Node.js Software Engineer with 14+ years of experience specializing in backend development, microservices architecture and performance optimization (backend + frontend). Proficient in transforming monolithic systems into robust, scalable services, including video transcoding, 4K content optimization, and advanced API development with webhooks and SSO. Skilled in integrating cutting-edge technologies like GPT and ensuring enterprise-grade security, including SOC 2 compliance.Also have deep experience with frontend (React, Vue), but I'm not as proficient in deep HTML/CSS layout.Experienced with Express.js, Fastify, and NestJS, leveraging PostgreSQL, Redis, and LXD/Docker containers to deliver high-quality solutions across industries. Key projects include complex video builder, video transcoding system, mobile apps for sports activities and e-commerce, a real-time chat system, and a comprehensive support platform with multi-channel communication. Passionate about building innovative solutions and driving business success.My English level is intermediate.
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Full-Stack Javascript EngineerElai.Io May 2022 - Dec 2024Stack: Node.js, Express.js, MongoDB, and React Accomplished in transforming monolithic backend systems into separated services, including task dispatcher for different sources and implementing video transcoding with ffmpeg for various media types. I was also involved in optimizing rendering for 4K content and animations, as well as adding custom font support. Developed a robust public API with webhooks and integrated Single Sign-On functionality tailored for enterprise security and user convenience. Additionally, integrated GPT for advanced functionality. Proficient in CI/CD and various DevOps tasks, including AWS/Azure environments. Provided crucial support during penetration testing, ensuring compliance with SOC 2 standards and addressing identified vulnerabilities. -
Software EngineerLyvit Group Feb 2017 - Jan 2022Odessa, UkraineNode.js, Android, webdev, DevOpsWorked on the backend using Express.js, Fastify, and NestJS, with PostgreSQL and Redis, building microservices and services hosted in LXD containers. The projects included a mobile app for finding sports activities and a vitamin store. Additionally, developed an MVP Android application independently. Contributed to implementing a real-time chat feature using WebSockets.
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Software DeveloperFlames Group Fze Nov 2015 - Jan 2017Chernihiv, UkraineNode.js, PostgreSQL, Angular.jsDeveloped a support system for users and support agents, enabling communication via web for users and through web, Jabber, and a desktop application built with Electron for support agents. -
Full-Stack DeveloperFreelance Oct 2012 - Oct 2015Node.js, Vue, Angular.js, PostgreSQL, webrtc, nginx modules, ffmpeg
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Software EngineerFlames Group Fze Jan 2012 - Sep 2012Chernihiv, UkraineJava, C++, webdev
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Software EngineerSoftindustry Ltd Sep 2010 - Jan 2012Chernihiv, Ukraine.NET
Viktor Konovalov Education Details
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Computer Science
Frequently Asked Questions about Viktor Konovalov
What is Viktor Konovalov's role at the current company?
Viktor Konovalov's current role is Backend Engineer | Node.js.
What schools did Viktor Konovalov attend?
Viktor Konovalov attended Chernihiv State Technological University.
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