Vladimir Y., Lead Java Software Engineer
B2 (Upper-Intermediate) English
Architect/Team-lead
Warsaw,
Poland
Summary
- Lead Java Engineer and Architect with extensive experience designing and implementing scalable, high-loaded solutions for cloud services and secure VPN connections.
- Proficient in Java (J2SE, J2EE), C#, Python, HTML, CSS, JavaScript, and Angular.
- Expertise in frameworks and technologies such as Spring Boot, Spring Framework, Servlets, REST web services, JUnit, Dropwizard, and EJB3.
- Skilled in building and maintaining CI/CD pipelines, deployment flows, and conducting deployments.
- Proficient in working with GCP and has experience with AWS and Azure.
- Experienced with databases and search technologies, including ElasticSearch, MongoDB, PostgreSQL, Derby SQL, Couchbase, and Google Cloud SQL.
- Strong capability in requirements analysis, documentation creation, and customer communication.
- Proven leadership in mentoring and guiding junior developers and leading development teams.
Main Skills
Programming Languages
Scala Frameworks
Scala Libraries and Tools
UI Frameworks, Libraries, and Browsers
Java Libraries and Tools
Mobile Frameworks and Libraries
Java Frameworks
PHP Libraries and Tools
PHP Frameworks
Databases & Management Systems / ORM
Cloud Platforms, Services & Computing
Amazon Web Services
Azure Cloud Services
Google Cloud Platform
Message/Queue/Task Brokers
Web/App Servers, Middleware
QA, Test Automation, Security
Third Party Tools / IDEs / SDK / Services
Version Control
iOS Libraries and Tools
Operating Systems
SDK / API and Integrations
Deployment, CI/CD & Administration
Collaboration, Task & Issue Tracking
Methodologies, Paradigms and Patterns
Mail / Network Protocols / Data transfer
Virtualization, Containers and Orchestration
Platforms
Other Technical Skills
Experience
Lead Software Engineer / Architect
July 2016 – now
Description: High-loaded solution for cloud backups of cloud services like Office 365, G Suite, Salesforce, Box
Responsibilities:
- Software development
- Scalable system architecture design
- Design specification creation
- Performance analysis
- Bug fixing
- Unit testing
- Code review
- DAOs
- Building deployment flow (CI/CD procedures)
- Conducting deployment
- Requirements analysis
- Creating documentation
- Communicating with customer
- Leading and mentoring junior developers.
Technologies: Java (J2SE 8), C#, Python, HTML+CSS+JS+Angular
Spring Boot, Spring Framework, Servlets, REST web services, JUnit 4/5, Dropwizard
Environment: AWS, ElasticSearch, MongoDB, PostgreSQL, ActiveMQ, RabbitMQ, Kafka, Jenkins, Maven, Git
Senior Software Engineer / Lead Software Engineer
May 2018 – May 2019
Description: Private Betting platform for closed betting club
Responsibilities:
- Leading and mentoring a team of developers
- System architecture design
- Design specification creation
- Requirements specification and creating granular tasks for developers
- Performance analysis
- Bug fixing
- Code review
- Building deployment flow (CI/CD procedures)
- Conducting deployment.
Technologies: Java (Java 12), HTML+CSS+JS, Spring Boot 2, Spring Core, Spring Thymeleaf, Spring Security, Spring Data, REST web services, WebSocket, JUnit 5
Environment: GCP, MongoDB, Jenkins, Twilio, Maven, Git
Senior Software Engineer
December 2018 – May 2019
Description: nVPN service is called to provide a secure and private connection within a public network
Responsibilities:
- Development of a desktop application
- Performance analysis
- Performance optimizations
- System architecture redesign
- Requirements specification and creating granular tasks for developers
- Code review
Technologies: Java SE 8, Java FX 8, EJB3, REST web services, JDBC, NoSQL, Junit, log4j, Gson, GeoIP services.
Environment: Azure, Java FX Application, Derby SQL, OpenVPN, Maven, Git
Software Engineer
January 2016 – August 2016
Description: Worldwide live scores and free push notifications. Standings, Fixtures, Top Scorers, Stats.
Responsibilities:
- Software development
- Bug fixing
- Unit testing
- DAOs
- Deployment
- Documentation
- Communicating with customers.
Technologies: Java (J2SE, J2EE7), PHP, EJB3, Servlets, REST web services, JDBC, NoSQL, Junit, Google Cloud Services, APNS, GCM
Environment: Google App Engine, Google Cloud SQL, Google Cloud Storage, MySQL, Jenkins, Maven, Git
Software Engineer
August 2015 – August 2016
Description: nVPN service is called to provide a secure and private connection within a public network
Responsibilities: Development of desktop client for comfortable VPN connection operation; performance analysis and optimizations; software development and design; unit testing; manual testing; deployment; bug fixing; code review.
