Дмитро

DMYTRO ROMANYUK
Fullstack developer
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Bielsko-Biala, Poland

Profile

FullStack Developer with 3.5+ years of experience specializing in TypeScript, React, and NestJS. Capable
of handling the full development cycle, from database design to frontend implementation and deployment.
Experienced in building scalable web applications, optimizing database queries, and integrating various
third-party APIs. Dedicated to writing clean, maintainable code and delivering reliable solutions to meet
business needs.

EXPERIENCE

08/2024 – Current Approve Leads [NDA], Full Stack Developer
Kyiv Full-Cycle Development: Successfully delivered end-to-end features — from
•

backend architecture to frontend implementation — demonstrating the
ability to work autonomously and make independent technical decisions
when required.
• Team Collaboration & Code Quality: Provided code reviews, technical
guidance, and support to junior developers involved in adjacent internal
projects, helping maintain consistent coding standards and architectural
quality.
Frontend & Data Visualization: Engineered high-performance analytical
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dashboards capable of rendering massive datasets without performance
lags. Implemented complex interactive data grids and real-time charts for
traffic monitoring, ensuring intuitive UX and strict validation in multi-step
configuration forms. Successfully refactored and modernized legacy frontend
modules, migrating outdated components to modern React standards,
which significantly reduced technical debt and improved maintainability.
Complex API Integrations: Architected a unified data ecosystem by
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integrating numerous third-party services (trackers, affiliate networks,
payment gateways), ensuring seamless data synchronization.
High-Load Traffic Automation: Engineered asynchronous workflows for
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processing massive traffic volumes with minimal latency, utilizing message
queuing patterns to ensure system stability.
Advanced Analytics & Security: Built custom fraud detection algorithms and
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real-time analytical dashboards, allowing the business to monitor
advertising campaigns and filter low-quality traffic instantly.
Environment & Stability: Utilized Docker for containerization to ensure
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consistent development environments and reliable application performance.
 Stack: TypeScript, NestJS, React, PostgreSQL, MongoDB, TypeORM, Redis,
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RabbitMQ, Zod.

08/2022 – 07/2024 YourItSoft, Full Stack Developer
Ukraine/Ternopil Contact Center CRM: Engineered a comprehensive CRM system with React
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and NestJS, implementing Role-Based Access Control and multilingual
support.
Automation & Bots: Developed a Viber Chatbot for meter readings and
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automated IVR call routing, reducing support workload by 30%.
Business Logic & API: Optimized RESTful APIs for mass messaging and
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client identification, increasing operator efficiency by 50%.
Solar Energy System: Built server-side logic for billing calculations and
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created interactive frontend widgets for data visualization.
Gov Website: Ensured WCAG accessibility compliance (contrast, font
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scaling) and automated data sync between the web platform and Google
Sheets API.

EDUCATION

2013 – 2020 Ternopil specialized school of I-III degrees No. 5 with in-depth study of
Ukraine/Ternopil foreign languages

SKILLS

Frontend: Backend:
JavaScript, Typescript, ReactJs, NextJs, MUI, NestJs, NodeJs, PostgreSQL, MongoDB,
Styled-components, React-hook-form, React- TypeORM, Zod, RabbitMQ(AMQP)
query, Zustand, Swiper, Framer-Motion
Integrations & API
DevOps, Testing & Tools: RESTful APIs, Swagger, Telegram Bot API, Viber
Docker, Git (GitHub/GitLab/BitBucket), API, Google APIs (Sheets/Drive),
CI/CD(basics), Jest, Playwright(basics), Vite, WayForPay(Payment Gateway)
Postman.

LANGUAGES

English Polish
B1+ A2

Ukranian
Native