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I’m building a C# .NET full-stack application and the part slowing me down is database management. The project already has its front-end and API layers in place; what I need now is an experienced SQL Server specialist who can step in, assess the existing schema, and make the data layer rock-solid. You’ll be looking at tables created through Entity Framework migrations, several hand-written stored procedures, and a set of LINQ queries that are starting to show performance issues in production-like loads. I’d like you to refactor or redesign where necessary, tune indexes, and help establish best-practice patterns so the code stays maintainable. If you have a track record of solving similar SQL Server challenges inside .NET environments, let me know how you approached them and what measurable gains you delivered. The more specific your experience, the easier it will be for me to see the fit. I’m ready to share the repo and a sanitized backup as soon as we agree on approach and milestones.
Project ID: 40455902
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62 freelancers are bidding on average ₹1,718 INR/hour for this job

I’m a seasoned SQL Server DBA with 10+ years of experience, specializing in high-availability, performance tuning, and security. I can help you optimize your database operations and ensure your systems run smoothly and efficiently. Why Choose Me: 10+ Years of Experience: Proven track record in managing and optimizing SQL Server environments. Expert in Availability Groups: Ensuring high availability and disaster recovery. Performance Tuning: Enhancing query performance and reducing latency. Robust Security: Implementing best practices to protect your data. I am confident I can deliver the results you need. Let's discuss how I can help you achieve your database management goals. Best regards, Muhammad Awais
₹1,875 INR in 40 days
5.8
5.8

✋ Hi, I have 14+ years of experience with SQL Server, C#, ASP.NET, .NET Core, Entity Framework, stored procedures, and database optimization. I understand the frontend and API layers are already in place, and the focus is on optimizing the SQL Server layer, improving performance, and making the data architecture more maintainable. ✅ Plan for prioritized steps Step 1: Review schema, EF migrations, stored procedures, LINQ queries, execution plans, and identify bottlenecks Step 2: Optimize indexes, refactor queries/SPs, improve EF patterns, and tune database performance Step 3: Validate improvements, document changes, and establish best-practice patterns for maintainability Let's discuss more through chat. I can start immediately. Thank you, Manoj Kumar
₹1,500 INR in 40 days
6.1
6.1

Hi, I went through your requirement and I have more than 10 years of experience in C#, .NET, SQL Server, Entity Framework, LINQ optimization, and backend application development. I understand that your frontend and API layers are already developed and the current focus is stabilizing and optimizing the database layer for better performance and maintainability. I have worked on multiple enterprise .NET applications involving: SQL Server performance tuning Entity Framework optimization LINQ query optimization Stored procedure development and refactoring Index tuning and execution plan analysis Database schema redesign and normalization Query optimization for large datasets API and database performance improvements In previous projects, I have improved slow-running queries, optimized Entity Framework-generated SQL, reduced API response times, and redesigned indexing strategies to handle production-scale loads more efficiently. Currently, I am working as a Full Stack Developer and regularly handle ASP.NET Core APIs, Angular applications, SQL Server optimization, and enterprise workflow systems. Once I review the current database structure and performance concerns, we can discuss the implementation approach, timeline, and pricing based on the actual effort involved. Looking forward to discussing the project further.
₹1,875 INR in 40 days
5.3
5.3

Hi, My name is Ali and I can absolutely optimize your application's data layer. I specialize in bridging the gap between C# .NET frameworks and high-performance SQL Server environments to eliminate critical bottlenecks. You can view my technical expertise, project history, and past client feedback directly on my professional profile at freelancer.com/u/AliSafder. I shall review the Queries and Stored Procedures which are causing issues and will do fixing accordingly. Regards, Muhammad Ali Safder
₹1,875 INR in 40 days
5.3
5.3

Hello, I have read your job description and I am interested in your job post. I am ready to start now. Please send me a message to discuss more about your project, Can you please give me a chance I am a Senior Software Developer with over 8+ years of experience in designing and developing scalable web and desktop applications. I specialize in Microsoft technologies and delivering high-quality, secure, and performance-driven applications. My Expertise: Backend Development:ASP.NET, ASP.NET Core, MVC, Web API, WebForms, WCF Services Programming Languages:C#, Frontend Development:JavaScript, jQuery, AJAX, HTML, CSS Database Technologies:SQL Server, MySQL Reporting Tools:Crystal Reports, RDLC, SSIS, SSRS
₹1,250 INR in 40 days
4.9
4.9

