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OLGA GOLOVASH
FULL STACK DEVELOPER
Backend (Python, Java, Spring framework) Frontend (JavaScript, TypeScript, React, Redux)
📝 Please reach out to me via WhatsApp or email
Phone: [открыть контакты](см. выше в блоке «контактная информация») WhatsApp: https://wa.me/380632327150
Email: [открыть контакты](см. выше в блоке «контактная информация»)
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Github: https://github.com/OlBreeze Languages: English (Intermediate+), Ukrainian, Russian

Full Stack Developer specializing in Python, Java, Spring (Boot, Security) and frontend technologies Next.js, React, Redux. Full-cycle development experience, covering both backend and frontend components. Experience in working with relational and NoSQL databases.
Skills Summary
Programming Languages: Python, Java, JavaScript, TypeScript, React, Redux, Delphi, 1C, SQL, PL/SQL
Web: JavaScript, TypeScript, jQuery, Node.js, Next.js
Frameworks: Django, Flask, Spring, Spring Boot, Maven, Hibernate, Lombok, Rest API, JUnit
IDEs /Tools: Eclipse, IntelliJ IDEA, WebStorm, VS Code, GitHub, Postman
Databases: Oracle, MySQL, PostgreSQL, MongoDB, Firebase
Additional: PowerDesigner, Jira, Photoshop, Figma
My book "Oracle 9i Administration": book-oracle-9i-admin
Professional Experience
• Full Stack Developer, Optisor LTD (Rehovot, Israel)2022-present time
Farm Products & Inventory — Java, Spring, React Designed and developed a web platform providing a database of local Belgian farmers. Built registration and authorization using Spring Security and JWT, created responsive UI components with React, and managed data via PostgreSQL.
Implemented logging, testing, and ETL processes between multiple systems.
Tools: Java, Spring Boot, Hibernate, PostgreSQL, Docker, JUnit, React, TypeScript
Farm Delivery & Logistics — Python, Django REST, Docker Backend for local farmers delivery platform: manage customer orders, track delivery status, optimize routes, and handle user accounts with role-based JWT authentication. Docker containerization and comprehensive API documentation via Swagger. Added filtering, search, and pagination using Django REST Framework.
Tools: Python, Django, DRF, JWT, Swagger, PostgreSQL, Docker, Pytest
File Monitoring System — Python, FastAPI, JWT Built a microservice system to monitor local directories, extract file metadata, and securely transmit data between services using JWT-authenticated REST communication.
Tools: Python, FastAPI, JWT, Docker, Watchdog, Logging, Unit tests
Full Stack Developer, INTERTOOL2019-2022
Maintaining existing functionality and developing new data exchange services between distributed ERP modules (Java, php). This includes: collecting statistical data from clients, analyzing and storing this information in the DB, transferring analytics to the accounting department, generating summary reports, integration with the external Bitrix system. Built a full-stack feature for processing external parking data: backend services handled data ingestion and analytics, while the frontend displayed insights on the website and triggered automated email summaries for managers. Actively communicating with clients to clarify requirements, and preparing technical specifications and work plans.
Tools: Java, Spring, JavaScript, TS, React, Redux, Next.js GitHub, JUnit Tests, MySQL, Mongo
• Software Developer 1C, IT-LANCE (Kiev, Ukraine)2016-2019
Developer for the 1C accounting program and improved the operations of about 15 companies while working in a franchise of 1C. Optimization of requests, preparation of technical tasks, creation of accounting and logistics reports and convenient data processing. Connection and configuration of peripheral equipment. Experience in preparing detailed technical specifications and work plans, communication skills with clients, including gathering and analyzing requirements.
Tools: 1C, MySQL, PowerDesigner, VS Code, GitHub, Bitrix24, Postman, HTTP Services, FTP, JSON
• ORACLE DBA, Kharkiv Regional Energy Administration (Ukraine)2006-2016
Administered enterprise Oracle database systems (8i/9i/11g) managing terabyte-scale data volumes with 500+ concurrent users. Implemented comprehensive backup and recovery strategies including daily hot/cold backups, RMAN configurations, and disaster recovery procedures. Worked with Oracle Data Pump (expdp/impdp) for data export/import and backup tasks. Optimized database performance through query tuning, index optimization, and execution plan analysis, achieving average 30-40% improvement in query response times. Monitored system health using Oracle Enterprise Manager (OEM), AWR reports, and custom monitoring scripts. Performed regular maintenance tasks including statistics gathering, space management, and performance tuning. Automated critical business processes eliminating manual errors and improving efficiency.
Database Technologies: Oracle Database 8i/9i/11g, Oracle Data Pump, RMAN, SQL*Plus
Scripting & Automation: PL/SQL, SQL, Bash scripting, cron scheduling

Education
MSc in Computerized aircraft systems2000-2006
National Aerospace University, Ukraine