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Програміст Java

City of residence:
Kyiv
Ready to work:
Remote

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Rostyslav Nikolenko
Java Backend Developer
Email: Phone:
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)
GitHub: LinkedIn:
github.com/NikolenkoRostislav [open contact info](look above in the "contact info" section)
Location: Eschborn, Germany

TECHNOLOGIES

Backend: Java, Spring Boot, JUnit, PostgreSQL, MongoDB, Redis, RabbitMQ, AWS S3, Stripe

Frontend: TypeScript, JavaScript, React, Vue, HTML, CSS

Tools: Git, GitHub Actions, Maven, Docker, Docker Compose, Nginx, Linux, Bash, Makefiles

EXPERIENCE

Nandev · Backend Developer · Early-stage Startup March 2026 - Present
• Developed an AI model interaction backend with server-sent event streaming
• Implemented JWT authentication, Google OAuth, and API key validation
• Integrated Stripe payments for usage-based billing

Docflow · Backend Developer · NIX Software Engineering Intensive June 2026 - July 2026
• Built a REST API for document management with Spring Boot
• Implemented file validation and S3-based storage
• Developed batch workflows for uploading and downloading signed document packages
• Integrated digital signatures and ASiC verification

IT Job Scraper · Personal Project December 2025 - February 2026
• Built a REST API with JWT authentication and role-based access control
• Aggregated job postings from 8+ sources into a unified feed
• Automated scraping pipeline with Scrapy and Celery

E D U C AT I O N

Bachelor of Computer Science · Remote September 2024 – July 2028
National Technical University “Kharkiv Polytechnic Institute”

School Leaving Certificate · Recognized in Germany as Realschulabschluss June 2024
Kamianets-Podilskyi Lyceum

L A N G UAG E S

English German Russian Ukrainian
C1 B2 Fluent Native

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