portnov057
Frontend Engineer — React / Next.Js / Type Script
Frontend Developer with 6 years of experience shipping end-to-end web products with JavaScript, TypeScript, React, Next.js, and Node.js. I build practical product interfaces where frontend connects business logic, backend systems, wallets, APIs, real-time data, and user behavior into a clear experience.
My strongest background is in Web3, Solana, trading tools, wallet authentication, and interactive 3D product flows. I’ve worked across production dApps, P2E products, marketplace UX, SDKs, copy-trading systems, and App Router architectures, with a focus on performance, security, maintainability, and shipping working systems fast.
I’m comfortable in async distributed teams, fast-changing requirements, and projects where ownership matters more than narrow task execution. I care about clean architecture, strong types, reliable releases, and practical engineering decisions that help products move.
My strongest background is in Web3, Solana, trading tools, wallet authentication, and interactive 3D product flows. I’ve worked across production dApps, P2E products, marketplace UX, SDKs, copy-trading systems, and App Router architectures, with a focus on performance, security, maintainability, and shipping working systems fast.
I’m comfortable in async distributed teams, fast-changing requirements, and projects where ownership matters more than narrow task execution. I care about clean architecture, strong types, reliable releases, and practical engineering decisions that help products move.
Experience: 6 years
Yearly salary: $80,000
Hourly rate: $0
Nationality: 🇺🇦 Ukraine
Residency: 🇪🇸 Spain
Experience
Independent Engineer
Open-Source 2026 - 2026
Building and maintaining independent TypeScript products focused on Web3 tooling, real-time interfaces, and production-grade frontend architecture. I work on private trading-related projects where reliability and execution speed matter, including transaction flows with a 99% first-attempt success rate in under one second. I also shipped my own P2E/P2O GameFi project: a roguelike autobattler in a stylized low-poly 3D fantasy world, while continuing to deepen React 19 and Next.js 16 App Router patterns through production-grade side projects.
Frontend Engineer
Bodega Estudio 2024 - 2026
Owned frontend delivery for company dApps and P2E products across architecture, authentication, interactive graphics, and performance. Built a scalable Solana wallet authentication system for 1,000+ users using SIWS-style signed challenges, domain and origin binding, Redis-backed single-use nonces, ed25519 verification, and split access/refresh JWT rotation. Optimized the main 3D scene by reducing triangle count from 12M to 4M and improving performance by 78% through instancing and custom shaders. Also owned the Three.js / React Three Fiber pipeline for GLB and USDZ scenes, hardened the API surface with rate limiting and nonce protection, and structured the codebase around type-safe feature domains.
Frontend Engineer
VGS Co. 2022 - 2024
Worked on the main company frontend product and internal libraries for wallet integrations, product UI, build tooling, and releases. Replaced a legacy wallet connector with a custom integration, scaling supported wallets from 8 to 100+ across several dApps and contributing to a reported 254% user-base increase. Shipped production interfaces for wallet authentication, token operations, payment flows, and NFT marketplace UX, while owning bundle optimization, CI/CD pipelines, and multi-environment deployments for a small product team.
Full-Stack Developer
SSDC Inc. 2021 - 2022
Worked as the main web developer in a small studio, taking a WAX play-to-earn product from implementation through backend integration, deployment, and support. Built the main platform end-to-end with React, Wax.js, Anchor Link, Node.js, and Express.js, including wallet authentication and production deployment. Operated the stack on a VPS with Nginx routing and delivery tuning, helping the platform scale to 10,000+ users and $241,525+ in marketplace turnover.
Skills
architecture
design-manager
product-manager
front-end
english
russian
spanish
ukrainian