MD Rezaul Karim KHAN
Mechanicsburg,PA
Summary
Senior Solutions Architect & AI Researcher specializing in Secure-by-Design cloud infrastructure and AI-Enabled Science. Combines 15+ years of experience in modernizing critical financial and healthcare systems with cutting-edge research in Frontier Deep Learning models for oncology. Proven expert in building scalable, secure architectures for national-level entities (Deloitte clients), directly addressing U.S. strategic priorities in Critical Infrastructure Cybersecurity and Biosecurity. Committed to advancing U.S. technological dominance by developing automated, AI-driven diagnostic tools that reduce clinical burden and enhance national health resilience.
Overview
18
18
years of professional experience
1
1
Certification
Work History
.Net Developer
Sigma Resources LLC
Mechanicsburg, PA
09.2024 - Current
- Clients: Deloitte
- Developed robust backend services with ASP.NET Core, C#, REST APIs and Oracle, replacing legacy systems and improving performance by 40% within 7 months.
- Integrated Snowflake as a central data store for analytics and used ADF to automate secure data, ingestion, transformation, and loading for financial and audit reporting.
- Enhanced system scalability by 60% within 9 months through the implementation of DDD, SAGA Pattern, and CQRS methodologies, resulting in improved performance.
- Conducted system analysis, reengineering, and documentation to improve efficiency.
Chief Technology Officer
Inovexia Ltd
Dhaka, Bangladesh
11.2020 - 12.2022
- Defined and executed the company's technology strategy, leading the development of cutting-edge healthcare solutions—including EMR, RIS (PACS), and LIS—leveraging ASP.NET Core Microservices, C# 9.0, Azure SQL, and HL7 to achieve a 40% improvement in system efficiency.
- Directed front-end modernization efforts by integrating Angular and other JavaScript frameworks, resulting in a 25% increase in user engagement and improved patient-facing interfaces.
- Championed the adoption of modern software architecture, applying Domain-Driven Design (DDD) and CQRS to ensure long-term scalability, maintainability, and system resilience.
- Oversaw cloud-native solution design using Azure Logic Apps, Functions, Cosmos DB, and API Management to ensure secure, interoperable, and high-availability systems.
- Provided technical leadership across all development phases, proactively identifying and resolving complex issues to enhance system stability and performance.
- Built and mentored a high-performing development team, establishing coding standards, promoting agile best practices, and supporting career development through active coaching.
- Ensured timely and efficient project delivery by implementing Agile/Scrum methodologies, aligning technology initiatives with business goals, and maintaining stakeholder engagement throughout development cycles.
Chief Technology Officer
Amber Software Solutions Ltd
Dhaka, Bangladesh
12.2016 - 10.2020
- Led the development of cloud-based EMR, PACS, and LIS systems that improved healthcare delivery across Bangladesh, enhancing system efficiency by 40% and reducing patient wait times by 30%.
- Designed scalable, interoperable health IT solutions using ASP.NET Core, HL7, and Azure cloud tools—supporting national efforts to modernize clinical infrastructure and public health reporting.
- Built and grew a high-performing technical team (from 20 to 100+), and reached profitability within 18 months through sustainable licensing models.
- Enabled digital transformation in underserved and rural clinics, directly contributing to better patient outcomes and nationwide health data standardization.
- Oversaw the full stack development of an international product (www.chefonline.co.uk) for the UK market, collaborating with Amber IT Ltd. Built RESTful APIs, WPF-based EPOS solutions using C#, MS SQL Server, and AWS Services, which led to a 25% boost in system performance and scalability.
- Architected and deployed hybrid cloud infrastructure using Azure and AWS for seamless integration, high availability, and data management across distributed systems.
- Established DevOps pipelines and CI/CD workflows, enabling automated deployments, testing, and faster delivery cycles across enterprise applications.
- Mentored engineering teams, championing clean architecture, coding standards, and modern design patterns to ensure high-quality deliverables and long-term platform sustainability.
Sr. Software Engineer
Amber Software Solutions Ltd
Dhaka, Bangladesh
07.2012 - 11.2016
- Worked within a team to build Manufacturing ERP suite covering essential modules like Sales, Distribution, HR & Payroll, Accounting, MIS, Purchase, LC Management and Supplier portal using ASP.NET MVC, C# version 4.0, Oracle, Telerik Control and Telerik Reporting tool.
- Developed and maintained a Retail POS using C# version 6.0, .NET 4.5 resulting in a 40% increase in performance and scalability.
- Transitioned product platform from MySQL to Microsoft SQL Server Database, which enhanced overall software development processes and reliability.
- Developed scalable and maintainable code, ensuring long-term stability of the software.
