Sergey Vasilyev

Developed an ecosystem (frameworks, toolkits, CLIs/UIs, infrastructure, guidelines, documentation, etc) for integration- & performance- & endurance- & stress-testing of the cloud (IaaS), used by the QA engineers & developers to test their components of the cloud, and the cloud as a whole from the customer point of view. Lead a team of 2 Python developers, plus a workgroup of QA engineers from different teams in order to utilize the developed toolkits and to achieve the higher level of QA automation.

Maintaining and improving the infrastructure and the tools for QA automation, including hypervisors, virtual machines provisioners, task schedulers, results gathering and aggregation (ElasticSearch, Kibana, Django, Hyper-V & ESX, in-house solutions, etc). Deployed the monitoring system for the QA infrastructure (Zabbix). Developed few long-haul & stress tests for the cloud products (Docker & co, Amazon AWS, Locust).

Refactored the whole infrastructure of both web portal and office infrastructures. Moved most of the infrastructure from ancient collocated servers to rented modern servers, thus reducing monthly hosting bill by approximately 40-50% and long-term TCO by 50-70%. Did all the things regarding software development (see below for Head of Development Department): system design, infrastructure and platform services, control of the development, etc.

Managed a department of front-end, back-end, database developers & QA. Increased the department from 8 to 27+ employees. Built the processes to work in a distributed team. Proposed and initially implemented significant refactoring of the system architecture for scalability, code flexibility & maintainability (SOA, Thrift, etc). Controlled the development in 5-7 teams. Directly managed some of the company’s projects: mobile applications, data crawling, intranet CMS, infrastructure services.

Lead a team of 3 Python developers: task management and prioritization, features and milestones planning, control of deadlines, consultations and advices for architectural solutions. Team works on back-office admin applications and on real estate data mining system. Developed few prototype real estate applications and services for Nokia mobile phones.

Designed (from scratch) a back-office system for automated data mining of third-party real estate data sources. Implemented this system with Python 2.6 as a framework with few automated entry points, and an extensible Python-based DSL for data normalisation and validation. Developed approximately 10 back-office admin applications and front-office widgets. Supported and improved approximately 10-15 applications of other developers. Python 2.6 & Django 1.1 & Django 1.2 later.

Developed a core framework for a dating app with PHP 5.3: database and cache abstraction layers, Cacheable Object-Relational Mapping (ORM), transaction coordination over the shards and caches, access control lists and other components. Developed conceptual database schemes with horizontal and vertical sharding, MySQL 5. Wrote comprehensive technical documentation.

Developed studio’s content management system (CMS), conceptual schemes of data models for each project, universal content-handling tools (typographic and similar). Built server and client sides of sites with use of this CMS, and their comprehensive third-party integration solutions. Everything was made with PHP 5 and MySQL 5.

Developed own Content Management System (CMS): based on PHP 5 with OOP, MySQL 5 with transactions, and XML+DOM+XSLT as template engine. Used this CMS in few web-sites (www.doy306.ru, www.digart.ru). Developed automated system for tracking of personnel migration: business-logic is in MySQL stored procedures, XML/DOM for data manipulating and XSLT for template handling, PHP only as a controller.

Developed network and server monitoring tools, billing maintenance scripts. Administered ISP servers (FreeBSD). Built and managed an ISP help desk: technical consulting by phone, email and in the office. Created and applied routines and procedures for coordination of network maintenance personnel.

Majored in Distributed Automated Systems.