Maksym Ratoshniuk

Phone number: +380(66) 761-1288

Email: [email protected]

Skype ID: mratoshniuk

GitHub profile: https://github.com/mratoshniuk

LinkedIn profile: www.linkedin.com/in/maksym-ratoshniuk

EMPLOYMENT

PlayQ / Backend Engineer

December  2016 - today

Kyiv, UA

• Designing and developing high-scalability micro services system for cooperating and controlling game devices, handling, and processing game events and make immediately appropriate responses.
• Using company's own framework built on Akka and Google Guice (particularly contributor). 
• Refactoring a monolith architecture into microservices 
• Configuring environment orchestration tool Azuki as an alternative for Kubernetes;
• Developing microservice for sending notification between devices with using third party services Aero Gear and One Signal.
• Replace Vertica DB with Amazon’s Redshift + Kafka for working on with analytics;
• Refactoring and tests coating;
• Designing backend part for web application toolkit written on Golang for DevOps and administrators; 
• Providing services for working with microservices’ REST API;
• Designing and extending custom Golang MVC Framework;
• Designing a module for working with CRON Task Scheduler and AWS Batch;
• Technologies: Golang, Scala, Akka Http Netty, Python, .NET, Cassandra, PostgreSQL, Vertica, Click House, One Signal, Zookeeper, Kafka, Google Guice, Google Guava, Scalaz, Shapeless, Docker, Azuki, Kubernetes, AWS Batch, AWS Redshift;

Canyon Capital / Java and Scala Developer

July 2016 - October 2016

Kyiv, UA

• Developed a messenger Android application (both backend and client parts)
• Android application development - implement interaction with server (sending and fetching the data)
• Backend part: migrating Java code from Spring framework to Akka Http.
  Designing asynchronous data transferring between users’ devices via Akka Actors.
• Technologies: Dagger 2, Retrofit 2,  RxJava, Java 8, Spring MVC, Neo4j Graph DB, Scala,  FSM, Akka.

Instant Translate / Android Developer

May 2016 - June 2016

Remotely

• Developed an Android Translator, working with Bing and Google APIs
• Technologies: Retrofit, RxJava, Google API, Bing API, Material Design.

Nova Poshta / Android Developer

March 2016 - May 2016

Remotely

• Developed 1 commercial application  “Plannary Mobile”
• Duties: interaction with the server, development of an interface with manipulating with maps and tracking between delivery targets for daily routes.
• Technologies: Java, Maps API, Retrofit 

EDUCATION

NTUU KPI “Kyiv Polytechnic Institute” / Bachelor’s in Software Engineering

Fall 2014 - Present

Kyiv, Ukraine

Undergraduate Coursework: Algorithms and Data Structures; Calculus; Coding Theory; Computer Logic; Databases; Discrete Mathematics; Discrete Structures; Empirical Methods of Software Engineering; Information Theory; Linear Algebra and Geometry; Operating Systems; Parallel Programming; Probability Theory and Statistics; Programming Languages; 

TECHNICAL EXPERIENCE

Ukrainian Unified Corrupt registry / Course projects 

Server source code

General web-site for keeping track of corrupt officials in Ukraine.
Technologies: Java 8, Spring MVC, Hibernate, HTML, JS, CSS,  MySQL.

Come Around / Open Source

Client                Server

Own project, the main idea of which is unique system for creating and tracking meeting and events nearby and see friends location.

Technologies:  Java, Dagger 2, Retrofit, RxJava, Neo4j, Docker, MySQL, Spring Framework, Redis;

ADDITIONAL EXPERIENCE AND AWARDS

1. FCE certificate (2014): certificate of English proficiency (B2).
2. Zhytomyr Mathematics Competition (2012, 2014) : 1st  
3. Minor Academy of Sciences of Ukraine (2014, Mathematics):  3rd 
4. Participating in the development of online university campus 

INDEPENDENT COURSEWORK

• Machine Learning by Stanford at Coursera. Certificate earned on 2, February;
• Functional Programming Principles in Scala by EPFL at Coursera;
• Functional Programming Design in Scala;
• Parallel Programming in Scala;
• Nanodegree Android Course by Google at Udacity;

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LANGUAGES AND

TECHNOLOGIES

• C/C++, Java, Scala, R, Python, Golang, C#;
• Akka HTTP, Android, Play, Spring, Django, Lagom;
  Reactive Extensions: RxJava / RxAndroid, Retrofit 2, Akka Streams;
• Scikit-learn, Pandas, Matlab, Octave;
• Databases: MySQL, PostgreSQL, MongoDB, Redis, Neo4J, Cassandra, Vertica, ClickHouse, ElasticSearch, Kibana, Redshift; 
• Additional: Dagger 2, Google Guice, Vim, Git, Atlassian, Zookeeper, Kafka, OneSignal, Aero Gear,  Hadoop, Spark,  Azuki, Docker, Kubernetes, TeamCity;