.NET E-Commerce Backend Optimization

@Jennycreation

With over 17 years of experience in developing and optimizing ASP.NET applications, my team and I are well-equipped to tackle your e-commerce site issues head-on. We specialize in identifying and eliminating performance bottlenecks in complex .NET environments like yours. Profiling your application, we'll pinpoint any inefficient queries, memory leaks, or blocking calls that could be causing the lag. Our approach is not only to optimize for immediate needs but also to ensure long-term stability. We will provide clean, well-commented code patches that restore sub-second response times while enabling it to withstand typical traffic, even post-deployment. Our comprehensive diagnostic report will provide a transparent view of the root causes of the performance issues and the metrics showcasing the improvements post-fixes. In addition to our solid expertise in .NET, we have a proven track record in SQL Server optimization as well which would help us address any potential database-related issues that may be contributing to the overall slowdown of the system. Rest assured, with us, you won't just get timely fixes for your problems but also valuable recommendations for ongoing monitoring and maintenance. For a reliable solution tailored specifically to your needs, choose us as your partner for this project.

@BasharatHussaini

Hi, I’m a .NET Tech Lead with 8+ years of experience in ASP.NET Core/Web API, MVC, Entity Framework, SQL Server, IIS, and Angular. I can profile your application to identify the real performance bottlenecks across the .NET backend, EF queries, and SQL Server, then implement clean and maintainable fixes. I’ll also optimize database queries/indexes, address blocking or memory issues, and validate improvements through testing and performance metrics. I can deliver the optimized code, database changes, before/after performance report, and concise hand-off documentation. I’m ready to start with profiling and root-cause analysis.

@vinod150987

Hi, I have strong hands-on experience troubleshooting and maintaining production .NET e-commerce and business applications, with a particular focus on server-side performance, ASP.NET MVC/Web API, IIS, Entity Framework, and SQL Server. I can start with a structured performance assessment of the application and infrastructure to identify the actual bottlenecks rather than applying assumptions. This includes profiling IIS and ASP.NET request execution, reviewing application logs and CPU/memory usage, analyzing Entity Framework queries and SQL Server execution plans, and investigating blocking calls, connection issues, inefficient database operations, and potential memory leaks. Once the root causes are identified, I will implement focused, clean, and well-commented fixes while keeping the existing functionality intact. I can also optimize database queries, indexes, EF operations, application code, and IIS configuration where appropriate.

@Prutheus

Sub-second to five seconds with rising CPU and intermittent timeouts is a recognisable pattern, and in a .NET e-commerce backend it is usually one of three things — none of which you can identify by reading the code. So I would measure before changing anything: - Profile under real load and check the database first. In my experience the cause is most often a missing index that only started mattering as the table grew, or an ORM query issuing one call per row inside a loop. Both look innocent in code and are obvious in a query trace. - Check connection pool exhaustion, which produces exactly your symptom set — fine under light load, timeouts and high CPU under pressure, often from undisposed contexts or sync-over-async blocking threads. - Look at caching: what is being recomputed per request that could be cached, particularly catalogue and pricing data. Then fix in order of measured impact, with before-and-after numbers so you can see what each change bought. Bug fixes and maintenance ongoing, as you scoped. Background: performance work on production systems is routine for me — SQL Server, PostgreSQL and MySQL tuning, EXPLAIN-driven rather than guesswork. .NET is on my stack, though my deepest application work is Node, Python and PHP; for diagnosis and database-level optimisation that distinction does not matter much. Questions: can you share slow-query logs or APM data if you have any, and what is the database — SQL Server? Also, is the site on IIS or containerised? Martin

@mahads31

As a seasoned software developer with an impressive track record of optimizing e-commerce backends, I am convinced I can make a significant impact on your .NET stack. I acknowledge the pressing concern on your website's performance and understand the importance of maintaining sub-second response times under high traffic. To troubleshoot, I would commence by performing meticulous profiling to identify any bottlenecks across the entire technology stack - from IIS to ASP.NET. In addition to this, my expertise with Entity Framework and SQL Server positions me well to spot inefficiencies in queries and database scripts that might be contributing to the slowdown. Furthermore, my methodical approach will ensure that any changes made to the system are well-documented and thoroughly tested before deployment. By partnering with me, you can not only anticipate consistent response times below 1s for 95% of requests but also an actionable diagnostic report spelling out performance metrics pre/post fixes and comprehensive hand-off notes guiding your team going forward.

