holakirr

Senior Full Stack Engineer | React, Type Script, Node.Js (Nest Js)

Senior Full-Stack Engineer with 7+ years building high-scale web applications for fintech, crypto and e-commerce (T1 Innotech, Grid Dynamics). Expert in React, TypeScript, Node.js and NestJS: cut an enterprise app's load time from 10 to 2 seconds, shipped payment flows handling 1M+ daily transactions, migrated a cryptocurrency platform from a frontend monolith to BFF + micro-frontends (+200% scalability, 99.9% uptime target). Founder of a production subscription service I run solo: NestJS, PostgreSQL, Redis, BullMQ, recurring billing with idempotent payment webhooks, 150+ paying subscribers, 425+ automated tests. Creator of the open-source Snow UI React component library (npm + Storybook). AI-augmented daily workflow with Claude Code on top of pre-AI fundamentals. Led a team of 5 engineers on a Fortune 300 project. Fluent English, based in Bangkok (UTC+7), open to remote work worldwide.

Experience: 7 years

Yearly salary: $120,000

Hourly rate: $55

Nationality: 🌏 Remote

Residency: 🌏 Remote

Experience

SENIOR FRONTEND DEVELOPER / TEAM LEAD

Grid Dynamics

2021 - 2024

Led cross-functional team of 5 developers in international project focused on dependency updates and creation of comprehensive UI library for Fortune 500 client. Optimized enterprise application performance, reducing initial load time from 10 to 2 seconds through implementing lazy loading, table data virtualization, and render optimization techniques. Architected and developed payment method improvements for major global e-commerce brand, successfully processing 1M+ daily transactions.

FRONTEND DEVELOPER

Chitai Gorod

2020 - 2020

Collaborated with the team to develop new payment method using JavaScript and HTML and other features. Assisted in requirements gathering and implementation, contributing to the successful delivery. Gained proficiency in JavaScript through practical application and self-directed learning.

FRONTEND DEVELOPER

Globus-IT

2020 - 2021

Developed internal admin panel for major Russian bank using React and TypeScript, serving 500+ internal users daily. Contributed to mobile investment application for one of Russia's largest banks with 10K+ active users. Implemented comprehensive unit, e2e and integrational testing coverage (85%+) using Jest and React Testing Library.

WEB DEVELOPER

Rerise

2018 - 2020

Clarified requirements with stakeholders. Managed all processes to create web-site for client from the scratch. Worked with JavaScript, CSS and pre-compilers (SCSS, Sass), HTML, WordPress and PHP.

Skills

javascript

nestjs

nextjs

node

react

typescript

full-stack

english

russian

spanish

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