Станіслав

Stanislav Koshynskyi
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | github.com/Stanislav-Koshynskyi

Education
National University of Kyiv-Mohyla Academy Kyiv, Ukraine
Bachelor’s degree, Software Engineering 2025 – 2029 (expected)

Experience
Backend Developer (project-based) Sep. 2026
FreshFest Monopoly – commissioned by a student organization
– Built the backend for a gamified event app used at an event with ∼1000 attendees (Java, Spring Boot, Spring
Security, JPA, Flyway, Docker)
– Implemented authentication via Microsoft accounts and JWT with role-based access control for attendees,
volunteers and cashiers
– Implemented QR location check-ins with rotating tokens and a prize roulette with transactional spins and prize
stock control
– Containerized the app with Docker Compose, set up CI (GitHub Actions) and deployed it before the event

Projects
Smart UKMA (university system, team of ∼10) | Java, Spring Boot May 2026 – Present
– Backend contributor to a microservice system (∼10 services); built automatic generation of an entity history
page in the site builder

Instant Wellness Kits (INT20H hackathon) | Java, Spring Boot, Spring Security, PostgreSQL Feb. 2026
– Backend of a sales tax calculation service for orders (team of 3)
– Implemented JWT authentication with Spring Security, order filtering API with JPA Specifications, DTO
validation and global exception handling
– Containerized the backend and frontend with Docker Compose

AI-Divers (FIDO university hackathon) | Java, Spring Boot, WebClient, SSE May 2026
– Developed the backend REST API of an AI-agent platform (agents, tools, chat sessions, deployments) in a team
of 6
– Integrated the backend with a separate AI service and streamed agent execution results to clients using
Server-Sent Events

NaUKMA PhD Portal | Django REST, Next.js, PostgreSQL May 2026 – Present
– Team project in development (8 developers); AI-assisted development, with my focus on architecture design and
validation
– Implemented an append-only versioning API for academic records and role assignment with permission checks;
built the related Next.js screens

Achievements
ICPC SEERC 2025: Honorable Mention (team of 3)
All-Ukrainian High School Olympiad in Mathematics: 3rd Degree Diploma, final stage, 2025
Participant: INT20H hackathon, KPI Open, FIDO university hackathon

Technical Skills
Languages: Java, SQL
Frameworks: Spring Boot, Spring MVC, Spring Security, Spring Data JPA, JUnit
Databases: PostgreSQL, Flyway
Tools: Git, Maven, Docker, Docker Compose, GitHub Actions
Languages (spoken): Ukrainian (native), English (B1)