Senior Database Administrator

Job Summary We are seeking an experienced Senior Database Administrator to manage and support enterprise database platforms including Oracle, Microsoft SQL Server, PostgreSQL, KDB+ , and modern AI Vector Databases . The candidate will be responsible for database availability, performance, security, automation, disaster recovery, and DevOps integration while supporting business-critical applications, analytics platforms, and AI initiatives. Key Responsibilities Administer, maintain, and optimize Oracle, Microsoft SQL Server, PostgreSQL, and KDB+ databases in Production, DR, UAT, and Development environments. Design and support high availability and disaster recovery solutions using Oracle RAC, Data Guard, SQL Server Always On, PostgreSQL Replication, and KDB+ replication technologies. Perform database installation, configuration, upgrades, patching, migration, backup, recovery, and capacity planning activities. Monitor and troubleshoot database performance issues, identify bottlenecks, and implement tuning recommendations. Develop and maintain automation for database administration tasks using Python, Shell Scripting, PowerShell, Ansible, or similar technologies. Support AI and Data Science platforms by deploying and managing Vector Database technologies such as pgvector, Milvus, Qdrant, Weaviate, OpenSearch Vector Search, or similar platforms. Design and optimize vector indexing, embeddings storage, similarity search, metadata filtering, and Retrieval Augmented Generation (RAG) workloads. Implement and maintain database security controls including access management, encryption, auditing, vulnerability management, and compliance requirements. Build and support CI/CD, Infrastructure-as-Code (IaC), GitOps, and DevOps practices for database deployments and lifecycle management. Develop monitoring, alerting, observability, and operational dashboards to ensure proactive health management of database platforms. Partner with Application, Infrastructure, AI, Cybersecurity, and DevOps teams to deliver scalable and reliable database services. Participate in 24x7 on-call support and incident management activities. Prepare technical documentation, standards, SOPs, and architecture recommendations. Required Qualifications Bachelor’s degree in Computer Science, Information Technology, Engineering, or related discipline. Minimum 8 years of hands-on Database Administration experience. Strong expertise in: Oracle Database (11g/12c/19c/21c), Microsoft SQL Server (2016/2017/2019/2022) PostgreSQL, KDB+ Hands-on experience with: Oracle RAC, ASM, Data Guard, RMAN SQL Server Always On Availability Groups and Clustering PostgreSQL Replication, PITR, WAL Management, PgBouncer, KDB+ Tick Architecture and Real-Time Data Processing Strong knowledge of: Backup and Recovery Database Performance Tuning Query Optimization Capacity Planning Database Security and Auditing High Availability and Disaster Recovery Experience with Linux and Windows Server administration. Strong scripting and automation skills using Python, Shell Scripting, or PowerShell. Experience with Git, CI/CD pipelines, Terraform, Ansible, or equivalent DevOps tools. Strong understanding of networking, storage, virtualization, and infrastructure fundamentals. Preferred Qualifications: Experience with AI/ML, Generative AI, and Retrieval Augmented Generation (RAG) architectures. Hands-on experience with: pgvector, Milvus, Qdrant, TImescale, OpenSearch Vector Search Pinecone or similar Vector Database platforms Experience managing Kubernetes and containerized database platforms. Knowledge of Infrastructure as Code (Terraform) and GitOps practices. Experience supporting enterprise-scale databases exceeding multiple terabytes. Familiarity with cloud and hybrid database environments. Exposure to Data Lake, Data Warehouse, and Real-Time Analytics platforms. Experience in semiconductor, manufacturing, financial, or mission-critical environments.