You will get a custom REST API for your website or app.
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Top Rated
Project details
REST API Development and Backend Solutions
I am an experienced Backend Developer specializing in REST API development, database optimization, and scalable backend systems. My focus is on creating secure and efficient solutions tailored to your business needs.
Services I Offer:
Custom REST API Development using ASP.NET Core and C#
Database Optimization (SQL Server, MySQL, MongoDB)
Cloud Integration with AWS and Firebase
Scalable Architecture Design
Performance Optimization for backend systems
Why Work with Me?
Proven expertise in building robust and scalable solutions
Professional support throughout the development process
Skilled in tools like Postman, Swagger, Visual Studio, and Docker
Free consultation to discuss your project needs
Let’s collaborate to build efficient and scalable systems! Message me to get started.
I am an experienced Backend Developer specializing in REST API development, database optimization, and scalable backend systems. My focus is on creating secure and efficient solutions tailored to your business needs.
Services I Offer:
Custom REST API Development using ASP.NET Core and C#
Database Optimization (SQL Server, MySQL, MongoDB)
Cloud Integration with AWS and Firebase
Scalable Architecture Design
Performance Optimization for backend systems
Why Work with Me?
Proven expertise in building robust and scalable solutions
Professional support throughout the development process
Skilled in tools like Postman, Swagger, Visual Studio, and Docker
Free consultation to discuss your project needs
Let’s collaborate to build efficient and scalable systems! Message me to get started.
Programming Languages
ASP.NET, Java, C#Coding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$300
|
Standard
$500
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 14 days |
Number of Revisions | 2 | 2 | 2 |
Number of Pages | 3 | 6 | 12 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$75 - $250
Additional Revision
+$50Frequently asked questions
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RE
Richard E.
Dec 31, 2025
SAP Consultant Needed for Business One Integration
MK
Monty K.
Mar 19, 2025
SAP B1 Add-On Developer Needed for Automatic Layout Selection (Sales Orders & Invoices)
Umair completed the task to our satisfaction
About Muhammad Umair
SAP Business One Developer | SDK Add-Ons, Integrations & E-Invoicing
100%
Job Success
Lahore, Pakistan - 4:35 am local time
My work covers requirement analysis, development using DI-API, UI-API and Service Layer, SAP HANA / SQL Server queries, deployment, and production support.
I have hands-on experience with:
• SAP Business One SDK (DI-API, UI-API, Service Layer)
• SAP Business One Integrations & Automation
• Custom SAP B1 Add-On Development
• SAP HANA & SQL Server Reporting
• E-Invoicing & Compliance
If this all sounds good to you, click the message button and let’s chat (I’ll respond in <30mins if I’m awake).
𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀:
SAP, SAP Business One, SAP B1, SAP ByDesign, SAP ByD, SAP S/4HANA, SAP ECC, SAP HANA, SAP HANA DB, SAP HANA SQL, SAP Crystal Reports, SAP Fiori, SAP Fiori UX, SAP Fiori Apps, SAP Dashboards, SAP Pervasive Analytics, Boyum B1 Usability Package, B1UP, SAP Coresuite, SAP Xcelsius, SAP B1 SDK, DI API, UI API, Server DI API, B1i, B1i Integration Framework, SAP Service Layer API, REST API, SAP Add-ons, SAP Data Migration, Data Transfer Workbench, DTW, Copy Express, Solution Packages, LSMW, SAP Print Layout Designer, PLD, SAP Reporting, SAP Customization, SAP Workflow, SAP ABAP, SAP BADI, SAP Consulting,SAP Business One Developer, SAP B1 SDK Expert, SAP B1 Addon Developer, SAP Business One Integration Specialist, SAP Service Layer API Developer, SAP Business Technology Platform (BTP) Consultant, SAP S/4HANA Developer, SAP S/4HANA Cloud Extension Specialist, SAP S/4HANA API Developer, SAP Cloud SDK Developer, SAP CAP (Cloud Application Programming) Specialist, SAP RAP Developer, SAP Fiori Developer, SAP UI5 Developer, SAP Fiori App Developer, SAP Integration Suite Expert, SAP API Management Consultant, SAP Business One Customization Expert, SAP B1 API Integration Specialist, SAP B1if Integration Specialist, SAP Workflow Automation Expert, SAP Crystal Reports Developer (SAP B1), SAP Crystal Reports Customization Expert, SAP HANA SQL Developer, SAP HANA Cloud Developer, SAP HANA Optimization Consultant, SAP B1 Database Optimization Specialist, SAP Business One REST API Developer, SAP B1 Migration Specialist,SAP Business One (SAP B1) expert in SDK, DI API, UI API, Service Layer, B1if, HANA, Crystal Reports, DTW, PLD, integrations, custom add-ons, reporting, and data migration.
Steps for completing your project
After purchasing the project, send requirements so Muhammad Umair can start the project.
Delivery time starts when Muhammad Umair receives requirements from you.
Muhammad Umair works on your project following the steps below.
Revisions may occur after the delivery date.
Analyze Requirements
Review and confirm project details and goals.
Develop Solution
Build and customize the API or solution as per requirements.