As a developer who specializes in .NET and has extensive experience with SQL Server, I am confident that I can greatly contribute to the optimization of your application's database. With a fondness for solving complex problems, I have honed my skills in assessing existing schemas, refactoring or redesigning where necessary, and tuning indexes to ensure peak performance. One aspect that sets me apart is my ability to identify and implement best-practice patterns, which will ensure that your code not only maintains excellent performance but remains maintainable for future endeavors. I have worked on similar projects before, dealing with LINQ queries and stored procedures, finding efficient solutions that delivered measurable gains in production-like loads. Choosing to work with me means relying on someone who doesn't just promise results but delivers them. My track record is defined by clean, reliable solutions, and with my approach being synonymous with scalability, security, and high-performance applications like yours. Sharing a sanitized backup will let me assess your project more accurately and design the perfect strategy for its optimization. So why wait?
₹1,250 INR in 40 days
3.4
3.4

Hi, I can help you stabilize and optimize the SQL Server layer in your .NET application, especially since you already have the API and frontend in place and are now running into data-layer performance bottlenecks. I have experience working with SQL Server in production .NET environments using Entity Framework (Code First + Migrations), LINQ-heavy APIs, and hybrid setups involving stored procedures for performance-critical paths. My focus in situations like yours is not just “query tuning,” but building a maintainable and predictable data layer that performs well under real load. Here’s how I typically approach this kind of work: • Schema & Migration Review I start by analyzing EF migrations, table design, relationships, and normalization issues that may be impacting performance or scalability. • Query & LINQ Optimization I identify N+1 issues, inefficient LINQ translations, missing includes, and unnecessary data loading patterns, then refactor both queries and supporting indexes. • SQL Server Performance Tuning I review execution plans, detect bottlenecks, and optimize indexing strategy (clustered/non-clustered, covering indexes, filtered indexes where needed). • Stored Procedure Refactoring Existing procedures are audited for logic duplication, parameter sniffing issues, and missing set-based optimizations. Looking forward to collaborating. Skills Required: SQL Server, .NET Core, Entity Framework, LINQ, Performance Tuning, Database Design
₹1,250 INR in 40 days
3.6
3.6

Hi there, I carefully reviewed your requirement and understand that your frontend and API layers are already in place, while the main bottleneck now is making the SQL Server layer stable, optimized, and scalable for production level performance. I have experience working with .NET applications where Entity Framework, stored procedures, LINQ queries, and SQL Server performance tuning become critical as projects grow. I can help with - • SQL Server schema review and optimization • Query tuning and execution plan analysis • Index optimization for faster reads and writes • Refactoring slow LINQ queries where needed • Stored procedure optimization and cleanup • Improving Entity Framework data access patterns • Database normalization and maintainability improvements Let's connect to discuss and start work! Thanks Saurabh
₹1,250 INR in 40 days
3.0
3.0

Hi, I’ve been working with C# .NET and SQL Server for several years, mainly on enterprise applications where performance and scalability become critical once systems start handling production-level traffic. Your requirement matches the kind of work I usually handle — especially around Entity Framework migrations, LINQ optimization, stored procedures, indexing, and SQL Server performance tuning. In previous projects, I’ve worked on: * High-volume transactional systems * Booking and pricing platforms * Audit/logging modules * Bulk data processing * Complex reporting queries * Multi-tenant database structures One recent system had major API slowdowns due to nested LINQ queries, missing indexes, and heavy DB round trips. After query restructuring, execution plan analysis, and indexing optimization, response times improved significantly and database load became much more stable. I can help with: * Reviewing existing schema and relationships * Query & stored procedure optimization * Index tuning * EF/LINQ performance improvements * Reducing unnecessary DB calls * Improving maintainability and scalability My approach is to first understand the current architecture, identify bottlenecks, review execution plans, and then optimize without disturbing the existing application flow unnecessarily. Happy to review the repo and sanitized backup once we align on milestones and expectations. Looking forward to discussing this further.
₹1,670 INR in 20 days
3.1
3.1

