You will get a monthly care plan for your .NET / ASP.NET Core application
Project details
Keep your ASP.NET Core / .NET application healthy without hiring a full-time developer. I provide monthly bug fixes, monitoring, and small improvements as the same senior developer every month, so nothing falls through the cracks between one-off freelancers.
Each tier includes a monthly hours bucket for bug fixes and small updates, priority response to reported issues, and a monthly status report showing what was fixed and monitored.
Basic: up to 5 hrs/month, best for a stable app that just needs occasional fixes and monitoring.
Standard: up to 12 hrs/month, with room for small feature work alongside maintenance.
Premium: up to 25 hrs/month, with priority response and a more detailed monthly report.
This plan covers bug fixes, monitoring, and small updates. Larger new features are scoped and quoted separately, and guaranteed same-day emergency response is included on Premium (or available as an add-on on other tiers).
Backed by 13+ years building and maintaining production .NET / ASP.NET Core systems.
Each tier includes a monthly hours bucket for bug fixes and small updates, priority response to reported issues, and a monthly status report showing what was fixed and monitored.
Basic: up to 5 hrs/month, best for a stable app that just needs occasional fixes and monitoring.
Standard: up to 12 hrs/month, with room for small feature work alongside maintenance.
Premium: up to 25 hrs/month, with priority response and a more detailed monthly report.
This plan covers bug fixes, monitoring, and small updates. Larger new features are scoped and quoted separately, and guaranteed same-day emergency response is included on Premium (or available as an add-on on other tiers).
Backed by 13+ years building and maintaining production .NET / ASP.NET Core systems.
Programming Languages
ASP.NET, C#Coding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$350
|
Standard
$650
|
Advanced
$1,200
|
|---|---|---|---|
| Delivery Time | 30 days | 30 days | 30 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Emergency Same-Day Response
+$150
Quarterly Architecture Review
+$300Frequently asked questions
About Sahidul
Senior .NET Core Developer | ASP.NET Core, SaaS & ERP | AI Integration
Dhaka, Bangladesh - 1:18 am local time
Over the past decade I've led technical teams and delivered systems for MetLife, Telenor Health, ShareTrip, and Monstar Lab, working across core banking, digital healthcare, and online travel platforms. Alongside that, I independently design, build, and ship complete business software under my own brand, Zero Byte BD - 25+ production ASP.NET Core applications (ERP, POS, hospital & school management, inventory, invoicing) and a Windows utility app, Net Speed Meter, used by over 1 million people. I've also written five published technical books on C#, ASP.NET Core, and SignalR.
What I can do for you:
- Design and build ASP.NET Core / .NET web apps, REST APIs, and admin dashboards from scratch, or take over and stabilize an existing codebase.
- Build multi-tenant SaaS products, ERP/POS systems, and business management platforms with Entity Framework Core, SQL Server/MySQL, and clean, documented architecture.
- Integrate AI (OpenAI/Claude/Azure AI) into existing .NET applications.
- Add real-time features (SignalR), secure authentication/authorization, and third-party API integrations.
- Lead delivery end-to-end - requirements, architecture, sprint planning, and hands-on coding - as a Certified Scrum Master (CSM(R)) and Scrum Product Owner (CSPO(R)).
I write clean, maintainable code, document what I build, and communicate clearly in English throughout the project. Browse my Project Catalog below for fixed-price ASP.NET Core services - from a quick bug fix to a full ERP build - or message me about a custom project. I'm happy to start with a short paid trial task if that helps you evaluate fit.
Steps for completing your project
After purchasing the project, send requirements so Sahidul can start the project.
Delivery time starts when Sahidul receives requirements from you.
Sahidul works on your project following the steps below.
Revisions may occur after the delivery date.
Kickoff & first review
Get repo access, review the app and any known issues, and set up how you'll report bugs during the month.
Ongoing monthly work
Fix bugs as reported, monitor the app, and handle small updates within your tier's hours bucket.