Senior Fullstack Engineer - Core & Ad Platforms

Finalroundai

Bangalore, India Remote permanent

Posted: May 13, 2026

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Quick Summary

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. Own and maintain high-quality codebase and ensure smooth integration of multiple systems.

Required Skills

TypeScript React Next.js Node.js Postgres Supabase Firebase Docker AWS CI-CD Observability Meta Marketing API

Job Description

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.

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