– Accompanied the project – Developed several new features to expand functionality (range auto–scanning, shutdown timer, background mode, support for a new user interface, etc.) – Developed support for an external display with and without touch keys (including the development of architecture and design of the upper and lower levels) - Consulted with the customer on design and technical issues features of the application (was on a business trip to the USA, Chicago, Motorola Inc., for three months)

– Highlighted the structure of data storage in the database (Django ORM) – Performed integration and data collection from the API of various CRM systems (https://www.yclients.com , https://joinposter.com/en ) saved in the database (requests, ratelimit) – Developed SQL queries to represent the collected data in a form convenient for performing RFM analysis – Created a user interface in the form of a web page with separate personal accounts to start data collection and save the results as an xls file (HTML, CSS, Django template language, forms, xlsxwriter) – Created an administrative page for managing users and their data (django.contrib.admin) – Published a ready-made project on the Heroku platform

– Set up the development environment (linter, formatter, closed repository in GitHub, pre-commit hook in git using husky, etc.) - Defined the structure of the project divided into features – Created a set of hooks for interacting with the REST API backend (React Query 4.2) – Developed navigation and screen components (React Navigation 6.x) – Developed a component of the youtube movie trailer player (React Native Youtube-iframe 2.2) - Developed a component of movie posters with caching of uploaded images – Developed a component of the scheme of cinema halls with free and occupied seats with the ability to zoom and swipe the scheme (@openspacelabs/react-native-zoomable-view). – Integrated with the payment gateway via their API and WebView

– Developed several dozen custom scripts: calculators, modal windows, automatic actions after page loading, etc. (JavaScript, jQuery, HTML, CSS) – Designed several custom pages and elements according to the designer's layouts in Figma, for example, the main menu in the form of hexagons with adaptability: https://safeko.ru/ (HTML, CSS, SVG)

– Organized the development process in the team, tracking tasks, and planning sprints. Organized a code review and implemented the necessary tools. He implemented some Agile and Scrum practices – He collected requirements from customer representatives and set tasks, organized interaction with related customer services and departments (DevOps, round–the-clock technical support line) - Participated in decision-making on architecture development together with the tech-lead – Conducted interviews when recruiting new employees, conducted primary documentation of the company, controlled accounting and reporting to government agencies – Integrated the system with various equipment (container scales, traffic lights, a running line, barcode scanners, etc.) as a developer - Integrated the system with other 1C–based systems, CRM systems of clients, systems of government agencies (SOAP API), etc . – Performed code review, performed error analysis and elimination, and participated in the development of other components of the system

– Developed about a hundred system modules for both Desktop client and web client using tables, diagrams, reports, etc. (WinForms, DevExpress Data Grids, Charts, Reports, PDF Viewer, ASP.NET Web Forms, ASP.NET Grids etc.) – Participated in the organization of the development process (introduction of inspection practices code management, defect management, etc.) – Performed code refactoring (including highlighting the hierarchy of base classes of various types of modules, database queries, creating template functions)