Extending Tanzu Kubernetes-oriented software with multi-cloud capabilities, writing Kubernetes operators in Golang, building highly cohesive secure services.Work as a consultant on projects for the world’s leading companies from various industries from start-ups and retail to military and space.Plan client's software portfolio transformation from both technical and business perspectives, use a goal-oriented data-driven approach to identify and then execute the best course of action.Use automated tools to assess the applications and recommend the best improvement strategy, e.g. lift-and-shift cloud migration, modernization, security issue mitigation, new development, functionality expansionWork together with client engineers to deliver innovation and coach them to adopt best practices and use efficient tools. I promote Extreme Programming, TTD, and balanced teamwork. I turned many client teams into productive, satisfied, outcome-oriented engineers striving for high code quality.Build reliable and fast release automations. add security checks, promote DevOps culture, and use Infrastructure as a Service technique to automate every step of software promotion.Work on cloud and on-premise infrastructures, work on classified environments, build DevOps pipelines for air gap networks, and utilize data diode solutions.Technologies: Java, Go, Kubernetes, Azure, AWS, GCP, AKS, EKS, docker, Kotlin, React, Python, .Net, SQL databases, MongoDB, GraphQL, Redis, Kafka, Apache MQ, IBM MQ, SaaS, CI/CD, micro-services, Kubernetes operators, OAuth 2.0, gRPC, REST, SOAPFrameworks, Libraries and Tools: Spring, SpringBoot, JUnit, Mockito, iText, jQuery, TAP, TAS, TKG, PCF, minikube, TensorFlow, Triton Inference Server, Git, Terraform, Helm, Azure DevOps, Jenkins, GitHub Actions, GitLab, Concourse CI, Circle CI, SonarQube, OWASP Scanner, Prometheus, Datadog, Dynatrace, Grafana, Splunk, Kibana, Logstash, Tableau

Build cloud-native software and modernize existing applications to turn them into reliable and maintainable solutions. Together with our clients, we identify their business outcomes and focus on building software that archives their goals. We build secure software solutions and utilize DevOps practices and cloud-native technologies, effective tools. As a hands-on solutions architect, I design and code different application components.While working on a project, I teach engineers to pair programming, XP methodology, TDD, balanced team approach. I enable clients to have faster idea-to-market turnover and increase the quality of deliverer solutions.See Applications and Technologies above (VMware Tanzu Labs job)

River Meadow offers a cloud migration solution that supports various public and private clouds and can migration different operation systems.I am working on extending front-end and Java back-end components of the system with new functionality. I work with a product owner and other Agile team members to design and develop new feature as well as refactor current functionality.Applications and technologies used:Technologies: Java 1.7/1.8, Spring, Spring Boot, Spring MVC, WebServices, Spring Data, Cassandra No-SQL DB, Apache Solr, JUnit, JMockFront-End Frameworks and Libraries: jQuery, backbone, underscore.js, ES6, RequireJS, Handlebars, Ajax Source Control and tools: IntelliJ, Git, Jenkins, maven, npm, grunt, karma, PhantomJS

Leading Transformation of Software Development department, responsible for the architecture of our solutions. I plan and oversee implementations of new projects and lead innovative transformations of the existing applications.I have planned and lead number of initiatives with the main objective to elevate development practices to a new level of productivity, security and application stability to meet industry standards and growing business demands. Introduced Git, created front-end development environments, utilized BitBucket Cloud, created build automation and automatic deploy to Google Cloud, introduced Docker for development and other non-production needs, utilized Azure cloud services.Planned software upgrade path to increase environments utilization and reduce cost of ownership.Being responsible for application security, I performed various security scans, planned and lead vulnerabilities remediation work for java source code and open source library. Performed JDK upgrade for our major applications, implemented Maven for secure and predictable dependency management and reliable builds.Introduced DevOps practices and started work towards build and deploy automation using Docker and cloud services.Introducing software development best practices, coding standards, etc. Building necessary prototypes and proofs-of-concept to migrate to newer technologies and use up-to-date development approaches. Mentoring developers and DevOps specialist, giving hands-on help when needed.Applications and technologies used:Technologies: Java 1.8, Apache Solr, gcp, Google App Engine, docker, SASS, react, CI/CD, micro-services, Aerobatic, IBM Directory Server, OpenLDAP, SonarQube, SonaType DepShield, CVE Database, IBM IHS, Oracle, MS SQLFrameworks and Libraries: jQuery, Ajax, Velocity, Handlebars, Struts, Apache Tiles, JUnit, Mockito, spring, spring boot, iText Source Control and tools: Eclipse, RAD, Bamboo, Jenkins, npm, gulp, babel, Selenium IDE

