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Experience: 3+ yrs

Location: Remote (India), India

Job Type: Full-time

We are looking for a highly hands-on Lead Full-Stack Product Engineer to take end-to-end technical ownership of a production-grade SaaS platform. This role is suited for a senior engineer who enjoys building products, solving complex technical problems, and working across the entire technology stack rather than focusing on a narrow engineering function.

You will be responsible for owning the product across frontend, backend, databases, APIs, AI workflows, third-party integrations, cloud infrastructure, CI/CD, security, observability, analytics, billing, and production operations. The role requires solid technical ownership and the ability to connect engineering decisions directly to customer acquisition, activation, conversion, retention, and revenue.

Requirements

KEY RESPONSIBILITIES
- Take end-to-end technical ownership of the production SaaS platform, including codebase, infrastructure,



integrations, data, and operational systems.
- Audit existing repositories, dependencies, architecture, infrastructure, and deployment processes and establish clear technical documentation and runbooks.
- Design, develop, maintain, and enhance full-stack web applications and backend services.
- Build scalable frontend experiences, backend APIs, account administration, onboarding, reporting, and self-service product workflows.
- Maintain secure multi-tenant SaaS architecture, including authentication, authorization, RBAC, and tenant isolation.
- Develop and maintain REST APIs, OAuth 2.0 integrations, webhooks, third-party SDKs, queues, workers, schedulers, retries, and idempotent workflows.
- Build and maintain integrations with Google Business Profile, Facebook, Instagram, TikTok, and other relevant social or business platforms.
- Manage OAuth permissions, API scopes, webhooks, content publishing, sch

📌 Senior Product Engineer (India)
🏢 Weekday AI
📍 India