Oleksandr G. — Senior Java Engineer

Expertise in Full Stack Web.

Last verified on July, 2023

Bio Summary

- 8 years of work experience in IT;
- Experience working with Kotlin;
- Good understunding of PostgreSQL;
- Good skills with SQL, MySQL, and SQLite;
- Experience working with banking and financial projects;
- Deep skills working with Docker and Kubernetes;
- Good knowledge of Python;
- Functional programming (lambda calculus, typed lambda calculus, lazy evaluations, pure functions);
- GRASP and GoF Patterns, UML;
- Good logical thinking, self-learning, and high level of responsibility;
- Intermediate English;
- Available ASAP

Technical Skills

Programming Languages	antlr4, C++, Groovy, Haskell, Java, Kotlin, Python
Android Libraries and Tools	Android APIs, Kotlin
JavaScript Frameworks	Angular, jQuery
Python Frameworks	Django
Java Frameworks	Hibernate, Spring, Spring Boot
Java Libraries and Tools	Java Server Pages (JSP), JMS, JPA, Spring Core, Spring Data, Spring model-view-controller (MVC) framework
Python Libraries and Tools	PyQt
Databases & Management Systems / ORM	Hibernate, MySQL, PostGIS, PostgreSQL, Redis, SQL, SQLite
UI Frameworks, Libraries, and Browsers	jQuery
SDK / API and Integrations	Android APIs, GraphQL, Keycloak, SocureAPI, Swagger, TrulioAPI
Virtualization, Containers and Orchestration	Docker, Kubernetes
Version Control	Git
Collaboration, Task & Issue Tracking	Jira, Redmine
Message/Queue/Task Brokers	Kafka
Operating Systems	Linux, macOS, Windows
Methodologies, Paradigms and Patterns	microservices architecture, OOP
Mail / Network Protocols / Data transfer	WebSockets

Experience

Java Developer

October 2021 – Present

Java Developer, INTAPP

June 2017 – October 2021

Java Developer, Msystem technology

January 2017- June 2017

Trainer Java, Infopulse Ukraine

October 2014 - February 2020

RD trainer in Java, Epam Systems

March 2010 – January 2019

Projects

Projects 1

Description: Developing payment systems.
Responsibilities: Designing and developing new features.
Technologies: Java 11, Spring MVC, Spring Boot, Spring Data, PostgreSQL, Hibernate, Swagger, Kubernetes, Docker, antlr4, graphQL, SocureAPI, TrulioAPI, Kotlin.

Projects 2

Description: Developing an integration platform consolidating various company products; the project uses such patterns as Database per Tenant and Security per Entity.
Responsibilities: Designing and developing new features.
Technologies: Java 11, Spring MVC, Spring Boot, Spring Data, PostgreSQL, Hibernate, Swagger, Kubernetes, Docker.

Msystem

Description: The application provides processing of data collected from agriculture smart devices like penetrometer, weather stations, etc, along with its analysis and visualization.
Responsibilities: Designing and developing new features.
Technologies: Java 8, Spring MVC, Spring Boot, Spring Data, PostgreSQL, Kafka, PostGIS, Hibernate, Swagger.

Mobile Project for Android

Description: Real-time personalized gesture recognition application (using DTW algorithm), which involves an accelerator sensor and gyroscope.
Responsibilities: Designing and developing new features.
Technologies: Java 6, Android API, SQLite.

Startup

Description: Designing a programming module for the approximation of computer systems performance depending on the characteristics of components using a piecewise linear regression model.
Responsibilities: Designing and developing new features.
Technologies: Java 8, SQLite, Groovy.

Education

Physics and Technology Institute (Kyiv department), Ph.D. in Mathematical Physics
1996-2000

Taras Shevchenko Kyiv National University, Physical faculty specialty: theoretical nuclear physics
1991-1996

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Oleksandr G.
or someone with similar Skills?

Book a call with Oleksandr G.

Start Hiring