Backend Developer

Olena Kolyada

Backend-oriented developer focused on Kotlin, REST APIs, databases, structured application architecture, and cloud deployment.

Olena Kolyada portrait

Profile

Backend-oriented developer with a foundation in web development and a strong focus on Kotlin backend engineering. I have practical experience building educational and internship projects with REST APIs, databases, authentication, Docker, and structured application architecture.

Currently developing backend skills through a Kotlin Backend Professional program, with a focus on clean architecture, API design, PostgreSQL, cloud deployment, and scalable service design.

Projects

FunkyTap

Minimalist gym tracker for ADHD users. Backend project planned with Ktor, PostgreSQL, and Firebase Auth. The project is currently in the architecture planning phase, before implementation.

GitHub

Vulpecula Movie Diary

Movie diary microservice built with Kotlin, Ktor, and RabbitMQ. Training project developed as part of the OTUS Kotlin Backend Professional program. The business logic is currently in development.

GitHub

Grem

Video game blog built with Symfony, React, and MySQL. Internship project delivered as an MVP. The project is complete and not planned for further development.

Professional Experience

Web Developer Intern — Jérémy Gueriba EI

Developed two full-stack applications under senior supervision using React/Next.js, Symfony, and MySQL. Worked with backend features, database models, API endpoints, and real project constraints.

Web Developer WordPress — MLBA

Created a complete website as a volunteer project. Worked on requirements analysis, page structure, custom PHP/JavaScript features, and deployment preparation.

Web Developer Joomla — Kemmlit

Built and maintained a company website using Joomla, PHP, frontend integration, and MySQL database management.

Content Manager — Kupivip

Managed e-commerce platform content and created internal process improvements through automation.

Education

Kotlin Backend Professional — OTUS

Professional Web Developer Diploma, Bac+2 — Afpa, Paris

Soft Skills

  • Analytical thinking
  • Fast learning
  • Autonomy
  • Adaptability
  • Attention to detail