Senior Backend Engineer – Database Design & Cloud Infrastructure

Job Title: Senior Backend Engineer Database Design & Cloud Infrastructure Location: Chennai, India Experience Required: 6+ Years Role Overview We are looking for a highly experienced Senior Backend Engineer with strong expertise in relational database design, SQL, and AWS RDS to build and manage the core data layer of our enterprise applications. This role will primarily focus on database architecture, schema design, query optimization, migrations, and AWS RDS infrastructure, while also supporting backend development using Node.js, TypeScript, GraphQL, AWS Lambda, and AWS CDK. Key Responsibilities • Design relational database schemas from scratch, including tables, relationships, constraints, indexes, and normalization. • Write and optimize complex SQL queries, stored procedures, and views. • Manage database migrations, schema versioning, and rollback strategies. • Configure and manage Amazon RDS (PostgreSQL/MySQL), including backups, scaling, and Multi-AZ deployments. • Implement RDS Proxy for connection management in serverless environments. • Develop backend services using Node.js and TypeScript on AWS Lambda. • Build and optimize GraphQL APIs using AWS AppSync. • Define and maintain infrastructure using AWS CDK in TypeScript. • Apply AWS security best practices, including IAM, VPC, and Secrets Manager. Required Skills • 6+ years of experience in SQL and relational database design. • Strong hands-on experience with PostgreSQL and/or MySQL. • Proven experience with AWS RDS administration and optimization. • 6+ years of backend development experience using Node.js and TypeScript. • Experience with GraphQL (AWS AppSync or Apollo Server). • Experience with AWS CDK. • Familiarity with DBeaver or similar database management tools. Preferred Skills • Experience with migration tools such as Flyway, Liquibase, Prisma Migrate, or TypeORM. • Familiarity with RDS Proxy. • Knowledge of data modeling patterns, audit trails, and multi-tenancy architectures. • Experience with read replicas and database query scaling. • Exposure to Postman or similar API testing tools.