Shimul Kumar Saha Email & Phone Number

Vejle, South Denmark, Denmark

✓ Integrating payment systems Stripe, AsiaPay, QuickPay, CheckoutDotCom etc. into the webshop/e-commerce system implemented in Java, Oracle, Vue/NuxtJS.✓ Implemented bank reconciliations for the payment systems with the Compiere ERP/CMS system.✓ Implemented XML eInvoicing using JTE (Java Template Engine).✓ Implemented Typesense for searching products in the e-commerce webshop.✓ Gitlab, IntelliJ, Ubuntu

Dhaka, Bangladesh

✓ Developed an API layer on top of CBS (Core Banking System) using Apache Camel, JAX-RS, JPA/Hibernate and PL/SQL that enables customers to integrate any 3rd Party systems with CBS using REST and/or SOAP API styles.✓ Led a team of developers in the General Banking (GB) section of the CBS.✓ Migrated CBS codebase from SVN (Subversion) to Gitlab, and used Liquibase for the database change management process.✓ Used WSO2 API Gateway in front of the CBS API Layer to manage authentication, request routing and transformation.✓ Built a small native headless program for Windows using Quarkus framework to integrate MICR Cheque Machine with CBS.

Dhaka, Bangladesh

✓ Customized critical parts of CBS i.e. Balance calculation, Inter branch transaction handling etc. to enhance predictability and maintainability thereby eliminated customer support calls completely in those areas.✓ Took part in upgrading the technology stack of the CBS platform from JDK 5 to JDK 8, EJB 1.2 to EJB 3, and JBoss EAP 4 to EAP 7.✓ Migrated the build process of CBS from Ant to Maven.✓ Lead a small team to do PoC on migrating the front-end tenchology layer of CBS from JSF to Vue.js.✓ Did a PoC on implementing application log aggregation using ELK stack and log4plsql utility.✓ Managed a team of developers in terms of work assignments, progress monitoring, code reviewing and design/implement the solution.

Dhaka, Bangladesh

✓ Took part in implementing Core Banking Solution (CBS) in two largest state owned commercial banks of Bangladesh.✓ Involved in every phases of the implementation process right from migrating data from old/legacy systems to new systems, communicating with the customers and stakeholders to gather and clarify requirements, customizing the software accordingly and tuning the performance of the application processes.✓ Participated in domain and technical training sessions on CBS arranged in customer places and overseas as well.✓ Refactored CBS codes extensively, both at Java and PL/SQL level, to make it more robust, maintainable and performant, thereby achieved greater reliability in production environment, increased customer happiness and reduced support efforts.✓ Took part heavily in optimizing the batch jobs (EoD - End of Day) of CBS at the PL/SQL level by applying best practices of the language and Oracle database to reduce the execution time and memory consumption of the processes to a large extent.✓ Improved the development process by introducing REDMINE issue tracking system and configuring the Eclipse IDE with the CBS codebase so that the turn around time of fixing bugs is reduced.✓ Provided production support as and when issues are raised by customers in the ticket portal.

Dhaka, Bangladesh

✓ Played a role of Java Developer in a Scrum team that was responsible for implementing various features in Varnish Administration Console ( https://www.varnish-software.com/vac/ ) - a GWT (Google Web Toolkit) based web application to manage Varnish Cache Clusters.✓ Involved in implementation of showing different kinds of time‐series data (i.e. hit rate, miss rate, request vs connection rate etc.) from Varnish Cache clusters by way of real time Highcharts charts for which the data is being pushed over a WebSocket connection from a server side Round Robin Datastore (RRD), drag ‘n drop facility in configuring the clusters of Varnish caches using technologies such as GQuery - a jQuery wrapper library for GWT, Highlighting Syntax of Varnish Configuration Language (VCL) using ACE ( https://ace.c9.io/ ) JavaScript library, and overall leveraged various technologies around GWT such as mvp4g (Model‐View‐Presenter library for GWT), Guice, Morphia and MongoDB in a development environment based on Eclipse, Git, JIRA and Linux.✓ Participated in Sprint planning, Retrospective sessions, and giving Demonstrations to the Product Owner in every alternate Sprints.

Dhaka, Bangladesh

✓ Customized the JSF-Spring-Hibernate based Mobile Financial Platform (Macalla Platform) of Roamware Inc, India (now, Mobileum) with regard to implementing various m-wallet based transactional workflows like top-ups (including cross-border through TransferTo Gateway), mobile/utility bill payments, integrating channels like SMS, USSD, Telco’s proprietary EAI system, 3rd party payment (MiGS VISA, MasterCard) and merchant systems, prepaid and postpaid billing systems. Used CVS as the SCM, and TargetProcess as the project management tool.✓ Provided training on this Mobile Financial Platform to a newly formed development and support team of Roamware Inc. office in Bangalore, India.✓ Worked on a team to develop GKPIS (Grameen Kalyan Patient Information System) web portal for Mayo Clinic, USA, to manage diagnosis information for hookworm and roundworm affected patients by using (X/)HTML, JSP, Servlet, Tomcat, JSTL, Hibernate & MySQL technologies.

Dhaka, Bangladesh

✓ Worked on a B2B Integration product called AGETOR from Fifttwo A/S, Denmark (https://www.fiftytwo.com), erstwhile Bording Data Ltd, by adding and enhancing its various constituent components leveraging technologies like MyFaces, Hibernate, VFS, XSLT, STX, JAXP etc. ✓ Involved in bug-fixing and enhancing the components of AGETOR's License Management System web portal and CLI client made of JSF, Hibernate and Axis2. ✓ Worked also on AGETOR Configuration Workbench, a plugin based desktop application built on Eclipse platform (JFace/SWT) to manage the configuration of AGETOR installations. ✓ Made contributions to AGETOR's JSPWiki based Wiki documentation as well.

Dhaka, Bangladesh

✓ Worked on a proprietary framework called IFF (InterFactory Framework, Interfactory, Japan) closely related to Struts to develop a matrimonial site with also using other technologies like JavaScript, AJAX, CSS, SVN (Subversion) and MySQL.