Senior Data Engineer

We're looking for a SQL-first, performance-driven Data Engineer to join our growing tech team in Mumbai. You’ll own the design, tuning, and scaling of OLTP/OLAP systems—driving high availability, reliability, and data integrity across our platforms.

What You'll Do:

• Design, implement, and maintain database schemas for OLTP and OLAP systems
• Write and optimize complex SQL queries
• Advanced joins and aggregations
• Perform query performance tuning using EXPLAIN plans, indexing, and execution profiling
• Develop and maintain stored procedures, triggers, constraints, and data validation rules
• Configure and tune database systems for: Memory and storage engine optimization, Connection pooling, Query caching
• Monitor database health and performance: Disk I/O, memory usage, query locks, and contention analysis
• Manage and maintain relational databases: MySQL/MariaDB, PostgreSQL, and MongoDB (self-hosted and cloud-native)
• Administer cloud database services: Amazon RDS, Aurora, and MongoDB on EC2
• Set up and manage replication (master-slave, multi-region) and clustering (e.g., MySQL Group Replication)
• Implement failover strategies and ensure high availability
• Enforce data governance practices: Schema versioning, Change management, Data retention, Auditing and access logging
• Collaborate with engineering, DevOps, and security teams to support application performance and scalability
• Prioritize uptime, recoverability, and data consistency in all operations
• Embrace SQL-first and performance-oriented thinking in data layer design
• Proactively identify and resolve data integrity issues, including deduplication and constraint management

Optional but Valuable:

• Experience with Infrastructure as Code (IaC) tools (e.g., Terraform for RDS provisioning)
• Familiarity with CI/CD pipelines for databases (e.g., Flyway, Liquibase, Alembic)
• Exposure to NoSQL databases such as Cassandra
• Automation of DB setup and deployments via scripting

Mindset & Soft Skills:

• Reliability-focused: Values stability, backup, and disaster recovery
• Change-aware: Carefully tests and stages database changes
• Detail-oriented: Identifies subtle performance issues and access patterns
• Collaborative: Works closely with cross-functional teams and communicates clearly
• SQL-first problem solver: Leverages the power of relational databases for logic and transformation
• Performance-oriented: Balances clean design with high performance
• Integrity-conscious: Maintains strict data quality, validation, and compliance standards

What We’re Looking For:

• 3–7 years of experience as a Database Engineer or in a similar role
• Strongexperience with database management systems and command over SQL
• Experience with cloud-native and self-hosted database architectures
• Bachelor's or Master's degree in Computer Science or a related field (preferred)

About Kissht:

Kissht, a Great Place to Work® certified organization, is a consumer-first credit app that is transforming the landscape of consumer credit. As one of the fastest-growing and most respected FinTech companies, Kissht is a pioneer in data and machine-based lending. With over 15 million customers, including 40% from tier 2 cities and beyond, we offer both short and long-term loans for personal consumption, business needs, and recurring expenses.

Founded by Ranvir and Krishnan, alumni of IIT and IIM, and backed by renowned investors like Endiya Partners, the Brunei Investment Authority, and the Singapore Government, Kissht is synonymous with excellence in the industry. Join us and be a part of a dynamic, innovative company that is changing the future of financial technology.