V

Volha Zadziarkouskaya

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Java Backend Developer
BiaΕ‚ystok, WojewΓ³dztwo podlaskie, Poland
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Jobs verified_user 0% verified
  • Andersen Lab
    Java Trainee
    Andersen Lab
    Mar 2025 - Current (1 year 4 months)
    Designed and implemented critical APIs for internal/external systems, improving interoperability and reducing integration time by 30%. Optimized database operations and enforced consistency checks, cutting data-related errors by 30%. Collaborated with frontend, QA, and DevOps to deliver 15+ features on schedule, improving deployment frequency.
  • S
    Junior Java Developer
    SmartSoftAcademy
    May 2023 - Mar 2025 (1 year 11 months)
    Implemented secure authentication (JWT) and granular user access controls, reducing security incidents by 40%. Ensured high reliability through rigorous unit/integration testing (covered 85%+ of critical flows). Designed RESTful APIs for Booking Service, reducing integration time by 30% and enhancing system interoperability
  • I
    Process Engineer
    Information and Publishing Center for Taxes and Duties
    Jul 2015 - May 2023 (7 years 11 months)
    Implemented a real-time monitoring system for tracking the current status of cash register equipment.
  • T
    Database Administrator
    Tax and Duties Ministry Inspection of the Republic of Belarus
    Jan 2009 - Feb 2014 (5 years 2 months)
    Ensure the stability, security, and performance of the Tax Inspectorate's IT infrastructure, including servers, networks, and critical tax databases. Maintain systems, troubleshoot issues, implement security policies, and guarantee compliance with government regulations.
Education verified_user 0% verified
  • B
    Computer science teacher
    Belarusian State Pedagogical University Named after M.Tank
    Jan 2006 - Dec 2006 (1 year)
    Minsk, Belarus
  • B
    Teacher, social pedagogue
    Baranovichi State University
    Jan 2004 - Jul 2004 (7 months)
    Baranovichi, Belarus
Projects (professional or personal) verified_user 0% verified
  • P
    Public Transport Platform
    Sep 2025 - Current (10 months)
    🚌 An application for the public transport network of a major city in the Middle East, designed to enhance the quality of life for both residents and visitors. It offers greater mobility and accessibility, providing a seamless and convenient way to plan and navigate journeys using public transportation. Responsibilities πŸ‘¨πŸ’» Designed and implemented APIs for smooth system integrations πŸ”’ Built robust security and user access features πŸ—ƒοΈ Optimized database operations for flawless data consistency πŸ§ͺ Wrote comprehensive tests to validate all system functions πŸ†” Engineered secure authentication and authorization flows 🀝 Collaborated across teams (Frontend/QA/DevOps) πŸ” Conducted thorough code reviews and tech discussions πŸ”„ Actively particip
  • C
    CodeSensei
    Aug 2025 - Current (11 months)
    An Al-powered interactive learning platform for software developers, designed to guide learners through structured programming courses at their own pace. The system provides theory lessons, knowledge tests, and hands-on coding challenges with automated code execution and Al-driven code quality analysis. Features a personalized learning dashboard with skill progress tracking, Al-generated learning insights, and an intelligent coding assistant to support learners throughout their journey.
  • C
    Code Sensei
    Aug 2025 - Current (11 months)
    An AI-powered interactive learning platform for software developers, designed to guide learners through structured programming courses at their own pace. The system provides theory lessons, knowledge tests, and hands-on coding challenges with automated code execution and AI-driven code quality analysis. Features a personalized learning dashboard with skill progress tracking, AI-generated learning insights, and an intelligent coding assistant to support learners throughout their journey.
  • W
    Warehouse Management System
    Mar 2025 - Sep 2025 (7 months)
    🌍 A Warehouse Management System (WMS) developed to optimize warehouse operations across multiple countries. The primary goal of the system is to automate and streamline logistics processes, including goods receiving, storage, order picking, packaging, and shipping. Responsibilities πŸ› οΈ Designed, developed and maintained RESTful APIs to automate warehouse operations πŸ’» Wrote clean, modular and testable code following SOLID principles πŸ—ƒοΈ Worked with both relational and NoSQL databases for logistics data ⚑ Implemented smart caching strategies for peak performance πŸ”’ Secured APIs with modern authentication/authorization methods πŸ”„ Performed database schema migrations in CI/CD pipelines πŸ” Conducted static code analysis and fixed issues 🐳 Con
  • M
    Medicine Service
    May 2024 - Jun 2024 (2 months)
    🎯 This bot is designed for your convenience and offers a wide range of healthcare services. Below you will find a description of all available features: πŸ“… Schedule an Appointment with a Doctor You can schedule an appointment with any doctor at our clinic. Appointments are available both online πŸ’» and offline πŸ₯. πŸ’Š Pharmacy Services After visiting the doctor, you will receive a prescription πŸ“œ that can be filled at our pharmacy. You can also order medications πŸ’Š without a prescription. πŸ“ Find the nearest pharmacies using your geolocation. πŸ€– Ask a Question to AI Get instant answers from our AI assistant to help you make informed health decisions. πŸ‘€ Personal Account β€’ View all your appointments πŸ—‚οΈ and issued prescriptions. β€’ Track your
  • O
    Online Toy Store
    Mar 2024 - Apr 2024 (2 months)
    There is a prototype of the BackEnd Online Shop's Core Services data. Data consist of products, orders, order_details, users, users_info, roles, authorities, reviews, suppliers, promocodes.
  • H
    HouseHub
    May 2023 - Mar 2025 (1 year 11 months)
    🏨 A global accommodation booking platform designed to simplify and automate the process of searching, comparing, and reserving hotels, apartments, and vacation rentals. The system provides real-time availability, dynamic pricing, and instant booking confirmations for users worldwide. Responsibilities: β˜• Develop and maintain backend services for the booking platform using Java. βœ… Design and optimize RESTful APIs for search, booking, payment processing, and user management. πŸ”„ Implement real-time data synchronization for availability and pricing updates. ⚑ Ensure high performance, scalability, and security of the platform. πŸ“„ Write clean, efficient, and well-documented code following best practices. πŸ–₯️ Collaborate with frontend developer, Q