Planning and leading development of a number of software solutions for company clients. I am hands-on in Java, PHP and front-end technologies and server/cloud configuration.For every project I had to ensure feasibility and profitability of the solutions, develop systems that are technically sound and fit into a bigger picture of client capabilities and needs. I worked as a trusted technical advisor for our clients, offered optimal solutions with maximum value. Using Agile methodology, we often revaluated business objectives of the projects and adjusted scope of work. For most of the projects I performed the following activities: requirements clarification, technology research, solution design, making/gathering estimations, analyze alternatives, select technologies and frameworks, develop application architecture, plan the implementation, develop proof-of-consents and working prototypes, create technical presentations for the clients and company executives, lead development, working along with the team, validated unit test coverage and code quality, mentoring team members. As the final activity, learned from the completed project to improve K2 Digital technology stack and processes.Our clients range from established business to startups in mainly banking, financials, retail, insurance, and medical verticals. We used Scrum, follow DevOps best practices, automate-everything. I was a Scrum Master for some projects.Java (JDK 1.8), J2EE, Portlets (JSR-286), Spring, Spring MVC, SpringBoot, RESTful services, JAX-WS, AspectJ, Servlets, Hibernate, JPA, TTD, JUnit, Mockito, ElasticSearch, Apache Solr, Docker, maven, grunt, gulp, npm, bower, CordovaPHP, Drupal, WordPress, node.js, Angular, jasmine, mocha, Selenium WebDriverDatabases and Web/App Servers: MySQL, Oracle, MS SQL, H2, hSQL, cache libraries, Tomcat, IBM WebSphere Portal 8.0 and 8.5, WCM, AWS, Liferay, WAS, Mule (ESB), UML, JMetterAngularJS, LESS/Sass, Handlebars, IntelliJ, RAD, jQuery, Ajax, bootstrap

Designing and developing integration between existing company applications, web services, Java Portal servers and Alphinat SmartGuide web-interface framework.Designing web-tier of the case management system application, developed SOA architecture for integrating different company web-applications.Leading development of public user-facing java portal applications, preparing technical documentation, organize trainings for developers and customers, coaching and mentoring developers and business analysts.Designing and managing SOAP web services development.Facing client teams on highly technical discussion, analyzing requirements and creating competitive solution architectures that meet client scope and boundaries.

This start-up company developed mobile product and deals exchange network with built-in suggestion engine and user ranking mechanism. The application was deployed into a cloud as resilient SaaS application with shared noSQL (MongoDB) database and Solr full text search engine.I was leading development of company main project, managed cross-functional technical team. I participated in shaping a vision of the solutions and then translated it to the system design and bringing to the engineers.I have designed application architecture and major software components, planned, implemented and maintained development and production cloud environments.Applications and technologies used:J2EE, Spring, JSP, Servlets, JAX-RC, JUnit , JSTL, JAXB, JPA Hibernate, REST, JAX-RX, Morphia (ORM), Lucene, Apache Solr.Databases: mongoDB, MySQL H2Web/App Servers: Apache, nginx, Tomcat, Client/Web Frameworks: Ajax, jQuery, jQuery UI, ext-js, prototype, CSS3, Spring, Spring MVCProduction environments: Ubuntu, CentOS, Amazon EC2, S3, Rackspace Cloud, JMeterPrototyping software: Axure, MS Visio, MagicDraw, PowerDesignerSource Control: Git Development is done using TDD and Agile methodologies

