Open to opportunities

Danylo Oliinyk

@danylooliinyk

Message

I build Java backend APIs and full-stack platforms with Spring Boot and relational databases.

Poland

Message

What I'm looking for

I'm seeking a Junior Backend or Full-Stack Developer role where I can build secure Java applications, contribute across the stack, and continue growing through hands-on product development.

I've built production-style Java systems including a crypto exchange platform with wallets, payment flows, blockchain integration, and role-based admin panels. My projects use Spring Boot, REST APIs, MySQL or PostgreSQL, Docker, JWT authentication, and layered architecture.

At AI Quantum Tech, I helped build the Smart Money Advisor system, creating financial-data preprocessing and feature-engineering pipelines with Pandas and NumPy. I trained and evaluated scikit-learn predictive models and presented findings to stakeholders.

I'm focused on backend design while remaining comfortable across the stack, from React interfaces to secure Spring Security integrations and concurrent Java socket systems.

Experience

Work history, roles, and key accomplishments

ML Researcher & Programmer

AI Quantum Tech

Mar 2025 - Sep 2025 (6 months)

Built a Smart Money Advisor system as part of a small team, applying machine learning models to financial data for decision support. Implemented data preprocessing and feature-engineering pipelines on financial datasets using Pandas and NumPy.

Python Django Pandas NumPy scikit learn Git