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I'm a results-driven Senior Software Engineer with 7+ years of experience building high-performance, scalable web applications using React.js, Next.js, Node.js, and Google Cloud Platform. I have a proven track record leading complex migrations, dramatically improving Core Web Vitals, and delivering revenue-generating, AI-powered features at scale. I bring a strong background in system design, microservices architecture, and cross-functional team leadership. I enjoy turning hard problems into robust, maintainable solutions, mentoring teammates, and shipping delightful user experiences.…I'm a results-driven Senior Software Engineer with 7+ years of experience building high-performance, scalable web applications using React.js, Next.js, Node.js, and Google Cloud Platform. I have a proven track record leading complex migrations, dramatically improving Core Web Vitals, and delivering revenue-generating, AI-powered features at scale. I bring a strong background in system design, microservices architecture, and cross-functional team leadership. I enjoy turning hard problems into robust, maintainable solutions, mentoring teammates, and shipping delightful user experiences.

alexeybortnytskyi245

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

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I'm a results-driven Senior Software Engineer with 7+ years of experience building high-performance, scalable web applications using React.js, Next.js, Node.js, and Google Cloud Platform. I have a proven track record leading complex migrations, dramatically improving Core Web Vitals, and delivering revenue-generating, AI-powered features at scale. I bring a strong background in system design, microservices architecture, and cross-functional team leadership. I enjoy turning hard problems into robust, maintainable solutions, mentoring teammates, and shipping delightful user experiences.…I'm a results-driven Senior Software Engineer with 7+ years of experience building high-performance, scalable web applications using React.js, Next.js, Node.js, and Google Cloud Platform. I have a proven track record leading complex migrations, dramatically improving Core Web Vitals, and delivering revenue-generating, AI-powered features at scale. I bring a strong background in system design, microservices architecture, and cross-functional team leadership. I enjoy turning hard problems into robust, maintainable solutions, mentoring teammates, and shipping delightful user experiences.

Available to hire

I’m a results-driven Senior Software Engineer with 7+ years of experience building high-performance, scalable web applications using React.js, Next.js, Node.js, and Google Cloud Platform. I have a proven track record leading complex migrations, dramatically improving Core Web Vitals, and delivering revenue-generating, AI-powered features at scale.

I bring a strong background in system design, microservices architecture, and cross-functional team leadership. I enjoy turning hard problems into robust, maintainable solutions, mentoring teammates, and shipping delightful user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Spanish; Castilian

Intermediate

Ukrainian

Fluent

Russian

Fluent

Work Experience

Senior Software Engineer at Inetum

April 1, 2025 - October 1, 2025

Architected and modernized core modules for the enterprise Iberdrola project, ensuring high scalability and long-term system stability. Led refactoring of legacy applications, improving maintainability and reducing technical debt by enforcing modern React/Node.js component-based architecture. Optimized Core Web Vitals and load times by implementing advanced rendering strategies, significantly accelerating team delivery velocity.

Senior Software Engineer at Splore & Kronis

April 1, 2024 - February 1, 2025

Spearheaded architectural migration to React and Next.js, achieving a 60% reduction in server requests and a 45% boost in overall site performance. Engineered integration of the Gemini AI platform via Google Cloud (GCP), successfully delivering 3+ new AI-driven product features. Optimized critical data-table rendering for 10,000+ records, slashing application load time from 24s to 1.8s (0.4s initial availability via lazy loading).

Software Engineer at Freelance / Contract

April 1, 2023 - July 1, 2024

Directed end-to-end front-end development of a highly performant user interface, driving the product’s critical transition from beta to a stable production launch. Delivered a market-ready solution that gained industry recognition and was showcased at Creator Week in Singapore. Acted as Technical Lead overseeing project delivery, architectural decisions, and cross-functional client communications. Managed and mentored a distributed team of 4+ developers, overseeing the end-to-end lifecycle of multiple client web applications. Engineered a comprehensive operational dashboard for a major national restaurant chain. Integrated secure third-party payment gateways and robust user authentication flows.

Software Engineer at Investables

April 1, 2022 - June 1, 2022

Engineered reusable UI components documented in Storybook, driving a 40% improvement in frontend rendering performance. Integrated Web3 capabilities via MetaMask, enabling secure on-chain crypto transactions.

Software Engineer at NeonPilots & Change Block

October 1, 2021 - April 1, 2022

Led the frontend architecture of the primary application dashboard, providing critical data insights to end users.

Software Engineer at Freelance

January 1, 2019 - October 1, 2021

Delivered custom landing pages and full-scale web applications for an international client base across North America and Europe.