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Hi, I'm Oleksandr Mykhalchuk, a Senior Full-Stack Engineer based in Ternopil, Ukraine. I specialize in building scalable, API-driven web applications using React, TypeScript, Node.js, and Python, with cloud-native deployments on AWS, Google Cloud, and Azure. I’ve led AI/LLM integration initiatives and collaborated with cross-functional teams to ship robust features for high-traffic platforms. I enjoy transforming complex requirements into clean, testable solutions, mentoring teammates, and driving improvements through data-driven decisions. In fast-paced remote environments, I’ve helped set architectural direction, design secure data pipelines, and deliver dashboards and tooling that boost productivity and user engagement.…Hi, I'm Oleksandr Mykhalchuk, a Senior Full-Stack Engineer based in Ternopil, Ukraine. I specialize in building scalable, API-driven web applications using React, TypeScript, Node.js, and Python, with cloud-native deployments on AWS, Google Cloud, and Azure. I’ve led AI/LLM integration initiatives and collaborated with cross-functional teams to ship robust features for high-traffic platforms. I enjoy transforming complex requirements into clean, testable solutions, mentoring teammates, and driving improvements through data-driven decisions. In fast-paced remote environments, I’ve helped set architectural direction, design secure data pipelines, and deliver dashboards and tooling that boost productivity and user engagement.

Oleksandr Mykhalchuk

Full Stack Developer, Front-End Developer, Web Developer, +4

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Hi, I'm Oleksandr Mykhalchuk, a Senior Full-Stack Engineer based in Ternopil, Ukraine. I specialize in building scalable, API-driven web applications using React, TypeScript, Node.js, and Python, with cloud-native deployments on AWS, Google Cloud, and Azure. I’ve led AI/LLM integration initiatives and collaborated with cross-functional teams to ship robust features for high-traffic platforms. I enjoy transforming complex requirements into clean, testable solutions, mentoring teammates, and driving improvements through data-driven decisions. In fast-paced remote environments, I’ve helped set architectural direction, design secure data pipelines, and deliver dashboards and tooling that boost productivity and user engagement.…Hi, I'm Oleksandr Mykhalchuk, a Senior Full-Stack Engineer based in Ternopil, Ukraine. I specialize in building scalable, API-driven web applications using React, TypeScript, Node.js, and Python, with cloud-native deployments on AWS, Google Cloud, and Azure. I’ve led AI/LLM integration initiatives and collaborated with cross-functional teams to ship robust features for high-traffic platforms. I enjoy transforming complex requirements into clean, testable solutions, mentoring teammates, and driving improvements through data-driven decisions. In fast-paced remote environments, I’ve helped set architectural direction, design secure data pipelines, and deliver dashboards and tooling that boost productivity and user engagement.

Available to hire

Hi, I’m Oleksandr Mykhalchuk, a Senior Full-Stack Engineer based in Ternopil, Ukraine. I specialize in building scalable, API-driven web applications using React, TypeScript, Node.js, and Python, with cloud-native deployments on AWS, Google Cloud, and Azure. I’ve led AI/LLM integration initiatives and collaborated with cross-functional teams to ship robust features for high-traffic platforms.

I enjoy transforming complex requirements into clean, testable solutions, mentoring teammates, and driving improvements through data-driven decisions. In fast-paced remote environments, I’ve helped set architectural direction, design secure data pipelines, and deliver dashboards and tooling that boost productivity and user engagement.

Skills

Experience Level

Expert

Expert

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Expert

Language

Ukrainian

Fluent

English

Fluent

Work Experience

Front-End Developer at idev Co.

June 20, 2019 - October 28, 2025

Developed modern, dynamic, and highly responsive user interfaces using React and Next.js, delivering smooth, interactive web experiences across devices. Implemented responsive design to ensure seamless UX on desktop, tablet, and mobile, optimizing layouts, navigation, and visuals for cross-device consistency. Collaborated with back-end developers to integrate front-end components with server-side logic and RESTful APIs.

Senior Full Stack Developer at Teamvoy

April 1, 2023 - October 31, 2025

Led the end-to-end development of complex full-stack features for high-traffic SaaS and eCommerce platforms using Symfony, PostgreSQL, and React, ensuring scalability and maintainability. Architected and implemented secure authentication systems, data pipelines, and RESTful APIs powering client-facing apps with high performance and reliability. Collaborated with distributed teams in Agile sprints, driving technical planning, code reviews, and best practices to maintain clean, high-quality codebases. Enhanced development efficiency by improving Docker-based environments and implementing automated testing workflows with Cypress and PHPUnit.

