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Senior Full Stack Engineer

Arc.dev

Salary not specified
Sep 2, 2025
San Francisco, CA, US
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Architect, build, and scale the core of the world's first fully autonomous social media growth and monetization platform

Requirements

  • JavaScript / TypeScript
  • Next.js (App Router)
  • Supabase (Postgres, Auth, Storage)
  • Tailwind CSS
  • Stripe and other third-party API integrations (Meta Graph API, Airtable, Make.com)
  • Experience designing scalable SaaS architectures and infrastructure
  • Ability to operate as the sole technical authority in the early stage

Responsibilities

  • Architect and build the core web and mobile platform using Next.js, Supabase, Tailwind, Capacitor, Stripe, and AI agent integrations
  • Design modular systems to support key features such as: Creator marketplaces, Campaign automation, Content management, Escrow payments, AI-driven decision-making
  • Collaborate closely with the CEO and AI Research to implement multi-agent orchestration across core functions
  • Establish best practices for security, scalability, and maintainability from day one
  • Own the full development lifecycle: concept → MVP → simulation → global launch
  • Lay the groundwork for future technical hires and engineering culture

Other

  • Freelance role to start, with the potential to transition into a full-time founding engineer position (including significant equity) on-site
  • Work in a fast-paced, no-bureaucracy environment with full creative freedom and decision-making power
  • Founder mindset: you think long-term, act fast, and build with leverage
  • Demonstrated track record of shipping quickly in startup or zero-to-one environments
  • Passion for social media, digital assets, and the evolving creator landscape