Денис

Fullstack-розробник

Considering positions:
Fullstack-розробник, Back end програміст, Front-end програміст, Full stack engineer, Web-програміст, AI-розробник, Project-менеджер, Digital-менеджер, SEO-спеціаліст, Marketing manager 
Employment type:
full-time, part-time
Age:
19 years
City of residence:
Kharkiv
Ready to work:
Remote

Contact information

The job seeker has provided: Phone numberMessenger

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Work experience

Frontend Developer

from 01.2026 to 08.2026 (8 months)
Arixess, Дистанційно (IT)

Worked on the redesign and frontend modernization of https://haliotis.website/pt, a commercial diving platform operating across multiple destinations in Portugal, Madeira, the Azores, and Cape Verde, with courses, dive trips, equipment, and online booking flows.

• Designed and implemented a new frontend architecture using Next.js with SSR and SSG, focusing on scalability, performance, and SEO
• Rebuilt the website and implemented new UI logic, responsive layouts, reusable React components, and complex interactive functionality
• Implemented a scalable multilingual architecture with localized content and routes across multiple languages
• Worked with a large catalog of dynamically rendered diving courses, dive trips, destinations, and products with filtering and booking functionality
• Implemented interactive calculators and dynamic pricing-related functionality for commercial services
• Developed purchase and booking flows and integrated Portuguese payment services and external business APIs
• Integrated CAPTCHA protection and other security mechanisms into user-facing forms and conversion flows
• Integrated multiple backend APIs and third-party services for dynamic data processing, content, booking, and commercial functionality
• Performed a detailed analysis of the existing website's SEO structure and implemented the migration to the new Next.js architecture while preserving important URLs, metadata, redirects, and organic search visibility
• Built SEO-oriented pages with SSR and structured the frontend architecture to support a large number of indexable commercial and content pages
• Worked on technical SEO including URL structure, metadata, canonicalization, sitemap, multilingual SEO, internal linking, and migration requirements
• Identified cases where the original designs did not fully account for business logic, responsive behavior, or technical requirements, discussed the required changes with the Project Manager, and implemented the solutions
• Took responsibility for adapting the frontend when design decisions conflicted with actual product requirements or technical constraints
• Optimized page rendering, loading performance, and frontend architecture following modern Next.js best practices
• Collaborated closely with backend developers, designers, and the Project Manager to deliver a scalable, maintainable, and production-ready commercial platform

Stack: Next.js, React, TypeScript, SSR, SSG, REST API, SEO, multilingual architecture, CAPTCHA, payment integrations, external API integrations

Frontend Architect

from 01.2025 to 05.2026 (1 year 5 months)
Sarafan web, Дистанційно (IT)

Sarafan web — https://sarafan-market.space/ru

Development of a large e-commerce ecosystem combining a multi-vendor marketplace, seller CRM, product catalogs, mini-sites, and B2B Drop-ОПТ platform

Key responsibilities and achievements:
• Took a leading role in frontend architecture and was responsible for key architectural and technical decisions throughout the project
• Designed and developed a scalable frontend architecture for a large product ecosystem including marketplace, seller CRM, product catalogs, mini-sites, and B2B functionality
• Worked as part of a small development team to build and launch a large-scale product quickly, enabling fast decision-making and rapid feature delivery
• Took the product through an approximately one-year development cycle to a production launch
• Implemented complex seller workflows including store management, product catalogs, orders, CRM functionality, and interaction with the B2B platform
• Contributed to the development of an ecosystem connecting marketplace sellers, suppliers, and buyers through multiple integrated services
• Built the frontend foundation to support continuous product growth and rapid implementation of new functionality
• Worked closely with backend developers, designers, and the product team, coordinating technical approaches and architectural decisions
• Contributed to a product that continues to grow and has already reached 10,000+ app downloads

Stack: React, TypeScript, TanStack Query, Redux

Fullstack-розробник

from 01.2023 to 09.2026 (3 years 9 months)
Фіногляд, Дистанційно (IT)

Finoglyad — financial SEO platform and affiliate system: https://finoglyad.com.ua

• Designed and developed the full-stack architecture using Next.js, React, Node.js, Express.js, Prisma ORM, and PostgreSQL, with SSR for SEO-focused pages and high performance
• Built a scalable SEO architecture with a large number of pages and modules, including MFOs, loans, ratings, financial products, insurance, currency rates, encyclopedia, educational content, and other financial sections
• Implemented a satellite model for scaling SEO pages, allowing new pages to be created manually or generated with AI and subsequently managed and edited through the admin panel
• Developed a custom admin panel for managing content, SEO blocks, pages, ratings, financial products, FAQs, and other platform data without requiring code changes
• Built interactive financial calculators and other functional modules for working with financial products
• Integrated the platform's own API and internal systems with multiple third-party APIs and services, including **Polis.ua** for insurance, **eTOLLs.eu** for European vignettes and road tolls, and currency exchange rate APIs
• Implemented external API integrations for insurance policies, European road vignette purchases, currency rates, and other financial services, including data synchronization and processing on the platform side
• Implemented affiliate infrastructure with **postback integrations, conversion tracking, and user action tracking**, connecting internal events with external affiliate systems
• Developed insurance, European vignette and road toll, financial product, and other service modules with external API integrations
• Worked with technical SEO at the architecture level, including SSR, URL structure, metadata, canonical tags, sitemap, hreflang, internal linking, and large-scale landing page generation
• Developed complex dynamic pages and components using React, Next.js, and TanStack Query
• Coordinated project-based work with external specialists, including designers, marketers, and SEO professionals
• Defined technical requirements for external specialists, prioritized tasks, and supervised their implementation
• Collaborated with external SEO specialists on website structure, technical SEO, landing page scalability, and organic growth strategy
• Independently made technical decisions and prioritized development based on business goals, SEO requirements, and marketing objectives

Stack: Next.js, React, TypeScript, TanStack Query, Node.js, Express.js, Prisma ORM, PostgreSQL, REST API, SSR, SEO, AI integrations

Additional education and certificates

2024
Certificate

2024
Certificate

2025
Certificate

Knowledge and skills

  • Next.js
  • NestJS
  • Висока працездатність
  • JavaScript
  • HTML
  • CSS
  • Git
  • React
  • Node.js
  • TypeScript
  • GitHub
  • SASS
  • Redux
  • PostgreSQL
  • Bootstrap

Language proficiencies

  • English — average
  • Ukrainian — fluent

Additional information

Маю досвід роботи з комерційними проєктами як у команді, так і на фрилансі. Мій профіль Freelancehunt: https://freelancehunt.com/freelancer/denis_zv.html — 30 завершених проєктів та максимальний рейтинг.

Основний фокус — React/Next.js, SEO та performance, також маю strong backend-досвід. Додатково розвиваю власні IT-продукти та проходив навчання з AI & Business Optimization в Estonian Entrepreneurship Center, тому звик дивитися на розробку не лише з технічної, а й з бізнес-сторони.

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