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Growth Marketing Associate

Serotonin

Marketing & Communications, Sales & Business Development

New York, NY, USA

USD 50k-80k / year

Posted on Nov 26, 2025

Who is Serotonin

Serotonin is the top go to market firm for transformative technologies, specializing in marketing, strategy, recruiting, and legal services. With a global team of 90 across 15 countries, Serotonin has supported over 300 clients in consumer tech, web3 infrastructure, digital assets, venture capital, and AI since its launch in 2020. Delivering end-to-end go-to-market solutions across all major marketing channels—including public relations, growth marketing, on-chain analytics, content, research, social, and design—Serotonin accelerates global innovation. At the core of our business is the Serotonin Platform, serving as a central nucleus for the web3 ecosystem, connecting builders and founders with essential resources to drive business growth.

About the role

Serotonin is seeking a Growth Marketing Associate to support day-to-day growth marketing activities for Serotonin clients. This role is ideal for someone early in their marketing career who is eager to learn, contribute, and grow within a fast-moving team.

The ideal candidate is a curious and motivated digital marketer with some exposure to demand generation, user acquisition, or social performance efforts. You should be excited about working across a variety of growth initiatives that introduce blockchain and Web3 concepts to different audiences including developers, enterprises, and newcomers.

You do not need to be an expert in Web3 yet, but you should have a strong interest in this technology as well as an enthusiasm to learn quickly. This role provides hands-on experience supporting growth programs for both emerging and established Web3 companies.

Responsibilities

Assist in executing and maintaining demand generation programs across global client accounts.
Support managers in optimizing acquisition funnels and lead nurturing processes through paid social, paid search, content sponsorships, and other growth channels.
Assist with planning and coordinating growth campaigns that align with client OKRs.
Provide regular updates on progress, performance, and blockers to managers and client leads.
Work closely with other marketing team members, such as content, PR, and strategy, to ensure integrated execution.
Help monitor, track, and analyze growth performance using analytics tools, and support the team in applying insights to future strategies.
Stay informed on major Web3 trends, tools, and product updates across the ecosystem.
Keep up with best-in-class growth tactics across tech and consumer product teams.
Support the creation of KPI tracking and reporting for client programs.
Collaborate with the client services team and Director of Growth to help build and refine scalable growth workflows and processes.

Requirements

1–3 years of experience in growth marketing, digital marketing, social media, or marketing analytics, ideally at a tech company or agency.
Exposure to or experience supporting growth or performance campaigns across multiple channels.
Strong analytical skills and comfort working with data to identify patterns and insights.
Ability to quickly understand new concepts, products, and client needs.
Interest in blockchain/Web3, fintech, or emerging technology, with willingness to learn.
Comfortable working in a fast-paced, project-driven environment.
Experience with growth and analytics tools is a plus, such as: Google Analytics, Google Tag Manager, Google Ads, Facebook Ads Manager, Twitter Ads, SEMRush, Ahrefs, Hubspot, Mailchimp, Asana.
Strong organizational skills and ability to support multiple clients or projects at once.
Experience working with distributed or global teams is a plus.
Agency experience working across multiple accounts is a plus but not required.