Experience

Sanjagh - سنجاق

• Iran
• Advertising Services
• 1 - 100 Employee

• Scala Software Engineer

  • Mar 2021 - Present

  ◦ Develop REST APIs using Scala, Akka, S3, and MongoDB. ◦ Develop REST APIs using Scala, Akka, S3, and MongoDB.



Dotin

• Iran
• Financial Services
• 700 & Above Employee

• Senior Software Engineer and Release Manager

  • Jan 2018 - Mar 2021

  ◦ Restructured legacy payment switch by changing its model, queries, and source codes to be scalable, work as a multi-instance application, and increase its performance for achieving up to 5 milliseconds response time.◦ Collaborated in developing a new version of payment switch to support more than 2000 simultaneous transactions.◦ Designed the Third Party Gateway (TPG) project architecture, as a fully reactive application, which is responsible to call more than 5 third-party web services that payment switch may call them.◦ Implemented the TPG project with Spring Boot, Spring JMS integrated with ActiveMQ, Spring Data integrated with Oracle database and Spring WebFlux technologies. Created the project scalable to respond to more than 1.5 million requests per second.◦ Achieved online archiving transactions by modifying database structure and using Oracle Database partitioning ability.◦ Integrated 4 existing payment switch sources for different customers into one source that can be customized for all customers which significantly reduced maintenance costs.

• Software Engineer

  • Oct 2015 - Dec 2017

  ◦ Built robust Java code for payment switch and user interface of payment switch.◦ Reduced numbers of database queries by more than 40% and Increased transaction capacity by up to 30% with refactoring the payment switch data model.◦ Collaborated with the automatic test team in the first steps to set up an automatic Integration test for payment switch.◦ Deployed source codes on production servers from different branches after reviewed pull requests using Git and Jenkins features, as a Release Manager of the team.◦ Worked closely with Internet Protocol Gateway (IPG) and Card Management System (CMS) team members to design and develop robust solutions to meet customers’ requirements for functionality, scalability, and performance.◦ Participated as an architect, designer, and developer for more than 6 simulators.