We invite you to join the Greycroft Talent Network

companies
Jobs

Stock Administrator

SteelHouse

SteelHouse

Administration
United States
Posted on Aug 23, 2025

At MNTN, we put our people first, full stop. This allows our company culture to be defined by our team members and their shared values, like trust, ambition, quality, radical honesty, and compassionate leadership. It’s why we all really love working for the Hardest Working Software in Television™ (and also why we were named one of Ad Age’s Best Places To Work in 2024.)

We pride ourselves on bringing unrivaled performance and simplicity to Connected TV advertising. Our self-serve technology makes running TV ads as easy as search and social, helping brands drive measurable conversions, revenue, site visits, and more. It’s what led MNTN to being named one of Fast Company's Most Innovative Companies in 2023. You can learn more about us and everything we do by visiting https://mountain.com/.

We’re committed to innovation that empowers, not replaces. At MNTN, AI is a tool for growth, enhancing efficiency while keeping a people-first approach. Our goal is to streamline workflows and drive new solutions—without compromising the human element that makes our company great.

So if wanting to do more, own more, and make a bigger impact comes naturally to you, then you may be the person we're looking for to join us in our next stage of growth.

As the Stock Administrator, you will play a critical role in managing the company’s stock programs. You will oversee all aspects of public company stock administration, ensuring accuracy, compliance, and operational excellence across the program. This role is essential in maintaining, designing, and improving core processes while partnering cross-functionally to deliver a seamless employee experience.

To succeed, you’ll bring strong problem-solving skills, a deep understanding of stock administration, and the ability to collaborate effectively with teams across the business. You should be confident navigating ambiguity, adaptable to change, and proactive in developing solutions that drive the success of our unique stock programs.

What You’ll Do:

  • Administer all aspects of the company’s stock programs, including new grants, vesting, distributions, terminations, and cancellations.
  • Ensure accuracy, timeliness, and integrity of all data within the system of record, including oversight of tax reporting for stock awards.
  • Collaborate with cross-functional teams to design, implement, and maintain effective SOX processes and controls around stock processes.
  • Provide expertise in stock administration and ensure compliance with company policies, accounting standards, securities laws, and domestic/international tax regulations.
  • Generate and maintain stock-based compensation reports in accordance with GAAP and IFRS; support external auditors during annual audits.
  • Partner closely with Payroll, Legal, and People teams to streamline equity-related processes and resolve issues.
  • Serve as the lead resource for employee inquiries.
  • Collaborate with cross-functional teams to design, implement, and maintain effective controls around stock processes.
  • Contribute to special projects and initiatives as needed.

What You’ll Bring:

  • 7+ years of experience in stock plan administration.
  • Strong knowledge of multiple equity instruments.
  • In-depth understanding of compensation-related laws and regulations.
  • Excellent written and verbal communication skills.

Nice to Haves:

  • Certified Equity Professional (CEP) designation or equivalent certification.
  • Experience managing stock programs in both public company environments.
  • Familiarity with dual-class stock structures.

MNTN Perks:

  • 100% remote within the US
  • Flexible vacation policy
  • Annual vacation allowance for travel related expenses
  • Three-day weekend every month of the year
  • Competitive compensation
  • 100% healthcare coverage
  • 401k plan
  • Flexible Spending Account (FSA) for dependent, medical, and dental care
  • Access to coaching, therapy, and professional development

About MNTN:

Our recruiters will always reach out using an email address ending with @mountain.com OR @mntn.com. If you’re contacted by someone without that address and they mention a Reference Code (which we never use), then that ain’t us folks. Tell those trolls to take a hike–you’re waiting to climb a MNTN.

MNTN provides advertising software for brands to reach their audience across Connected TV, web, and mobile. MNTN Performance TV has redefined what it means to advertise on television, transforming Connected TV into a direct-response, performance marketing channel. Our web retargeting has been leveraged by thousands of top brands for over a decade, driving billions of dollars in revenue.

Our solutions give advertisers total transparency and complete control over their campaigns all with the fastest go-live in the industry. As a result, thousands of top brands have partnered with MNTN, including OneWheel, Tarte, Decked, and National University.

#LI-Remote