Led a cross-functional team of developers in the design and implementation of a comprehensive communication portal for vendors, enabling seamless interactions with public, local, and international ICT vendors.Spearheaded the development of features providing the public sector entity with a comprehensive vendor overview, promoting transparency and fostering international collaborations.Designed and optimized the database architecture, ensuring data integrity and efficient data retrieval.Translated complex business requirements into clear technical specifications, facilitating efficient development processes.Collaborated closely with DevOps, business analysts, UI/UX designers, project managers, and product owners to ensure project execution and timely delivery.Worked closely with stakeholders to identify and address challenges and roadblocks, finding innovative solutions to complex problems.Assisted the QA team in testing efforts, contributing to robust quality assurance through the creation of comprehensive test scenarios.

Participating in the development of a Medical TPA Insurance solution which handles pre-approval requests and claim management of multiple insurance companies and integrates with GCC based health regulators. My responsibilities included:Participating in the design of the infrastructure based on the microservices architecture, designing several reusable services and tools including a custom pipeline framework which helps handling complex rule based business operations.Designing custom components for the Web application (Angular)Analyzing the requirements and creating multiple services based on business modules, this includes both web API and Frontend efforts.Leading the post-live support for the product aside implementing new features and enhancing the existing ones.

• Developing new modules at several enterprise solutions built using Java, Spring framework and hibernate, and flex on front end. Modules include pricing strategies for property management system and new recruitment module for HR system.• Integrating with third party APIs and handling 3rd party data processing in a multi-threaded and scheduled environment based on Spring Quartz & Spring schedule.• Building interface for medical instruments that communicate through serial connection and uses ASTM protocol.

Worked on T.ONE solution, a telecom solution which covers most of VOIP carrier business needs, including: billing, routing, analysis, and monitoring. The solution is multi-tier with hundreds of modules and is expanding frequently.My responsibilities and challenges I have experienced during my work included:* Developing new business modules: requirement analysis and design using best approaches of OOP.* Performance and memory enhancements for modules that work with large amounts of data and contain heavy querying and calculations.* Creating services (WCF and Web APIs).* Background tasks management and multi-threading.* Developing libraries for communication with VOIP switches via SSH and FTP protocols and parsing data files of different formats into unified format.* Reporting and dashboards using several charting and reporting tools (High Charts, Fusion Charts, Telerik charts and reports).* Creating OLAP cubes and querying over them.* Worked heavily on code by reflection.* Enhancement of long running business processes and converting them to workflows (WF).* Telerik controls and jquery controls.