Syed Zaryab Haider
Verified Expert in Engineering
Software Engineer and Developer
Dubai, United Arab Emirates
Toptal member since December 11, 2025
Syed is an experienced software engineer with 9+ years in scalable enterprise systems, cloud-native architectures, and distributed applications. An expert in .NET, microservices, React, CI/CD, databases, and agile delivery, he has built REST APIs, AI-driven agents, and robust MCP services. Syed is focused on clean architecture, performance, maintainability, and delivering impactful, high-quality solutions through strong collaboration.
Portfolio
Experience
- APIs - 9 years
- SQL - 9 years
- C# - 9 years
- C#.NET - 9 years
- System Architecture Design - 8 years
- .NET Core - 8 years
- Azure DevOps - 7 years
- React - 3 years
Preferred Environment
Web, C#.NET, SQL, NoSQL, APIs, System Architecture Design, AI Integration, React, GraphQL, .NET Core
The most amazing...
...thing I've revamped is a legacy healthcare product that now features production-ready modern technologies, intuitive UI, and microservices architecture.
Work Experience
Senior Developer
Twoday
- Developed projects using C#/.NET for the back end and React for the front end, within an Azure DevOps environment.
- Worked on a mission-critical airline management system to streamline the operations of flights, resorts, passengers, and the scheduler to manage flight operations.
- Tracked, fixed, and delivered a tailor-made solution integrated with Business Central APIs.
- Oversaw the deployment and go-live of the operations in real-time to process 1,000s of passengers and staff operations to manage flight schedules in a streamlined way.
Senior Software Engineer
Punjab Safe Cities Authority
- Developed a fleet management solution to track the fleet of government vehicles, directly integrated with tracker devices, with real-time location and running diagnostics on vehicles.
- Designed system architecture, set coding practices, requirement analysis, and client meetings.
- Oversaw the deployed solution, which initially managed reports for approximately 150 vehicles and continued to expand.
Software Engineer
CureMD
- Revamped a 20-year-old continuously developed legacy technologies VB/ASP Classic application into a modern microservices-based architecture with modern UI and technology stack, i.e., .NET Core and Angular.
- Managed a team of eight business analysts, developers, and QAs to deliver a successful MVP for the revamped product. Introduced automated deployments, CI/CD, company-wide coding standards, and migration tools/utilities for data migration.
- Managed to deploy a marketplace for 3rd-party vendors to integrate their systems based on HIPAA compliance APIs standards.
Intern
Microsoft
- Learned and developed applications based on Microsoft technologies. Worked on C#/ASP.NET, Microsoft SQL Server, and desktop application development.
- Learned and developed apps using C#/.NET in conjunction with SQL Benefits.
- Worked on C#/ASP.NET, Microsoft SQL Server, and desktop application development.
Experience
Master Patient Index
Fast Healthcare Interoperability Resources (FHIR)
Monjasa Hub
Architectural Revamp
My core responsibilities included:
• Conducting R&D to identify optimal solutions for encountered challenges.
• Developing architectural design models.
• Creating database design models.
• Implementing standardized best practices for coding and design.
AI Document Intelligence & Validation
It is particularly useful for removing manual validation of document templates and using AI to score matching documents.
AI Assistant
Education
Bachelor's Degree in Computer Science
University of the Punjab - Lahore, Pakistan
Certifications
Microsoft Certified: Azure AI Fundamentals
Microsoft
Developing Solutions for Microsoft Azure (AZ-204)
Coursera
Skills
Libraries/APIs
REST APIs, React, Windows Forms (WinForms), jQuery, Graph API, Microsoft Authentication Library (MSAL), Claude API
Tools
Azure Logic Apps, xUnit, Auth0, Azure Active Directory B2C (ADB2C), Git, GitHub, AI SDK
Languages
C#.NET, SQL, GraphQL, C#, JavaScript, UML, TypeScript, CSS3, HTML5
Frameworks
.NET Core, .NET, OAuth 2, Blazor, ASP.NET, JSON Web Tokens (JWT), .NET 8, Angular, IdentityServer 4
Paradigms
Azure DevOps, Continuous Integration (CI), Continuous Deployment, Agile, Scrum, Service-oriented Architecture (SOA), Microservices, Fast Healthcare Interoperability Resources (FHIR), HL7 FHIR Standard, Model Context Protocol (MCP)
Platforms
Web, Windows Server, Azure Functions, Kubernetes, Docker, Azure, Amazon Web Services (AWS), Azure AI Search
Storage
Microsoft SQL Server, SQL Server 7, NoSQL, MongoDB, Azure Cloud Services, PostgreSQL
Industry Expertise
Healthcare
Other
APIs, Back-end Development, API Integration, Data Modeling, .NET 10, Single Sign-on (SSO), Authentication, Full-stack, Healthcare IT, Full-stack Development, Third-party APIs, .NET Framework, Database Schema Design, IIS, System Architecture, SaaS, Back-end, Azure Function App, System Architecture Design, Software Architecture, Windows Services, Microsoft Azure, Microsoft application insights, CI/CD Pipelines, Architecture, HMRC, Azure SSO, HIPAA, Artificial Intelligence (AI), AI Agents, AI Chatbots, Indexing, Multi-tenant SaaS, Performance Tuning, Customer Identity and Access Management (CIAM), Microsoft Entra External ID, Cloud Infrastructure, Performance Optimization, eCommerce, Agentic AI, AgentGPT, LLM Agents, Chatbots, Azure AI Document Intelligence, AI Model Integration, AI Integration, SDKs, Embedded Systems, Web Development, Agilex, API Design, RESTFul APIs, Identity, OAuth, OData, Azure AI Services, Azure AI Translator, Azure AI Bot Service, Microsoft Foundry, Azure AI Face Service, Integration, Third-party Integration, xneelo, LLM Integration
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