@waqarinfo

Greetings, What’s currently showing the highest latency in your Application Insights—SQL queries, EF operations, API calls, or IIS/CPU usage? I’m a Senior .NET Full Stack Engineer with more than 11 years of experience optimizing and maintaining enterprise applications using ASP.NET MVC/Web API, Entity Framework, SQL Server, and IIS. I can profile the backend, identify the actual bottlenecks, and implement focused fixes for queries, blocking calls, memory usage, caching, and connection handling. I’ll provide measurable before/after performance results, clean, tested patches, and a concise hand-off with monitoring recommendations. My goal is to bring 95% of requests back under 1 second while keeping the application stable in staging and production. Let's connect for a detailed discussion Best Regards, Waqar H.

@sumitwebrainbows

As an experienced full-stack developer with a strong focus on .NET and backend optimization, I firmly believe I am the best fit for your project. With a deep understanding of ASP.NET, Web API, Entity Framework, and SQL Server, I have garnered essential experience in diagnosing and remedying performance issues like the ones you're experiencing. My toolkit is equipped with skills tailored to refining e-commerce applications, including impeccable coding habits and sound database management. In hiring me, you are gaining a professional who is committed to excellent communication, timely delivery, and exceeding expectations. My proposed plan for your project entails not only addressing existing issues but also optimizing your backend for the future. Additionally, given my experience working collaboratively with cross-functional teams to facilitate DevOps processes, I ensure each patch is well-documented and accompanied by concise hand-off notes to facilitate easy transitions within your team. Ultimately, with me on board as a part of your team, you can expect both restored performance and strengthened stability on your e-commerce site.

@mikes126

Hi there, let's have short meeting if you wanna discuss the performance issues and current setup. I can profile your .NET backend across IIS, ASP.NET MVC/Web API, EF and SQL Server to find the real bottlenecks instead of guessing. I’ll check slow queries, blocking calls, memory/CPU usage, connection pooling, caching and Application Insights logs. Then I’ll apply clean, focused fixes, add tests where needed, and provide before/after performance metrics. I’ll also keep the staging build stable for the required 48–72 hours and prepare a short handoff with the changes and monitoring tips. I have strong experience with C#, .NET and SQL performance tuning, especially backend issues under load. Budget: $120 Timeline: 4 days

@aakaashberi

Your acceptance criteria need a baseline before anything changes, or there is no way to prove the 95th percentile moved. First thing I do is capture current numbers under real traffic, not a synthetic test, so before and after are measured the same way. On a .NET backend that degraded without a code change, the usual causes in the order I find them: Entity Framework N+1 queries that were fine at low data volume and are not now, plus missing or fragmented indexes on the columns your queries actually filter on. Sync-over-async - .Result or .Wait() on an async call - starving the thread pool. That matches your symptoms exactly: high CPU, spiking response times, occasional timeouts, worsening with traffic rather than degrading smoothly. Connection pool exhaustion from undisposed contexts, which produces timeouts that look random. Method: profile with a profiler, SQL Server execution plans and Application Insights, then patch the biggest wins first and re-measure after each change, so we know which fix earned which improvement. Patches arrive commented, DB scripts separate so you review them before they touch production. You get the diagnostic report with before and after numbers, the refactored code, and the hand-off note on caching, pooling and what to monitor so this does not creep back. 10 days including the 48 hours in staging.

