Олексій

OLEKSII HRYSHKO Software Engineer (Intern/Junior) Poland | [відкрити контакти](див. вище в блоці «контактна інформація») |
[відкрити контакти](див. вище в блоці «контактна інформація») GitHub: https://github.com/OleksiyHryshko | LeetCode:
https://leetcode.com/u/BadCast/

SUMMARY

A dedicated Computer Science student at the Silesian University of Technology,
currently expanding my international academic experience at the Polytechnic University of
Valencia. Passionate about building efficient, large-scale systems. Experienced in delivering
independent backend solutions, integrating modern AI capabilities, and solving complex
algorithmic problems. Proficient in C++, Java, and Python, and actively seeking a Software
Engineering internship to apply my problem-solving skills across diverse technical challenges.

SKILLS

●​ Languages: Java, C++, Python, SQL
●​ Libraries & Frameworks: Spring Boot, Apache Kafka, JUnit, NumPy, Pandas, REST
APIs, LLM APIs (OpenAI)
●​ Cloud & DevOps: Docker, AWS, GitHub Actions, Linux
●​ Developer Tools: Git, Maven, Postman, PostgreSQL, MySQL
●​ Core Concepts: Object-Oriented Programming (OOP), Data Structures & Algorithms,
Event-Driven Architecture, Distributed Systems

EXPERIENCE & PROJECTS

Independent Software Developer | Python, REST APIs, OpenAI API Project: Market Spread
Automation Tool

●​ Developed and delivered an automated financial data tool to monitor real-time bid-ask
spreads on the Whales Market platform for a real-world user.
●​ Engineered a reliable data pipeline to continuously fetch, parse, and process market
discrepancies via REST APIs, enabling automated logic execution based on live metrics.
●​ Integrated the OpenAI API to process complex market data strings, automatically
generating real-time natural language summaries of spread anomalies.

Independent Backend Developer | Java, Spring Boot, PostgreSQL, Kafka Project: Interactive
Map Backend Service

●​ Designed and implemented a scalable RESTful API to manage, process, and serve data
for an interactive map service (ISW Map).
●​ Built a robust backend architecture, optimizing database interactions and secure routing
to handle continuous data requests efficiently and reliably.
 ●​ Implemented an event-driven architecture using Apache Kafka to asynchronously
process and broadcast high-throughput spatial data updates, significantly
reducing overall API latency.

Advanced Data Structures & Compression | Academic Project | C++, Profiling

●​ Engineered custom, low-level data structures from scratch (including a Skip List and
Huffman Coding compression) to handle complex memory management and bitwise
operations.
●​ Rigorously profiled and benchmarked the application, demonstrating strong system-level
optimization skills by achieving search and insert times within 15% of the highly
optimized C++ Standard Library (std::map).
●​ Analyzed algorithmic complexity (Big O) to successfully balance time and space
efficiency for fundamental computing operations.

EDUCATION

Silesian University of Technology (Politechnika Śląska) | Gliwice, Poland Bachelor of
Science in Computer Science (Informatics) | Sep 2024 – Expected 2028

●​ Key Coursework: Algorithms & Data Structures, Fundamentals of Computer
Programming, Computer Architecture, Discrete Mathematics.

Polytechnic University of Valencia (UPV) | Valencia, Spain Erasmus+ Exchange Program |
Feb 2026 – Jul 2026

●​ Focus: Concurrency & Distributed Systems, Artificial Intelligence, Quantum Computing.

LANGUAGES

●​ English: Advanced (C1)
●​ Polish: Upper-Intermediate (B2 University Course)
●​ Ukrainian / Russian: Native
●​ German: Basic (A2)