Sergey S. — Java Engineer

Expertise in Full Stack Web.

Last verified on July, 2023

Core Skills

Bio Summary

- 6+ years of professional expertise in the IT industry;
- Solid experience in Java and related technologies;
- Hands-on experience with Microservices architecture;
- Experience in the development of Enterprise applications using Java and JEE Technologies;
- Database structure design and development;
- Domain and business process analysis and modeling
- Upper-Intermediate English
- Available ASAP

Technical Skills

Programming Languages	C#, Java, JavaScript
UI Frameworks, Libraries, and Browsers	Ajax, Bootstrap, CSS, HTML, jQuery, XML
.NET Platform	ASP.NET MVC
Java Frameworks	Hibernate, Spring, Spring Boot
Java Libraries and Tools	Jackson, Java EE, Java SE, Java Server Pages (JSP), Java Servlets, JPA, JSTL, Spring Cloud, Spring Core, Spring Data, Spring model-view-controller (MVC) framework, Spring Security
JavaScript Frameworks	jQuery
Databases & Management Systems / ORM	ELK stack (Elasticsearch, Logstash, Kibana), Hibernate, Microsoft SQL Server, MongoDB, MySQL, PostgreSQL
Cloud Platforms, Services & Computing	AWS, Spring Cloud
QA, Test Automation, Security	Apache Maven, JUnit
Web/App Servers, Middleware	Apache Tomcat
Collaboration, Task & Issue Tracking	Atlassian Trello, Jira, Redmine
Virtualization, Containers and Orchestration	Docker, Docker Compose
Version Control	Git, Perforce, SVN
Message/Queue/Task Brokers	Kafka
Methodologies, Paradigms and Patterns	Kanban, microservices architecture, MVC, Scrum
Operating Systems	Linux, macOS, Windows
SDK / API and Integrations	RESTful API

Experience

The software development company, Java Developer

July 2018 – Present

Appus Studio, Java developer

January 2018 – July 2018

Avista Technologies, Java developer

May 2015 – December 2017

Projects

Under NDA

Description:Microservices banking system, with rest API, spring boot mongo criteria as a data layer. Spring rest docs in unit tests. The goal is to extract and process user data.

Responsibilities: Implementation of new microservices, functionality, and features.

Technologies: Java 11, MongoDB, Spring boot, Docker, Microservices

Custodia

Description:End-to-end business automation solution in the Compliance Management domain. Includes database integration, telecom, and other SIP-related features such as Cisco VoIP.

Responsibilities: Development of new features and functionality.

Technologies: Java 8, MySQL, ELK Stack, Kafka, Debezium, Spring Boot, Spring Data, Spring Security, HTML, SIP, Docker, Microservices

Under NDA

Description:An application for monitoring the process of teeth straightening with the help of the innovative tool Aligner

Responsibilities: Implementation of new microservices, functionality, and features, writing Unit tests, and planning.

Technologies: Spring (Spring Boot, Spring Data, Spring Security), Spring Cloud, Docker Compose, HAL, AWS, RabbitMQ, PostgreSQL, Microservices

Under NDA

Description: Web portal for companies and their customers. Different companies can acquire an account in the portal, create their customers, create the portals and share it with customers

Responsibilities: Fullstack developer, TL, architecture design.

Technologies: Spring Boot, MySQL, Spring Security, Hibernate, HTML5, CSS3, jQuery, Angular, AWS, Microservices

Under NDA

Responsibilities: Creation of the RESTful mobile and admin API.

Technologies: Java, Spring Boot, Jenkins, Docker, Hibernate, Mysql, Microservices, SQL, HQL, Javascript, Angular

Calypso

Description: Bank system

Responsibilities: Developing new features and functionality.

Technologies: Java, Spring, Tomcat, MongoDB, Oracle, MySQL

Avista

Description: Stock exchange client

Responsibilities: Developing from scratch, bug fixing.

Technologies: C#, ASP.NET MVC, JavaScript, jQuery

Avista alarm

Description:iOS App

Responsibilities: Developing new functionality, and bug fixing.

Technologies: Objective C, Swift, SQLite

iDoRecall

Description:Service for studying. Creation notes to study, attach files, set deadlines. Service has paid subscription via stripe. Mailing of letters with user's notes status via MailGun.

Responsibilities: Developing new features and functionality.

Technologies: Javascript, NodeJS, Firebase, Google Cloud Function, Stripe

Under NDA

Description:Web-based app of Kanban-board project tracking system (analog of Trello with a bunch of new features and functionalities).

Responsibilities: Developing new features and functionality, fixing bugs, and code review.

Technologies: Java 8, Hibernate, Spring (Ioc, Data, Security, MVC), Spring Cloud (Zuul, Eureka, Hystrix, Turbine, RabbitMQ, Feign), Docker, Docker-Compose.

Social Media (Web application)

Description:Social media server with Web-UI interface (chatting, friendship, blogging with media)

Responsibilities: Database design and development, Service layer development, Web-UI interface development.

Technologies: Java, Spring (MVC, Security, Data), Hibernate, MySQL, JavaMail API, Junit, JSP, JSTL, JavaScript/JQuery, HTML, CSS, Bootstrap, Ajax, Maven, Tomcat

Education

Masters's degree in computer science, Kharkiv Technical University of Radioelectronics

September 2010 – June 2015

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