@gopi2823

Hi, I’m a Software Architect with 14+ years of experience building and optimizing enterprise .NET applications, APIs, databases and distributed systems. This project is closely aligned with my experience in diagnosing performance bottlenecks and improving application reliability. I can start with profiling the application across IIS, ASP.NET MVC/Web API, Entity Framework and SQL Server to identify the actual root causes rather than applying generic optimizations. I’ll investigate areas such as: • Slow SQL queries and database execution plans • Entity Framework inefficiencies and excessive database calls • Blocking/synchronous operations and thread contention • Memory usage and potential leaks • API/server-side bottlenecks • Connection pooling and caching • IIS/application configuration • CPU and request-level performance I’ll provide before/after performance measurements, implement focused fixes, add tests where appropriate, and document the changes and monitoring recommendations. My approach is to improve performance without compromising application stability or maintainability. I’m comfortable working with existing production codebases and troubleshooting complex issues systematically. I can also help identify architectural issues that may cause the same performance problems to return as traffic increases. I’d be happy to review the current application and start with profiling and root-cause analysis. Best regards, Kumaran

@amit210279

Hi there, **Understanding of the Project:** I understand that your live .NET e-commerce backend is experiencing slow response times, time-outs, and high CPU usage under load. You need the root causes identified and performance restored without introducing new issues. **My Solution:** I’ll systematically profile IIS, ASP.NET MVC/Web API, Entity Framework, and SQL Server to identify inefficient queries, blocking calls, memory issues, and other bottlenecks. I’ll then implement clean, well-documented fixes, optimize database queries and backend code, and review caching/connection-pooling opportunities. I’ll validate the improvements in staging and ensure existing tests continue to pass before deployment. **A few questions:** 1. Which .NET version, Entity Framework version, and SQL Server version is the application currently using? 2. Do you already have Application Insights/profiling data showing the slowest endpoints or queries? 3. Is there a staging environment where I can benchmark and validate the fixes before production? I’d be happy to review the current bottlenecks and discuss the optimization approach. **Please chat with me in Freelancer chat so we can discuss the project and get started.** Warm Regards, Amit

@EnriqueHR

YOUR E-COMMERCE SITE SHOULDN’T SLOW DOWN AS YOUR TRAFFIC GROWS — I’D FOCUS ON FINDING THE BOTTLENECK, NOT MASKING THE SYMPTOMS. I specialise in diagnosing backend performance issues across .NET, ASP.NET MVC/Web API, Entity Framework and SQL Server, including inefficient queries, blocking calls, memory issues and database bottlenecks. I’ll profile the application, identify measurable root causes, implement clean fixes and validate performance in staging before deployment. I’ll also document the before/after metrics, code changes and monitoring recommendations. I’ll keep communication clear throughout and ensure existing functionality and tests remain stable. Regards, Enrique.

@rajeshrolen

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. Happy to share a quick plan if you're open to it. Regards, Rajesh

@RyanF172

We have over 5 years experience with similar projects for e-commerce platforms. You're looking to optimize your .NET backend to resolve performance issues, including long page load times and high CPU usage, while focusing on bug fixes and maintenance. To tackle your project's needs, I will begin by profiling the application to identify performance bottlenecks. This includes analyzing IIS, ASP.NET MVC, Entity Framework, and SQL Server to find inefficient queries and memory leaks. I will implement clean patches that restore sub-second response times and ensure stability in the staging environment for at least 48 hours before going live. Deliverables: * Diagnostic report outlining root causes and performance metrics before/after fixes * Refactored .NET code and updated database scripts * A concise hand-off note detailing changes and monitoring recommendations I'm happy to share relevant examples from my portfolio. Let's discuss how we can enhance your e-commerce backend. Regards, Ryan

@furkanbahadir81

With over a decade of experience as a Software Engineer, I have become well-versed in optimizing and maintaining e-commerce sites running on the .NET stack. I have successfully diagnosed and resolved performance issues similar to what you're experiencing, with an unwavering commitment to meeting stringent response time requirements. My proficiency extends across your tech stack from IIS, ASP.NET MVC / Web API to Entity Framework and SQL. I prioritize efficiency in my code. As such, my patches are clean, well-commented, and supported by updated database scripts where necessary. My impeccable problem-solving ability has facilitated the identification of root causes and determination of appropriate refactoring measures that yield consistent improved results. What makes me the perfect candidate is not just my technical skills on paper but also my mindset towards building products that meet real-business needs. Additonally, having worked on enterprise-grade projects, I am well aware of the significance of not compromising any existing functionalities during alterations. I am certain that with my skills and dedication, we can restore sub-second response times on your site and ensure its stability for a long time to come.

