Currently I'm working with my own startup with my team. Our project (http://promo.hamster.pro/) it's a SMM tool for easy communicate with social networks auditory. 

What I have done as a developer: 

• Created and maintained infrastructure (VPS, monitoring and
  alerting tools, backups e.t.c.)
• Built architecture
• Implemented system metrics collection and monitoring with
  InfluxDB + Grafana
• Organized deployment process with Codeship and deployer.org
• Researched new technologies
• Organised a development workflow
• Wrote a lot of code for communicate with Instagram social
  network

Day-to-day duties:​ work with users tickets, write and review code,
monitoring of project health (grafana, papertrailapp.com, sentry.io), do
scrum calls and planning sprints/backlog.

Used technologies:​ PSR standarts, DesignPatterns, PHP 7, Git, InfluxDB, Grafana, Docker, MySQL, Gearman, Redis, Bash, Yii2, Jira

4xxi - it's a big experienced company having depth understanding of finance, education and medicine industries and working with clients around the world.

I worked with large fintech and education startups as a backend developer inside big international team. 

What I did:

• wrote and support robust back-end REST API servers based on Symfony and Amazon infrastructure
• Integration with huge numbers of APIs
• participated in code reviews
• wrote unit tests using phpunit
• creating continuous-delivery environment using Codeship
• communicate with external teams

Used technologies: PSR standarts, DesignPatterns, Symfony, Docker, ElasticSearch, MongoDB, RabbitMQ, Redis, AmazonSQS, Memcache, PHPUnit, Git, Unix, PostgreSQL.

Fotostrana is an actively growing social entertainment network.

I work towards target advertising. At the moment this service, covering over a million users a day. Engaged in the development and support of this direction. Participated in development of some internal services of website.

http://embria.com/companies/#fotostrana

Used technologies: Apache, Nginx, Shared queue, Redis, Memcache, PHPUnit, Git, Unix, MySQL.

Development of web sites and services based on such languages as PHP and RUBY. Client-side optimization. Administration and monitoring of VPS (about 100 sites, debian). Support and completion of existing and development of new projects. Development of the CMS to RoR for new projects. Git workflow. During the work I created a lot of data parsers based on NodeJS, phantomJs, NoSQL.