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I will optimize your dot net backend API redis kafka and sql server
Muhammad Ahmad
5.0
5.0
About this gig
I'm a .NET backend engineer with 7+ years building and optimizing high-traffic APIs, multi-tenant SaaS platforms, and microservices for real production systems, including a government-grade IoT fleet platform serving 30+ tenant databases.
I work strictly on backend: ASP.NET Core Web API, SQL Server/MongoDB, Redis caching, Kafka streaming, and cloud deployment (Azure, Docker, Kubernetes).
What I can do for you:
- Fix slow SQL queries, add proper indexing, rewrite inefficient stored procedures
- Reduce memory usage and fix leaks in .NET services
- Add Redis caching to cut database load and speed up response times
- Run load testing and tune your API to handle more concurrent users
- Design scalable multi-tenant or microservice architectures
- Optimize existing C#/.NET code for speed and maintainability
- Improve data storage strategy (archiving, partitioning, SQL vs NoSQL)
I don't take frontend-only or WordPress jobs backend, database, and performance engineering only.
Message me your current stack, pain points, and expected load I'll reply with a clear plan, usually within a few hours.
Get to know Muhammad Ahmad
Muhammad Ahmad
Let's make your business live
- FromPakistan
- Member sinceNov 2020
- Last delivery3 years
Languages
Urdu, English
Hi, I'm Ahmad a senior .NET developer with 7+ years building reliable software for startups and growing businesses. Recently I've led backend architecture for a multi-tenant SaaS/IoT platform (.NET 9, Kafka, MongoDB, Redis) and held senior full-stack roles pairing ASP.NET Core with React and Next.js. I enjoy turning complex requirements into clean, maintainable systems, from CRMs to e-commerce platforms to real-time tracking backends. Open to freelance projects, ongoing support, or full-time hire, happy to chat about your project.
FAQ
Do you only build APIs, or also background/hosted services?
Both. I build and optimize ASP.NET Core Web APIs as well as background workers, scheduled jobs, and hosted services.
What backend technologies do you specialize in?
ASP.NET Core/.NET 9, C#, SQL Server, MongoDB, Redis, Kafka, and Entity Framework. Backend and database performance only not frontend design.
Can you optimize my existing slow API or database?
Yes send me your schema, slow queries, or endpoints and I'll audit indexing, query plans, caching, and code structure, then apply fixes with before/after benchmarks.
Do you handle high-traffic or multi-tenant systems?
Yes, I've built multi-tenant SaaS backends handling 30+ tenant databases with Redis caching, Kafka streaming, and load-tested APIs for real-time data ingestion.
What do you need from me to start?
Access to your repo or relevant code, your database schema, and a description of the issue or feature needed. NDAs welcome.
Can you reduce my hosting or storage costs?
Yes I set up archiving, tiered storage, or cleanup jobs so old data moves to cheaper storage automatically, cutting costs without losing access.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
S subhammohant210
India
Ahmed was so easy to work with, brilliant person and too friendly to explain each and every term. Will definitely work in future again
$100-$200
Price
Helpful?D dprince404
United States
Great work. He went above and beyond. I will definitely hire him in the future!
$600-$800
Price
Helpful?W 
workcomputer12
Turkey
Ongoing collaborationthanks for project.good seller.I recommend.fast and honest
$50-$100
Price
Helpful?K kinggoff
Canada
Muhammed is a pleasure to work with. He is a good communicator and takes pride in his work. He is responsive, attentive and looks for solutions to be sure you are satisfied.
$200-$400
Price
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
S subhammohant210
India
Ahmed was so easy to work with, brilliant person and too friendly to explain each and every term. Will definitely work in future again
$100-$200
Price
Helpful?D dprince404
United States
Great work. He went above and beyond. I will definitely hire him in the future!
$600-$800
Price
Helpful?W workcomputer12
Turkey
Ongoing collaborationthanks for project.good seller.I recommend.fast and honest
$50-$100
Price
Helpful?K kinggoff
Canada
Muhammed is a pleasure to work with. He is a good communicator and takes pride in his work. He is responsive, attentive and looks for solutions to be sure you are satisfied.
$200-$400
Price
Helpful?
