ESaaS - DBA - Sys Admin

The SQL Server Database Administrator (DBA) is responsible for the design, implementation, maintenance, and optimization of Microsoft SQL Server databases. The role involves ensuring the availability, security, performance, and integrity of databases, as well as collaborating with development teams and other IT professionals to deliver efficient database solutions. Zensar Technologies seeks an experienced MS SQL DBA Administrator to manage and optimize SQL Server environments as well as Azur SQL environment. Should have MSSQL DBA experience managing On-prem and cloud Azure MI PAAS, IAAS SQL server databases Experience supporting database performance, evaluating and resolving processing and programming problems Analyze, solve, and correct issues in real time Provide suggestions for solutions Good experience on High Availability (HA) and Disaster Recovery (DR) options for SQL Server Refine and automate regular processes, track issues, and document changes Assist developers with query tuning and schema refinement Provide 24x7 support for critical production systems Microsoft Azure cloud day to day administration. Upgrade and Migration of databases from SQL Server 2008/2008r2/2012/2014/2016/2019/2022. Experience in working with programmers and assisting in optimizing databases for operational and performance efficiency Installation and configuration of SQL server 2016/2017/2019 in cluster and standalone environment. Support business applications, ensuring system availability, security, performance and reliability. ETL application support, SSIS package administration/deployment/troubleshooting SQL server pathing on single instance and cluster environments. Expert level skills in Backup and restore database operations and executing SSIS packages Monitoring SQL server performance using SQL Profiler, INDEX tuning wizard and performance monitor. Replication, Always on availability groups and clustering Experience working in Active/Passive. Active/active cluster environment. Implementation of SQL Server security and Object permissions like maintaining creation of users (Windows and SQL), configuring permissions, and assigning roles to users. Migrate on -prem SQL server database to Microsoft Azure hosted DB’s. Managed instances, High availability, always on, Log shipping, patching, Troubleshooting and optimization. Link server create from On-prem to Azure cloud. Configure geo replications for High availability. Design databases to support business applications, ensuring system scalability, security, performance, and reliability Plan and provide guidance to administrator regarding frequency of necessary upgrades to enhance database performance Monitor and interpret systems resource consumption trends to ensure production systems meet availability requirements and hardware enhancements are scheduled appropriately Create and enforce database development standards, preventing and correcting any deviations from database development standards Excellent problem solving, time management, communications, and presentation skills Excellent consulting, analytical and communications skills Strong communication and organizing skills, and proven ability to interact and influence other technical leaders/architects in a collaborative fashion Experience in software development with demonstrated experience in scalable data architectures and design Problem solving / analytical skills, tools, and techniques Experience working in a Cloud based environment. Specifically, with Azure Experience in monitoring and tuning a database to provide a high availability service Experience working in Windows Server environments including Windows 2016/2019/2022 Strong Windows systems, clustering and scripting proficiency Good understanding of Distributed Systems and Parallel Processing architecture Experience with Database Security solutions and implementations (Data Masking, Database activity monitoring, Data Encryption) Experience delivering data warehouse/marts from specification through end-user acceptance testing Experience with database replication, hot stand-by, clustering, and table partitioning on -prem and cloud PostgreSQL Administration Administer PostgreSQL databases in on-premises Linux/Windows environments and Microsoft Azure, including Azure Database for PostgreSQL - Flexible Server and PostgreSQL hosted on Azure VMs. · Install, configure, patch, and upgrade PostgreSQL instances; perform minor-version maintenance and plan major-version upgrades using suitable in-place or logical migration methods. · Manage databases, schemas, roles, privileges, authentication, pg_hba.conf, SSL/TLS, parameter configuration, extensions, tablespaces, and connection settings. · Configure automated backups, backup-retention periods, manual snapshots, point-in-time recovery, geo-restore, cross-region snapshot copies, and backup-recovery validation. · Configure and support physical streaming replication, read replicas, synchronous/asynchronous replication, replication slots, WAL archiving, and failover solutions such as Patroni, repmgr, or approved enterprise tooling. · 5+ years of hands-on database administration experience, with strong production support experience in Microsoft SQL Server and PostgreSQL. · Administer and support managed PostgreSQL database services across Azure Database for PostgreSQL Flexible Server, Amazon RDS for PostgreSQL, and Amazon Aurora PostgreSQL-Compatible Edition in development, testing, staging, disaster recovery, and production environments. · Provision and configure PostgreSQL managed instances and clusters, including compute tiers, instance classes, storage, IOPS, server parameters, parameter groups, extensions, maintenance windows, and database configurations. · Plan and execute PostgreSQL migrations from on-premises environments or other cloud platforms to Azure Database for PostgreSQL, Amazon RDS for PostgreSQL, or Amazon Aurora PostgreSQL. · Support migrations using native PostgreSQL tools and approved services such as Azure Database Migration Service and AWS Database Migration Service, including assessment, replication, cutover, rollback, and post-migration validation. · Plan and perform PostgreSQL minor-version maintenance and major-version upgrades, including compatibility assessment, extension validation, application testing, rollback planning, and post-upgrade verification. · Support Aurora-specific change and upgrade activities using cloning, Blue/Green Deployments, controlled failover, or other approved deployment methods. · Configure and manage Azure read replicas, Amazon RDS read replicas, Aurora Replicas, reader endpoints, custom endpoints, replica auto-scaling, and failover priorities. · Demonstrated experience supporting both on-premises and Microsoft Azure database environments. · Strong knowledge of database architecture, high availability, disaster recovery, backup and recovery, security, performance tuning, and capacity planning. · Experience working in ITIL-aligned incident, problem, change, release, and service-management processes. · Ability to manage priorities during production incidents and communicate clearly with technical teams, leadership, and business stakeholders. · Bachelor’s degree in computer science, Information Technology, Engineering, or equivalent practical experience. · Relevant Microsoft Azure, SQL Server, or PostgreSQL certification is preferred.