You will get Performance Optimization for Your .NET / ASP.NET Core API
Rising Talent
Project details
Your .NET API is slow, timing out, or struggling under load?
I can help identify the root cause and optimize it for stability and performance. Because after 13+ years of backend engineering experience and 27+ enterprise systems delivered, I specialize in diagnosing performance bottlenecks in production APIs and implementing scalable solutions.
I help improve:
• Slow API response times
• Database query bottlenecks
• Inefficient backend logic
• Memory and CPU performance issues
• Poor API architecture and scalability
Typical improvements include:
1-Query optimization (SQL Server / mySQL/PostgreSQL)
2- Async and thread optimization
3-API response time improvements
4-Caching strategies (Redis / in-memory)
5-Clean refactoring for maintainability
My focus is identifying the real performance bottleneck and implementing clean, scalable fixes that keep your system stable as it grows.
I can help identify the root cause and optimize it for stability and performance. Because after 13+ years of backend engineering experience and 27+ enterprise systems delivered, I specialize in diagnosing performance bottlenecks in production APIs and implementing scalable solutions.
I help improve:
• Slow API response times
• Database query bottlenecks
• Inefficient backend logic
• Memory and CPU performance issues
• Poor API architecture and scalability
Typical improvements include:
1-Query optimization (SQL Server / mySQL/PostgreSQL)
2- Async and thread optimization
3-API response time improvements
4-Caching strategies (Redis / in-memory)
5-Clean refactoring for maintainability
My focus is identifying the real performance bottleneck and implementing clean, scalable fixes that keep your system stable as it grows.
Programming Languages
ASP.NET, TypeScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$120
|
Standard
$300
|
Advanced
$700
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 7 days |
Number of Revisions | 2 | 2 | 2 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Frequently asked questions
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WR
Waqas Ahmed R.
May 5, 2026
Full Stack Developer with .NET, Angular Experience
Thanks Haseeb for your dedication and on time delivery of work: sure we will work in the future.
MH
Muhammad H.
Apr 4, 2026
You will get debug & Fix Issues in Your C# / .NET Application
Haseeb did an outstanding job on this project. The deliverables perfectly matched the description in their Project Catalog, and they delivered ahead of schedule. Great communication throughout!
HM
Hafiz M.
Jan 7, 2025
Database Script Development and Optimization Expert Needed
Haseeb was highly professional, delivered excellent quality work on time, and maintained polite communication throughout. Highly recommended!
About Haseeb
Custom Software & AI | Angular, .NET, Phyton| AWS/Azure
100%
Job Success
Subang Jaya, Malaysia - 12:02 pm local time
I'm Haseeb, a Malaysian based senior engineer with 13-Year experience and $37M in Delivered Solutions and contributed for World Bank, Petronas & Fortune 500 companies projects.
I turn ideas into MVPs and production-ready solutions. Expert in microservices-based, multi-tenant SaaS, Web3, CRM, ERP and Cloud Applications. I manage entire software lifecycle, from architecture and CI/CD pipelines to deployment and long-term maintenance, ensuring secure, high-performance solutions.
ACCOMPLISHMENTS:
1-Smart Business Card- Smart Nation Expo 2025-Kuala Lumpur
2-Digital Nomad Expert 2024-Malaysia
3-Supply Chain Automation Product in LEAP 2023-Riyadh
4-Employee Access portal presented in HCTC 2023-Florida
5-Delivered integrated enterprise solution in record 6Months- Adcoop, UAE
6-Led core team World Bank Project ($17M)
YES, I AM READY:
Fix performance bottlenecks, secure your system, and deliver a production-ready solutions.
Technical Skill Set:
* AI & Intelligent Integrations: Replit,n8n, OpenCode, Cursor, Claude, Gemini, GPT, Notebook LLM,GitHub Copilot, OpenRouter
* Backend & Application Development: C#, .NET Core, ASP.NET Web API, Python, Supa-base
* Architecture: Microservices, REST APIs, Distributed Systems, Clean Architecture, DDD, CQRS
* Frontend & UI Development: Angular, React, JavaScript, TypeScript, HTML, Tailwind, jQuery
* Cloud, DevOps & Infrastructure: Azure , Docker, Kubernetes, Nginx
* Access Management: Azure Active Directory (AD), Keycloak ,OAuth2
* Databases & Data Storage: AzureSQL, MySQL, PostgreSQL, MongoDB, SQL Server
* API Design & System Integration: REST APIs, SOAP, GraphQL, OpenAPI,
* Messaging, Streaming & Queues:RabbitMQ, Azure Service Bus, Redis , Azure Event Grid
* Version Control & Collaboration: Git, GitHub, Bitbucket, TFS, Tortoise SVN, Azure DevOps
* Design & Documentation: Figma, Canva, IBM Focal Point,Drawio
* Project Management: JIRA, Redmine, ClickUp, DevOps Borad
* Code Quality & Analysis: SonarQube
Keywords:
.NET Developer | C# Developer | ASP.NET Core | Backend Developer |Frontend Developer | SaaS Architect | Enterprise Software Development | Microservices Architecture | Multi-Tenant SaaS | REST API Development | API Integration | Azure Cloud | Azure DevOps | CI/CD Pipelines | Cloud Migration | Docker | Kubernetes | SQL Server | Entity Framework | AI Integrations | OpenAI / Azure OpenAI | AI Chatbot Developer | Web Application Development | .NET Core | Full Stack .NET | Enterprise SaaS Backend | Cloud-Native Applications | Scalable Backend Systems | Performance Optimization | React Developer | Frontend Development | Front-end Developer | Angular Developer | TypeScript | JQuery | JavaScript | Figma | RxJS | OData
Steps for completing your project
After purchasing the project, send requirements so Haseeb can start the project.
Delivery time starts when Haseeb receives requirements from you.
Haseeb works on your project following the steps below.
Revisions may occur after the delivery date.
Performance Analysis
I review your API architecture, database queries, and logs to identify the root cause of slow response times or bottlenecks.
Bottleneck Identification
I pinpoint performance issues such as inefficient queries, blocking operations, poor async usage, or heavy API endpoints.