Technologies: Java SE 8, Java FX 8, EJB3, REST web services, JDBC, NoSQL, Junit, log4j, Gson, GeoIP services.
Environment: AWS, Java FX Application, Derby SQL, OpenVPN, Maven, Git
Software Engineer
May 2015 – March 2016
Description: This project is to create a cross-platform desktop client application and server-side application for handling genetic data uploads of arbitrary size.
Responsibilities: System architecture design, development of a highly secure, scalable, and fault-tolerant desktop client for transferring big files, performance analysis and optimizations, design, unit testing, manual testing, deployment, bug fixing, and code review.
Technologies: Java SE 8, Java FX 8, EJB3, Spring Framework, Guava, REST web services, JDBC, NoSQL, Junit, log4j, Gson, compression libraries.
Environment: Java FX Application, HikariCP, Derby SQL, HsqlDB, EhCache, Maven, Git Azure, auto-provisioning of Azure nodes for data processing.
Software Engineer
December 2015 – March 2016
Description: Slotomania is the number one free slots game in the world. Social video slots casino.
Responsibilities: Software development, bug fixing, unit testing, DAOs, deployment, documentation creation, and customer communication.
Technologies: Java (J2SE, J2EE7), EJB3, Servlets, REST web services, Spring Framework, Kafka JMS, JDBC, NoSQL, Junit, Akka
Environment: Tomcat 7/8, Couchbase 1.8/2.0, MySQL, Kafka, Facebook Graph API, Maven, Git, Team City
Software Engineer
April 2014 – December 2015
Description: Virtual, play-for-fun casino game with video slots, roulette, and blackjack options. Caesars Casino is an online social game owned by Caesars Interactive Entertainment, Inc.
Responsibilities: Software development, bug fixing, unit testing, DAOs, deployment, documentation creation, and communication with customers.
Technologies: Java (J2SE, J2EE7), EJB3, Servlets, REST web services, Spring Framework, Kafka JMS, JDBC, NoSQL, Git, Junit, Akka
Environment: Tomcat 7/8, Couchbase 1.8/2.0, MySQL, Kafka, Facebook Graph API, Maven, Git, Team City
Software Engineer
September 2013 – January 2014
Description: Cloud notification service development for Android/iOS push message delivery
Responsibilities: Software development, bug fixing, unit testing, DAOs, deployment, and documentation.
Technologies: Java (J2SE, J2EE6), EJB3, CDI, REST web services, JMS, NoSQL, JUnit, Jackson, APNS, GCM, Apache Solr, MS SQL Server
Environment: JBoss EAP 6.1, Cassandra, Infinispan, Tibco, RHEL 6.x, Maven, SVN, Jenkins, HP Fortify
Software Engineer
May 2012 – March 2014
Description: Backend development for a high-loaded online trading game.
Responsibilities: Software development, bug fixing, unit testing, parsers, DAO’s.
Technologies: Java (J2SE, J2EE6), EJB3, CDI, Servlets, REST web services, JMS, JDBC, NoSQL, algortims and extensive data structures usage (AVL-trees, RB-trees), SVN
Environment: TomEE 1.6, Couchbase 1.8/2.0, Netty 3.6, EHCache 2.6, PostgreSQL 9.2, ActiveMQ 5.x, RHEL 6.x, Amazon EC2, S3, Facebook Graph API, Maven, SVN, Jenkins
Software engineer
November 2009 – May 2011
Description: Internet resource for reading Anime and manga.
Responsibilities: System architecture design, software development, design, functional testing, unit testing, and documentation creation.
Technologies: PHP, SQL, HTML, Javascript, jQuery, CSS3, Bootstrap, AJAX, XML, Cron.
Environment: Apache HTTP Server, MySQL 4, Git, Campfire
Software engineer
May 2010 – November 2010
Description: Internet resource for sharing useful information and communication between students.
Responsibilities: System architecture design, software development, design, functional testing, unit testing, and documentation creation.
Technologies: PHP, HTML, XML, XSLT, CSS2, SSL, SQL, AJAX, Smarty templating engine, DLE.
Environment: Apache HTTP Server, MySQL 4, Git
Education
Vinnytsia National Technical University, M.S. in Automatics and computer-controlled systems
2014
Vinnytsia National Technical University, B.S. in Automatics and computer-controlled systems
2013