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Work experience

Backend Developer

from 06.2025 to 01.2026 (8 months)
DHelp, Дистанційно (IT)

Developed backend domain logic for vehicle coordination, driver assignment, and logistics workflows, supporting dozens of concurrent operations.
Designed and maintained REST API contracts for fleet management, telemetry ingestion, assignments, and access control, enabling consistent data exchange
across services.
Implemented a real-time IoT telemetry pipeline, processing continuous vehicle updates every few seconds and converting them into operational logistics signals.
Introduced role-based access control (RBAC) using JWT and Passport.js, separating permissions for volunteers, drivers, coordinators, and military operators.
Applied Redis caching and database query optimization, reducing p95 response times by ~25–35% on high-traffic endpoints.
Expanded automated test coverage for business-critical flows, significantly reducing production regressions during active operations.
Supported production stability during live missions by deploying hotfixes and regression-tested changes without service interruption.

Fullstack Developer

from 10.2023 to 11.2024 (1 year 2 months)
AIESEC, Дистанційно (Освіта, наука)

Helped ship an internal automation platform adopted by 5+ local AIESEC teams, replacing manual recruitment coordination via spreadsheets and chats.
Automated lead intake, status transitions, reminders, and reporting flows, reducing manual coordinator effort by ~30–40% during active recruitment cycles.
Built and maintained Node.js backend services processing hundreds of candidate interactions per month across multiple recruitment campaigns.
Implemented multi-channel messaging bots (Telegram, WhatsApp, Messenger), increasing candidate reply rate and reducing average response latency from hours to minutes for engaged candidates.
Designed event-driven webhook workflows to process external messaging events asynchronously, improving delivery reliability and preventing request blocking.
Refactored legacy logic into modular services, reducing time to implement new recruitment flows from days to hours.
Integrated Google Sheets and external APIs to generate near-real-time dashboards, eliminating manual report preparation for coordinators.
Delivered backend-driven landing pages and microsites used to collect structured candidate data during recruitment campaigns.

Fullstack Developer

from 03.2023 to 08.2023 (6 months)
AMASALE, Дистанційно (IT)

Developed authentication, product, order, and user API modules using Node.js and NestJS, implementing JWT authentication, role-based access control (RBAC), request validation, and centralized error handling
Built authentication and authorization module with JWT access and refresh tokens, supporting login, registration, and protected routes for admin and customer roles
Improved product list and order history endpoints by analyzing slow queries with pgAdmin and optimizing joins and indexes, resulting in more stable and faster API responses
Integrated Stripe checkout and payment module using Stripe API, handling payment intent creation, confirmation, and basic error scenarios
Developed frontend pages including product listing, product details, cart, and checkout using React, TypeScript, and Tailwind CSS, focusing on responsive layout and clear user flow
Implemented cart and checkout UI logic in React, managing state updates, form validation, and API error feedback
Wrote unit and integration tests for authentication and product API routes using Jest and Supertest, verifying authorization rules, request validation, and error responses
Provided post-launch support, fixing bugs, adjusting business logic, and implementing small feature updates to maintain platform

Education

Lublin University of Technology

Software Engineer, Львів
Higher, from 2022 to 2026 (4 years)

Knowledge and skills

• Git
• HTML
• JavaScript
• SQL
• GitHub
• PostgreSQL
• Docker
• REST API
• Node.js
• React
• TypeScript
• MySQL
• CI/CD
• NestJS
• Express.js
• Prisma ORM
• Figma
• Swagger
• Redis
• Старанність
• MongoDB
• JSON
• Vanilla JS
• TypeORM
• Prisma
• AWS
• React Native
• Backend-розробка
• Frontend-розробка
• Stripe
• Web Scraping
• Puppeteer
• Cloudflare
• Firewalls
• SSL
• TLS
• Performance optimization
• ESLint
• Jest
• JSON Web Token
• CSS
• Користувач ОС Linux
• MySQL Workbench
• GitLab
• SASS
• React Router
• React Redux
• Відповідальність
• Самостійність

Language proficiencies

• English — above average
• Polish — advanced