Hi, I’m a Full-Stack .NET Developer with 6+ years of experience in ASP.NET Core, C#, Web API, Angular, Entity Framework, and SQL Server. I’ve worked extensively on optimizing SQL Server databases for enterprise applications. In one of my recent projects, I improved API response times by 60–70% by analyzing execution plans, optimizing stored procedures, rewriting inefficient LINQ queries, and adding targeted indexes. I also reduced report generation time from 30 seconds to under 5 seconds. My SQL Server expertise includes: Database design and normalization Entity Framework migrations Stored procedures, views, and functions Query optimization and execution plan analysis Clustered/non-clustered index tuning SQL Server Profiler and Query Store LINQ optimization (AsNoTracking, projection, pagination) My approach: Review schema, EF migrations, and relationships Analyze slow queries and stored procedures Optimize indexes and query patterns Refactor LINQ and data access code Deliver a performance comparison report and best-practice recommendations I can review your repository and sanitized backup and propose milestone-based improvements to make your data layer scalable, maintainable, and production-ready. Looking forward to working with you. Best regards, Kaushik Radadiya
₹1,250 INR in 40 days
2.6
2.6

Hello, I am Sally , I have a solid experience in SQL Server and Entity framework , i can simply build this For you. First we will build Strong ER Diagram For the Database, Then Create the Data Access Layer in your application , Then We will Create classes For this ER Diagram to can simply create the Data base , Finally we will create Linq Queries So we can access database and simply restore what we want From it. Hope To hear From You Soon to share more details. Thanks in advance.
₹2,000 INR in 40 days
1.9
1.9

✨ Hi, I can review and optimize the SQL Server data layer behind your C# .NET application so the schema, stored procedures, EF migrations, and LINQ queries perform reliably under production style load. I have experience with SQL Server, Entity Framework, C#, LINQ optimization, stored procedure tuning, index strategy, execution plan analysis, query refactoring, schema cleanup, and database performance troubleshooting in .NET systems. My first step would be to review the current schema, slow queries, stored procedures, indexes, and sanitized backup, then identify the exact bottlenecks instead of making random changes. I can tune indexes, rewrite inefficient queries, improve stored procedures, adjust EF patterns where needed, and document the changes so your application remains maintainable. I’ll also share before and after performance notes where possible, such as reduced query time, better execution plans, or lower database load. I can start once you share the repo and database backup. Best regards Ankit
₹1,250 INR in 40 days
1.7
1.7

Hi, I am a Senior .NET Developer with 4+ years of hands-on experience in building robust and scalable Desktop & Web applications. I specialize in C#, ASP.NET, .NET Core, RESTful APIs, Entity Framework, and MS SQL Server. Throughout my career, I have successfully delivered end-to-end solutions across diverse domains, including ERP, Inventory Management, School Management, and Healthcare, as well as fully customized applications tailored to specific client requirements. I am passionate about writing clean, efficient code and committed to delivering high-quality software solutions that meet both technical and business objectives. Thanks & Regards, Deepak Senior .NET Developer
₹1,900 INR in 30 days
3.4
3.4

Hi there, I understand you’re looking for an expert who can optimize SQL Server performance for a .NET application by improving database efficiency, query execution, scalability, and overall system responsiveness. The goal is likely to reduce slow queries, improve API/application performance, optimize indexing and execution plans, and ensure the database can handle production workloads reliably. My solution is to analyze your current SQL Server setup, identify bottlenecks, optimize queries/stored procedures, improve indexing strategies, and fine-tune database performance specifically for your .NET application environment. I can also help with execution plan analysis, deadlock troubleshooting, database normalization, caching strategies, Entity Framework optimization, and server-level tuning to improve speed and stability. The focus will be on creating a scalable, maintainable, and high-performing backend system. A few questions before we begin: 1. Which SQL Server and .NET versions are currently being used? 2. Are the performance issues related to slow queries, API response times, deadlocks, high CPU usage, or overall scalability? 3. Is this optimization for an existing live production system or a development/staging environment? Please connect with me on Freelancer chat so we can discuss the technical details and get started right away.
₹1,875 INR in 40 days
0.4
0.4

