Chief of Staff to the CEO

H3X Technologies•Louisville, CO

2d•$130,000 - $170,000

About The Position

H3X is building America's advanced electric motor company, powering next-generation platforms in aerospace, defense, and marine. Our integrated motor drives deliver 12+ kW/kg, roughly 3x the power density of competing solutions. We're now scaling to megawatt-class systems, with customers working on everything from supersonic aircraft to turbine power generation for AI datacenters. Our team brings together engineers and operators from aerospace, defense, and motorsports, with deep expertise in electric machines, power electronics, material science, and advanced manufacturing. We're a small, fast-moving team doing hard engineering that matters, and we're looking for people who want to do the best work of their careers alongside us. We are looking for a Chief of Staff to work directly with our CEO and act as a force multiplier across the business. This is a high-ownership, high-variety role for someone who thrives in ambiguity, moves fast, and is equally comfortable building a financial model, untangling a broken internal process, drafting an investor update, or jumping on a customer call. You will operate at the intersection of strategy and execution, translating the CEO's priorities into concrete action, and bringing structure, data, and rigor to a company that's still writing its own playbook. This role is not a scheduling-and-logistics job; it's a build-and-operate job for someone who wants broad exposure to every part of a fast-growing startup.

Requirements

3–7+ years of experience in a high-growth startup, investment banking/consulting, venture capital, or similar high-rigor environment
Deeply AI-fluent. You have personally built agents or AI workflows that replaced real manual work, not just experimented with chatbots
Strong financial modeling and analytical skills; comfortable in spreadsheets, data analysis, and building reporting/dashboards from scratch
Demonstrated ability to manage multiple workstreams simultaneously and switch context quickly without dropping quality
Excellent written and verbal communication. You will be drafting investor updates, customer emails, and internal comms, often in the CEO's voice
A builder's mindset: comfortable creating processes and systems where none exist, and iterating quickly
High degree of trust, discretion, and judgment. You will have visibility into sensitive financial, strategic, and investor information
Startup experience strongly preferred; comfort with ambiguity, fast pace, and shifting priorities is essential
Bias toward action and ownership. If you see something broken or missing, you fix it

Nice To Haves

Some engineering, technical, or systems background is a strong plus

Responsibilities

Partner with the CEO on financial planning, budgeting, and forecasting; build and maintain financial models to support decision-making
Own Notion as the company's system of record. Drive documentation hygiene, structure, and consistent adoption across every team
Track key company and departmental metrics; build dashboards and reporting that give leadership a clear, real-time view of the business
Build internal automation and stand up AI-driven workflows to support sales, financials, manufacturing, and operations.
Identify operational bottlenecks and drive resolution, often by rolling up your sleeves and doing the work yourself before handing it off
Support backend sales/BD operations including quoting, pipeline management, customer communications, and order acknowledgements
Support the CEO and BD team on proposal development and deal support
Prepare materials for customer and partner meetings, including research and follow-up
Maintain and support relationships with existing investors, including regular updates, data requests, and board materials
Support the fundraising process end-to-end: data room management, financial/operational diligence, investor targeting research, and pitch materials
Help prepare board decks, investor updates, and other recurring communications
Act as a trusted thought partner to the CEO on strategic priorities and special projects
Represent the CEO's priorities across teams, ensuring alignment and follow-through on key initiatives
Take on ad hoc, cross-functional projects wherever the business needs help, this role's scope will shift with company priorities