Contact information

You can get this candidate's contact information from https://www.work.ua/resumes/10252779/

Work experience

Independent Solution Architect & Technical Consultant

from 08.2019 to now (7 years 4 months)
Self Employed, Київ (IT)

Provided high-level technical consulting and architecture design for fintech, crypto, and enterprise web applications.

Designed scalable microservices architectures and high-load backend systems using Java, Spring Boot, AWS, and Kubernetes, reducing system downtime and optimizing performance.

Helped early-stage startups build their technical foundations from scratch, set up CI/CD pipelines, and establish secure data handling.

Mentored engineering teams and individual developers, helping them transition to Senior-level engineering roles.

TEAM LEAD

from 02.2019 to 08.2019 (7 months)
SPIN.UP.MOVE, Київ (IT)

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.

SENIOR JAVA DEVELOPER

from 07.2018 to 03.2022 (3 years 9 months)
WeSoftYou, Київ (IT)

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

Team leader

from 05.2018 to 10.2018 (6 months)
ICOUNICORNS, Київ (IT)

Leading blockchain projects. Personally designed and developed from scratch currency stock exchange. TOP-30 in world by coinmarketcup - exchange platform Exrates.me
Personally 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.

JAVA TRAINER, PRINCIPAL DEVELOPER

from 10.2014 to 10.2017 (3 years)
BECOMEJAVASENIOR.COM, Київ (IT)

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.

JAVA TECHNICAL LEAD

from 08.2014 to 10.2014 (3 months)
GLOBALLOCIG, Київ (IT)

Project: AVID
Description: 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.

JAVA TRAINER

from 06.2013 to 07.2015 (2 years 2 months)
LUXOFT TRAINING CENTER, Київ (IT)

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

SENIOR JAVA DEVELOPER

from 12.2012 to 07.2014 (1 year 8 months)
LUXOFT, Київ (IT)

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.

JAVA DEVELOPER OF IBM WEBSHPHERE COMMERCIAL

from 04.2012 to 10.2012 (7 months)
SYSIQ, Київ (IT)

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.

LEAD JAVA DEVELOPER

from 08.2011 to 03.2012 (8 months)
IS PREDICT, Дніпро (IT)

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.

JAVA MIDDLE DEVELOPER

from 10.2010 to 08.2011 (11 months)
EPAM, Дніпро (IT)

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.)

JAVA WEB DEVELOPER

from 04.2008 to 09.2010 (2 years 6 months)
ПриватБанк, Київ (Фінанси, банки, страхування)

Architecting and creating new functionalities of payment system “Privat24”, and “Flat” projects.
Develop internal APIs. Have been a leader of up to 8 members’ team.:
Develop over payment system Privat24 (www.privat24.ua). Working out and introduction of a lot of new services (Non-cash gold, Tariff plans, LiqPay, Fuel Sale, MobileBanking, SMS-DISPATCH, the Basket of payments, etc.), completion of the existing. Close cooperation with leaders of other projects.
Gained:
Started work with SVN, XSLT, X-Path, Spring framework, iBatis, EJB, Maven, Ant, Google calendar and maps API, Firebug, jQuery, web-server Resin.
Improve knowledge in Sybase SQL, CSS, XML, JavaScript and Java2EE.
Got a good understanding of the ideology of payment systems and banking industry.

Education

Dnepropetrovsk National University

Computer systems and networks, Дніпро
Higher, from 2002 to 2006 (4 years)

Knowledge and skills

• Уважність
• Java
• Git
• Знання принципів ООП
• Spring Framework
• HTML
• SQL
• Java Core
• Hibernate
• Spring Boot
• MySQL
• IntelliJ IDEA
• Apache Maven
• CSS
• JUnit
• Знання технологій JDBC
• JavaScript

Language proficiencies

English — average

Additional information

Publications and presentations
Java Fusion 2012: Mastering Java bytecode:
http://iqlab.org.ua/events/java-fusion-2012
http://dou.ua/lenta/events/iqlab-java-fusion-report/
Dev Labs 2014:
http://www.soft-labs.net/dev-labs2014_java/agenda/941/
Introduction into Git:
https://www.youtube.com/watch?v=HjGi-SzvSu0