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Contractor, Administrative Assistant

Andreessen Horowitz

Menlo Park, CA · Posted November 3, 2026

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How AI is used in this kind of work

Among secretaries and administrative assistants, except legal, medical, and executive, AI is already used for a large share of the tasks. Measured exposure for secretaries and administrative assistants, except legal, medical, and executive: 45% (high).

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Skills this job asks for

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  • Salesforce
  • GitHub
  • Databricks
  • Figma

About the job

Founded in Silicon Valley in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (aka a16z) is a venture capital firm that backs bold entrepreneurs building the future through technology. We are stage agnostic . We invest in seed to venture to growth-stage technology companies, across AI , bio + healthcare , consumer , enterprise , fintech , frontier , games , and companies building toward American dynamism . a16z has $100B+ under management across multiple funds.

We’ve established a team that is defined by respect for the entrepreneur and the company-building process; we know what it’s like to be in the founder’s shoes. We’ve invested in companies like Anduril, Airbnb, Coinbase, Cursor, Databricks, Deel, Figma, GitHub, Roblox, SpaceX, and Stripe. Our team is at the forefront of new technology, helping founders and their companies impact and change the world.

The Role

We are looking for an Administrative Assistant to contribute to the growth of our firm. This is a contract opportunity to work alongside individuals who are driven by excellence and a passion for technology. The ideal candidate is a team player with exceptional communication skills, meticulous attention to detail, and creative problem-solving skills. This role supports multiple people and requires the ability to juggle competing responsibilities while prioritizing.

Daily responsibilities will include calendar management, meeting coordination, Salesforce data entry, as well as some basic event planning and on-site network support. We are looking for someone with strong experience working with cross-functional teams in fast-paced environments, and the ability to handle sensitive information with excellent judgment, diplomacy and discretion.

You are comfortable working both remotely or in the office. This role requires at least 3-4 days in the office per week, with frequent presence in the Menlo Park, CA or San Francisco, CA office.

To join our team, you should be excited to:

Build and cultivate long-term relationships

Handle highly confidential information and documents with discretion and confidentiality

Manage and maintain multiple calendars, including recurring meetings, prioritizing appropriately and using good judgment in offering solutions to complex scheduling and meeting planning needs

Provide event management support on behalf of the team, as well as occasionally staffing events

Proactively manage communication, and respond to urgent inquiries from internal / external stakeholders on the teams’ behalf

Operate with exceptional attention to detail. Anticipate potential changes or shifts in priorities amidst simultaneous demands for attention

Minimum Qualifications

3+ years of high level experience providing strategic support to multiple managers and/or large teams

A strong team player, who thrives in a collaborative setting and works well within a matrixed environment, poised and able to work with individuals at all levels of the organization

Proactive, positive and personable with excellent communication skills and an upbeat, “can do” attitude- willing to take initiative with confidence

Pride in ownership. We are a self-starting, proactive culture and take pride in doing what we say we will do to the best of our ability

Resilient, with ability to manage multiple projects and deliver quality work to deadlines

Discretion, diplomacy and excellent judgment; high degree of integrity when dealing with confidential and sensitive information

Exceptional attention to detail

Strong calendar management and prioritization skills

Advanced proficiency with Gmail, Google Calendar, Google Suite and Salesforce as well as Zoom

Low ego, high empathy, and the capacity to collaborate effectively with diverse teams

The anticipated hourly rate for this role is $50.00-$55.00, actual starting pay may vary based on a range of factors which can include experience, skills, and scope.

a16z culture

We do only first class business and only in a first class way

We take a long view of relationships, because we are in the relationship business

We believe in the future and bet the firm that way

We are all different, we recognize that, and we win

We celebrate the good times

We do it for the team

We play to win

At a16z we are always looking to hire the absolute best talent and recognize that diversity in our experiences and backgrounds is what makes us stronger. We hire candidates of any race, color, ancestry, religion, sex, national origin, sexual orientation, gender identity, age, marital or family status, disability, Veteran status, and any other status. These differences are what enables us to work towards the future we envision for ourselves, our portfolio companies, and the World.

Our organization participates in E-Verify. Click here to learn about E-Verify.

Andreessen Horowitz hereby reserves the right to make use of any unsolicited resumes received from outside recruiting agencies and / or individual recruiters without being responsible for payment of any fees asserted from the use of unsolicited resumes.