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Executive Administrator

STN Incorporated
Pleasanton, CA

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Job Details

Full-time
$70,000 - $90,000 a year

Benefits

Paid holidays
Health insurance
Unlimited paid time off
Dental insurance
401(k)
Flexible spending account
Paid time off
Cell phone reimbursement
Vision insurance

Qualifications

Confidential information handling
Microsoft Outlook
Spreadsheets
Executive administrative support
Research
Communication platforms
Collaborative technology platforms

Full Job Description

Executive Administrator to the Chief of Staff (CoS)

Location: Onsite – Pleasanton, California
Reporting to: Chief of Staff

At STN, we don't just adapt to the digital future, we engineer it. Our mission is to help organizations thrive in a rapidly evolving technology landscape through strategic insight, cutting-edge solutions, and a security-first mindset. We provide end-to-end services spanning cloud consulting, AI infrastructure, and enterprise security, enabling secure, scalable, and future-ready transformation.

As trusted advisors, we align IT investments with business outcomes that drive performance and growth, starting with deep strategic engagement and delivering tailored solutions built for long-term impact.

Our approach is innovation-led and rooted in cybersecurity, with a focus on leveraging the right technologies to solve real-world challenges. We invest in our people and foster a culture of growth, inclusion, and purpose because we believe empowered teams build transformative technology.

Overview
We are seeking a highly organized, proactive Executive Administrator to directly support the Chief of Staff. This is a dual-purpose role: it combines the full scope of traditional executive assistance with hands-on support for the execution of cross-functional projects and initiatives the Chief of Staff drives across the business.

The ideal candidate is a trusted right hand — someone who anticipates needs, manages competing priorities with discretion, keeps projects moving, and operates comfortably amid the ambiguity and pace of a scaling company. You will have visibility in nearly every part of the business and play a meaningful role in helping leadership operate effectively.

Key Responsibilities

Project & Execution Support

Track action items, deadlines, and deliverables across multiple concurrent projects and initiatives, following up with internal and external stakeholders to keep work on schedule.
Build and maintain project trackers, status dashboards, checklists, and timelines; flag risks, slippage, and dependencies to the Chief of Staff proactively.
Coordinate cross-functional workstreams spanning legal/contracts, finance, insurance, HR, infrastructure, and commercial teams — ensuring the right people have what they need to deliver.
Prepare, format, and organize documents, presentations, spreadsheets, and reports; draft first versions for the Chief of Staff’s review.
Maintain organized filing systems and shared workspaces for contracts, vendor records, project files, and reference materials so information is easy to locate.
Conduct research, gather data, and assemble briefing materials to support decision-making and meeting preparation.
Help manage recurring operational processes (e.g., approvals, onboarding logistics, vendor compliance follow-ups) and recommend improvements over time.

Executive & Administrative Support

Calendar Management: Own and optimize the Chief of Staff’s calendar — scheduling meetings, resolving conflicts, protecting focus time, and ensuring the day runs smoothly.
Communications: Manage and triage email and messages, draft and proofread correspondence, and serve as a professional point of contact for internal colleagues and external partners.
Meeting Coordination: Schedule and prepare for meetings — agendas, materials, logistics, and technology — then capture notes and track follow-up items to completion.
Travel & Expenses: Arrange domestic and occasional international travel, build detailed itineraries, and prepare and submit expense reports accurately and on time.
Event & Offsite Support: Help plan and coordinate team meetings, leadership offsites, customer-facing events, and company functions.
Office & Logistics: Coordinate shipping/receiving, supplies, and on-site needs as required; liaise with vendors and service providers.
Confidentiality: Handle sensitive business, legal, financial, and personnel information with the utmost discretion and professionalism.

Experience & Qualifications

Required

3+ years of experience as an Executive Assistant, Administrative Assistant, or in a comparable coordination/operations role supporting senior leadership.
Exceptional organizational and time-management skills, with a proven ability to juggle multiple priorities and meet deadlines without losing details.
Strong written and verbal communication skills and a polished, professional presence.
High proficiency with Microsoft 365 (Outlook, Word, Excel, PowerPoint, Teams) and comfort learning new tools and systems quickly.
Sound judgment, discretion, and the ability to handle confidential information with integrity.
A proactive, ownership-driven mindset — you anticipate needs and follow through without being asked.

Preferred

Experience supporting a Chief of Staff, founder, or C-suite executive at a high-growth or technology company.
Familiarity with project-tracking and collaboration tools, document management, and basic contract/vendor administration workflows.
Experience coordinating across legal, finance, HR, or operations functions.

Why Join STN

A front-row seat at a fast-scaling company at the center of the AI infrastructure and enterprise IT market.
Direct partnership with the Chief of Staff and broad exposure across the executive team and every function of the business.
Meaningful ownership, room to grow, and the chance to shape how a high-velocity organization operates.

Compensation

Full-Time, Exempt
$70,000-$90,000/year, DOE

Benefits

Health Coverage – Medical, Dental & Vision
FSA Health and Dependent Care available
401(k) Plan
Unlimited Paid Time Off (PTO)
Observed Holidays Paid
Cell Phone Allowance
Collaborative, growth-driven culture

Candidates must be U.S. Citizens or Permanent Residents. We are unable to provide sponsorship at this time.

Employment is contingent upon the successful completion of a background check and reference verification. All applicants must be authorized to work in the United States on a full-time basis.

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executive administrator jobs in pleasanton ca

Executive Administrator

Executive Chief of Staff & Executive Administrator

City Manager

Executive Business Administrator

Business Administrator

Senior Director, Store Operations Planning and Admin

Executive Assistant & Office Administrator

Executive Director

Business Operations Support

Senior Director, CSS WEST

Director of Legal Operations [HE063]

Principal Deposits

CFO

Vice President- Japanese bilingual

Chief Financial Officer

Associate, Corporate Strategy

Chief Impact Officer

Chief of Staff

Chief of Staff to CEO – PAFMG

Chief Operating Officer

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