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Sasha LetkoSL
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Sasha Letko

@sashaletko

Full-stack Developer at ARMTEK who migrated an Angular application from version 16 to 20 and develops high-load Go services.

Belarus
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At ARMTEK, I developed Angular applications from scratch and within existing projects, and led an application migration from Angular 16 to Angular 20. I also designed microfrontend communication and laid the foundation for unit and end-to-end testing.

At ARMTEK, I developed high-load backend services in Go, designed backend architecture and database schemas, and integrated third-party services. I also worked extensively with Yandex Maps and developed and maintained a component library.

Previously, at Neatsoft, I built an Angular application from scratch and extracted components into Angular Elements for integration into third-party applications. I also built Go services for a high-load system and covered the application with end-to-end tests.

Experience

Work history, roles, and key accomplishments

SK

Angular Developer

Skillz

Dec 2021 - Jun 2023 (1 year 6 months)

Developed reusable UI components, wrote unit and e2e tests with Jest and Cypress, and integrated third-party services including Discord OAuth. Performed code reviews.

Education

Degrees, certifications, and relevant coursework

Belarusian State University of Informatics and Radioelectronics (BSUIR) logoBB

Belarusian State University of Informatics and Radioelectronics (BSUIR)

Bachelor's degree, Artificial Intelligence

2021 - 2025

Pursued a degree in Artificial Intelligence at the Faculty of Information Technologies and Control from September 2021 to July 2025.

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