Independed Expert, Java consulting, help onboard new Java projects.

As CTO was engaged in creating Technical documentation, communication with business customers, with technical outsource companies that help built our product. Responsibility in hiring new team member.SPIN.UP.MOVE. is a flexible social program for various groups of people: corporate employees, labor union members, civic and nongovernmental organizations.Product goal is to significantly improve the standards of living of every Ukrainian by providing the best-quality social services and encouraging people to spend money on useful, quality goods instead of buying cheap.

Leading blockchain projects. Personally designed and developed from scratch currency stock exchange. TOP-30 in world by coinmarketcup - exchange platform Exrates.mePersonally gathered hands-on team with designers, devops, project managers, QAs, front-end and back-end developers.Opened cozy office and built friendly environment.We have splited monolithic to services architecture. Develop real-time support of working exchange platform.Removed security vulnerabilities and made huge enhancement of servers and code protection, implemented KYC.Built Agile approach for 2 teams of developers. Built financial infrastructure with monitoring for finance department.Managed development of noSQL solutions (MongoDB, Elastic); Docker load balancer, Rabbit MQ, Radis caching, Rest HATEOAS; high load system, high fault tolerance, microservices - implementation of Amazon Scaling, Kubernetes, Angular 5 development.

Individual consulting as JavaEE Expert and Architect for product company and startups.Working as independent software developer focusing on designing and implementing robust, high-quality, scalable software using Java frameworks.Created team of Java Developers, QA and PMs for outsourcing development.Prefer work as Architect, help companies to build product from scratch: create specification, make product decomposition, design architecture of whole system and even hire Software developers, open R&D office in EU and Ukraine.Mentoring and coaching juniors and middle developers in group and individually, helping them to grow up as professional developers.

Project: AVIDDescription: Integration with SalesForce Streaming and Rest API from scratch. Develop services for cloud distributed system. Work closely with software architects on structure and architecture of the project. Implementation and integration parts of the system among themselves, adapt to existing systems and API, writing technical documentation, configuration continues integration system. Writing continues integration tests. Was doing development of a 3-tier architecture and definition of service architecture using RAML specification.Tools and Technologies: SCRUM, Planning poker (http://planningpoker.com), Velocity Jira, Intelijii Idea, Maven, Spring IoC, jUnit, Moсkito. MongoDB, RAML.

Working as Trainer at Luxoft Training Center. Teaching courses "JavaSE6 Basic", "JavaSE6 Advance", "GoF Design Patterns". http://www.luxoft-training.ru/about/experts/sokolov.html

I’m in charge of developing and start on production internal configuration system using Java, Spring, Hibernate, JMS, Struts 2, jQuery. Close cooperate with Product Owner in London, deliver versions and DEMOs.Did onboarding and develop new project based on Java Servlets, JDBS, ExtJS 4, Oracle and have role of mentor of new Java Developers. Maintain continuous integration environments (Jenkins, TeamCity) on Linux and create bash scripts. Maintain Oracle database and did migration from 9 to 11 version. Work as regular interviewer on Java positions from Junior to Team Leads.

Refactoring code follow Java Code Conventions and make SQL optimization to reduce memory usage for sears.com sites based on e-commerce and e-business solutions IBM WCS. As project coordinator at Sears Company deliver requirements to offshore Ukraine team and doing backend and frontend optimization for main product pages being onside in the USA for 2 month long. Develop solutions for samash.com included integration with GE Money and Cybersource payment systems. Document researched problems and gained knowledge in internal wiki. Gained:New experience in direct communication with clients, understanding their requirements and remarks.I've experienced with IBM Websphere Commercial.

Upgrade and improve CLIX project and implement new functionalities. Create test cases in a high level. Keep the connection with German customer. Introduce into practice the test system based on jUnit and Selenium. Successfully implemented Talent Management System into CLIX Project included complex UI based on ExtJS framework and back-end administration tools).Gained:Tried Agile methodologies. Enlarged JSP, ExtJS, Ant and Tomcat skills. I've experienced with CVS, Jira, TestNG, Selenium framework.

Create new features for admin console at allesklar.de project based on JSF and Spring.Gained:I became a professional in JSF (additional Rich Faces, Apache tomahawk, a4j), JAXB, Oracle SQL, Bugzilla, jUnit, lucene-search, Jersey.Increased different skills (Spring framework; Sonar; Design patterns; Tomcat, Maven etc.)