Sergey S., Java Engineer

Full Stack Web
$45/hr
english B2 (Upper-Intermediate) English
seniority Senior (5-10 years)
location Germany UTC+01:00

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

Main Skills

Programming Languages

UI Frameworks, Libraries, and Browsers

Ajax Bootstrap CSS HTML jQuery XML

.NET Platform

ASP.NET MVC Pattern

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

ID: 300-101-920
Last Updated: 2023-07-04

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