Lead – Database Administrator (DBA)

Delta6Labs; Dadri; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Delta6Labs in Noida, India is seeking a Lead DBA to own and optimize mission-critical databases across PostgreSQL, MySQL/MS SQL, and MongoDB. This role requires deep HA, security, disaster recovery, and performance engineering capabilities in a 24/7 production environment.

The ideal candidate will drive architecture, establish best practices, mentor DBAs, implement automation with IaC tools like Terraform/Ansible, and collaborate with engineering leadership on capacity planning.

Qualifications

• 15+ years of Database Administration experience.
• Expert hands-on knowledge of PostgreSQL, MySQL/MS SQL Server.
• Strong MongoDB NoSQL data modeling and replication/sharding.
• Cloud platforms AWS RDS/Aurora and Azure SQL Database experience.
• HA and replication with failover tooling (Patroni).
• Security mechanisms: roles, encryption, auditing.
• Performance tuning, indexing, monitoring/observability tooling.
• Automation via Python/Bash, Terraform or Ansible.

Responsibilities

• Lead a team of DBAs; establish standards, governance for databases.
• Drive end-to-end database architecture and capacity planning with engineering leadership.
• Design and administer large-scale, high-volume transactional databases.
• Oversee cloud DB services for cost management and optimization.
• Maintain 24/7 HA configs, read replicas and zero-downtime migrations.
• Monitor performance; plan capacity; optimize queries and indexing.
• Conduct security audits and ensure compliance (ISO, SOC, PCI-DSS).
• Develop DR/BC planning; define RPO/RTO and test plans.
• Create automation scripts and CI/CD pipelines for DB changes.

Skills

PostgreSQL

MySQL/MS SQL

MongoDB

Cloud DBs

HA/Replication

Performance tuning

Monitoring

Scripting (Python/Bash)

Terraform/Ansible

CI/CD for DBs (Flyway/Liquibase)

Kafka/CDC

Tools

Prometheus/Grafana

pg_stat_statements

Percona PMM

Datadog

Job description

Lead – Database Administrator (DBA)

Open

Summary

We are looking for a Lead Database Administrator (DBA) to own/manage/optimise our mission‑critical database systems. The perfect candidate should have expertise in PostgreSQL, MySQL/MS SQL, and MongoDB, and have immense knowledge in RDBMS, high availability (HA), database security, performance engineering, disaster recovery, etc.

Database Leadership & Architecture

• Lead a team of DBAs and database engineers; establish standards, best practices, and governance policies for databases.
• Drive the database architecture and roadmap from end to end; interact with engineering leadership for architectural and capacity‑planning decisions.
• Designed, developed, and administered large-scale, high-volume transaction systems on PostgreSQL, MySQL/MS SQL, and MongoDB databases.
• Inspecting and taking care of cloud database services (AWS RDS/Aurora, Azure SQL) for cost handling of the DB.

High Availability & Scalability

• Design and maintain high‑availability configurations: streaming replication, failover automation (ex: Patroni), read replicas, connection pool management (pgBouncer), multi‑region adapters
• Big Data horizontal scaling with partition/sharding strategies
• Zero/near zero downtime during maintenance, upgrades, and schema migrations in a 24×7 environment.

Performance Optimization & Monitoring

• Monitor database status and performance, and analyze capacity planning
• Low‑latency huge workload queries, indexing & optimization against the database.
• Identify and adopt monitoring/observability tools (Prometheus/Grafana, pg_stat_statements, Percona PMM, Datadog) for preventive issue identification.

Security & Compliance

• Database Security Best Practices for each of the engines — Roles, Privileges, encryption at Rest / in transit, Access Control.
• Conduct security audits and vulnerability assessments on a regular basis to protect your sensitive customer and financial data.
• Compliance and audit (ISO 27001, SOC 2, PCI‑DSS, data‑protection regulation), with support for audit logging and data‑retention policies.

Disaster Recovery & Backup

• Base the RPO/RTO target in planning backup and recovery strategies for point‑in‑time recovery.
• Assessing the business continuity — DR plans should be documented and tested;

Incident & Operations Management

• Managing database incident response internally — owning P1 incidents and root‑cause analyses and postmortems.
• Implemented and maintained on‑call rotation for 24/7 production environment services
• Create scripts (Python, Bash), IaC Terraform, Ansible to automate redundant database tasks.

Database Development & Support

• Contribute to schema design, indexing tactics, and safe‑to‑production schema migration practices (Flyway/Liquibase, CI/CD for database changes).
• Assist Development with query performance tuning and troubleshooting of a database.
• Schedule and conduct database upgrades, patches, and maintenance with minimal interruption

Requirements

• 15+ years of Database Administration experience (3–5 years managing DBA/database engineering teams or as the most senior‑level DBA).
• Expert hands‑on knowledge of PostgreSQL (query writing, performance tuning, internals) and a strong understanding of MySQL and/or MS SQL Server.
• Strong knowledge of MongoDB – NoSQL data modeling, replica sets/sharding
• Deep knowledge and experience with cloud database platforms (AWS RDS/Aurora, Azure SQL Database) and Cloud infrastructure (AWS/Azure)
• Practical knowledge of HA and replication: streaming replication, failover tooling (Patroni or equivalent), connection pooling (PgBouncer), read replicas.
• Good understanding of the security mechanisms provided at the database layer: roles, privileges, encryption, auditing.
• Hands‑on experience with performance tuning, indexing strategies, and monitoring/observability tooling (Prometheus/Grafana, pg_stat_statements, Percona PMM, Datadog or similar).
• Specialized in backup, point‑in‑time recovery, and disaster recovery planning with clear RPO/RTO definition.
• Practical experience handling large‑scale, high‑throughput, low‑latency transactional databases on production 24/7.
• Working experience with cache/in‑memory data store (ex: Redis) used to serve high‑traffic applications.
• Scripting experience in (Python, Bash) and automation; Terraform or Ansible preferred.
• Schema migration and database CI/CD tooling experience (Flyway, Liquibase or similar) is a plus.
• Knowledge of streaming/CDC tools (Kafka, Debezium) will be preferred.
• Time‑series databases (TimescaleDB, ClickHouse, InfluxDB) knowledge would be a plus!
• Excellent communication and stakeholder‑management skills; mentoring/guiding engineers and establishing guidelines in databases across the teams.

Preferred (Not Mandatory)

• Domain knowledge in one or more of the following processes: fintech, banking, payments, trading platforms, or crypto exchanges. This will be a plus point for the candidates.
• Experience in supporting regulatory audits and experience in a compliance‑oriented environment.

Job Summary

Location Noida, India

Job Type Full‑time

Date Posted July 29, 2026

Experience 15+ Years

Working Hours 9:00 AM - 6:00 PM