect 30 to 50% travel to customer sites and industry conferences
U.S. citizenship or permanent residency required for DOE export compliance

The analog benefits

Equity participation
Medical, dental, and vision insurance
401(k) with 100% match on the first 4%
Unlimited PTO

How we hire

Fast, respectful, and practical. Our goal is first conversation to decision in three weeks or less.

30-minute intro with Head of People
60-minute interview with the hiring manager and CFO
60-minute interview with a cofounder

Nuclear is an industry that has historically drawn from a narrow talent pool, and we think widening that aperture is part of how the industry moves forward.

Enterprise Account Executive