SQL DB Engineer

Zensar; India; On-site; INR 1,800,000 - 3,000,000; Full time

Job summary

Zensar is seeking a senior SQL Server engineer to design, tune, and maintain enterprise-grade databases. You will optimize T-SQL, analyze execution plans, and refactor heavy workloads into set-based designs while ensuring data integrity.

The role involves collaborating on upgrades, HA/DR planning, and cloud modernization with Azure SQL services. We expect strong incident-management skills, mentoring, and the ability to drive best practices in data architecture across complex transactional

Qualifications

• 7+ years of hands-on SQL Server database engineering or development experience in enterprise environments.
• Advanced T-SQL, stored procedure, function, indexing, data-modeling, and query-optimization skills.
• Deep knowledge of SQL Server execution plans, Query Store, statistics, locking/blocking, and tempdb.
• Experience tuning high-volume transactional and batch-processing workloads with measurable before-and-after validation.
• Experience with SQL Server upgrades, configuration, performance testing, and production troubleshooting.
• Working knowledge of high availability, disaster recovery, SQL Agent, replication, backup/restore, maintenance, and monitoring.
• Strong analytical, documentation, collaboration, and incident-management skills.

Responsibilities

• Design, develop, review, and optimize T-SQL objects and data-access patterns.
• Analyze execution plans, Query Store data, waits, blocking, memory grants, and CPU/I-O behavior to resolve issues.
• Refactor heavy row-by-row and scalar functions into set-based designs with inline table-valued functions.
• Tune long-running workloads and ensure data integrity and output equivalence.
• Design and validate database structures, keys, identity strategies, data models, and replication patterns.
• Support upgrades and configuration changes through performance testing and rollback planning.
• Engineer and support HA, DR, transactional replication, monitoring, maintenance, and archival.
• Troubleshoot production incidents with cross-functional teams and translate findings into durable actions.
• Contribute to cloud modernization involving Azure SQL services and data pipelines.

Skills

Advanced T-SQL

Query optimization

Execution plans

Incident management

Mentoring

Code reviews

Batch processing tuning

High availability

Tools

Azure SQL Managed Instance

Azure SQL Database

SQL Server on Azure VM

Azure Data Factory

PowerShell

Job description

Key Responsibilities

• Design, develop, review, and optimize complex T-SQL, stored procedures, functions, views, tables, indexes, and data-access patterns.
• Analyze execution plans, Query Store data, waits, blocking, memory grants, parallelism, CPU, I/O, tempdb usage, and transaction-log behavior to isolate and resolve performance issues.
• Refactor row-by-row and scalar-function-heavy processing into efficient set-based designs, including appropriate use of inline table-valued functions, temporary staging, indexing, and early filtering.
• Tune long-running batch, snapshot, compliance, reporting, and data-export workloads while preserving data integrity and output equivalence.
• Design and validate database structures, keys, identity strategies, data models, and replication patterns for large, tightly coupled transactional workloads.
• Support SQL Server upgrades and configuration changes through representative performance testing, execution-plan comparison, regression validation, and documented rollback or fix-forward plans.
• Engineer and support high availability, disaster recovery, transactional replication, monitoring, maintenance, archival, purge, and capacity-management practices.
• Troubleshoot production incidents with application, infrastructure, SRE, QA, and vendor teams; preserve evidence and translate findings into durable corrective actions.
• Contribute to cloud and platform modernization involving Azure SQL Managed Instance, Azure SQL, data pipelines, and workload offload from monolithic SQL platforms.
• Provide technical leadership through design reviews, code reviews, standards, documentation, mentoring, and knowledge transfer.

RequiredRequired

Required Skills

• 7+ years of hands-on SQL Server database engineering or development experience in enterprise environments
• Advanced T-SQL, stored procedure, function, indexing, data-modeling, and query-optimization skills
• Deep knowledge of SQL Server execution plans, Query Store, cardinality estimation, statistics, locking/blocking, waits, parallelism, memory grants, and tempdb.
• Experience tuning high-volume transactional and batch-processing workloads with measurable before-and-after validation.
• Experience with SQL Server upgrades, configuration assessment, performance testing, and production troubleshooting.
• Working knowledge of high availability, disaster recovery, SQL Agent, replication, backup/restore, maintenance, and operational monitoring.
• Strong analytical, documentation, collaboration, and incident-management skills

Nice To Have

• Azure SQL Managed Instance, Azure SQL Database, or SQL Server on Azure virtual machines.
• Azure Data Factory, Microsoft Fabric pipelines, Snowflake, or reporting/data-platform modernization.
• PowerShell or other automation for database deployment, validation, monitoring, or maintenance.
• Experience with financial-services transaction, compliance, reporting, or data-feed workloads.

At Zensar, we’re
“experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose:
Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is
ONE with Client - a set of four core values that reflect who we are and how we work:
One Zensar, Nurturing, Empowering, and Client Focus.
Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself.
We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status.