Submer enables organizations scaling AI to overcome the limits of traditional datacenters across power, compute density and efficiency.
We design and deliver scalable, high-density AI datacenter infrastructure built around industry-leading liquid cooling, supporting everything from early AI deployments to full-scale production environments.
Acting as a full-stack delivery partner, Submer provides advisory, design, build and IT integration through a single point of accountability, working with a deep ecosystem of technology specialists. This end-to-end approach accelerates time-to-AI while reducing operational cost, complexity and environmental impact.
What impact you will have
Submer is seeking a highly organized, proactive, and service-oriented Executive Assistant to support our growing team in Houston. This role combines executive support for senior leadership with responsibility for ensuring the efficient day-to-day operation of our office.
The ideal candidate is a trusted business partner who thrives in a fast-paced environment, anticipates needs before they arise, and creates a welcoming, professional experience for employees, customers, and visitors. Beyond traditional executive assistant responsibilities, this individual will play a key role in office operations, culture, and administrative coordination.
This is a highly visible position with the opportunity to build a long-term career path within the organization.
What You’ll Do
Executive Support
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Provide dedicated support to two C-level executives.
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Manage complex calendars, scheduling, and meeting coordination.
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Coordinate domestic and international travel arrangements and expense reporting.
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Prepare presentations, meeting materials, and correspondence.
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Track action items and follow up to ensure timely completion.
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Manage confidential and sensitive business information with discretion.
Office Management
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Serve as the primary point of contact for the Houston office.
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Welcome and host visitors, customers, candidates, and partners.
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Oversee front desk and reception activities.
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Coordinate office supplies, vendors, facilities requests, and general office operations.
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Plan and support team meetings, employee events, and office gatherings.
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Ensure conference rooms, common areas, and office facilities are maintained and guest-ready.
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Partner with HR on onboarding logistics, workspace preparation, and employee experience initiatives.
Administrative Operations
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Support document management, filing, and recordkeeping.
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Assist with invoice processing, purchase requests, and administrative reporting.
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Coordinate logistics for leadership meetings and company events.
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Improve administrative processes and implement organizational best practices.
What Success Looks Like
In this role, success will be measured by your ability to:
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Ensure executive schedules run smoothly and efficiently.
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Create a seamless experience for visitors, employees, and business partners.
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Maintain a highly organized and professional office environment.
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Anticipate business needs and proactively solve problems.
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Improve operational efficiency through process improvements and strong administrative execution.
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Become a trusted partner to leadership and a go-to resource for the broader team.
What you’ll need
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5+ years of experience as an Executive Assistant, Office Manager, Executive Administrator, or similar role.
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Experience supporting C-level or senior executive leadership.
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Strong organizational and multitasking skills.
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Excellent verbal and written communication skills.
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Professional presence with exceptional customer service skills.
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Experience managing office operations and visitor engagement.
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Proficiency with Microsoft Office, Outlook, Teams, and common business applications.
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Ability to handle confidential information with discretion.
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Highly self-motivated and capable of working independently.
What we offer
Attractive compensation package reflecting your expertise and experience.
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A great work environment characterized by friendliness, international diversity, flexibility, and a hybrid-friendly approach.
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You´ll be part of a fast-growing scale-up with a mission to make a positive impact, offering an exciting career evolution.
Legal
Our job titles may span more than one job level. The actual base pay is dependent on a number of factors, such as transferable skills, work experience, business needs and market demands.