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Schedule Interview NowMy name is Kostya Z. and I have over 2 years years of experience in the tech industry. I specialize in the following technologies: React, TypeScript, JavaScript, MongoDB, node.js, etc.. I hold a degree in Bachelor of Computer Science (BCompSc), Master of Computer Science (MSCS). Some of the notable projects I’ve worked on include: Lumahue – Secure Medical Onboarding Platform for Doctors and Patients, Detector Maps – Scalable Mapbox GL JS Platform for Real-Time Insights, Netball – Admin Panel for Managing Football Matches, ThreeFive – Scalable Authentication and User Management System, EvoHire – AI-Powered Recruitment Management Platform, etc.. I am based in Lviv, Ukraine. I've successfully completed 21 projects while developing at Softaims.
Information integrity and application security are my highest priorities in development. I implement robust validation, encryption, and authorization mechanisms to protect sensitive data and ensure compliance. I am experienced in identifying and mitigating common security vulnerabilities in both new and existing applications.
My work methodology involves rigorous testing—at the unit, integration, and security levels—to guarantee the stability and trustworthiness of the solutions I build. At Softaims, this dedication to security forms the basis for client trust and platform reliability.
I consistently monitor and improve system performance, utilizing metrics to drive optimization efforts. I’m motivated by the challenge of creating ultra-reliable systems that safeguard client assets and user data.
Main technologies
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Lumahue is a web platform designed to streamline the onboarding and interaction process between certified medical professionals and patients in Ireland. The application enables healthcare providers to register with validated credentials, while patients can sign up, describe their symptoms, and search for appropriate specialists. The goal was to create a secure and government-compliant digital health portal.
This project is an interactive mapping platform designed to help users visualize and explore detection data in real time. The application uses Mapbox GL JS for rendering high-performance vector maps, offering smooth navigation and dynamic interaction with spatial data.The platform also includes user-friendly tools for managing visibility settings, selecting map styles, and adjusting layer parameters. The real-time data rendering is powered by efficient data fetching strategies and optimized state management.
Netball is an administrative platform designed to streamline football match management through a centralized system for scheduling games, managing team rosters, and overseeing field availability. The platform was built with React.js, Redux, Node.js, TypeORM, MySQL, and AWS, ensuring a scalable, high-performance, and reliable solution.
ThreeFive is a robust backend solution designed to provide secure authentication, user management, and transactional email services for modern web applications. Built with NestJS and TypeScript, it offers a high-performance infrastructure for handling authentication workflows, profile management, and email communications.
This project is a platform designed to simplify the management of recruitment campaigns. The main feature of the platform is its interactive dashboard, which displays active job vacancies. Users can view, create, and manage these vacancies with ease. The platform also incorporates robust authentication using Auth0, ensuring secure access for users.
Bachelor of Computer Science (BCompSc) in Computer science
2013-01-01-2017-01-01
Master of Computer Science (MSCS) in Computer engineering
2017-01-01-2019-01-01