Job Description
Junior Full Stack SaaS Engineer About the Role We are looking for a highly motivated Junior Full Stack SaaS Engineer to architect, build, and scale contemporary SaaS platforms from the ground up. This role is for someone who has hands-on experience building complete SaaS products—not just isolated frontend or backend features. The ideal candidate understands how to design and ship scalable, production-grade applications across the full stack, including: - frontend systems, - backend APIs, - databases, - authentication, - billing, - infrastructure, - deployment pipelines, - and multi-tenant SaaS architecture. You will work closely with product, design, AI, and infrastructure teams to build reliable and scalable software products used in production environments. Responsibilities Full Stack Product Development - Design and develop end-to-end SaaS applications from scratch - Build responsive and scalable frontend applications - Develop secure backend APIs and microservices - Implement authentication, authorization, RBAC, and user management systems - Build billing,



subscription, and usage-based systems - Develop dashboards, admin panels, and workflow management systems Backend & API Engineering - Design scalable backend architecture and APIs - Build high-performance REST and/or GraphQL services - Implement asynchronous systems, queues, caching, and background jobs - Optimize application performance, reliability, and scalability - Integrate third-party APIs and services Database Engineering - Design and manage scalable database systems - Work extensively with: - PostgreSQL - MongoDB - MySQL - SQL-based systems - Design schemas, indexing strategies, query optimization, and data models - Build systems for high availability, backups, migrations, and scaling Infrastructure & Deployment - Deploy and manage applications across cloud environments - Work with: - Docker - CI/CD pipelines - cloud infrastructure - containerized deployments - Build scalable production envi

📌 Junior Full Stack Engineer (Kolkata)
🏢 Qubrid AI
📍 Kolkata