Main tasks: - Development of a new project from scratch. - Enhancement of existing code with new functionality. - Redesign of graphical elements. - Migration of projects to new technologies and versions. - Maintenance of existing code. - Troubleshooting and issue resolution. - Support for production systems. Project https://periodika.lv/ (Java frontend and C# backend) Development: • Development of new features for end-users and portal administrators. Migrating: • Migration of back-end code for the API from .NET Framework to .NET Core Enhancement: • Redesign and refactor the user interface • Reviewing the design, code, and test results logs • Planning and moving to Production modified versions of software Support and maintenance: • Performance analysis, bottleneck elimination, and server response speed improvement. • Analyzing existing code to identify bugs and errors, as well as determining the root causes of application malfunction. Other: • Production and integration new product components • Training new colleagues Environment front-end: Java 17, GWT, Gradle, PostgreSQL, Apache Tomcat 9, Apache Solr 8, GitLab, Java VisualVM Environment back-end: C#,.NET Framework, ASP.NET 8, gRPC Project https://data.gov.lv/ (Python, CKAN) Development: • Development of new extensions for end-users and portal administrators. • Development java cli applications Migrating: • Migration from CKAN 7 to CKAN 9 (incl. Python extensions and user interface from Pylons to Flask) Enhancement: • Redesign and refactor the user interface • Reviewing the design, code, and test results logs • Planning and moving to Production modified versions of software Support and maintenance: • Performance analysis, bottleneck elimination, and server response speed improvement. • Analyzing existing code to identify bugs and errors, as well as determining the root causes of application malfunction. Other: • Production and integration new product components Environment: Python 3.9, Java 11, CKAN 9, PostgreSQL, Redis, Apache Solr 8, Oracle Linux 8, Postfix Project https://huntgate.app/ (Laravel 9) Development: • Development of the backend for the mobile application. Integration of third-party services and AWS S3. Aligning the application with the requirements of the Play Store and the Apple Store. Support and maintenance: • Performance analysis, bottleneck elimination, and server response speed improvement. • Analyzing existing code to identify bugs and errors, as well as determining the root causes of application malfunction. • Planning and moving to Production modified versions of software Environment: Laravel 9, AWS S3, PostgreSQL, Postfix, Redis

Maintenance and Enhancement of the next projects and applications: Entitled Systems Support (ESS), Features on Demand (FoD), Storage Encryption, IP-protection, Inventory, IBM Digital Market. Development of the TPM Certificates for Power9 machines application. Development: · TPM Certificates for IBM Power9 machines application · Entitled Systems Support (ESS) (development new functions for the Hybrid Cloud; development new functions for the ePools 2.0: Start a new Pool, Add credits to existing codes, Digital Capacity for internal usage; development new functions for the Codes-on-Demand initiative (Digital Market): Purchase new Elastic days, Generate new Elastic codes, View and Download existing codes; development Inventory functions) Enhancement: · Storage Encryption application: new features, refactoring code · Entitled Systems Support (ESS): web-application redesign accordingly with the current corporate style, refactoring and upgrading code · Macro and Micro design, coding · Reviewing the design, code, and test results logs · Planning and moving to Production modified versions of software Support and maintenance: · Features on Demand (FoD). Support FoD application as a part of the business migration to Lenovo. · Testing, problem analysis and fixing Other: · Production and integration new product components · Training new colleagues Environment: Java and frameworks: Java 1.4/6-8 (IBM SDK), Java 11, Java EE 7-8 (incl. EJB 3), Jakarta 9, Spring/Spring Boot, IBM WebSphere MQ, IBM WebSphere Application Server 8.5, Maven Database: IBM DB2 Microservices: REST microservices (IBM WebSphere Liberty / Microprofile, Docker / Podman) Testing: JUnit 4, Selenium Others: IBM Cloud (ex. IBM Softlayer and IBM Bluemix), Jenkins, REXX, mainframe environment (z/OS, Unix on mainframe, DB2 database) Front End: Angular (TypeScript), IBM Carbon design, Node.Js, JSP (Vanilla JavaScript, jQuery, HTML5, CSS, Ajax)

Project: Automatic process-control systems (APCS). Responsibilities: Full stack development, bug fix, support. Development of Automatic process-control systems (APCS) that accumulate information about all equipment of telephone network of Belarus and information about clients of Beltelecom. Some functions were ported from Informix 4GL project. Environment: Java SE 6/7, Apache Tomcat, Spring, Apache Struts 1.3, Servlets, JSP, EL (expression language), JSTL, HTML, CSS, XML, JSON, JavaScript, jQuery, AJAX, SQL, Log4J, SVN, Jira

Project: Automatic process-control systems (APCS). Responsibilities: Full stack development, bug fix, support. Automatic process-control systems (APCS) that accumulate information about all faults of equipment (cables, boxes, telephone, automatic station etc.) on the network. Environment: Delphi 7, Borland Database Engine, ODBC, SQL, Informix Dynamic Server

Project: Automatic process-control systems (APCS). Responsibilities: Full stack development, bug fix, support. Automatic process-control systems (APCS) that accumulate information about all equipment of telephone network of Belarus and all information about clients of Beltelecom. Environment: SCO Unix, Informix Dynamic Server, Informix 4GL, SQL

Факультет телекоммуникаций, Инженер по телекоммуникациям