Haider Ali Chaudhary

Senior Software Engineer with 11+ years of experience designing and modernizing enterprise-grade software solutions across public safety, financial services, and retail technology domains.

Currently contributing to Saudi Arabia's 911 emergency response platform, helping build mission-critical systems supporting emergency operations across the Makkah region.

.NET 8 • C# • Microservices • RabbitMQ • AWS • SQL Server • OAuth • REST APIs

What I Do

Mission-Critical Systems

Designing and supporting high-availability emergency response platforms, real-time incident management systems, and public safety solutions requiring maximum reliability and performance.

Enterprise Integrations

Integrating government agencies, GIS services, authentication platforms, SMS gateways, tracking systems, and enterprise applications through secure APIs and middleware services.

Enterprise Software Engineering

Building scalable enterprise applications using C#, .NET, SQL Server, REST APIs, and modern software engineering practices.

Cloud & AWS Solutions

Deploying and managing enterprise workloads on AWS, including cloud infrastructure, IIS hosting, SSL configuration, and environment optimization.

Microservices Architecture

Modernizing legacy systems into scalable microservices platforms using .NET Core, RabbitMQ, API Gateways, and event-driven architecture.

Database Engineering

Designing, optimizing, and tuning SQL Server databases, stored procedures, indexing strategies, and high-volume transactional systems.

Retail & eCommerce Platforms

Founder of a Retail Management System (RMS) platform supporting POS, inventory management, reporting, customer management, and Shopify integrations.

Authentication & API Security

Designing OAuth-based authentication services, token management systems, API security layers, and secure inter-service communication.

Professional References

Organizations & Platforms

Resume

11+ Years of Experience

Education

2007-2012
COMSATS Institute of Information Technology, Pakistan

Bachelor of Computer Science

Built a strong foundation in Software Engineering, Databases, Data Structures, Networking, and Enterprise Application Development.

Experience

2017 – Present
911 Emergency Response Platform

Senior Software Engineer

Hexagon Safety & Infrastructure (2017–2020) | Atheeb Integrated Solutions Company (2020–Present)

Architecting, developing, and modernizing Intergraph Computer-Aided Dispatch (I/CAD) software for Saudi Arabia's 911 emergency response platform, supporting mission-critical public safety operations and emergency response services across the Makkah region.

Leading enterprise integration development across multiple government and emergency response platforms, including Saudi Red Crescent Authority (SRCA) Ambulance Dispatch, National Information Center (NIC) Caller Information, Vehicle & GIS Services, National Center for Security Operations (NCSO) Emergency Communications, Central Incident Database (CID), Milestone Video Management System (VMS), and Advanced Mobile Location (AML) services. Designed and implemented secure real-time data exchange mechanisms enabling interoperability between critical public safety systems.

Designing and delivering scalable .NET-based enterprise solutions, RESTful APIs, OAuth authentication services, ISM interfaces, real-time GIS tracking solutions, business intelligence dashboards, centralized logging platforms, and high-volume SQL Server optimization strategies supporting 24/7 emergency operations. Contributed to CAD workflow modernization, multi-threaded SMS scheduling services, automated reporting platforms, database performance tuning, and large-scale archival and purging initiatives involving over 100 million operational records.

Collaborating with cross-functional engineering teams across Saudi Arabia and USA to deliver highly available, secure, and resilient public safety platforms while ensuring operational continuity, scalability, regulatory compliance, and mission-critical system reliability.

2014 - 2017
Argaam

Software Engineer

Developed and enhanced enterprise Financial Technology (FinTech) Argaam platform, real-time market data solutions, and high-traffic web applications serving investors, analysts, financial institutions, and business professionals throughout the GCC region. Contributed to the development of market intelligence platforms, investment research services, and financial reporting systems delivering real-time business and market insights.

Designed and implemented scalable ASP.NET and SQL Server based solutions supporting stock market information, company financial data, news aggregation, reporting services, and enterprise data processing workflows. Participated in application architecture, database optimization, performance tuning, and system integration initiatives to ensure reliability and scalability across business-critical platforms.

Collaborated with product owners, business stakeholders, and engineering teams to translate complex financial and business requirements into robust software solutions. Contributed to the continuous enhancement of Argaam's digital platforms, helping strengthen its position as one of the leading providers of financial information, market intelligence, and investment research services in the GCC region.

2012 - Present
Retail Management System (RMS)

Founder & Product Owner

Founder and Product Owner of a Retail Management System (RMS) supporting POS, Inventory Management, Promotions, Loyalty Programs, and eCommerce operations. Leading the platform's modernization through Microservices Architecture, RabbitMQ messaging, and cloud-native technologies. Designed bi-directional Shopify integrations for real-time synchronization of products, inventory, customers, and orders, while implementing OpenAI-powered image generation workflows to automate eCommerce catalog and content creation. Shopify APIs support such integrations and RabbitMQ is commonly used for reliable microservice communication.

Backend & Enterprise Development

C#

95%

.NET Framework

95%

.NET Core / .NET 8

95%

ASP.NET MVC

100%

REST APIs

95%

Enterprise Integrations

95%

Architecture & Integration

Microservices Architecture

90%

Event-Driven Architecture

75%

RabbitMQ

60%

YARP API Gateway

95%

OAuth / Authentication

95%

Webhooks

60%

Database & Performance

SQL Server

95%

Database Design

95%

Performance Tuning

85%

T-SQL & Stored Procedures

95%

MySQL

75%

Oracle

30%

Cloud & Infrastructure

AWS

85%

IIS Hosting

95%

Windows Server

80%

SSL / HTTPS

75%

VMware

95%

Frontend Technologies

Angular

80%

Typescript

80%

JavaScript/JQuery

95%

Html/Css/Bootstrap

80%

Portfolio

My Works
Media Project 2

911 Emergency Response Platform

Public Safety
Media Project 2

Argaam Financial Portal

Financial Services
Media Project 2

Retail Management System (RMS)

eCommerce

Contact

Get in Touch

+966-553743479

Saudi Arabia

haideralichoudhary@gmail.com

Freelance Available

How Can I Help You?