Fullstack developer

hotline.finance

About the Project

hotline.finance is one of the leading online insurance marketplaces in Ukraine. The platform allows users to compare insurance offers from multiple providers, purchase policies online, and manage their insurance products in a convenient and transparent way. It covers products such as mandatory car insurance (MTPL), CASCO, travel insurance, health insurance, and other types of coverage. The platform focuses on simplifying the purchasing process by providing price comparisons, policy details, and a fully digital customer journey.

• Insurance
• Fintech

Responsibilities

- Developed and maintained features using Next.js, React, and TypeScript, tailwind, Redux Toolkit; - Optimized Core Web Vitals and SEO; - Improved application performance, reducing page navigation time by 5x; - Set up and integrated Storybook into the development workflow; - Fixed all accessibility issues; - Wrote unit tests with Jest; - Monitored production issues using Sentry; - Integrated various MCP tools into the development workflow;

UnBlinked

About the Project

UnBlinked is a South Korea–based startup that develops solutions for enabling and creating bots for algorithmic cryptocurrency trading. It allows user to write their own programs in browser to set and automate bots using different Exchange APIs

• Cryptocurrency

Responsibilities

- Actively added new and fixed old features in the stack of the product using Next.js, TailwindCSS, React.js, RTK, Typescript; - Managed SSR, SSG using Next.js; - Added auth logic using jwts, exchange registering system, data diagrams using Echarts showing the data of the recent trades with filtering, sorting; - Added and fixed the UI-kit using SCSS and TailwindCSS; - Added own AI assistant page helping user in writing bots for algorithmic cryptocurrency trading; - Worked on implementing editors with tooltips, logs, tabs, snippets, own version control system for users' code of bots; - Applied testing techniques with a prior research to improve reliability and managed the best practices using Jest/Vitest + react-testing-library to test services built on Next.js (app router);

Chapter

About the Project

Chapter is a social networking platform designed for book lovers. It enables users to discover new books, share reviews and recommendations, create and organize personal reading lists, join discussions, and connect with other readers who have similar interests. The platform focuses on building an engaging reading community while helping users track their reading progress and discover personalized book recommendations.

• Networking

Responsibilities

- Set up architecture and development environment; - Established the team’s development processes and workflow; - Managed task planning, prioritization, and team coordination; - Conducted code reviews to maintain code quality and consistency; - Designed and implemented the UI kit;