Serotonin

Serotonin

AI Infra Engineer

New York

Sponsorship not specified$90k-$150kDetected 26 days ago
PythonNext.jsFull-Stack DevelopmentGitSQLVector DatabasesGraphQLRESTData EngineeringLLMsRAGAgentic AILangGraphAI OrchestrationGrowth MarketingResearch

About the role

  • This role sits at the intersection of competitive intelligence, data engineering, and agentic AI.
  • You'll pull signals from social platforms, on-chain activity, and paid media, and turn them into structured intelligence that shapes how we run accounts and campaigns, both internally and for clients.
  • This is a systems role, not a workflow automation role.

Responsibilities

  • Build and maintain agentic systems that continuously collect, process, and surface signals from social platforms, on-chain data, and ads ecosystems. Turn raw, multi-source data into structured intelligence that informs real account and campaign decisions.
  • Design and maintain the pipelines that power those systems: ingesting from multiple external APIs, enriching and modeling data, and building semantic layers that both humans and AI agents can actually use.
  • Build multi-step AI agents that automate research, synthesis, monitoring, and reporting. Not single-call LLM wrappers, but orchestrated systems with memory, defined tools, and structured output schemas that teams can depend on.
  • Build full-stack applications and dashboards that make intelligence accessible across client accounts. Live tools, not decks.
  • Map how work actually moves, identify where signal gaps create friction, and build systems that solve for multiple teams from a single architecture.
  • Stay ahead of the AI tooling landscape. Know when a no-code connector is the right call and when you need to build. Define how impact gets measured, and build the reporting to prove it.
  • Build and maintain agentic systems that continuously collect, process, and surface signals from social platforms, on-chain data, and ads ecosystems.
  • REST and GraphQL API experience building integrations, not configuring connectors
  • We're building an intelligence layer at Serotonin, and we need someone to own it end to end.
  • You'll design and maintain the data pipelines, agentic workflows, and full-stack applications that make our intelligence capabilities real and repeatable.

Requirements

  • Experience ingesting and fusing data from multiple external sources: social APIs (X, LinkedIn), ads APIs (Meta, Google), or similar multi-source environments
  • Familiarity with wallet activity, token flows, and what on-chain behavior signals about an entity or protocol
  • Not required, but you should be the kind of person who picks up a new data domain fast

Nice to have

  • Ability to translate raw signal into structured, actionable output for non-technical stakeholders
  • You reach for them when they're genuinely the fastest path to a reliable outcome.
  • PR, content, growth, social.
  • Crypto experience is a meaningful plus.
  • This Role Is Right For You If...
  • You care more about making three teams faster than shipping something impressive that one person uses, and your GitHub actually reflects what you can do without needing to be asked for a portfolio.
  • You've probably come up through a founding engineer role, an early-stage startup, or as an independent builder, ideally somewhere in data, intelligence, or crypto.
  • You ship in days, you're not precious about being wrong early, and you know the difference between using AI as a multiplier versus using it to paper over a weak foundation.

Skills

  • embeddings, retrieval pipelines, semantic search
  • Intelligence and Signal Layer

Compensation

  • $90k-$150k
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This listing is sourced directly from Serotonin's careers page and normalized into a canonical job model.