Summary

Overview

Work history

Education

Skills

REFERENCES

INTERESTS

Accomplishments

Timeline

Hassan Sabry Abdul Bary

Leicester,UK

Summary

Experienced software developer with expertise in backend technologies including .Net Framework, .NET 8, 9 , 10, .NET Core, C#, and microservices architecture. Proficient in cloud platforms such as AWS and Azure DevOps, with a strong focus on CI/CD pipelines and Agile methodologies. Skilled in web development using ASP.NET MVC, Angular, and SignalR, alongside database management with SQL Server and Oracle. Demonstrates advanced knowledge of multithreading, asynchronous programming, and software performance tuning. Adept at integrating security measures like JWT authentication and image-based fraud detection into systems architecture. Committed to leveraging adaptive learning to embrace emerging technologies while delivering high-performance solutions tailored to business needs.

Overview

years of professional experience

Work history

Senior .NET Consultant / Freelance Developer

Self-Employed (Client: Parseq / Checkprint)

2024.11 - 2026.06

- Strategic Continuity: Retained by Checkprint (following acquisition by Parseq) to lead critical maintenance and feature enhancements for high-security banking and retail systems.
- API Architecture: Architecting and implementing high-throughput RESTful API endpoints using .NET 8 and MediatR for the Mobile Technician App (MTA).
- Performance Optimization: Utilizing Dapper and SQL Server to optimize database interactions, ensuring system stability for large-scale retail clients.
- Quality Assurance: Leading unit and integration testing initiatives using Rhino Mocks to maintain zero-regression standards in production environments.

Senior Software Developer

Checkprint Limited (Acquired by Parseq)

2015.04 - 2024.10

- Patent Innovation: Invented and patented (P02014GB) a unique UCN(ISF) security feature for cheque fraud detection, now a standard for all major UK banks.
- Cloud Migration: Led the end-to-end migration of core banking integration systems (UBS) for Barclays Bank (India & UAE) to AWS cloud (RDS, EC2, Load Balancers).
- Legacy Modernization: Spearheaded the digital transformation of a legacy VB6 application into a modern ASP.NET MVC architecture involving 130+ forms, 10 modules, and 85+ classes.
- Mobile Development: Developed cross-platform applications using MAUI and Xamarin for real-time verification of secure document images.
- Banking Integration: Engineered the integration between CheckMate API and Allied Irish Bank (AIB) teller systems using JNI Bridge and C#.
- Documentation: Developed comprehensive user manuals and HTML help files (MSDN Style) for enterprise windows and web applications using Help Smith.

Senior .NET Developer

PAK UK TV LTD / Prime Global Communications

2010.09 - 2014.08

- Developed a web-based Client Management System using ASP.NET, C#, and Crystal Reports.
- Architected an LCR (Least Cost Routing) management system for telecommunications using C# and SQL Server.
- Managed enterprise systems including mail servers (MS Exchange 2003) and reporting systems for ECT telephony switches.
- Launched PrimeTalk telephony services in partnership with Gradwell Ltd, managing IP PBX facilities and wholesale airtime services.

Software Developer / Web Designer

Xtec Communications Ltd

2005.02 - 2010.04

- Leadership: Managed the Commerce Department with a team of 4 staff, overseeing wholesale calling card platforms in the UK, Germany, and Spain.
- Fintech Development: Developed "Call Center Plus" and the Xtec Retail System using VB6, C#.NET, and SQL Server 2000.
- E-commerce: Built and maintained the U2Call.com e-commerce portal using PHP, MySQL, and JavaScript.