nthgness
Senior Front End Developer
Senior Front-End Developer with 7+ years of experience building high-performance web applications across multiple
domains — fintech, e-commerce, SaaS, and entertainment. Proven ability to adapt quickly to new business contexts, take
ownership of features end-to-end, and deliver user-facing products that drive real metrics: sign-up growth, fraud reduction,
faster onboarding. Core stack: React, TypeScript, Next.js. Additional hands-on experience with real-time data systems,
complex form flows, and Web3 integrations. Looking for a senior role where I can combine strong technical execution with
product thinking to build great user experiences.
domains — fintech, e-commerce, SaaS, and entertainment. Proven ability to adapt quickly to new business contexts, take
ownership of features end-to-end, and deliver user-facing products that drive real metrics: sign-up growth, fraud reduction,
faster onboarding. Core stack: React, TypeScript, Next.js. Additional hands-on experience with real-time data systems,
complex form flows, and Web3 integrations. Looking for a senior role where I can combine strong technical execution with
product thinking to build great user experiences.
Experience: 7 years
Yearly salary: $80,000
Hourly rate: $45
Nationality: 🇺🇦 Ukraine
Residency: 🇮🇹 Italy
Experience
Senior Frontend Developer
Amygdalab 2022 - 2024
Digital onboarding hub incorporating ML-based facial recognition, liveness detection, and video call verification. Led front-end architecture for a multi-step identity verification flow integrating facial recognition SDK, video calls, and document upload. Reduced fraud by 25% by implementing facial recognition and liveness checks into the onboarding pipeline. Cut onboarding completion time by 20% through UX streamlining and progressive form validation. Mentored 2 junior developers through regular code reviews, pair programming, and architecture discussions. Resolved critical production bugs under tight SLAs, maintaining 99.5%+ uptime.
Senior Frontend Developer
TRANSCODED 2021 - 2022
Fan engagement platform connecting users with celebrities through interactive experiences. Built a responsive, mobile-first web app with interactive engagement tools (live chats, personalized content, virtual meet-and-greets). Increased mobile user engagement by 20% by optimizing touch interactions, lazy loading, and responsive layouts. Created a reusable project scaffold and component library, reducing new feature setup time by ~40%. Drove front-end architectural decisions and introduced a shared component review process across the team.
Frontend Developer
StoreTime 2020 - 2021
Analytics web app for SMBs to monitor online presence and improve engagement. Led front-end development from MVP through production, defining the component architecture and build pipeline. Built a reusable UI component library and established coding standards, reducing future development time by 30%. Achieved a 25% faster development cycle through modular architecture and CI/CD pipeline improvements.
Frontend Developer
SwapOnline 2018 - 2020
Open-source, multi-currency P2P exchange for Bitcoin and custom assets on decentralized Web3 technologies. Developed core exchange UI components for a decentralized P2P trading platform supporting BTC, ETH, and ERC-20 tokens. Implemented Web3 wallet integration and transaction signing, contributing to a 20% increase in mobile user retention. Diagnosed and resolved performance bottlenecks on mobile, significantly improving responsiveness and load times.
Skills
javascript
react
solana
typescript
web3
front-end
english
russian
ukrainian