Hi there, This looks like the point where the app code is mostly in place, but the database layer needs a proper performance pass before it becomes painful in production. I can review your EF migrations, stored procedures, LINQ queries, indexes, and SQL Server execution plans, then fix the slow parts with clear reasoning instead of random tuning. My approach would be: • inspect current schema and relationships • review slow LINQ queries and generated SQL • check stored procedures and execution plans • identify missing/unused indexes • tune joins, filters, pagination, and projections • suggest EF Core patterns to avoid future slow queries • test before/after performance where data allows • document every change clearly I’ve handled SQL Server optimization inside .NET apps where the main issues were heavy EF queries, poor indexing, unnecessary tracking, slow joins, and stored procedures that worked fine on small data but failed under load. Estimated first review: 2 days. Hourly rate: ₹2,000/hour. To start, I’d need repo access, sanitized DB backup, the slowest screens/API calls, and any current query timing or production-like load results.
₹1,875 INR in 40 days
0.0
0.0

I am a full-stack developer with experience in SQL Server optimization. I have worked on similar performance issues before, where I improved application speed significantly by analyzing queries and optimizing table indexes and stored procedures. I am new to freelancing, but I am confident in my technical skills and committed to delivering quality work. I would appreciate the opportunity to showcase my abilities and help improve your application’s performance. Looking forward to working with you.
₹1,250 INR in 40 days
0.0
0.0

Hello, are you looking for an experienced specialist to dive into your .NET application's data layer and completely resolve your database performance bottlenecks? I am Mohamed Abobakr, a Full Stack .NET Web Developer. I have a strong technical focus on database management, specifically utilizing SQL Server within the .NET ecosystem (C#, ASP.NET Core, and Entity Framework). I specialize heavily in writing, refactoring, and optimizing complex SQL Server queries, making me perfectly suited to assess your existing schema and identify exactly what is slowing you down under production loads. I can step in immediately to review your Entity Framework migrations, tune indexes for maximum efficiency, and refactor inefficient LINQ queries or hand-written stored procedures. I focus on establishing solid, best-practice patterns to ensure your data layer remains rock-solid and highly maintainable as your application scales. I am highly comfortable working via Git and GitHub and am ready to review your repository and sanitized backup. Let's connect to discuss the approach and set up our milestones!
₹1,300 INR in 40 days
0.0
0.0

Hi! SQL Server perf tuning inside a .NET / EF Core stack is one of my favourite kinds of problems — happy to take a look. The typical pattern I run when stepping into a project like yours: 1. Baseline first — grab actual execution plans + IO/time stats for the slowest LINQ queries and SPs (Query Store, sp_WhoIsActive, sp_BlitzIndex). No guessing what's slow. 2. Index review — missing indexes, unused indexes, duplicate indexes, fragmentation — most EF migrations leave a lot on the table here. 3. LINQ rewrites where queries are generating bad SQL (N+1, cartesian explosions, IQueryable-vs-IEnumerable slip-ups), or replace with raw SQL/SPs when it's genuinely cheaper. 4. SP refactors — set-based fixes, parameter sniffing, OPTION(RECOMPILE) where appropriate, temp tables vs CTEs. 5. Document the wins (before/after timing) so you have a clear paper trail. A few quick questions before we lock milestones: • SQL Server version + is it on-prem, Azure SQL, or Managed Instance? • Rough data volumes on the hot tables? • Any SLOs you'd like the slow queries to hit? Ready to start as soon as the repo + sanitized backup are shared. — Rohan, APIE Tech
₹1,500 INR in 20 days
0.0
0.0

Hi, I reviewed the requirements and am very interested in this job opportunity. I have 17 years of experience and strong expertise in the required technologies and skills. Please let me know a convenient time to connect and discuss this opportunity in more detail. Thank you.
₹1,875 INR in 40 days
0.0
0.0

Hi, I have hands-on experience with .NET, SQL Server, Entity Framework, LINQ optimization, and backend performance tuning. I can help improve your schema, optimize queries/stored procedures, and make the database layer stable and scalable. I’m currently building my profile here, so I’m flexible with budget and focused on delivering strong results and long-term collaboration. Happy to review the repo and discuss the best approach.
₹1,875 INR in 40 days
0.0
0.0

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