Responsible for solutions implementation, planned and led development of various customer projects. Analyzed requirements and created system architecture, investigated possible implementation approaches and analyzed challenges, estimated the work.Hired and managed several distributed teams of 5-20 people. One of our projects was Web-Deva – modular web-application with extensive data model and modern Web 2.0 user interface. This PCI compliant application has set of integration to different payment providers and built-in security model.Applications and technologies used:J2EE, JSP, Servlets, JAX-RC, JAX-WS, JUnit , JSTL, JAXB, JPA Hibernate, REST, JAX-RX, Morphia (ORM), Lucene, Solr, Cassandra, DWR, JMX, CruiseControl, Ruby on Rails, JRuby, DJango Databases: mongoDB, MySQL, PostgreSQL, H2, sqlite3, Apache HadoopWeb/App Servers: Apache, nginx, Mongrel, Tomcat, GlassFish , JBoss, ResinClient/Web Frameworks: Ajax, jQuery, jQuery UI, ext-js, prototype, CSS3, Stripes, Spring, DWR, StrutsProduction environments: Ubuntu, Red Hat, Solaris, CentOS, AWS EC2, AWS S3, Rackspace Cloud, memcached, TerracottaTesting Tools: Selenium, Rational Functional Tester, TestComplete, JMeterPrototyping software: Axure, MS Visio, MagicDraw, PowerDesignerSource Control: SVN, Git, VSS, CVSDevelopment is done using TDD and Agile methodologies

Redesign of a complex high-load J2EE SaaS application into a distributed clustered system. Built new server infrastructure and optimizing data storage. Significantly improved performance of highly-loaded highly-concurrent application with a large database. Was responsible for design, development and integration for data solution platform. http://www.keysurvey.com, http://form.comPerforming research of cutting edge-technologies, conducting trainings and best-practice standards for developers.Managing and leading development team with 10-16 members. Applications and technologies used:Java (JDK 1.5, JSP, Struts, Servlets, JSTL, Concurrency, GC optimization, JSTL, Hibernate, Stripes, JMS, RMI, Guice), regEx, Ajax, Tomcat, JBoss, WebSphere, ANT, web services, Automation Testing tools, optimization and loading tools, MagicDraw, PowerDesignerDatabase: MySQL, Oracle, BD2, MS SQL . Performance Tuning: jConsole, OptimizeIt Profiler, jOptimizerDevelopment was done using Agile methodologies with some Extreme Programming practices.

Developed a complex application for checking and correcting PDF files for accurate printing. Participated in a highly efficient team that utilized Extreme Programming development process.Applications and technologies used:Java (JDK 1.1 and 1.4-1.5, Swing, JSP, Servlets, JSTL, Struts, JUnit, ANTLR, OJB, Tomcat, Velocity, ANT) Supported platforms: Windows, Linux, MacOS 9, MacOS XDatabase: Postgres and DaffOdil (over Object/Relational mapping)

Developed a client and server parts of application for monitoring, software upgrade and SNMP management of Cable Modems Plants https://www.promptlink.com/products/cmtp.htmlApplications and technologies used:Java (JDK 1.3-1.4, AWT, Swing, Servlets, JDBC, JavaBeans, JavaCC, PSE Pro, WEB Start, XML/XSL technology). Application server bases on Jakarta/Apache TomcatDatabase: GEM (Original Object-Oriented database)

Developed web services for popular Internet Portal. Designed and developed algorithms for Private Banner Network and proprietary Search system. Developed unique customization algorithms, design database and web application to present personalized web-site content, implemented tight integration with other portal services.Applications and technologies used: Java (Servlet and JSP), PerlUtilized Oracle 9g, designed database structure and developed stored procedureDesigned web pages using DTML, HTML, CSS, JavaScriptRun applications on JServ, Resin, Oracle Application Server.

Designed and developed original algorithms for the sites Gala.Net, GalaLove, GalaFoto.Developed personalized web-pages myGala, designed data management algorithms for news and links, management of photos, weather, horoscopes, user personalization, sms-messages and other web services.http://www.gala.net; http://mygala.gala.net; http://photo.gala.net; http://love.gala.net; http://top.gala.netDeveloped modules and database for web-mail system .Developed comprehensive algorithms for managing graphic files for the http://www.ingfn.com.ua siteApplications and technologies used:PHP, Perl, Java, work with Sybase and mySQL databases, designed HTML using DHTML and JavaScript.