Software Engineer
United IT Solution Ltd
Dhaka, Bangladesh
01.2008 - 06.2012
- Converted a VB.Net and ASP.net Web Form Micro-Finance Management Software to ASP.NET MVC, C#, MS SQL Server, incorporating Telerik Control and Telerik Reporting tool, boosting efficiency by 40% and scalability, catering to 200,000 members with integrated MIS, Accounts Module, and HR modules.
- Worked within a team to build a Web based Accounting System using ASP.NET Web Form, C#, MS SQL Server, Telerik Control and Telerik Reporting tool resulting in a 25% increase in performance and scalability.
- Transformed the VB.Net Desktop Application Warehouse Management System (WMS) to ASP.NET Web Form C# and MS SQL achieving a 4x speed boost, 67% code reduction.
- Performed end-to-end implementation of services.
- Implemented effective debugging strategies, resulting in fewer software defects and increased reliability.
- Consistently met project deadlines by effectively managing time and prioritizing tasks according to importance.
- Analyzed proposed technical solutions based on customer requirements.
Education
Master of Science - Computer Science
Maharishi International University
12.2025
Bachelor of Science - Computer Science & Engineering
Khulna University
12.2007
Skills
- C#
- JavaScript
- TypeScript
- NET Core
- ASPNET Core
- NET MVC
- NET Framework 45
- WPF
- ADONet
- Entity Framework Core
- Angular
- MS SQL
- SSIS
- MySQL
- PostgreSQL
- T-SQL
- PL/SQL
- MongoDB
- Cosmos DB
- AWS
- Azure
- Serverless Computing
- Cloud Native
- Azure DevOps
- Azure AD
- VM
- Functions
- Storage
- DNS
- ADF
- SQL Database
- Event Grid
- Storage Queue
- Service Bus
- Monitor
- Resource Manager
- API Management
- Key Vault
- Visual Studio (2008~2022)
- Visual Studio Code
- IntelliJ IDEA
- Postman
- Jenkins
- Jira
- SVN
- Git
- TFS (Team Foundation System)
- REST Client
- IIS
- Kestrel
- Strategy
- Factory
- Command
- Observer
- Template
- Micro-frontend
- MVP
- MVVM
- Microservices
- Event Driven Development
- SAGA
- Circuit Breaker
- CQRS
- HTML5
- CSS3
- Bootstrap
- Blazor
- JQuery
- Telerik Controls
- Telerik Reporting
- RadControl
- RESTful APIs
- RabbitMQ
- Web API
- XML
- SOAP
- Webhook
- XAML
- Agile
- Scrum
- Kanban
- HL7
- DICOM
Research And Scientific Contributions
AI-Enabled Science & Biosecurity (Oncology & Neurological Diagnostics), Breast Cancer Segmentation and Detection Using U-net With Ultrasound Dataset, Developed automated computer vision models to enhance diagnostic precision, aligning with national initiatives to reduce cancer mortality., Machine Learning for Breast Cancer Classification: A Comparative Study..., Evaluated algorithm stability to ensure reliable deployment in clinical settings., Fusion-Based Hybrid Meta-Learning... for Cardiovascular Disease Prediction, Leveraging AutoML to automate disease forecasting.
Google Scholar Profile
https://scholar.google.com/citations?user=bqYC6kEAAAAJ&hl=en
Certification
- AZ-104: Azure Administrator Associate
- AI-102: Azure AI Engineer Associate
- AZ-204: Azure Developer Associate
- AZ-400: DevOps Engineer Expert
- AZ-305: Azure Solutions Architect Expert
Research
- Breast Cancer Segmentation and Detection Using U-net With Ultrasound Dataset
- Machine Learning for Breast Cancer Classification: A Comparative Study of Grid Search-Optimized SVM, Random Forest, and XGBoost
- Fusion-Based Hybrid Meta-Learning: Enhancing Cardiovascular Disease Prediction with AutoML and Explainable AI
- Data Fusion of Semantic and Depth Information in the Context of Object Detection
- A Comprehensive Review on the Advancement of Home Automation System
- Hybrid Recommendation Systems using Adaptive Clustering to address Cold start problems
- Blockchain-Based Food Traceability System to Ensure Food Security in Bangladesh
Timeline
.Net Developer
Sigma Resources LLC
09.2024 - Current
Chief Technology Officer
Inovexia Ltd
11.2020 - 12.2022
Chief Technology Officer
Amber Software Solutions Ltd
12.2016 - 10.2020
Sr. Software Engineer
Amber Software Solutions Ltd
07.2012 - 11.2016
Software Engineer
United IT Solution Ltd
01.2008 - 06.2012
Master of Science - Computer Science
Maharishi International University
Bachelor of Science - Computer Science & Engineering
Khulna University