Hanna Vasylieva
Full Stack Engineer @Al Tech Labs Ltd
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WORK HISTORY
Full Stack Engineer @Al Tech Labs Ltd
Montreal, QC, CA
Developed and maintained responsive web applications, improving page load speed by up to 30% through performance optimization techniques.• Built and maintained 20+ reusable UI components, adhering to WCAG accessibility standards and design system guidelines.• Implemented mobile-responsive layouts across all major browsers, ensuring 100% cross-browser compatibility.• Contributed to the development and maintenance of RESTful APIs using Node.js and Express.js, enhancing backend performance and scalability.• Worked with relational (MySQL) and non-relational (MongoDB) databases to design schemas and optimize queries, reducing DB response time by 20%.• Integrated secure authentication systems using JWT and session-based methods across projects, ensuring data protection and user privacy.• Applied advanced database indexing and query optimization techniques, significantly improving data retrieval speeds.• Collaborated with a cross-functional team of 10 members in an Agile Scrum framework, participating in daily standups, sprint planning, and retrospectives.• Delivered 100% of assigned tasks on time within sprint deadlines, contributing to a 95% sprint success rate.• Used Git and GitHub for version control and code collaboration, handling feature branches, pull requests, and merge conflicts.• Interfaced with clients weekly to gather requirements, provide progress updates, and ensure business objectives were met, leading to a high client satisfaction rate.
EDUCATION
Pearson
Ireland, IT Specialist, HTML and CSS
Interregional Academy of Personnel Management
Bachelor’s degree, Languages (English, Spanish)
Can She Code Inc
Certificate, React, Redux, Node.js, MongoDB
Pearson
Ireland, IT Specialist, JavaScript
ABOUT HANNA VASYLIEVA
I’m a Frontend Developer who cares not just about how things look, but how they work - for users and for the business.With 2+ years of experience building web applications using React, TypeScript, Node.js, and modern frontend architecture, I focus on creating interfaces that are fast, accessible, and designed with real user behavior in mind.In my work, I think beyond implementation. I consider how structure, performance, and interaction patterns influence engagement, usability, and conversion. Whether working with WordPress, React applications, or full-stack systems, I aim to build solutions that are scalable, maintainable, and aligned with product goals.I have hands-on experience improving performance, refining UI systems with advanced CSS, designing and integrating APIs, and working with databases like MongoDB. I also work comfortably across the full development cycle - from understanding requirements and UX intent to delivering production-ready features.I enjoy working in collaborative environments, taking ownership of my work, and continuously improving both the technical and product quality of the systems I contribute to.Always learning. Always refining. Always building with purpose.
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