Arsen

Arsen
Vashcheniuk Full-Stack / Backend Engineer

Ukraine, Ivano-Frankivsk /flusett @flusett [відкрити контакти](див. вище в блоці «контактна інформація»)

ABOUT ME SKILLS

Backend/Full-Stack Engineer (23 y.o., 4.5+ CORE FRONTEND & CLIENT
years exp.) building production systems with Go, TypeScript, Vue.js, SolidJS, HTMX,
JavaScript, Dart, SQL Tailwind CSS, Flutter
Go, PostgreSQL, HTMX, and Tailwind CSS.
Built and operate Tivri (tivri.cc) end-to-end
on Linux VPS via Docker CI/CD pipelines. ARCHITECTURE & TOOLS
Focus on Clean Architecture, REST APIs, and REST APIs, gRPC, WebSockets, PostgreSQL, Redis,
maintainable system design RabbitMQ, Kafka, Docker, CI/CD

TIVRI LANGUAGES

Link: https://tivri.cc Ukrainian: Native Russian: Fluent
GitHub: https://github.com/FluSett/tivri English: Upper-Intermediate

WORK EXPERIENCE

02/2025 - TEGEM — FULL-STACK & BACKEND ENGINEER
06/2026 Managed full-stack architecture and automated workflows for a content web application
Built RESTful APIs and real-time data sync channels between client applications and
microservices
Integrated LLM APIs for asynchronous processing, data persistence, and background execution
queues
Authored custom Shell/Python scripts for database migration pipelines and local server setups

01/2024 – WEKNEW — BACKEND ENGINEER (GO)
01/2025 Engineered microservices and cloud-native backend components using Go
Designed concurrent data pipelines using Goroutines and Channels for async event
processing
Reduced API response latency and DB load via Redis caching and SQL query optimizations
Built RESTful and gRPC endpoints with Protocol Buffers; automated testing via CI/CD pipelines

08/2021 – MOBIDATOK — CLIENT-SIDE SOFTWARE ENGINEER
12/2023 Architected cross-platform client applications using Flutter & Dart
Designed modular application architecture with offline-first state synchronization
Collaborated with backend teams to establish API contracts and JSON data serialization
protocols
Built pixel-perfect, responsive UIs and fluid animations with custom design systems and
smooth state transitions