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I’m a frontend developer with a passion for building fast, accessible, and scalable web applications. I specialize in React, Next.js, and TypeScript, delivering high-performance SaaS and business platforms with a modern frontend architecture. Beyond frontend work, I have hands-on experience with Astro, WordPress, PHP, Directus, and Docker, and I optimize server-side flows and Core Web Vitals to improve user experience and performance. I enjoy solving complex technical problems, enhancing developer experience, and delivering measurable value to users and businesses.…I’m a frontend developer with a passion for building fast, accessible, and scalable web applications. I specialize in React, Next.js, and TypeScript, delivering high-performance SaaS and business platforms with a modern frontend architecture. Beyond frontend work, I have hands-on experience with Astro, WordPress, PHP, Directus, and Docker, and I optimize server-side flows and Core Web Vitals to improve user experience and performance. I enjoy solving complex technical problems, enhancing developer experience, and delivering measurable value to users and businesses.

Tim Klimenko

Front-End Developer, Web Developer, Full Stack Developer, +1

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I’m a frontend developer with a passion for building fast, accessible, and scalable web applications. I specialize in React, Next.js, and TypeScript, delivering high-performance SaaS and business platforms with a modern frontend architecture. Beyond frontend work, I have hands-on experience with Astro, WordPress, PHP, Directus, and Docker, and I optimize server-side flows and Core Web Vitals to improve user experience and performance. I enjoy solving complex technical problems, enhancing developer experience, and delivering measurable value to users and businesses.…I’m a frontend developer with a passion for building fast, accessible, and scalable web applications. I specialize in React, Next.js, and TypeScript, delivering high-performance SaaS and business platforms with a modern frontend architecture. Beyond frontend work, I have hands-on experience with Astro, WordPress, PHP, Directus, and Docker, and I optimize server-side flows and Core Web Vitals to improve user experience and performance. I enjoy solving complex technical problems, enhancing developer experience, and delivering measurable value to users and businesses.

Available to hire

I’m a frontend developer with a passion for building fast, accessible, and scalable web applications. I specialize in React, Next.js, and TypeScript, delivering high-performance SaaS and business platforms with a modern frontend architecture.

Beyond frontend work, I have hands-on experience with Astro, WordPress, PHP, Directus, and Docker, and I optimize server-side flows and Core Web Vitals to improve user experience and performance. I enjoy solving complex technical problems, enhancing developer experience, and delivering measurable value to users and businesses.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Serbian

Beginner

English

Intermediate

Russian

Fluent

German

Beginner

Work Experience

Fullstack Developer at Organic People

March 1, 2025 - Present

Migrated 150+ pages from a visual builder-based WordPress setup to a custom Astro + React architecture with reusable components. Developed educational platforms, event websites, and React-based applications with API integrations and custom business logic. Refactored the WordPress ACF content structure and improved content management workflows for editors. Integrated Directus (Docker) with WordPress/PHP to centralize schedules, media assets, and dynamic content. Improved Core Web Vitals and achieved Lighthouse Performance scores of 95–100 on key production pages. Optimized Ubuntu, NGINX, PHP-FPM, and server resources for high-load online events with up to 20,000 concurrent users.

Frontend Developer at EasyOffer

January 1, 2024 - Present

Developed and maintained a SaaS platform helping users manage resumes, automate job applications, prepare for interviews, and access career-related content. Built new product features using Next.js (App Router), React, and TypeScript, working closely with business requirements and product goals. Integrated REST APIs using OpenAPI-generated clients, axios, and TanStack Query, implementing efficient data fetching and caching strategies. Developed and maintained complex user interfaces using Tailwind CSS, Radix UI, react-hook-form, Motion, Chart.js, and TipTap. Implemented SEO improvements, including structured data (JSON-LD), dynamic breadcrumbs, sitemap generation, and metadata optimization. Improved application performance through image optimization, caching and revalidation strategies, and production build optimization. Worked with authentication flows, Telegram-based sessions, iron-session, refresh token handling, Sentry monitoring, and Google Tag Manager integration.

Frontend Developer at Invite

February 1, 2022 - December 1, 2023

Developed responsive and cross-browser web applications and landing pages based on Figma designs. Built and optimized an e-commerce platform with a strong focus on SEO, performance, and user experience. Improved application performance using Lighthouse, Chrome DevTools, and New Relic. Worked with REST APIs, React, Vue, Next.js, and TypeScript to develop business applications and internal tools. Participated in the development of an insurance risk management system that helped reduce claim-related losses.