Senior Fullstack Engineer - Core & Ad Platforms
TLDR
Own a blended fullstack scope across core product engineering and ad-platform integrations, building features, backend logic, and connector work for Meta and TikTok.
Responsibilities:
Own a blended scope across core HellYeah product engineering and ad-platform integrations. Build and maintain fullstack product features, backend business logic, and frontend flows while also driving Meta / TikTok connector work, server-side postbacks, and ad-account provisioning automation. Write technical designs, lead discussions, and execute independently across both product and integration surfaces.
Must Have:
1. Strong TypeScript production experience building fullstack systems.
2. Experience with React / Next.js on the frontend and Node.js services on the backend.
3. Experience integrating complex third-party APIs, including OAuth, webhooks, rate limiting, and event-driven workflows.
4. Experience with Postgres / Supabase / Firebase, Docker, and production-quality engineering practices.
5. Ability to own both core product engineering and ad-platform integration work in a fast-moving environment.
Nice to have:
1. Meta Marketing API or TikTok Marketing API experience.
2. Ad-tech / growth-tech or attribution background.
3. Conversions API / server-side postback experience.
4. Python or Go.
5. Kubernetes / AWS / CI-CD / observability.
6. AI-first development workflow and ability to ship quickly with modern coding tools.
Hellyeah AI is an AI-powered performance marketing company that transforms paid acquisition into an automatic, measurable process for businesses across industries like mobile apps, gaming, fintech, and e-commerce. Its autonomous ad optimization agent redefines the media buying landscape, making sophisticated marketing accessible for any company.