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ARRIVAL is a technology company that creates Generation 2 Electric Vehicles. As Platform Lead I am responsible for the development of all public web products of the company.Responsibilities:- Lead 3-5 development teams and build teams from scratch.- Organize development, deployment, and release processes, as well as define systems and platform architecture.- Develop products such as Drivers App, Fleet Management Portal, Fleet Simulation, Central API, Developer Portal, Identity Management System, and Main Company website, among others.- Develop a Mobility Platform as a core and basis for other products of the company.- Collaborate with cross-functional teams to ensure timely delivery of high-quality products.Technologies used:- Java, Typescript, and Javascript; NestJS and SpringBoot; Kubernetes, Docker; Kafka, Postgres, and Elasticsearch; AWS (ECR, EKS, SES, SNS, and S3); Teamcity and Jira.In this role, I have successfully led multiple development teams to deliver high-quality web products. Additionally, I have gained expertise in various technologies and tools, including Typescript, Kubernetes, among others.

Traction Monsters is an international cybersport platform (startup).Responsibilities:- Team building from scratch- Development department management (Web, Mobile)- Product development with LEAN startup methodology- System architecture- Full-stack development, code review, system administration- Defining the technical and product roadmapAchievements:- MVP version released in few months- Viral features and fast development solutions allowed to increase DAU and retention level over 30%- Quick hypothesis testingTechnologies:GoLang, PHP, Yii2; REST API; Postgresql, Memcahced; Ansible; AWS (EC2, S3, SQS, SES, CloudFront); Postfix; Supervisor; Nginx;Instruments:Jira, GitHub, Vagrant, Sentry, Slack, Zeplin.

ONDOC is an innovative medical startup that empowers individuals to take control of their health through a range of self-monitoring tools, telemedicine consultations, and online check-in services for clinics. As a key member of the team, I played a pivotal role in enhancing the company's operations and achieving significant milestones.Responsibilities:- Team building- Development department management (Web, iOS, Android, QA teams, 12 members)- Budget planning, execution and optimization- Technology stack decisions, system architecture building- Information security management: firewall, intrusion detection and prevention systems, antivirus protection and software vulnerabilities scanning- Building a fault-tolerant architecture, implementation of a logging and monitoring system- Defining the technical and product roadmap- Interaction with key partners and customers- Backend development, code review, system administrationAchievements:- Passed certification for requirements compliance of users personal data storage (like EU GDPR). This allowed the company to attract large customers and achieve self-sufficiency- Introduced SCRUM methodology for development and management teams.- Developed android application from scratch in few months. It increased the sales more than 2 times.Technologies:PHP, Symfony3; Beanstalk, ZeroMQ; Percona XtraDB Cluster, ElasticSearch, Memcahced; REST API; Ansible; Graylog2; Zabbix; OpenVAS; SEP, Ceph; ESXi; Cisco ASA; Posfix; Supervisor; Nginx;Tools:Jira, Confluence, Teamcity, GitHub, Sentry, Vagrant, Slack, Zeplin.

ClickAdu is a premium ad network. Pop-under advertising network for web and mobile channels with excellent expertise, unique capabilities and experience in revenue maximization for publishers and advertisers.Responsibilities:- Team building- Full-stack development - High-load optimization- Legitimacy traffic checking - Big data aggregation by different splits- Incident analysis and resolutions- Internal CRM-system and analysis instruments development- Working by Kanban methodologyAchievements:- Improved advert engine performance- Improved SLA level between development and sales departmentsTechnologies:HTML, JS, PHP; Yii, Yii2, AngularJS; Go; MySQL Percona, Vertica, ElasticSearch; HaProxy; Graylog 2; Nagios; Nginx;Instruments:Jira, Confluence, GitHub, Docker, Slack.

Alol is online cashback service and business messenger (startup).Responsibilities:- Team building and management (15 members)- Design and development of service-oriented architecture- Development of bank exchange protocols- Integration with SMS-gateways via SMPP- Code-style, git-flow и code-review implementation- Normalization of deploy cycle: develop > stage > productionAchievements:- Passed PCI DSS Compliant certification. This allowed to integrate bank-card processing and store user credit card data- Code base successfully sold and used by "Ulmart" store (large online shop).Technologies:PHP; PostgreSQL, PGBouncer, Redis, Couchbase, ElasticSearch, Memcached; Graylog2; Kannel (SMTP Gate); RabbitMQ (Queues, RPC); REST API, SOA (Micro Services); WebSockets; Protobuf; Ansible; Zabbix; Supervisor;Instruments: Jira, Confluence, GitLab, GitLab CI, Vagrant, Skype.

Full-stack web development, mobile development.Technologies: HTML, CSS, JS, LESS, SASS, Obj C, Java, PHP; Yii, Yii2, Symfony2, RoR, Postgres, Mysql, Redis, Memcached.

Geniroom is an online video-streaming platform.Responsibilities:- Team leading and management (6 members)- System architecture- Full-stack development (main web-site, CRM-system, CDN-server)- Implement public REST APIAchievements:- Career from developer to lead developerTechnologies:HTML, CSS, JS, PHP; REST API; Java; MongoDb, Postgres; Varnish; Apache2, Nginx; Wowza Media Server; Memcached; FFmpeg;Instruments: Eclipse; Redmine; GitHub;

Media-Com is a web studio.Responsibilities:- Corporate sites development- CMS developmentTechnologies:PHP, CSS, HTML, JS, jQuery, SVN.