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Javascript developer
- Considering positions:
- Javascript developer, React developer, Fullstack Developer
- City:
- Remote
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Yaroslav Bondarenko
Frontend Developer
[open contact info ](look above in the "contact info" section) [open contact info ](look above in the "contact info" section) Ukraine https://t.me/yaroslavbn
Summary
Frontend Developer with 3 years of commercial experience building SaaS products with React, Next.js, and TypeScript, plus
hands-on full-stack experience (Node.js, PostgreSQL, Redis). Built a VPN-infrastructure SaaS platform from scratch and delivered
CRM modules used daily by franchise businesses. Strong in automated testing, REST API design, and AI-assisted development
workflows.
Skills
Frontend
JavaScript (ES6+), TypeScript, React, Next.js (SSR/SSG), Redux Toolkit, RTK Query, Tailwind CSS, SCSS, Material UI, shadcn/ui,
Storybook, Jest, i18next
Backend
Node.js, Express.js, REST API, PostgreSQL, Sequelize ORM, Redis, BullMQ, JWT
DevOps & Tools
Git, GitLab CI/CD, Docker, Linux, Nginx, Postman
Practices
Agile, Scrum, Code Review, Automated-testing, AI-assisted Development(Claude, Codex, Gemini, AI-agents)
Work Experience
Expert Family Dec 2025 – Jun 2026
Frontend Developer (remote)
CRM platform for franchise cleaning companies - React · Next.js · TypeScript
• Developed and maintained complex CRM modules end-to-end - from API design with backend engineers to production release.
• Introduced automated testing (Jest) and contributed to frontend architecture decisions, improving maintainability and release
confidence.
• Ensured GDPR-compliant handling of user data across the application.
• Improved application stability through systematic code reviews and root-cause bug investigations.
Self Hosted Project (SHP) June 2024 - December 2025
Full-Stack Developer (remote)
SaaS platform for deploying and managing self-hosted VPN infrastructure - Next.js · Node.js · PostgreSQL
• Designed and built the SaaS platform from scratch: frontend (Next.js, React, TypeScript, Tailwind CSS) and backend services.
• Implemented JWT authentication and asynchronous job processing with Express.js, BullMQ, and Redis.
• Designed the PostgreSQL database architecture (Sequelize) and integrated recurring subscription payments.
• Mentored junior developers and participated in key technical decision-making.
Crypton July 2023 - June 2024
Junior Frontend Developer (remote)
Interface for analyzing and back-testing crypto trading-bot strategies - React · Redux Toolkit · RTK Query
• Built analytical dashboards visualizing high-volume, real-time cryptocurrency market data.
• Implemented real-time data synchronization with RTK Query (caching, polling) for trading views.
• Created a reusable component library with Storybook documentation, speeding up feature delivery across the team.
Education
Kharkiv Polytechnic Institute B.Sc. Software Engineering
September 2022 - June 2026
Languages
English - B2 Ukrainian - C2 Russian - C2
Frontend Developer
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Summary
Frontend Developer with 3 years of commercial experience building SaaS products with React, Next.js, and TypeScript, plus
hands-on full-stack experience (Node.js, PostgreSQL, Redis). Built a VPN-infrastructure SaaS platform from scratch and delivered
CRM modules used daily by franchise businesses. Strong in automated testing, REST API design, and AI-assisted development
workflows.
Skills
Frontend
JavaScript (ES6+), TypeScript, React, Next.js (SSR/SSG), Redux Toolkit, RTK Query, Tailwind CSS, SCSS, Material UI, shadcn/ui,
Storybook, Jest, i18next
Backend
Node.js, Express.js, REST API, PostgreSQL, Sequelize ORM, Redis, BullMQ, JWT
DevOps & Tools
Git, GitLab CI/CD, Docker, Linux, Nginx, Postman
Practices
Agile, Scrum, Code Review, Automated-testing, AI-assisted Development(Claude, Codex, Gemini, AI-agents)
Work Experience
Expert Family Dec 2025 – Jun 2026
Frontend Developer (remote)
CRM platform for franchise cleaning companies - React · Next.js · TypeScript
• Developed and maintained complex CRM modules end-to-end - from API design with backend engineers to production release.
• Introduced automated testing (Jest) and contributed to frontend architecture decisions, improving maintainability and release
confidence.
• Ensured GDPR-compliant handling of user data across the application.
• Improved application stability through systematic code reviews and root-cause bug investigations.
Self Hosted Project (SHP) June 2024 - December 2025
Full-Stack Developer (remote)
SaaS platform for deploying and managing self-hosted VPN infrastructure - Next.js · Node.js · PostgreSQL
• Designed and built the SaaS platform from scratch: frontend (Next.js, React, TypeScript, Tailwind CSS) and backend services.
• Implemented JWT authentication and asynchronous job processing with Express.js, BullMQ, and Redis.
• Designed the PostgreSQL database architecture (Sequelize) and integrated recurring subscription payments.
• Mentored junior developers and participated in key technical decision-making.
Crypton July 2023 - June 2024
Junior Frontend Developer (remote)
Interface for analyzing and back-testing crypto trading-bot strategies - React · Redux Toolkit · RTK Query
• Built analytical dashboards visualizing high-volume, real-time cryptocurrency market data.
• Implemented real-time data synchronization with RTK Query (caching, polling) for trading views.
• Created a reusable component library with Storybook documentation, speeding up feature delivery across the team.
Education
Kharkiv Polytechnic Institute B.Sc. Software Engineering
September 2022 - June 2026
Languages
English - B2 Ukrainian - C2 Russian - C2
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The candidate's resume is posted at https://www.work.ua/resumes/14586145/