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Open nowPosted 9 hours ago

Senior Executive Assistant

Mainspring Energy90 open roles

Pay
$128,000 – $150,000 a year
Where
Menlo Park, CA
Work mode
On site
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Your applicationOpen nowSenior Executive AssistantMainspring Energy · Menlo Park, CA

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. Mainspring Energy postings stay open a median of 47 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.7%14 days
  5. 35.6%30 days
  6. 58.0%60 days
This job: posted 9 hours ago

Mainspring Energy median: 47 days open

The posting

About Mainspring

Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.

The core values that ground our work, guide our decisions, and connect us together:

  • Pragmatic Optimism
  • Excellence without Ego
  • Proactive Collaboration

Job Overview

Key Responsibilities

  • Complex Scheduling: Manage, align, and balance complex calendars for supported executive leaders, proactively resolving scheduling conflicts and optimizing their daily time
  • Meeting Preparation: Prepare detailed briefing materials, agendas, background research, and presentations ahead of leadership meetings, board discussions, and external partner interactions
  • Confidential Communications: Screen and prioritize incoming requests and communications; draft professional correspondence and navigate highly sensitive or confidential inquiries with complete discretion, tact, and diplomacy
  • Travel Logistics: Coordinate complex, multi-leg domestic and international travel arrangements, including flights, accommodation, ground transportation, itineraries, and travel documentation
  • Expense Management: Track, compile, and reconcile monthly expense reports and credit card statements in full alignment with company finance policies
  • EA Network Collaboration: Partner closely with other Executive Assistants across the organization to ensure seamless cross-functional alignment, shared best practices, coverage support, and cohesive communications across all executive functions
  • Operational & Project Support: Drive or assist with special administrative initiatives, leadership projects, and executive-led programs from kickoff through execution
  • Cross-Functional Connection: Build strong, collaborative relationships across teams (People Ops, Finance, Legal, Operations) to keep internal workflows transparent and information moving smoothly

Qualifications & Requirements

  • Experience: 7+ years of experience supporting executive leadership (C-suite, General Counsel, VP level), ideally within a fast-paced, high-growth environment
  • Reporting Structure: Experience reporting into HR/People Operations while partnering across multiple senior executive stakeholders
  • Work Arrangement: Ability and willingness to work a hybrid schedule (on-site [X] days/week in our [City, State] office)
  • Technical Skills: Advanced proficiency in Google Workspace; experience with expense platforms (e.g., Concur, Ramp, Brex) and project management platforms (e.g., Asana, Notion)
  • Communication & Discretion: Exceptional written and verbal communication skills; absolute integrity and mature judgment when handling confidential financial, legal, and personnel matters
  • Collaboration & Problem-Solving: Strong team-player orientation with a track record of building positive relationships with fellow EAs, internal teams, and external stakeholders under fast-paced conditions

Preferred Qualifications

  • Bachelor’s degree in Business Administration, HR, Communications, or a related field
  • Experience supporting Finance and/or Legal executive functions
  • Background in coordinating hybrid leadership retreats, offsites, or company-wide events

Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.

In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.

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