Ілля

Ilya Pivtorak
Software Engineer

Profile Details

Full-Stack Software Engineer with 3+ years of experience building Kyiv, Ukraine
Phone:[открыть контакты](см. выше в блоке «контактная информация»)
scalable web applications in SaaS, fintech, and eCommerce domains.
Email: [открыть контакты](см. выше в блоке «контактная информация»)
Expertise in React/Next.js and Node.js ecosystems, with proven track
record of improving application performance, implementing SSR Skills
solutions, and delivering production-ready features. Strong background Frontend: React.js, Next.js, TypeScript,
JavaScript (ES6+), HTML5, CSS3, SCSS,
in client communication, requirements gathering, and full SDLC SSR,SSG, Responsive Design
participation.
State Management: Redux Toolkit (RTK),
Employment History Zustand, Context API, React Query
Freelance Full-Stack Developer Backend: Node.js, Nest.js, Express.js,
RESTful APIs, GraphQL, WebSockets
October 2023 — Present
Databases: PostgreSQL, MongoDB
- Developing web-apps( front/backend). Talking with customers and
managing whole development process. Testing: Jest, Cypress, Unit Testing
Tools & Methodologies:Git,Docker, Agile/
- Manage end-to-end development lifecycle for 2 client projects, from requirements Scrum, SDLC, SEO optimization
gathering to deployment and maintenance
Additional: Load Testing, Technical Tutoring
- Build responsive landing pages and web applications using React, Next.js, and
Node.js

- Conduct API load testing and performance optimization, identifying bottlenecks and
improving response times by up to 40%
Frontend developer at Leboutique
January 2023 — November 2024 / September 2021 — September 2022

- Implemented Server-Side Rendering (SSR) for React applications, improving SEO rankings and
initial page load times by 35%
- Developed 20+ responsive web pages and features using React, TypeScript, and modern CSS
techniques
- Optimized application performance through code splitting, lazy loading, and bundle size
reduction (reduced bundle by 28%)
frontend developer at Yalantis
September 2022 — January 2023

Optimized Next.js page performance, reducing Time-to-Interactive (TTI) by 2.5 seconds across
key landing pages

- Developed dynamic web pages using Next.js with focus on Core Web Vitals and user
experience

- Integrated Lottie animations to enhance UI/UX, improving user engagement metrics by 15%

- Implemented responsive designs ensuring cross-browser compatibility and mobile-first
approach

full-stack developer at simple2b
October 2020 — February 2021
- Participated in complete SDLC including requirements analysis, development,
testing, deployment, and maintenance

- Conducted client meetings to gather requirements and translate business needs into
technical specifications

- Developed backend services using Python (Flask & Django), implementing RESTful
APIs and database models

- Built interactive frontend interfaces using React, SCSS, and Vanilla JavaScript with
focus on usability

Education
Bachelor of Software Engineering, National Transport
University, Kiev
June 2016 — June 2020