Данило
Backend Software Engineer
- Age:
- 22 years
- City:
- Lviv
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Backend Developer · Java / Spring Boot · REST APIs · PostgreSQL
SUMMARY
Backend developer with over a year of commercial experience. I build server-side systems using Java and
Spring Boot - REST APIs, databases, caching, and message queues. I can handle frontend tasks when
needed, but my main focus is clean, reliable backend code.
WORK EXPERIENCE
Backend Developer - Softica Jan 2025 – Present · Remote
• Built REST APIs and backend business logic with Java 17 and Spring Boot. Set up
authentication with Spring Security and database access with Spring Data JPA.
• Worked with PostgreSQL - designed data models and optimized slow queries, reducing
response time on critical endpoints by up to 60%.
• Set up Redis caching from scratch - cut the number of database calls on hot endpoints by
~40%, which noticeably improved response times under load.
• Connected backend services through async message queues using Kafka/RabbitMQ - so
services don't depend on each other and the system stays stable under load.
• Covered backend code with tests using JUnit and Mockito, reaching ~70% test coverage on
core modules. Took part in code reviews and helped fix production issues.
• Built frontend UIs using TypeScript, React and TailwindCSS to support backend functionality.
TECH STACK
Core Backend: Java 17, Spring Boot, Spring MVC, Spring Security, Spring Data JPA
APIs & Messaging: REST API, Microservices, Kafka, RabbitMQ
Databases: PostgreSQL, MongoDB, Redis
Testing & QA: JUnit, Mockito, Postman
DevOps & Tools: Docker, Git, Maven, GitLab CI/CD
Frontend: TypeScript, React, TailwindCSS
EDUCATION
Technical University of Košice (TUKE) - Bachelor in Computer Sсience
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The candidate's resume is posted at https://www.work.ua/resumes/17773449/