Олександр

OLEKSANDR BASHLII
Frontend/Fullstack Developer

Lviv, Ukraine

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LinkedIn | Telegram

PROFESSIONAL SUMMARY

Frontend Developer with experience building scalable web applications and internal
platforms. Expert in React, Next.js, and TypeScript with a strong focus on performance,
clean architecture, and maintainable code. Experienced in data-driven UI development, API
integration, and optimizing build pipelines. Collaborates effectively with cross-functional
teams to deliver reliable, production-grade solutions.

CORE SKILLS

●​ Frontend: React, Next.js, TypeScript, JavaScript (ES6+), Redux Toolkit, MobX, AG
Grid, Victory Charts
●​ UI & Styling: Styled Components, Sass, Bootstrap, Responsive Design, UI
Architecture
●​ Backend & APIs: Node.js, Nest.js, Express, REST API Integration, Websockets,
SSE, BullMQ, AWS S3, AWS Cloudwatch, AWS EC2, Docker
●​ Build & Tooling: Vite, Webpack, ESLint, Prettier, Git, GitLab CI/CD
●​ Testing & Perf: React Testing Library, Jest, Lighthouse Audits, Code Splitting,
Bundle Optimization
●​ AI tools: Claude, GLM, SonarCube

WORK EXPERIENCE

Smartexe | Frontend Developer (Cable Management B2B SaaS) | Oct 2024 – Present
Remote (Lithuania)

●​ Modernized Tech Stack: Migrated project from Create React App to Vite, cutting
build times from 33 to 12 minutes and significantly accelerating deployment cycles.
●​ Advanced Data Handling: Developed complex AG Grid tables featuring inline
editing, custom filtering, and pagination to manage enterprise-level cable component
data.
●​ State Management: Integrated REST APIs and synchronized table states using
Redux Toolkit for predictable and efficient data flow.
StartupSoft | Frontend Developer (USA Wholesale Platform) | Feb 2021 – Mar 2024
Remote (USA)

●​ Scalable Architecture: Maintained four separate applications within a large-scale
wholesale ecosystem, delivering features for admin panels and customer
onboarding.
●​ Legacy Support: Maintaining on legacy JavaScript apps
●​ Backend development: developed internal chat system using Nest.js
●​ Quality Assurance: Implemented integration tests with React Testing Library

Rolique | Frontend Developer (Influencer Marketing Platform) | Feb 2019 – Jan 2021
Remote (Germany)

●​ Data Visualization: Developed analytical dashboards and bar charts using Victory
Charts, providing influencers with real-time campaign performance reporting.
●​ Performance Engineering: Optimized large data rendering (10K+ records) using
react-window, achieving smooth scrolling and high frame rates.
●​ Cross-Browser Support: Ensured full compatibility for legacy browsers (IE) via
targeted CSS prefixing and polyfills.

Bytebrand Solutions | Frontend Developer (Automotive Marketplace) | Apr 2018 – Feb
2019 Remote (Germany)

●​ Interactive Features: Built custom vehicle search filters and date pickers from
scratch using React and MobX.
●​ Localization: Supported i18n implementation for the German market to enhance
usability for regional users.

Keenethics | Fullstack Developer (Upwork Projects) | Aug 2016 – Apr 2018 Lviv, Ukraine

●​ MVP Development: Delivered full-stack MVPs using Node.js, Express, and
MongoDB, managing both client requirements and technical deployments to
Heroku/DigitalOcean.

Enigma.ua | Frontend Developer (News & Blogging Portal) | Aug 2015 – Aug 2016 Lviv,
Ukraine

●​ SEO & Optimization: Developed SEO-optimized frontend features and utilized
Lighthouse to audit and improve site accessibility and loading speeds.
●​ Tech Stack: React, Redux, Webpack, Sass, REST API, InVision, Lighthouse.

EDUCATION

Lviv Polytechnic National University Bachelor’s Degree in Computer Science | 2012 –
2016

LANGUAGES

●​ English: B2 (Upper-Intermediate)
●​ Ukrainian: Native