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.
Experience: 3 years
Yearly salary: $72,000
Hourly rate: $35
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. Implemented facial recognition and liveness checks into the onboarding pipeline, significantly reducing fraud rates. Streamlined UX and introduced progressive form validation, noticeably cutting onboarding completion time. Mentored 2 junior developers through regular code reviews, pair programming, and architecture discussions. Resolved critical production bugs under tight SLAs, maintaining high availability.
Frontend Developer
TRANSCODED 2021 - 2022
Fan engagement platform connecting users with celebrities through interactive experiences. Built a responsive, mobile-first web app with real-time interactive features: live chat, personalized content feeds, and video-based engagement tools. Implemented lazy loading, optimized touch interactions, and refined responsive layouts, leading to a notable increase in mobile user engagement. Designed and built a reusable component library and project scaffold from scratch, significantly reducing setup time for new features. Drove front-end architectural decisions including state management patterns, routing structure, and API layer design. Introduced a shared component review process across the team, improving code consistency and reducing regressions.
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, streamlining development across the team. Improved development velocity through modular architecture and CI/CD pipeline optimizations.
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, improving mobile user retention. Diagnosed and resolved performance bottlenecks on mobile, significantly improving responsiveness and load times.
Skills
solana
english
russian
ukrainian