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English
$
USD
I will build enterprise dot net web apps to maximize ai utilization and minimize cost
Qasim N
Top Rated
4.9
4.9
What people loved about this freelancer
rosswilkes
United Kingdom
Altered and worked on existing code and then added to, with being available constantly for any issues. Really worked well.
rdteck
United States
I am very salified with the work delivered by the seller. He is very professional and very knowledgeable about C#, ASP.Net, Azure DevOps as well as Infrastructure...
bigstilly
United States
Qasim was easy to work with and managed just fine with what were loose requirements initially but helped to get us where we needed to go.
andrewstockus
United States
Wow what a professional. I never thought I could find this type of talent on here. If I could I would try to hire him just for myself. Very grateful for the work that I have received. 10/10 experience.
holmesph1
United States
Thank you Qasim for a great experience. You delivered with speed and quality. Look no further for your API needs.
About this gig
Hi, I am Qasim! with 18+ years of experience in .NET Core development, I specialize in building enterprise, secure, scalable, and high-performance web applications. Whether you need a custom business solution, a robust Web API, or a modern UI, I have the expertise to deliver.
Note: I dont accept direct orders. Message me first so I can scope the best approach.
What I build
- ASP.NET Core web apps & .NET 8 Web APIs (REST/GraphQL, versioning, caching, rate limits)
- Clean Architecture, DDD, CQRS, modular monoliths & microservices
- Auth & security: JWT/SSO (Azure AD), RBAC, OWASP hardening, secrets & policies
- Data: EF Core, Dapper, SQL Server/PostgreSQL, Mongo/Cosmos, schema & migrations
- Front end: React or Angular (SPA/SSR), component libraries, API integration
- Cloud & DevOps: Azure (App Service, Functions, Service Bus), Docker, CI/CD (Azure DevOps)
- Quality & ops: Unit/integration tests, App Insights, tracing, dashboards, SLAs
- Integrations: third-party APIs, webhooks, payments, CRMs/ERPs
Why work with me
- 1+ years shipping .NET systems at enterprise scale
- Security-first design, measurable performance, clean code & docs
- Transparent communication, reliable timelines, professional handover
Get to know Qasim N
Qasim N
Transform your idea into reality
Top Rated
- FromPakistan
- Member sinceMar 2019
- Avg. response time2 hours
- Last delivery4 months
Languages
English
My name is Qasim. I consider myself a passionate software engineer who is always willing to learn and explore new technologies and then apply it in real world scenarios.
I have more than 18 years of experience spent in developing/designing and managing different software solutions for Hospitality/Publishing industry, online banking, process automation, real estate and e-commerce sectors. I have a comprehensive experience in web applications/site design and development in Dot Net using C #. I have an extensive experience of Java scripting, Angular, Jquery, Html, Restful API, PHP, Wordpress.
My Portfolio
FAQ
Do you offer optimization and bug fixes?
Yes, i am an experience developer and can identify and fix bugs with significant performance improvements.
Do you accept direct orders?
No, I do not accept direct orders. Please consult and discuss first before placing orders.
Do you after maintenance and support services?
Yes, I offer maintenance and support services with additional fee and we can discuss the fee structure.
Can you work in my Azure?
Yes—recommended for security/governance.
Testing?
Unit + integration tests and regression tests.
NDA & code ownership?
NDA happy to sign, code is yours upon full payment.
Docs & handover?
Postman/Swagger, README, architecture notes and diagrams.
Database choices?
MS SQL, PostgreSQL, Mongo/Cosmos. I’ll advise per workload.
Reviews
98 reviews for this Gig
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| (1) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V 
vaquero
Repeat Client
South Africa
I keep coming back to Qasim because he always gets it right. Fast, dependable, and easy to work with. Another job well done.
$100-$200
Price
7 days
Duration
Helpful?V vaquero
Repeat Client
South Africa
Qasim consistently delivers. This isn’t my first project with him, and every time he produces solid, reliable work. Always a smooth experience.
$100-$200
Price
7 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
another successful project. This team works well.
$100-$200
Price
6 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
Qasim N truly EXCEEDED expectations in software development, delivering work of exceptional quality while remaining incredibly responsive throughout the project. Working with him was a breeze, and his prompt communication made collaboration seamless. Highly recommend! 👏
$100-$200
Price
4 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
Qasim N truly EXCEEDED expectations with his software development skills, delivering professional work that stands out! His quick responsiveness made working together a breeze. 👍
$100-$200
Price
4 days
Duration
Helpful?
Reviews
98 reviews for this Gig
| (97) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V vaquero
Repeat Client
South Africa
I keep coming back to Qasim because he always gets it right. Fast, dependable, and easy to work with. Another job well done.
$100-$200
Price
7 days
Duration
Helpful?V vaquero
Repeat Client
South Africa
Qasim consistently delivers. This isn’t my first project with him, and every time he produces solid, reliable work. Always a smooth experience.
$100-$200
Price
7 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
another successful project. This team works well.
$100-$200
Price
6 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
Qasim N truly EXCEEDED expectations in software development, delivering work of exceptional quality while remaining incredibly responsive throughout the project. Working with him was a breeze, and his prompt communication made collaboration seamless. Highly recommend! 👏
$100-$200
Price
4 days
Duration
Helpful?R renelashley
Repeat Client
Barbados
Qasim N truly EXCEEDED expectations with his software development skills, delivering professional work that stands out! His quick responsiveness made working together a breeze. 👍
$100-$200
Price
4 days
Duration
Helpful?
