🚀

Software Engineering Services

With Case Studies + Architecture + Impact

Service 01

Mobile Application Development

Android & iOS

Overview

Development of scalable mobile applications backed by a robust .NET Core backend architecture. The system is designed using an API-first approach, ensuring maintainability, performance, and seamless integration with other platforms.

Verified Client Mockup

ProFix Mobile

A modern home service marketplace app featuring real-time booking, live technician tracking, and seamless scheduling.

+60%
Completed Bookings
-40%
Manual Workload
Real-time SignalR tracking
Firebase push notifications
Automated technician assignment
9:41
User

Location

Maadi, Cairo

What do you need
help with today?

Cleaning
AC Repair
Plumbing
Electrical

Active Booking

Live

AC Maintenance & Cleaning

Today, 14:30
350 EGP
Tech

Omar Hassan

4.9 • Expert Tech
Home
Bookings
Inbox
Profile

🏗 Architecture Overview

Mobile App (Flutter)
API Gateway (ASP.NET Core)
Application Layer (C# Services)
Domain Layer (Business Logic)
Infrastructure Layer
  • • SQL Server
  • • Redis Cache
  • • Firebase Notifications
External Services
  • • Payment Gateway
  • • SMS API

⚙️ Tech Used

  • Flutter (Mobile)
  • ASP.NET Core Web API (C#)
  • SQL Server + EF Core
  • Firebase (notifications)
  • SignalR (real-time booking updates)

Timeline

MVP: 4 weeks

Full: 8 weeks

Price (EGP)

MVP: 75,000

Full: 140,000

Service 02

ERP Systems Development

Overview

Custom ERP systems built using .NET Core and Domain-Driven Design, enabling full control over business operations including HR, finance, inventory, and production workflows.

-70%
Reporting Time
~60%
Error Reduction

Architecture

React / Next.js Dashboard
Modular .NET Backend
Domain Driven Design
SQL Server Enterprise

Commercials

Timeline

Phase 1: 8 Weeks

Price (EGP)

220,000 - 480,000

app.nexuserp.com

Manufacturing Overview

Real-time production metrics

OCT 2026
Total Output
24,892 +12%
Stock Levels
92% Stable
System Load
0.4s Fast
Active Lines
14 / 15

Inventory Alerts

Critical
Aluminum Coils (2mm)Supplier: Apex Metals
12 / 50 Units
Machine LubricantSupplier: ChemWorks
5 / 20 Units
Service 03

CRM Systems Development

Overview

CRM platforms built using .NET Core with CQRS architecture, focused on managing customer lifecycle, sales pipelines, and automation workflows.

+35%
Lead Conversion
100%
Sales Visibility

Architecture

React / Angular Dashboard
ASP.NET Core API
CQRS Pattern
WhatsApp API Int.

Commercials

Timeline

MVP: 5 Weeks

Price (EGP)

110,000 - 260,000

crm.estateflow.com

Sales Pipeline

Manage and track your active real estate opportunities.

Total Active Leads

+12%
142

vs. last month

Pipeline Value

+8.5%
185.4M EGP

Potential revenue

Conversion Rate

+35%
28.4%

Driven by auto-followups

Pending Actions

-5
24

Calls and meetings due today

New Leads

12
High Auto-WA

Ahmed Hassan

Villa - New Cairo (Mivida)

15,000,000 EGP
Auto-greeting sent 5m ago
Medium

Nour El Din

Apartment - Sheikh Zayed

4,500,000 EGP
Lead captured from Facebook

In Contact

8
High Auto-WA

Sarah Mansour

Twin House - October City

8,200,000 EGP
Waiting for brochure reply
Medium

Karim Youssef

Commercial - New Capital

22,000,000 EGP
Call scheduled at 4:00 PM

Viewing Scheduled

4
High

Laila Mahmoud

Duplex - Maadi

12,000,000 EGP
Site visit tomorrow, 10:00 AM

Negotiation

3
High

Hassan El-Sayed

Standalone Villa - Zayed

28,000,000 EGP
Reviewing payment plan options

Recent Automated Activity

WhatsApp Brochure Sent

Triggered by: Facebook Lead Ad form submission

Delivered Just now

Follow-up Sequence: Day 3

Sent to: Nour El Din (noureldin@example.com)

Opened 25 mins ago
Service 04

Custom Web Applications

Overview

Custom web platforms powered by .NET Core backend systems, designed for scalability, performance, and business-specific workflows.

