Database Administrator Job at Wissen (Bangalore South)

Database Administrator

Wissen

Location:
India , Bangalore South

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Not provided

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Job Description:

Wissen Technology is hiring for Database Administrator. We are seeking an experienced PostgreSQL Database Administrator (DBA) for a part‑time/contract engagement to support a cloud‑based IoT platform. The role involves designing scalable database architectures, optimizing high‑volume workloads, ensuring reliability, and supporting production operations for microservices‑based, multi‑tenant applications. The ideal candidate has hands‑on expertise with PostgreSQL, strong performance tuning skills, and experience working in cloud environments (AWS/Azure).

Job Responsibility:

Design and optimize PostgreSQL schemas for IoT telemetry, BOS transactional data, and multi-tenant applications
Define and implement data partitioning strategies for time-series and high-volume data
Support data modeling aligned with microservices architecture
Analyze and tune slow queries using indexing, query optimization, and PostgreSQL performance tools
Optimize database for high write throughput in IoT ingestion environments
Improve latency, throughput, and handle large-scale datasets efficiently
Define strategies for archiving and data retention
Support database deployment on AWS/Azure
Configure replication, high availability (HA), failover strategies, and scaling solutions
Implement and manage backup and recovery strategies
Ensure database security, including roles, access controls, and encryption
Monitor database health and troubleshoot production issues
Perform root cause analysis during incident resolution
Work closely with Cloud Architects, Microservices teams, and DevOps engineers
Guide developers on best practices for schema design and query development
Review database changes and ensure compliance with performance and security standards.

Requirements:

6–10 years of hands-on experience in PostgreSQL database administration
Experience supporting production-grade systems in complex, high-volume environments
Strong communication and active listening skills for stakeholder interaction
Advanced PostgreSQL expertise including: Indexing, partitioning, vacuuming
Query tuning using EXPLAIN / ANALYZE
Experience with: High-volume transactional systems
Knowledge of: Replication (streaming/logical)
Backup & recovery tools (pg_dump, WAL, etc.)
Familiarity with cloud-managed DB services such as AWS RDS, Aurora, Azure Database for PostgreSQL.

Nice to have:

Experience with multi-tenant SaaS architecture
Exposure to microservices-based systems and distributed architectures
Knowledge of monitoring tools such as Prometheus, Grafana, pgAdmin, etc.
Basic scripting in Bash or Python for automation
Experience with performance benchmarking and database observability tools.

Additional Information:

Job Posted:
May 03, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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