@wvale

Hi — performance work on ASP.NET + SQL Server backends is my daily bread: I maintain large-scale .NET business platforms where I regularly hunt down slow EF queries, blocking calls and memory pressure, using Application Insights (which you already have — big advantage) plus SQL Server execution plans and profiling. My plan for your site: 1. Profile first, touch nothing: baseline metrics from App Insights + SQL DMVs to identify the real bottlenecks (inefficient EF queries and missing indexes are the usual suspects at 5s render times). 2. Targeted fixes: query/index optimization, caching where it pays off, async/connection-pooling corrections — clean, commented patches, no rewrites. 3. Deliver exactly what you listed: before/after diagnostic report, refactored code + DB scripts, and a hand-off note with settings and monitoring recommendations. I work with AI-assisted tooling which makes me fast on unfamiliar codebases, and I'm comfortable with your 48h-staging + 72h-App-Insights acceptance criteria. Available to start today.

@tehwain99

Hello, This project is a strong match for my .NET backend and SQL Server experience. I have hands-on experience with C#, ASP.NET MVC, Web API, Entity Framework, SQL Server and backend performance optimization. I will approach the problem through profiling and measurable analysis rather than making blind code changes. My approach will be: • Establish baseline response-time, CPU and database performance metrics • Profile IIS, ASP.NET MVC/Web API, Entity Framework and SQL Server • Identify slow queries, inefficient EF operations, blocking calls and unnecessary database operations • Review execution plans, indexes and database access patterns • Analyze memory and CPU bottlenecks • Implement targeted C# and SQL optimizations • Run before/after performance tests • Validate fixes in the staging environment • Ensure existing tests continue to pass • Provide a diagnostic report and concise technical hand-off documentation I will also document any recommended caching, connection-pooling, configuration or monitoring changes. I would establish the application’s actual baseline first and then work toward the ≤1 second / 95th percentile target based on the identified bottlenecks, rather than making an unrealistic performance guarantee without profiling the system. Fixed price: ₹12,500 Estimated delivery: 7–10 days I am comfortable working with an existing .NET codebase and can keep the changes focused, maintainable and easy to review. Best regards, Sameer

@AbdulMoid360

Hello, Your mention of response times increasing from under 1 second to over 5 seconds immediately suggests a few areas worth investigating: • Inefficient EF Core queries or N+1 query issues • Missing database indexes • Excessive data loading or tracking overhead • Synchronous operations blocking request threads • Caching opportunities for frequently requested data • Connection pool or resource contention under load I recently built and deployed a full-stack e-commerce application using ASP.NET Core Web API, SQL Server, Redis caching, JWT authentication, Docker, and structured logging. While my project was smaller in scale, it gave me hands-on experience diagnosing API performance and database-related bottlenecks. For your project I would begin by: Profiling the application and identifying the slowest endpoints. Reviewing database queries and execution plans. Checking Entity Framework usage and tracking behavior. Evaluating caching opportunities. Measuring improvements before and after changes. I can also provide a concise report documenting findings, optimizations made, and recommendations for future monitoring. I'd be happy to discuss your current architecture and performance metrics before starting. Regards, Abdul Moid

@JureJovic

Here! Hello there, I’m a full stack web developer (backend & frontend) with 6 years of professional experience over 600 projects done. I create all kinds of websites with a strong focus on building clean, modern and responsive websites that align with your specific business goals. I work with a solid stack of technologies including HTML5, CSS3, Flexbox, Bootstrap, JavaScript, React, C#, ASP .NET and MS SQL, which allows me to create professional, user-friendly interfaces and robust, secure back-end solutions. Whether you need a modern, fast, secure, and responsive websites, business websites, e-commerce stores, landing pages, booking platforms, website application’s, admin dashboards, REST APIs, authentication, payment integration and database driven solutions. I prioritize performance, clarity of layout, smooth user experience. I also pay close attention to maintainability, so your site can be updated and expanded easily over time. I’m committed to clear communication, meeting deadlines, delivering a solution that feels professional, reliable and price affordable. I'm waiting for your answer Best regards, Jure