+50%
Processing Speed
100%
Digital Workflow

Architecture

Next.js Frontend
ASP.NET Core API
SQL Server Database
Payment & SMS Integrations

Commercials

Timeline

MVP: 6 Weeks

Price (EGP)

90,000 - 180,000

portal.eg-services.gov

Welcome back, Ahmed

You have 2 pending actions requiring attention today.

System Online • Last updated 2m ago

Active Requests

3

2 since last month

Pending Payments

2,450.00

EGP

Due in 3 days

Completed

14

100% success rate

Service Tracking

Service / Application ID Timeline Status Action

Building Permit Renewal

REF: SR-2024-0892
Progress 65%
In Review

Trade License Application

REF: SR-2024-0915
Progress 90%
Pending Pay

Land Registry Update

REF: SR-2024-0742
Progress 100%
Approved

Recent Billing

License Processing

Oct 25 • TXN-8821

2,450.00 EGP

PAID

Inspection Fee

Oct 18 • TXN-7712

450.00 EGP

PAID

Quick Actions

Service 05

Backend & API Engineering

Overview

Design and development of scalable backend infrastructures using C# and ASP.NET Core, supporting high-load applications and complex integrations.

99.9%
System Uptime
< 50ms
Avg. Latency

Architecture

ASP.NET Core Web API
Microservices Cluster
RabbitMQ & Redis
Docker Containers

Commercials

Timeline

4 - 8 Weeks

Price (EGP)

70,000 - 200,000

api.nexus-engine.io

System Overview

Real-time telemetry from ASP.NET Core microservices cluster.

+14.2%

Throughput

12.4k req/s

-8.1%

Avg. Latency

42ms

+0.01%

Error Rate

0.02%

-2.4%

System Load

28%

Request Volume vs Latency

Requests
Latency (ms)

Infrastructure Status

SQL Server Cluster

Primary + 2 Read Replicas

Redis Distributed Cache

6 Nodes (98.2% Hit Rate)

RabbitMQ Cluster

3 Nodes (12 Active Queues)

Docker Resource Usage 64.2%

Active Microservices

Service Name Status Build Uptime Instance Load

Identity Service

Auth

 Healthy v2.4.1 99.99%
12%

Order Processing

Core

 Healthy v1.8.0 99.95%
45%

Inventory Sync

Worker

 Warning v1.2.3 98.42%
88%

Notification Hub

Messaging

 Healthy v3.0.1 100%
5%

Payment Gateway

Integration

 Healthy v2.1.0 99.99%
22%

Recent Traces

2s ago [INFO] Identity JWT Token issued for user_9921
12s ago [WARN] Inventory Redis Cache miss: product_sku_992
45s ago [INFO] Order RabbitMQ: Message acknowledged queue.orders
1m ago [ERROR] Gateway CORS policy violation from 192.168.1.1
Global Traffic Console

$ dotnet monitor --service identity-svc

[14:21:01] Listening on http://*:5000

[14:21:05] DB Connection Pool: 42/100 active

GET /v1/auth/validate 200 OK (12ms)

POST /v1/users/register 201 Created (145ms)

WARN: Redis latency spiked to 250ms

GET /v1/products/list 200 OK (8ms)

🧠

Engineering Positioning

All systems are built using C# and .NET Core with a focus on scalability, maintainability, and real-world business requirements.

🔥

Important Note

Final pricing depends on system complexity, number of users, and required integrations.