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Summary

Expertise

Project Highlights

Education

Agency

OB

English:

Advanced

Oleksandr B.

vetted by Youteam

Vetted by YouTeam

Ukraine

UTC +02:00

Ukraine/Kyiv

English:

Advanced

Java developer/Tech lead/Application Architect

A Java professional with more than 15 years of experience as a developer, technical lead, and application architect in both outsourcing and product companies. Some of the latest achievements: x15 times improved performance for the smart lock electronic keys service, multiple successful migrations (Java 17, Spring Boot 2.6 etc), significantly improved and sped up the build process, developed infrastructure for better testing (domain, query and performance). Team player, hard worker, target oriented.

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Expertise

Years of commercial development experience

22 years of experience

Core technologies

Java 18 years
Spring 18 years
Spring Boot 9 years
PostgreSQL 18 years
RabbitMQ 15 years
Docker 10 years

Other technologies

Linux
MySQL
Oracle
XML
Git
Gradle
IntelliJ IDEA
Jenkins
JUnit
Mockito
XPath
XSLT
Ansible
Bash
Maven
TestNG

Project Highlights

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Application Architect, Senior Java Developer

Bekey

Apr `19 - Present

6 years

Bekey is a provider of digital access solutions that can, among other things, give parcel post, home care, newspaper delivery and selected distributors easy and secure access to stairs in apartment buildings. This is how Bekey works The system works via a secure, digital platform, from which encrypted digital keys are automatically assigned to approved business partners with an errand in the corridor in question. Installing the chip The solution is installed with a non-visible chip in the entrance's existing door phone system in a few minutes. The residents continue to use their own keys for the entrance and Bekey does not give access to the residents' apartments. Installation and maintenance of the Bekey solution is free for both the residents and the property.

Responsibilities & achievements

Development of new functionality for the existing product; optimizing performance of the services and database; tuning performance of database search and data intensive processing; improving project structure and better testing (unit, integration and database queries); integrations with the 3rd parties; keeping the project up-to-date with the latest technologies and dependencies.

Hibernate
Java
PostgreSQL
Gradle
Ansible
RabbitMQ
Swagger
Spring Boot
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Senior Java Developer

Under NDA

Aug `15 - Jul `16

11 months

A global supply chain visibility, execution, and event management platform. It provides shippers, suppliers, and carriers with one place to see inbound, outbound, and third-party shipments across all carriers and modes, international and domestic, regardless of how or where those shipments are booked. This platform's complete offering of data and analytic tools works with a company's existing systems to allow deep insight into what is really happening across the entire supply chain. As a result, their clients can better synthesize and make sense of a large amount of data, tapping into hidden opportunities.

Responsibilities & achievements

Development of the parcel tracking service, integration with the 3rd parties.

Java
Spring Data
Maven
Spring Boot
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Tech Lead, Senior Java Developer

Nets

Aug `13 - Mar `19

6 years

The European PayTech with scale, capabilities and proximity to provide the simplest, fastest and safest payment solutions to People, Businesses and Financial Institutions.

Responsibilities & achievements

Development of the payment platform which integrates with many payment service providers; implementing integrations with the 3rd parties; project structure improvements and refactorings; supervising novices.

Hibernate
Java
JBoss
MySQL
Gradle
Ansible
RabbitMQ
Maven
Spring Boot

Education

Higher education in Computer Science

Agency

Custom software development agency #910

100-400

GMT+2

Krakow/Poland, Dnipro/Ukraine

Core Expertise

Agile
Amazon EC2
Amazon S3
API
AWS
Azure
C#
Cassandra
Core Java
Eclipse
Express.js
Full Stack Development
Hibernate
Ionic
Java
JavaScript
Kubernetes
MongoDB
MySQL
Node.js
Oracle
PL/SQL
PostgreSQL
Prototype
Python
React.js
SaaS
Scala
Selenium
Software Development
Spring
SQL
SQL Server
Sys Admins
Tableau
Technical Writers
TypeScript
UI
UX
Web Development
Amazon Web Services
Code Refactoring
DevOps
Elasticsearch
Golang
IntelliJ IDEA
Ionic Framework
iOS
IT Management
IT Service Management
Load Testing
Microsoft SQL Server Programming
Mobile
Mobile App Testing
Multithreaded Programming
NHibernate
NoSQL
Object oriented design
Object Oriented Programming (OOP)
Oracle database
Oracle PLSQL
Performance Testing
Product management
Program Management
Project Scheduling
Regular Expressions
Relational Databases
Requirement Management
Requirements analysis
Scrum
Software Configuration Management
Software Documentation
Spring Framework
SQL Programming
Stakeholder Management
Swift
System Automation
Templates
Test Automation
Test Case Design
Test Driven Development
TestComplete
Testing Framework
Unit Testing
Usability Testing
User acceptance testing
Web Crawling
Web scraping
Web Services
Web Testing
Windows Communication Foundation (WCF)
Windows Presentation Foundation (WPF)
Logo Design
Mobile UI Design
Responsive Web Design
User Experience Design
Website Prototyping
Website Wireframing
Wireframing
Angular 2x
MS SQL Server
Postman
Project management
Prototyping
Release Management
RESTful API
Spring MVC
TeamCity
Trello
UI Bootstrap
Webpack
Zabbix
Docker
Grafana
Linux Systems Administration
SDLC
SQL query
SSOAuth
test case development
Test Cases
Test Design
Test Planning
Test Strategy
Test Track
Windows Systems Administration
Kanban
Redux
Regression testing
Security testing
Test Complete
Test estimation
Back End
UIUX Design
Team Lead
Project Manager
Scrum Master
Solidity
Vue.js
WebStorm
Maven
Spring Boot
Acceptance testing
YouTrack
Smart Contracts
Business Analysis
Rust
Web3.js
Microservices
Slack
Security consulting
Security audit
Google Cloud Platform
AWS Lambda
GoLand
Next.js
Terraform
Keras
Amazon Redshift
Azure DevOps Server

Industries

Education & Science, Logistics & Transportation, Banking & Finance, Construction & Real estate, Healthcare & Medicine, Data Science & Machine Learning, Big Data, Automotive, SaaS, Point-of-Sale

Want to hire this engineer?

Check if Oleksandr is available