Workplace Community Manager & HR Coordinator

ZETTAJOULE, INC.Workplace Community Manager & HR Coordinator

Houston, TX

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Full time

Company website

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The Workplace Community Manager & HR Coordinator at ZettaJoule is a full-time, on-site position based in Houston, Texas, reporting to the Director of Human Resources. This role combines office management, HR administration, employee onboarding, basic IT coordination, and workplace engagement to ensure smooth daily operations and a positive employee experience within a fast-growing nuclear technology startup. Key responsibilities include managing office facilities, supplies, vendors, and visitors; maintaining employee records and HR documentation; coordinating new-hire onboarding and orientation; preparing laptops and office equipment in collaboration with IT; scheduling interviews; supporting leadership with calendars and meetings; and organizing company events and employee engagement activities.

The ideal candidate will have at least four years of experience in office management, HR coordination, or administrative support, along with strong organizational, communication, multitasking, and confidentiality skills. Proficiency in Microsoft Office or Google Workspace and Slack, as well as comfort with basic technology setup, is expected. Experience with HRIS or payroll platforms, startup environments, and the energy or engineering sector is an advantage.

Overall, this is a hands-on People Operations role suited to a proactive, detail-oriented, and service-minded professional who can manage multiple priorities, improve administrative processes, and help build a welcoming and efficient workplace as the company grows.

About ZETTAJOULE, INC.

We are a next-generation nuclear technology startup pioneering the commercialization of High-Temperature Gas-cooled Reactors (HTGRs) — a proven, safe, and transformative technology for delivering ultra-high-temperature heat and enabling a carbon-neutral future.

Our mission is to deploy the world’s first global fleet of Advanced Modular Reactors, redefining how clean energy powers industries, communities, and economies.

As a fast-growing company in its early stage, every team member — whether in engineering, program management, partnerships, operations, or business development — plays a direct role in shaping our technology, culture, and impact. You’ll join a collaborative, mission-driven team of internationally recognized experts and innovators working together to bring advanced nuclear energy to the world.

Description

Workplace Community Manager & HR Coordinator

• Location: Houston, Texas
• Employment Type: Full-Time
• Reports To: Director of Human Resources

About Us

We are a next-generation nuclear technology startup pioneering the commercialization of High-Temperature Gas-cooled Reactors (HTGRs) — a proven, safe, and transformative technology for delivering ultra-high-temperature heat and enabling a carbon-neutral future.

Our mission is to deploy the world’s first global fleet of Advanced Modular Reactors, redefining how clean energy powers industries, communities, and economies.

As a fast-growing company in its early stage, every team member — whether in engineering, program management, partnerships, operations, or business development — plays a direct role in shaping our technology, culture, and impact. You’ll join a collaborative, mission-driven team of internationally recognized experts and innovators working together to bring advanced nuclear energy to the world.

The Role

ZettaJoule is looking for a proactive, detail-oriented People Operations Coordinator to keep our Houston office running smoothly and to support our HR function day to day. Reporting to the Director of Human Resources, you will manage office operations, coordinate new-hire onboarding, provide first-line administrative and IT setup support, and help make sure every ZettaJoule employee has what they need to do great work. This is a hands-on, highly visible role for someone who enjoys variety, takes ownership, and wants to help build the people and operations foundation of a fast-growing nuclear technology company.

Key Responsibilities

• Manage day-to-day operations of the Houston office, including facilities, supplies, vendor relationships, mail/shipping, and general office upkeep.
• Serve as the first point of contact for visitors, vendors, and employees, maintaining a welcoming and professional office environment.
• Support the Director of Human Resources with day-to-day HR administration, including maintaining personnel records, processing HR paperwork, and tracking compliance documentation.
• Coordinate and assist with facilitating the new-hire onboarding process end to end — scheduling orientation, preparing welcome materials, and ensuring paperwork is completed accurately and on time.
• Set up laptops and basic office equipment for new hires, and serve as a liaison with IT for equipment provisioning and troubleshooting.
• Assist with scheduling interviews and coordinating candidate logistics in support of the recruiting process.
• Provide administrative support to the HR Director and broader leadership team, including calendar coordination, meeting logistics, and correspondence.
• Help plan and execute company events, team meetings, and employee engagement activities.
• Maintain office policies, procedures, and supply inventories, and identify opportunities to improve office operations.
• Handle sensitive employee and company information with a high degree of discretion and confidentiality.

What You Bring

• 4+ years of experience in an office management, HR assistant/coordinator, or administrative support role.
• Experience with onboarding new hires.
• Strong organizational skills with the ability to juggle multiple priorities and deadlines.
• Comfort with basic technology setup (laptops, monitors, peripherals) and coordinating with IT on equipment needs.
• Proficiency with Microsoft Office and/or Google Workspace and Slack.
• Excellent written and verbal communication skills.
• A high level of professionalism, discretion, and sound judgment when handling confidential information.
• Ability to work on-site full-time at ZettaJoule’s Houston office.

Certifications

None required for this role.

Citizenship

Not applicable — this role does not require access to export-controlled technical data. [To be confirmed by Legal/HR if requirements change.]

Even Better

• Experience supporting HR functions at a startup or fast-growing company.
• Familiarity with HRIS or payroll platforms (e.g., ADP, Gusto, Rippling, BambooHR).
• Prior experience coordinating IT/equipment onboarding for new employees.
• Notary public certification, or willingness to obtain one.
• Interest in or exposure to the energy, engineering, or technical/scientific sector.

Why Work for Us

• Competitive salary.
• Flexible hours in a collaborative, on-site team environment.
• Health/Life/Disability benefits.
• Vacation/Sick leave.
• Work alongside internationally recognized experts shaping the future of nuclear energy.

EEO Statement

ZettaJoule is an Equal Employment Opportunity employer committed to diversity and inclusion.

Salary

$55,000 - $70,000 per year

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