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Contractor, Social Media Manager

Andreessen Horowitz
San Francisco, CA Contractor
POSTED ON 8/5/2025
AVAILABLE BEFORE 10/2/2025

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, crypto, enterprise, fintech, games, and companies building toward American dynamism. a16z has $46B in assets 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. Speedrun is a16z’s program for very early-stage startups, where we invest in founders pushing the limits in Tech, Entertainment, & AI.

Our team offers hands-on help with product, go-to-market, growth, fundraising, and hiring. It’s early days for Speedrun, which means you’ll play a central role in building and scaling the infrastructure behind the program as it's being built.

Through Speedrun, we’ve invested in over 120 startups like k-ID, Hedra, Favorited, Altera, Lil Snack, Human Computer, Nunu, Genway, and SweatPals. Our team is at the forefront of new technology, helping founders and their companies impact and change the world.

The Role

We are seeking a creative and driven contract Social Media Manager to lead our efforts in building and engaging our online community. This role is essential to amplifying our brand, fostering relationships, and driving engagement with our audience. The Community and Social Media Manager will be responsible for developing and executing social media strategies, managing content creation, and nurturing our community of followers.

To join our team, you should be excited to:

  • Social Media Strategy: Develop and implement comprehensive social media strategies that align with SPEEDRUN’s brand and objectives. Focus on increasing engagement, growing our audience, and enhancing our online presence.
  • Content Creation: Create, curate, and manage high-quality content across all social media platforms, including posts, videos, stories, and blogs. Ensure content is aligned with our brand voice and resonates with our target audience.
  • Community Engagement: Actively engage with our community across social media platforms, responding to comments, messages, and discussions in a timely and professional manner. Foster a positive and inclusive community environment.
  • Campaign Management: Plan and execute social media campaigns that promote our programs, events, and key initiatives. Track and analyze campaign performance, making data-driven decisions to optimize results.
  • Collaboration: Work closely with the marketing, content, and program teams to ensure consistent messaging and alignment with broader marketing strategies.
  • Analytics & Reporting: Monitor social media metrics and provide regular reports on performance, insights, and trends. Use data to inform and refine strategies for continuous improvement.

Minimum Qualifications

  • Experience: 7 years of experience in social media management, community building, or digital marketing, preferably within the tech or gaming industries.
  • Creativity: A creative thinker with the ability to generate fresh ideas for content and engagement that resonate with our audience.
  • Communication Skills: Exceptional written and verbal communication skills, with a strong understanding of how to engage diverse online communities.
  • Technical Skills: Proficiency with social media platforms, content management systems, and analytics tools. Experience with graphic design or video editing is a plus.
  • Passion for Tech, Entertainment, & AI: A deep passion for the tech, entertainment, and AI industries, with a strong understanding of the culture and community within these spaces.
  • Self-Motivation: A self-starter with the ability to work independently, manage multiple projects, and thrive in a fast-paced, dynamic environment.

The anticipated hourly range for this role is between $75.00 - $87.00, 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.


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.

Salary : $75 - $87

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