Андрей Крылов

I was working on a main product: chat-platform which connects customers from different communication systems (messengers, web, mobile apps) in one place: clients write questions in a chat - operators help them to solve their problems.

My responsibilities:

• Extension of chat-platform functionality: features implementation and documentation, code optimization, refactoring and bugfixing
• Code review, planning weekly sprints (scrum)
• Communication with companies-customers (Zoom / GoogleMeet), estimation of work costs, writing work specifications
• Week duty: consultation of managers and technical support on the technical aspects of the product
• In December 2021 I became a teamlead: supervised a team of 4 junior programmers

Achieved goals:

• Implemented integration with SAP CRM for MT Bank
• Extended functionality of integration with CROC AutoFAQ for hh.ru
• Implemented system of chats distribution by operators according to SL (Service Level) for Tele2
• Personal initiative: simplified the interaction of developers with XMPP integration by wrapping Mongooseim in Docker
• Motivated the company's management to document all features/bugfixes in Confluence, which had a positive impact on the speed of development/testing
• Completely rewrote the spellcheck service: optimized and expanded its functionality
• Multiple successful cases of codebase migrations: from Python2 to Python3 / from CPython to PyPy / from MySQL to PostgreSQL

Stack:

• Backend: Python, Tornado, AIOHTTP, SQLAlchemy/Alembic, PHP (lagacy), Nginx
• Frontend: JavaScript, TypeScript, Angular, jQuery, Marionette.js, Backbone.js
• Database: MySQL, PostgreSQL, ClickHouse
• Queues: RabbitMQ
• Monitoring: Zabbix
• Containers: Docker, Docker-Compose
• CI/CD: Jenkins, Make, custom rpm/deb-package builder
• Management: Jira, BitBucket, Confluence
• Other instruments: ElasticSearch, Mongooseim, Redis, Falcon