Although most of the time(80%) I write code, my duties also include management of a small team of developers (task definition, prioritization and assignment).Achievements: Tablet payment application(Android/Kotlin) that combines various payment methods: EMV (contact and contactless) and QR-codes. The application proves its quality every day while working on thousands of devices in the UK and Europe. Remote key loading server and client for secure delivery of cryptographic keys from banks to terminals.ISO 8583 Network host simulator(Python) - the tool that improves performance of the QA team Led company PCI DSS certificationBackend services for QR-based payment processing of various payment providersUsed technologies and tools: C#, Kotlin, Postgresql, SQLite, OpernSearch/ElasticSearch, RabbitMQ, Ktor

During my tenure at Holistic Technologies, I managed the development process from start to finish, ensuring all projects were executed efficiently and to the highest standards. Additionally, I dedicated 50% of my time to hands-on development work.Achievements: Me and team I worked with took part in the following projects:Created monitoring system: C# and MS SQL application with Angular frontend that helped support team with monitoring of key events Utility bill payments processing softwareCreated USSD (SMS menu) processing engine for virtual mobile operator DWH and reporting softwareSmart locks software design“BucksGo” (www.bucksgo.net)- backend software refactoringUsed technologies and tools: C++, C#, MS SQL

As a senior software developer, I progressed into a team leader role which also included project management responsibilities.Achievements:The Simplicity XFS ATM Simulator(https://abbrevia.com/) - a software solution that is commercially available to assist banks in testing new ATM software releases as well as debugging user-scenarios . It uses a virtual machine to simulate a wide range of industry-specific hardware, providing a comprehensive testing environment for banks. I am the author ^ISO 8583 Network Simulator tool - the commercially available tool that simulates any entity in the entire payment chain (banking hosts, POS-terminals, ATMs, payment schemes, contact and contactless cards) - participantUsed technologies and tools: C++, C#, MS SQL

Accomplishments:Contributed to the development of software for cash deposition machinesContributed to the development of software for automated parcel machinesDesigned software for NDC-compatible ATMsUtilized technologies and tools: C++, C#, MS SQL

Responsibilities:Manage core banking support teamManage core banking developing teamProjects:Core banking support, development and quality assuranceUsed technologies and tools: C#, C++, Oracle, Oracle forms, Jira

Responsibilities:Develop additional functionality for core banking systemDevelop tasks management application for internal useProjects:Task management applicationUsed technologies and tools: C#, C++, Oracle, MS SQL, Jira, SVN

Responsibilities:Implementation of EMV-based devices (testing and certification MTIP, ADVT)Develop softwareProjects:Wincor,NCR ATM ADVT and MTIP certificationVerifone, Ingenico, Cybernet POS-terminals MTIP and ADVT certificationApplication for terminal settings managementATM NDC sceneries editorUsed technologies and tools: Delphi, C++, Oracle, MS SQL, Perl

Responsibilities:Refactor and developing additional functionality of existing warehousing softwareProjects:Windows CE.Net software for warehouse automatization.Used technologies and tools: Delphi, C++, C#, MS SQL

Responsibilities:Teach programming languages

Responsibilities:Support regional treasury office accounting system Develop various supplementary utilitiesCreate various reports from MS SQL databaseUsed technologies and tools: Delphi, MS SQL