Senior Backend Engineer - Database Design & Cloud Infrastructure

Job Description: Senior Backend Engineer - Database Design & Cloud Infrastructure

Experience: 6+ Years Work Location : Chennai

Work Mode : Work From Office Role Overview We are looking for a

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 application. This role will primarily focus on

database architecture, schema design, query optimization, migrations, and RDS infrastructure , along with supporting backend development in

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 setups.

• 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

• 6+ years of backend development with

Node.js and TypeScript

• Experience with

GraphQL (AppSync or Apollo Server)

• Experience with

AWS CDK

• Familiarity with

DBeaver or similar database 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

• Experience with

read replicas and query scaling

• Exposure to

Postman or similar API testing tools

Key Focus This role is primarily evaluated on

database design, SQL expertise, and AWS RDS management . Skills in

GraphQL, Lambda, and AWS CDK are important supporting capabilities.