Oleksandr

Oleksandr Galkin
e-mail: [відкрити контакти](див. вище в блоці «контактна інформація»)
phone: [відкрити контакти](див. вище в блоці «контактна інформація»)(Ukraine)
Location: Kyiv, Ukraine
Summary
Looking for a position in an interesting and challenging project to increase my programming skills and make an impact.
Education
1991-1996 Taras Shevchenko National University of Kyiv, Faculty of Physics (specialty: Theoretical Nuclear Physics)
1996-1999 postgraduate studies in the Institute of Mathematics of the National Academy of Sciences of Ukraine (PhD in Mathematical Physics)
Skills
• Algorithms and Data Structures.
• GRASP and GoF Patterns, UML
• SQL
• Microservice architecture
• Cryptography (symmetric-key algorithms DES, AES; public-key algorithms RSA, ElGamal; Diffie–Hellman key exchange; cryptographic hash functions)
• Functional programming (lambda calculus, typed lambda calculus, lazy evaluations, pure functions)

Programming skills:
• Java (Core, Multithreading, Concurrency lib)
JDBC, JPA, Hibernate, JOOQ
Servlets, JSP
Spring core, Spring MVC, Spring Boot, Spring HateOAS, Spring Data, SpringAOP
Liquibase
GraphQL
ANTLR 4
Apache Kafka
WebSockets
• Keycloak (Plugins)
• Testcontainers
• ClickHouse
• CI/CD (Jenkins / GitLab CI)
• Docker / Kubernetes
• AWS Lambdas, SQS, SNS, CloudFormation, S3
• Redis
• JavaScript(jQuery)
• Kotlin
• Python(Core, Pulumi scripts)
• C++ (Stl, Multithreading)

Additional research interests
• Neural Networks based on Kuramoto model(AKOrN and other)
• Theoretical physics
• Applied mathematics (differential equations, theory of Lie groups)

Professional Experience:
Java Developer
• January 2024 – current time
Spribe (tech stack: Java 25, Spring boot, Spring Data, Hibernate, Postgresql, Kafka, AWS S3, AWS CloudWatch, Redis)
• December 2021 – January 2024
Intellias (DigitallyInspired)(tech stack: Java, Kotlin, Spring boot, Spring Data, Hibernate, Postgresql, Dynamo DB, Kafka, AWS SQS, AWS CloudWatch, AWS Lambda, GraphQL, Datadog)
Projects: eCommerce(Java, Kotlin, Spring boot, Spring Data, Hibernate, Postgresql, Datadog, GraphQL)
Aviation(Java, Spring boot, SpringMVC, Postgresql, AWS SQS, AWS CloudWatch, AWS Lambda)
• June 2017 – November 2021
INTAPP(tech stack: Spring boot, Spring data, Hibernate, Kafka, Postgresql, Microservices, AWS Cloud)
• January 2017- June 2017
Msystem technology(tech stack: Spring Boot, Spring Data, Postgresql, Hibernate, Kafka)
Trainer (Java, Spring, Hibernate, Ruby on Rails, Django)
• March 2010 – January 2019
Epam Systems (RD trainer in Java)
• March 2001- actual time
Taras Shevchenko National University of Kyiv, Faculty of Computer Science and Cybernetics (Associate Professor)
Main courses:
1. Object-Oriented Programming (C++, Java, Python, Ruby)
2. Programming Technologies
3. Abstract Algebra
4. Functional Programming
Additional Experience
• Mobile Project for Android: real time personalized gesture recognition application (using DTW algorithm), which involves accelerator sensor and gyroscope. (Startup)
• Designing programming module for approximation of the performance of computer systems depending on the characteristics of the components using piecewise linear regression model (Startup)