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Fullstack Developer
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Name: Artem Vladislavovich Serdyuk
Location: Kropyvnytskyi, Ukraine
Position: Frontend Developer / Web Developer
Expected Salary: $800
Contacts: [
Summary
Full-stack developer specializing in React/Next.js frontend and Node.js backend, building complete web applications from UI to database.
Experienced in GoHighLevel automation (13+ projects), creating CRM workflows, sales funnels, and business process integrations.
Core Full-Stack Skills:
Frontend: React (hooks, context, performance), Next.js (SSR/SSG, API routes), TypeScript, Redux/Zustand, Tailwind CSS
Backend: Node.js, Express.js, REST API, Webhooks, MySQL, PostgreSQL
CRM & Automation: GoHighLevel (workflows, funnels), Zapier, Make, Twilio, Stripe integrations
Full Development Cycle: UI/UX → API → Database → Deployment (Vercel/Netlify)
Results: Core Web Vitals improvements (LCP -40%, TTI -35%), 30% faster feature delivery via reusable components, 70-80% manual work
reduction through automation.
Work Experience
GoHighLevel Developer / CRM & Automation Engineer
— Your R&D 2025 – Present
Develop and launch CRM systems on GoHighLevel for marketing, e-commerce, and service businesses.
Design workflow automations: triggers, conditions, webhooks, and custom lead processing logic.
Integrate payment systems (Stripe, PayPal), booking tools, and CRMs via REST API and webhooks.
Connect Twilio (SMS, calls), email automation, and multi-step sales funnels for omnichannel communication.
Implement automated scenarios for lead screening, tagging, routing, and reactivation to reduce manual work.
Build custom pipelines, dashboards, and reports for real-time visibility into leads and funnel performance.
Create AI chatbots and qualification flows to pre-screen leads and automatically book calls.
Use Zapier and Make (Integromat) for cross-system automation and error-resistant data flows.
Frontend / Fullstack Developer — Funneljet (Remote)
2025 – Present
Develop and maintain production web apps using JavaScript, React, Next.js with focus on reliability and clean architecture.
Build high-converting websites, landing pages, and sales funnels on WordPress and GoHighLevel with deep customization.
Implement business logic for forms, payments, lead generation, and CRM data transfer, ensuring data integrity across systems.
Integrate external services via REST API, Webhooks, Zapier, Make to automate cross-platform workflows.
Optimize UI/UX, performance, SEO, and Core Web Vitals (LCP, TTI, CLS) on key pages.
Create reusable UI components and modules to speed up feature delivery and improve consistency.
Participate in code reviews, technical planning, sprints, and close collaboration with designers and marketing teams.
IT Engineer — Department of Information Technologies, Kropyvnytskyi City Council
2024 – 2025
Supported and developed internal information systems and web solutions for municipal departments.
Administered software, workstations, and network infrastructure; handled incidents and updates.
Executed technical tasks for internal process automation and integration of systems.
Worked with technical documentation and participated in rollout of new digital services.
Education
Kherson National Technical University
Bachelor’s Degree (in progress) — Software Engineering (121)
Kherson Polytechnic Vocational College of ONPU
Associate Degree — Software Engineering (121)
Skills
Frontend: JavaScript (ES6+), TypeScript, React, Next.js,
Redux, HTML5, CSS3/SCSS, Tailwind CSS, Responsive
Design, UI/UX
Backend & API: Node.js, Express.js, REST API,
Webhooks, GraphQL
Database: MySQL, PostgreSQL (Supabase), MongoDB
CRM & Automation: GoHighLevel*, Zapier, Make
(Integromat), n8n, Twilio (SMS/Voice), Stripe, PayPal
AI & Chatbots: AI Chatbots, Lead Qualification Bots,
Conversational AI
Web Platforms: WordPress, Landing Pages, Sales
Funnels, Website Builders
DevOps & Tools: Git/GitHub, VS Code, Figma, Jira,
Trello, Vercel, Netlify
Core Programming: Python, Java, C++
Performance: SEO, Core Web Vitals, Page Speed
Optimization
13+ GoHighLevel projects: CRM automation, funnels,
workflows, integrations
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