Олексій

[open contact info](look above in the "contact info" section)
Oleksii Kordysh Telegram | LinkedIn
Java Developer [open contact info](look above in the "contact info" section)
Vinnytsia, Ukraine

SUMMARY
High-impact Java Developer and Academic with a PhD, specializing in the design and implementation of
scalable, high-availability backend systems within the Java/Spring ecosystem. Proven track record in
network automation, microservices architecture, and robust API integration. I bridge the gap between
advanced R&D and production-grade software engineering, ensuring system maintainability through
rigorous testing and clean architecture. Currently holding a legal mobilization reservation and available
for immediate contribution to complex technical projects.

TECHNICAL SKILLS
Languages: Java (11/17+), SQL, Bash.
Frameworks/Libraries: Spring (Boot, Core, Web, Security, Data), Hibernate, JDBC, JUnit, Mockito,
gRPC, JOOQ, Netflix Conductor.
Infrastructure & Tools: Docker, Kubernetes, Jenkins, Maven, Git, Gerrit, Jira.
Databases: PostgreSQL, MySQL.
Architecture: Microservices, REST, OOP, SOLID, Enterprise Design Patterns.
Languages: English (Upper-Intermediate), Ukrainian (Native).

SOFTWARE DEVELOPMENT EXPERIENCE
Java Developer | Bluefield Technologies Sept 2022 – Present
Microservices Architecture: Lead the full-cycle development of backend Java applications, focusing
on scalable microservices for network automation.
System Design: Collaborate with cross-functional teams to translate complex feature requirements into
maintainable database schemas and API designs.
High-Quality Code: Implement rigorous testing standards using JUnit and Mockito to ensure 90%+
code coverage on critical modules.
Deployment: Manage containerized environments using Docker and Kubernetes, utilizing Jenkins
and Gerrit for continuous integration and code review.
Tech Stack: Java, Spring Boot, gRPC, PostgreSQL, Docker, Kubernetes, Jenkins.

Java Developer (Trainee) | Mate Academy May 2022 – Sept 2022
Developed full-stack training projects focusing on web fundamentals and database management.
Tech Stack: Java 11, Maven, MySQL, JDBC, Servlets, Tomcat, Heroku.

ACADEMIC & R&D EXPERIENCE (Parallel to IT)
PhD Researcher & Educator | INTITA University / DonNU Sept 2023 – Present
Contributing to the development of interdisciplinary R&D infrastructure.
Teaching chemistry and developing specialized curricula (part-time).
Innovation Manager & R&D Engineer | DTEK / KNESS Feb 2020 – Apr 2022
Technical expert for green hydrogen projects and redox flow battery technology.
Managed research development and provided technical consultancy for large-scale energy projects.
Process Engineer | Procter & Gamble Aug 2019 – Jan 2020
Focused on loss elimination, technical standards implementation, and process control.

EDUCATION
Ph.D. in Chemistry | Vasyl Stus’ Donetsk National University | 2020 – 2024
Java Full-Stack Course | Mate Academy | 2022
Master’s in Chemical Technology & Engineering | NTUU "Kyiv Polytechnic Institute" | 2014 – 2019