Senior Database Administrator

We are seeking an 8+years experienced Senior DBA with expertise in PostgreSQL (primary stack), Cassandra, and MongoDB to join our team. The ideal candidate comes from a product-based company and has managed high-scale environments (1M+ requests/sec) with a strong focus on performance, scalability, and automation.

Key Responsibilities

• High-Scale DB Management: Experience handling databases at scale (1M+ requests/sec).
• Zero Downtime Migrations: Expertise in Blue-Green Deployments and planning seamless database migrations.
• Database Architecture & CAP Theorem: Deep understanding of CAP theorem to recommend the right database for different use cases.
• Autonomous Scaling: Ability to design auto-scaling strategies for databases while optimizing cost.
• Performance Optimization: Proactively identify and resolve slow queries in staging before they impact production.
• Database Automation: Implement automated workflows for updates and deletions, while ensuring proper approval mechanisms.
• IAM & Access Management: Transition database access from traditional access keys to role-based authentication for enhanced security.
• Instrumentation across various open source and paid tools to get the required metrics 

Required Skills & Experience

• From product based companies 
• Proven experience in PostgreSQL (main stack), Cassandra, and MongoDB.
• Strong background in high-traffic, large-scale environments.
• Hands-on experience with performance tuning, query optimization, and indexing strategies.
• Expertise in database security, IAM roles, and access control.
• Familiarity with CI/CD for database deployments and automation tools.
• Ability to collaborate with developers and DevOps teams for efficient database operations.

Soft Skills

• Strong problem-solving and analytical abilities
• Excellent communication skills, both written and verbal
• Ability to work effectively under pressure and manage multiple priorities
• Strong documentation skills and attention to detail
• Team player with the ability to work independently when needed
• Experience mentoring junior team members

Education

• Bachelor's degree in Computer Science, Information Technology, or related field
• Master's degree preferred but not required if compensated by equivalent experience

Work Environment

• Full-time position
• Hybrid work environment with some on-site presence required
• Participation in on-call rotation
• May require occasional weekend work for major deployments or upgrades