Full Stack Developer (PHP/Laravel & Angular) at GBSFO

June 1, 2019 - October 31, 2025

Led the migration of multiple legacy PHP applications to modern Symfony and Laravel frameworks, improving performance, maintainability, and code modularity. Implemented OAuth and SAML SSO authentication across company systems; enhanced UI/UX; built Angular-based dynamic interfaces; collaborated with UI/UX teams. Improved backend efficiency using Redis caching and RabbitMQ for background job processing and real-time task handling. Collaborated with cross-functional teams, practiced Git workflows, code reviews, and agile planning to maintain high-quality codebases.

UI/UX Designer & Front-End Developer (Intern) at Vention

June 1, 2018 - May 29, 2019

Designed and refined wireframes, prototypes, and interactive mockups using Figma, Sketch, and Adobe XD; improved user workflows across the product; contributed to prototypes and design iterations. Assisted in front-end implementation using HTML5, CSS3, and React. Contributed to achieving a measurable improvement in user task efficiency (approx. 20%).

Senior Full-Stack Developer at TeamVoy

April 20, 2023 - October 31, 2025

Led end-to-end development of scalable RESTful APIs and backend architecture using Node.js and PostgreSQL, achieving 40% performance improvements and 20% faster API responses. Implemented AI-driven analytics for predictive insights, location intelligence, and real estate data modeling. Deployed AI chatbots across Slack, WhatsApp, and Telegram to automate customer interactions and personalize user experiences. Managed cross-functional teams, collaborating with data scientists, UX/UI designers, and product managers. Set up CI/CD pipelines and automated testing, ensuring reliable production-ready releases. Researched and applied emerging AI, ML, and PropTech innovations to stay competitive.

Senior Full-Stack Developer at Kanda Software

October 1, 2019 - October 31, 2025

Led development of complex full-stack features for high-traffic SaaS and eCommerce platforms using Symfony, React, and PostgreSQL, ensuring scalability and maintainability. Architected and implemented secure authentication systems, data pipelines, and RESTful APIs powering client-facing apps. Optimized backend performance with Redis caching and RabbitMQ for background jobs; implemented CI/CD workflows and automated testing. Collaborated with UI/UX team to build Angular-based dynamic interfaces.

Full-Stack Developer at GBSFO

June 1, 2019 - October 31, 2025

Led the migration of multiple legacy PHP applications to modern Symfony and Laravel frameworks, improving performance, maintainability, and code modularity. Implemented OAuth and SAML SSO authentication across corporate systems. Built Angular-based dynamic interfaces integrated with backend APIs. Optimized backend throughput using Redis caching and RabbitMQ for background processing and real-time tasks.

UI/UX Designer & Front-End Developer (Intern) at Vention

June 20, 2018 - October 31, 2025

Designed and refined wireframes, prototypes, and interactive mockups using Figma, Sketch, and Adobe XD. Improved user workflows and visual consistency across products, contributing to a significant increase in user task efficiency. Assisted with frontend implementation and collaborated with cross-functional teams to deliver cohesive UI.

Senior Engineer at BNP Paribas France

November 1, 2023 - Present

Contributed to AI integration and data-driven features; designed data pipelines; collaborated with cross-functional teams; led agile ceremonies; delivered dashboards and enhancements; improved product roadmap execution.

Senior Full-Stack Engineer at Inoxoft Ukraine

July 1, 2020 - November 1, 2023

Built core features for the Motors.co.uk platform using React/Next.js, TypeScript, Node.js, PostgreSQL, Redis; improved search and filtering with Elasticsearch; designed secure APIs and data pipelines; led AI/LLM integration initiatives and end-to-end ownership of AI features; migrated legacy frontend/backend to modular, testable services; led agile ceremonies and cross-functional planning.

Full Stack Engineer at Inoxoft Ukraine

October 1, 2018 - July 1, 2020

Led core feature development for InstallerAnalytics using React, TypeScript, Node.js, PostgreSQL, AWS; built interactive dashboards and reports; optimized REST APIs and data flows; contributed to data analytics surfaces via dashboards and automated reports; collaborated with product and data teams to implement tracking and analytics; prepared refactoring of legacy frontend/backend components into modular services.