Данило

Danylo Senchyshyn
[open contact info](look above in the "contact info" section)
• Github • LinkedIn
SUMMARY

Backend Software Engineer with 2+ years of experience specializing in Java and Spring Boot. Skilled in
building scalable backend services, REST APIs, and database-driven applications. Strong focus on clean
architecture, performance optimization, and reliable service delivery, with additional experience integrating
frontend components when needed.

WORK EXPERIENCE

Backend Developer — Softica
Sep 2024 – Present | Remote, Ukraine

• Delivered distributed microservices (Java 21, Spring Boot 3) improving system scalability.
• Built RabbitMQ-based event flows, reducing processing time and improving resilience.
• Optimized performance with Redis caching and SQL/index tuning, cutting API latency.
• Shaped architecture by defining API contracts and service boundaries.

Backend Developer - Sombra Inc.
Sep 2022 – Sep 2024 | Remote, Ukraine

• Developed and improved REST APIs with filtering, pagination, validation, and PostgreSQL.
• Standardized DTO mapping and error handling, reducing API issues and simplifying maintenance.
• Increased stability by adding unit tests (JUnit 5, Mockito) and fixing regressions.
• Refactored repository methods and improved Swagger documentation.

TECH STACK

Backend: Java 17/21, Spring Boot, Spring Security, REST API, Microservices

Databases: PostgreSQL, MongoDB, Redis

Testing & QA: JUnit, Mockito, Postman

DevOps & Tools: Docker, Git, Maven, Kafka/RabbitMQ, GitLab CI/CD

EDUCATION

• Technical University of Kosice (TUKE)
Bachelor’s in computer Sсience