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Oleksandr Yunoshev [open contact info](look above in the "contact info" section)

https://t.me/AlexYunoshev
Senior Frontend Developer
Lviv, Ukraine or remote [open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)

Frontend Developer with 4+ years of experience building complex, data-intensive web applications.
Specialized in real-time systems, interactive data visualization, and high-performance UI.
Focused on scalability, performance, and reliability in critical domains.

SKILLS
Frontend: Angular, TypeScript, RxJS, HTML, SCSS
Data & UI: Complex data tables, filtering systems, data visualization, charts
Architecture: Scalable frontend architecture, performance optimization, reusable components
Backend Integration: REST APIs, .NET integration experience
Tools: Git
EXPERIENCE
05.2022 - PRESENT SOFTWARE ENGINEER — MEDICAL & LABORATORY SYSTEMS
ISD Developed complex Angular applications for laboratory quality control systems (QC)
Full-time Built interactive data visualizations and charts for analyzing laboratory results (multi-level QC graphs,
statistical dashboards)
Implemented advanced data tables with filtering, grouping, and large dataset handling
Designed and structured scalable frontend architecture for complex modules
Handled state management for data-intensive components using RxJS
Worked with data-heavy workflows including QC validation, result tracking, and reporting systems
Contributed to migration of legacy WinForms desktop application to modern web-based Angular
platform
Optimized performance of complex UI components dealing with large volumes of medical data (10k+
records)
Ensured high reliability and accuracy of UI in critical healthcare workflows
Worked with and extended legacy WinForms (.NET) application (~30% workload)

Product: SoftTotalQC (Laboratory Quality Control System)
System used for managing and analyzing laboratory QC data
Includes statistical analysis, reporting, inventory, and validation workflows
Supports large datasets and complex domain logic

Angular, TypeScript, RxJS, REST APIs, WinForms (legacy), DevExpress

05.2025 - 12.2025 REAL-TIME TRADING INTERFACE
FREELANCE Developed as part of a commercial product with real users
Implemented real-time asset price updates via WebSocket
Integrated interactive charts (TradingView-like)
Built high-performance UI for streaming financial data
Handled high-frequency updates and optimized rendering performance
Developed advanced asset selection and filtering system
Contributed to development of a real-time financial data interface
Angular, TypeScript, RxJS, WebSocket, TradingView, REST APIs

09.2021 - 12.2021 WEB APPLICATION (TRAINING PROJECT)
ELEKS .NET CAMP Developed web application with authentication and recommendation features
Implemented basic social features: posts, likes, comments
Location-based search with automatic geolocation detection
ASP .NET Core, MS SQL, Entity Framework, xUnit, Moq

LANGUAGES
English — Upper-Intermediate Ukrainian — Native
EDUCATION
09.2018 - 06.2022 NATIONAL AEROSPACE UNIVERSITY "KHARKIV AVIATION INSTITUTE"
BACHELOR OF Field: 123 – Computer Engineering, Specialization: System Programming
COMPUTER Strong foundation in algorithms, data structures, and system design
ENGINEERING