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I'm Alena Demchenko, a software engineer with 8.5+ years of experience building enterprise and product web applications using React, Angular, TypeScript, and C#. I specialize in frontend development, application modernization, API integrations, performance optimization, and large-scale system maintenance. I'm passionate about delivering reliable, maintainable products and solving complex engineering challenges. I enjoy collaborating with product managers, designers, and engineers to ship features that users love and to improve existing systems.…I'm Alena Demchenko, a software engineer with 8.5+ years of experience building enterprise and product web applications using React, Angular, TypeScript, and C#. I specialize in frontend development, application modernization, API integrations, performance optimization, and large-scale system maintenance. I'm passionate about delivering reliable, maintainable products and solving complex engineering challenges. I enjoy collaborating with product managers, designers, and engineers to ship features that users love and to improve existing systems.

Alena Demchenko

Front-End Developer, Full Stack Developer, Web Developer, +2

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I'm Alena Demchenko, a software engineer with 8.5+ years of experience building enterprise and product web applications using React, Angular, TypeScript, and C#. I specialize in frontend development, application modernization, API integrations, performance optimization, and large-scale system maintenance. I'm passionate about delivering reliable, maintainable products and solving complex engineering challenges. I enjoy collaborating with product managers, designers, and engineers to ship features that users love and to improve existing systems.…I'm Alena Demchenko, a software engineer with 8.5+ years of experience building enterprise and product web applications using React, Angular, TypeScript, and C#. I specialize in frontend development, application modernization, API integrations, performance optimization, and large-scale system maintenance. I'm passionate about delivering reliable, maintainable products and solving complex engineering challenges. I enjoy collaborating with product managers, designers, and engineers to ship features that users love and to improve existing systems.

Available to hire

I’m Alena Demchenko, a software engineer with 8.5+ years of experience building enterprise and product web applications using React, Angular, TypeScript, and C#. I specialize in frontend development, application modernization, API integrations, performance optimization, and large-scale system maintenance.

I’m passionate about delivering reliable, maintainable products and solving complex engineering challenges. I enjoy collaborating with product managers, designers, and engineers to ship features that users love and to improve existing systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Russian

Fluent

English

Advanced

Work Experience

Software Development Engineer at Nova

January 1, 2024 - January 1, 2026

Investigated production issues and implemented fixes and optimizations, contributing to a 40% reduction in system errors. Migrated complex application modules from Angular to React, including reusable UI components, business workflows, and frontend services. Developed and maintained unit test coverage using Jest to ensure reliability and stability of migrated functionality. Modernized existing application workflows and UI components, improving consistency across desktop and mobile platforms. Collaborated with product managers, designers, and engineers to deliver new features and improve existing functionality.

Front End Engineer at Ornament Health

January 1, 2022 - January 1, 2024

Implemented new features and enhancements using Angular and TypeScript. Maintained and improved existing functionality, resolving bugs and supporting ongoing product development. Developed reusable UI components and improved application maintainability and user experience. Optimized data retrieval workflows and reduced unnecessary database interactions, decreasing load times of key admin pages by approximately 60%. Collaborated with product and engineering teams to deliver reliable and user-friendly solutions.

Software Development Engineer at Akvelon, Inc.

January 1, 2017 - January 1, 2024

Developed and maintained frontend applications using React, Angular, TypeScript, and JavaScript. Implemented new features, modernized existing functionality, and improved application performance and maintainability. Designed reusable UI components and integrated applications with internal and external services. Investigated and resolved complex production issues, ensuring application stability and reliability. Contributed to architecture discussions, code reviews, testing, and cross-team collaboration. Developed backend services and integrations using C#/.NET and worked with SQL and NoSQL databases. Collaborated with product managers and stakeholders to define requirements and deliver business-critical functionality. Conducted code reviews, mentored junior developers, and contributed to technical discussions and engineering best practices.