Stanislav Savitskii Email & Phone Number

Словакия

About a project"AhoyConnect" is a data analytics platform based on data that is coming from social networks (mainly).The project linkhttps://www.ahoyconnect.comShort overviewIn Ahoy I was working in a fast-paced environment with a strong focus on a goal.I worked closely with the Product team, Feature owners, Designers, and Customer success team.Responsibilities- developing the Backend API (GraphQL / Sinatra)- building new features- developing complex analytics engine- maintaining background workers for various integrations (Slack, Github, Discord, etc)- working as a weekly Triage person who is watching the project monitoring tools and bug-tracking channels to evaluate, prioritize and assign the resolution of defects based on severity, frequency, and risk (Datadog, Appsignal, OpsGenie)Main Stack used on a projectRuby / Sinatra / GraphQL / Postgres / Redis / Mongo / Sidekiq / Kubernates, AWS

Рандстад, Нидерланды

This was the "LabelDash" project - the platform to manage all the data related to the Music Label including Contracts, Releases, Tracks, Artists, Licensors, Publishers, Sales reports, etc.I was adding new features, introducing best practices, making improvements, and maintaining the existing code base.I improved the code base on a Backend and Frontend side, in particular - did the split of the frontend code into modules and increased test coverage of the backend.I added the CI layer with the branch auto-deployment based on Docker, Ansible, GitHub Actions.As the result, it deploys the PR to its own standalone subdomain with its own DB and Services if all tests/code style checks passed.I've built in TransferWise integration to make payments for Artists.Tech stack & keywordsrails 6, postgres, sidekiq, elasticsearch, chartjs, transferwise, sendgrid, clevertap

Соединенные Штаты Америки

I was developing backend APIs for mobile applications.Maintaining infrastructure scripts and services.We used Agile, Scrum, Kanban, TDD.I worked well independently and on a team to solve problems.Served as a friendly, hardworking, and punctual employee.Organized and prioritized work to complete assignments in a timely, efficient manner.Stack/Tools/ServicesRails, Rspec, Swagger, Postgres, Mysql, Sidekiq, ElasticSearch, AWS, Docker, PubNub, MailChimp, Twilio. Sentry, Skylight, Scout, New Relic.CI/CDJenkins, Ansible, Terraform, Packer, Docker.Projects/ClientsDollar Shave Club this is a unicorn company that delivers razors and other personal grooming products to customers by mail.I have been working as a contractor for about a year in total including on-site development in LA.I was working on core API, promotions API and big data migrations.A really big project with a bunch of services.Curago this is a family calendar.It was about two years of intensive development with a startup spirit.That was interesting how to deal with endless events chains.There were a lot of events and related notifications by email/sms/push. All notification types were covered with tests.Worked with dates a lot.I've done a big job with ElasticSearch and got/fixed a lot of heisenbugs related to data consistency and background workers.Load testing.ImageMagick performance testing and optimization.MedX this is a secure messenger for doctors.A lot of performance optimization and refactoring.I've tried a bunch of APM tools/approaches hunting memory leaks on that project.End-to-end encryption was used for messaging to provide security.We were using the PubNub service heavily to deliver messages.The full DB migration from a legacy DB/project to the new DB/project was done almost without a problem despite the logic changes and different implementations of the same features on both projects.

Greater Los Angeles Area

I was working onsight in LA core team as a contractor from Distillery company. This time I worked on the DSC API as a contractor for 3 months (onsight).In total, I was working in that company as a contractor for about a year (remotely).I was working on core API, promotions API and big data migrations.It is a really big project with a bunch of services.

Москва, Россия

Group­IB is one of the global leaders in preventing and investigating high­tech crimes andonline fraud. Since 2003, the company has been active in the field of computer forensics andinformation security, protecting the largest international companies against financial lossesand reputation risks.Projects:BOT­TREK TDShttp://www.group­ib.com/tds.htmlBot-Trek TDS enables effective network traffic control and cyber threat detection at the network level in real-time, based on Group-IB’s unique expertise and exclusive intelligence information.Responsibilities:● Back­end development (RoR)● Front­end development, layout, javascript● Upgrade project technologies● Rails servers managament● Automated Management for rails app and rails environment on remote servers withlocale environment (minimum internet access)● Application Deployment. Configuration Management. Continuous Deployment.● Working with event data● Display the graphs of statistics● Creating of complex reports in pdf format● Configuring role­based access control● Creating system for communication between company employees and admins● Background tasks● Interviewing developers● Selecting the candidates for the position of RoR developerSome details:In addition to the main Web application, I had the task of setting up the project on remoteservers, with an environment isolated from the Internet. Gems were stored locally in theproject.To implement this task, I used Ansible.In automatic mode was carried out:● environment configuration for Rails application● deployment of application● data import● code update● auto­launch for: ○ background tasks ○ services required for the Rails app ○ configuring automatic restart Rails application, background tasks and services after a reboot of the physical serverAlso on this project, I met with ElasticSearch.Upgrade project technologies:Rails3 ­> Rails4, Data Mapper ­> Active Record, Delayed job ­> Sidekiq, Html ­> Slim, CSS­> SASS.

Санкт-Петербург, Россия

Start­up development, elaboration of complex web­sites.Responsibilities:● Front­end development, layout, javascript● Back­end development (Ruby on Rails)● Rails servers managamentMost difficult project:iTransfers | itransfers.ruIt was a very difficult project. Many developers left the project during the course of work.There was a large slippage, poor code organization, a lot of bugs. The customer wasdissatisfied. Due to the formation of a new team in which I was, we strongly accelerated thepace, began to meet deadlines, fixed many bugs and brought the project to completion,leaving the customer finally satisfied with the result.Responsibilities:● Front­end development, layout + ton of javascript● Google maps integration, construction of routes, calculating distances● IFrame widgets for partnersIn this studio has been well established development process, I had excellent teachers, avery experienced and talented programmers, and good people. I am sincerely glad thatworked with them as a team.