You will get ASP.NET Core Bug Fixing, API Fixes & Feature Enhancement
Project details
You will get professional .NET Core MVC, Web API, database, and frontend bug fixes with clear support and communication.
I will help you fix issues in your existing ASP.NET Core, MVC, Web API, SQL Server, React, or Angular application. This can include backend errors, API issues, database problems, frontend bugs, deployment issues, performance problems, or small feature support.
With 5+ years of experience in enterprise web applications, SaaS platforms, FinTech, ERP, EHR, and automation systems, I focus on clean code, root-cause analysis, proper testing, and clear delivery notes. My goal is to fix your issue safely without disturbing the existing system.
I will help you fix issues in your existing ASP.NET Core, MVC, Web API, SQL Server, React, or Angular application. This can include backend errors, API issues, database problems, frontend bugs, deployment issues, performance problems, or small feature support.
With 5+ years of experience in enterprise web applications, SaaS platforms, FinTech, ERP, EHR, and automation systems, I focus on clean code, root-cause analysis, proper testing, and clear delivery notes. My goal is to fix your issue safely without disturbing the existing system.
Programming Languages
JavaScript, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$50
|
Standard
$100
|
Advanced
$200
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 3 | 4 | 5 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$20 - $50
Additional Revision
+$15
Fix Documentation
(+ 1 Day)
+$15About Ahsan
Senior .NET Engineer |.NET Core| React/Angular| Azure | Micro services
Islamabad, Pakistan - 5:03 pm local time
I specialize in ASP.NET Core, C#, React, Angular, Vue.js, Azure, SQL Server, microservices, CI/CD, FinTech platforms, ERP systems, healthcare applications, SaaS products, and AI/LLM integrations.
I don’t just write code — I help clients design, build, improve, and scale reliable software systems.
What I can help you with:
✅ ASP.NET Core / C# backend development
✅ Full-stack web applications using React, Angular, Vue.js, and TypeScript
✅ SaaS platforms, admin portals, dashboards, and business systems
✅ REST APIs, microservices, SignalR, and event-driven architecture
✅ SQL Server, MySQL, MongoDB, Redis, and database optimization
✅ Azure, Azure DevOps, CI/CD pipelines, Docker, and GitHub Actions
✅ Stripe, Plaid, Open Banking APIs, FIX Protocol, and FinTech integrations
✅ OpenAI API, Azure AI Foundry, RAG pipelines, and Vector DB integrations
✅ Authentication and security using OAuth2, OpenID Connect, JWT, and IdentityServer
Selected project highlights:
🏭 Industrial Manufacturing Automation — Halifax Fan, UK
Built an inverter-based design automation platform for a UK industrial fan manufacturer, reducing design engineers’ manual effort by over 50%. Integrated SAP production KPIs into real-time dashboards, developed an AI Configurator for product selection, and implemented Azure DevOps CI/CD pipelines that reduced deployment time by 60%.
💰 FinTech / Wealth Management SaaS — Mahaana Wealth
Architected a multi-tenant, Shariah-compliant investment platform covering KYC/AML onboarding, digital fund management, NAV computation, portfolio workflows, and automated risk management. Reduced manual review steps by 70%, improved throughput by 35%, and integrated an LLM-powered chatbot that reduced support response time by 60%.
🌏 GroupTogether, Australia
Worked remotely on a live collaborative gifting platform used across Australia and the US. Built secure payment flows with Stripe and Open Banking APIs, developed a multi-language engine that improved international load times by 30%, and shipped a “Thank You” module that increased user re-engagement by 15%.
🏢 ERP / Property Management System
Built a full-featured ERP for real estate and property management companies, including tenant and lease management, CRM for landlords and agents, HR/payroll workflows, and executive dashboards for occupancy and financial reporting.
🏥 Healthcare / EHR & Medical Billing System
Developed a healthcare platform with patient records, appointment scheduling, visit tracking, billing workflows, lab/pharmacy API integrations, and analytics for visit volumes and billing trends.
How I work:
I can own complete features independently or integrate smoothly into your existing team. I follow Agile/Scrum, write clean and maintainable code, communicate clearly, document my work, and take deadlines seriously.
I have led sprint planning, mentored junior developers, managed CI/CD pipelines, and improved sprint velocity by 15% on a cross-functional team.
If you need a senior .NET engineer who can deliver more than just code — someone who can understand your business requirements, design the right architecture, and ship reliable software — I’d be happy to discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Ahsan can start the project.
Delivery time starts when Ahsan receives requirements from you.
Ahsan works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Gathering
Review requirements and understand the issue
Code Analysis
Analyse source code, database, API, logs, screenshots, or error details