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Senior Database Administrator

Keypress IT Services
Surat, Gujarat

Quick apply

Job details

Full-time | Contractual / Temporary
Up to ₹42,000 a month
4 hours ago

Benefits

Flexible schedule

Qualifications

Data migration
.NET Core
C#
Microsoft SQL Server
.NET
Databases
SQL
AWS
PostgreSQL
Linux
Entity Framework
T-SQL

Full job description

Job Title: Senior DBA + .NET Developer (MSSQL to PostgreSQL Migration)

Experience Required:

4–5 years (hands-on with .NET, MSSQL, PostgreSQL)

Role Overview:

We are looking for a hands-on DBA + Senior .NET Developer to lead and execute a full database migration from MSSQL to PostgreSQL for an existing live application.
The application layer is already developed. Your primary responsibility is to migrate, optimize, and stabilize the database layer, along with required changes in the .NET application, ensuring a seamless transition with strong performance and reliability.
You will own the migration outcome end-to-end.

Working Model:

Full-time (approx. 4–5 months, extendable based on performance)
Flexible working hours
Mandatory availability during critical migration and production issues

Key Responsibilities:

Database Migration:

Lead end-to-end migration from MSSQL to PostgreSQL
Convert schema, tables, constraints, indexes
Rewrite stored procedures, functions, triggers (T-SQL → PL/pgSQL)
Ensure data integrity, validation, and reconciliation
Execute large-scale data migration with minimal downtime

Database Optimization:

Optimize queries specifically for PostgreSQL
Redesign indexing strategies based on workload
Analyze execution plans and eliminate bottlenecks
Ensure efficient handling of high-volume transactions

.NET Application Changes:

Modify .NET codebase for PostgreSQL compatibility
Replace MSSQL-specific queries and ORM dependencies
Ensure proper transaction handling and DB connectivity
Identify and resolve performance issues at application level

Performance & Stability:

Maintain fast response time (target: 10–20 ms where applicable)
Identify and fix slow queries and heavy operations
Ensure system stability under production load

Maintenance & Monitoring:

Implement PostgreSQL monitoring and alerting
Perform routine maintenance (VACUUM, ANALYZE, indexing)
Troubleshoot and resolve production issues quickly

Technical Skills Required:

Strong hands-on experience in MSSQL and PostgreSQL
Proven experience in database migration projects
Strong knowledge of .NET (C# / .NET Core)
Deep expertise in:
Query optimization
Execution plan analysis
Index design and tuning
Experience with:
Stored procedure conversion (T-SQL → PL/pgSQL)
Data migration strategies and tools
Solid understanding of:
Transactions, locking, concurrency
High-load and high-throughput systems

Preferred Qualifications:

Experience with large-scale databases
Experience in live production migration with minimal downtime
Familiarity with AWS / Linux environments
Experience with ORM tools (Entity Framework / Dapper)

Engagement & Payment Terms:

Full-time engagement
Monthly payout cycle
Long-term opportunity based on performance

Outcome Expectations:

Accurate and complete migration from MSSQL to PostgreSQL
Well-optimized PostgreSQL database structure
Stable and performant system post-migration
Minimal downtime during transition
Clean, maintainable, and scalable database + application code

Key Focus Area:

The application flow is already defined. The focus is:

Correct and safe migration
Performance optimization
Stability under high load
Clean integration between .NET and PostgreSQL

Pay: Up to ₹42,000.00 per month

Benefits:

Flexible schedule

Work Location: In person

Quick apply

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