Григорій

Seniv Hryhorii [open contact info](look above in the "contact info" section)
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Java Developer [open contact info](look above in the "contact info" section)
LinkedIn
Lviv, Ukraine
Summary
Experienced Java Developer with 3 years of hands-on experience in building scalable microservices and
high-load banking systems. Proficient in the Spring ecosystem, Hibernate, and asynchronous
messaging (Kafka, RabbitMQ). Proven track record of developing services from scratch, optimizing
system reliability (increasing test coverage from 0 to 60%), and working within complex cloud
environments. Passionate about writing clean, maintainable code following SOLID principles.

Technical Skills
● Languages: Java, SQL, JavaScript (Basic), Python (Basic).
● Frameworks: Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate.
● Databases & Search: PostgreSQL, MySQL, Redis, Elasticsearch.
● Messaging: Apache Kafka, RabbitMQ.
● Cloud & DevOps: Docker, Kubernetes, AWS (S3), Google Cloud Platform (GCP).
● Tools & APIs: Git, Maven, JUnit, Mockito, Jsoup, OAuth2, REST API, Google APIs.
● AI & GenAI: Vertex AI, Gemini for Developers, RAG (Retrieval-Augmented Generation).

Experience

Java Software Engineer
PrivatBank(remote)
Oct 2024 – Present

● Developing and maintaining core banking services for account opening, supporting tens of
thousands of daily active users.
● Significantly improved system stability by increasing unit and integration test coverage from 0%
to 60%.
● Implementing new business features and optimizing existing functionality to ensure high
availability and fault tolerance.
● Tech Stack: Java, Spring, JDBC NamedTemplate, RabbitMQ, Microservices, JUnit.

Java Software Engineer
JobsLab(remote)
Mar 2023 – Jul 2024

● Engineered and scaled a recruitment platform designed to streamline candidate sourcing and
management.
● Developed multiple microservices from scratch, ensuring seamless integration within a
distributed architecture.
● External Integrations: Integrated third-party services including Google Calendar API and Amazon
S3 for a custom cloud storage solution.
● Security: Implemented secure OAuth2 authentication flows for Google, Microsoft, Zoom, and
GitHub.
 ● Data Processing: Developed robust parsers using Jsoup for job boards (LinkedIn, Work.ua, etc.)
and facilitated real-time data streaming via Apache Kafka.
● Tech Stack: java 17, Spring Boot, Hibernate, Kafka, Elasticsearch, Docker, Kubernetes,
PostgreSQL.

Education
Mate academy
Java course (Full-time)
Sep 2022 – Jan 2023

● Intensive practical course covering Java Core, Spring Boot, Databases.

Lviv Polytechnic National University
Bachelor's degree in Computer Science
2017 - 2021

Certifications
● Google Cloud: Website Modernization with Generative AI, Gemini for Application Developers.
● Mate academy: Java Developer Profession, Docker Core, Operating Systems, Git & Terminal.
● SoftServe: TAQC / Java Development Crash Course.