Софія

Sofiia Zorina
Junior Full Stack / Backend Developer (JavaScript, Node.js, PostgreSQL)
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Malyn, Ukraine
GitHub: https://github.com/sonv1x

Summary
Junior Backend / Full Stack Developer specializing in Node.js, Express, PostgreSQL, and
React. Experienced in backend architecture, Docker deployment, relational database design,
and IoT communication via MQTT. Passionate about solving engineering problems and building
scalable backend systems.

Professional Experience
IT Systems Intern | PGP Glassworks (ТОВ «Пісківський завод
скловиробів»)
03/2026 – 04/2026 | Piskivka, Kyiv region, Ukraine
● Completed a technical internship at an active manufacturing facility, working with the
corporate Access Control System (ACS).
● Administered digital employee profiles and managed the issuance of electronic RFID
cards.
● Conducted a systems integration audit and designed an architectural solution: a software
API gateway for automatic synchronization of the ACS database with accounting
software.
● Developed an IT security modernization plan, proposing the implementation of cloud
backups and biometric identification.

Freelance IT Hardware Specialist & Consultant
2022 – Present
● Assembled, configured, and tested high-end custom desktop computers for clients,
working closely with top-tier hardware components (e.g., NVIDIA RTX 30/40 series).
● Designed and installed advanced thermal management solutions, including both custom
water-cooling loops and high-performance air cooling towers.
● Provided expert technical consulting regarding the optimal selection and configuration of
laptops, desktop PCs, and smartphones based on client performance requirements and
budgets.

Sales Consultant Intern | Mobile Trend
02/2026 | Ukraine
● Consulted clients on smartphones, hardware specifications, and tech accessories.
● Applied deep technical knowledge of hardware components to assist users in selecting
 the best devices for their needs.

Freelance Backend Developer & Technical Mentor
09/2022 – 05/2026
● Provided freelance technical mentoring and programming assistance across computer
science disciplines.
● Assisted students with backend development, database architecture (SQL), algorithms,
and software engineering assignments.
● Prepared comprehensive technical documentation, software design artifacts, and
architectural diagrams (UML).
● Collaborated with an academic author to draft, structure, and edit technical papers and
diploma reports according to strict institutional guidelines.

Projects
Smart Home Alternative Energy Supply System (Diploma Project)
Stack: Node.js, PostgreSQL, Docker, MQTT, C++, ESP32 | 02/2026 – 05/2026
● Researched and implemented an alternative energy supply solution in a "Smart Home"
ecosystem (Diploma project graded 92/100).
● Designed and deployed a relational database for storing time-series data using
PostgreSQL/TimescaleDB.
● Developed the backend using Node.js and configured real-time data exchange via MQTT.

Molfar Library OS (Full-Stack Coursework Project)
Stack: React.js, Node.js, Express, PostgreSQL, Sequelize, Docker
● Developed a comprehensive, N-tier library automation ecosystem for a local community.
● Designed a complex relational database model ensuring transaction reliability (ACID
principles) to prevent simultaneous booking conflicts.
● Implemented a custom "Audit System" middleware to track systemic actions, manage fine
logic, and monitor the integrity of JS code files.
● Integrated Role-Based Access Control (RBAC) supporting differentiated functionality for
administrators, librarians, and standard readers.

Education
Bachelor of Computer Science (Specialty 122)
Private Higher Educational Establishment "European University" | 09/2022 – 06/2026 | Kyiv,
Ukraine
● Faculty of Information Systems and Technologies.
● Average Grade: 84.0 | Academic Excellence Award for Diploma Project.
Skills
Category Technologies & Concepts
Backend & API JavaScript, Node.js, Express.js, REST API,
JWT, Microservices
Databases SQL, PostgreSQL, TimescaleDB, MS SQL
Server, PostGIS, Sequelize
Frontend HTML/CSS, React.js, State Management,
Dynamic Dashboards
Hardware & IT Custom PC Assembly, Water/Air Cooling
Systems, Hardware Diagnostics (NVIDIA 30/40
Series)
DevOps & IoT Linux, Git, Docker, Docker Compose, MQTT,
C++ (Basic), ESP32
Tools & Methodologies UML, OOP, QGIS, Product Management basics
Languages
● Ukrainian: Native
● English: Pre-Intermediate (A2) / Technical Reading

Courses & Certifications
● Product Management in IT - Genesis, KSE, EdEra (2025)
● CS50: Introduction to Artificial Intelligence with Python - Prometheus (2025)
● IT Product Creation, Development, and Marketing - Genesis, KSE, EdEra (2023)