Open to opportunities

Дмитро Муляк

@0002187

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Senior Frontend Engineer specializing in scalable React and TypeScript systems with strong FinTech impact.

Ukraine

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What I'm looking for

I seek senior frontend roles where I can improve UX, reliability, and scalability, collaborate cross-functionally, and mentor others while delivering high-impact product outcomes.

I am a Senior Frontend Engineer with 10+ years building user-facing systems at scale, focused on product quality, UX consistency, and long-term maintainability. I led development of mission-critical checkout and payment flows within the Wix ecosystem that impacted conversion and revenue for over a million merchants.

My core technical expertise includes React, TypeScript, Next.js, Node.js, frontend modular architecture, and testing at scale; I have hands-on experience with BFFs, production monitoring, and cross-team delivery in distributed systems. I drove migrations to modern testing stacks and introduced E2E coverage, reducing regressions in payment flows.

Recently I completed a career sabbatical during which I developed a full-stack AI CV Analyzer product, building async AI pipelines, secure auth, role-based access, and a modern accessible UI; I enjoy solving reliability and UX challenges in high-traffic, compliance-sensitive environments.

Experience

Work history, roles, and key accomplishments

Current

Independent Software Engineer

Current

Independent

Apr 2024 - Present (1 year 10 months)

Built a full-stack SaaS AI CV analyzer with async AI pipelines, role-based access control, and internationalized responsive UI; focused on UX, performance, and scalability during a planned career sabbatical.

Next.js React TypeScript Fastify Redis BullMQ Supabase Docker GitHub Actions

Software Engineer

Wix

Nov 2021 - Apr 2024 (2 years 5 months)

Core contributor to Wix Checkout, maintained high-traffic, PCI-compliant payment flows for millions of merchants, improved reliability for peak events and reduced regressions via testing migrations and E2E coverage.

React TypeScript Puppeteer React Testing Library Webpack Grafana Sentry

Senior Frontend Developer

Israel IT

May 2021 - Oct 2021 (5 months)

Architected and delivered a React-based admin panel for a crypto exchange and mentored junior developers to improve code quality and onboarding for the mobile team.

React TypeScript React Native Mentoring Architecture CI CD State Management

Senior Frontend Developer

IntellectSoft

Nov 2020 - Apr 2021 (5 months)

Designed SPA architecture, established Webpack and CI pipelines, and delivered a document management system integrating PDFTron with MobX-State-Tree.

Mobx State Tree React MobX State Tree Webpack CI CD PDFTron JavaScript Architecture TypeScript

Frontend Developer

GTM — Global Tech Makers

Sep 2019 - Oct 2020 (1 year 1 month)

Co-developed a reusable internal UI component library and contributed to an investment platform with complex UX and high usability requirements.

React Component Libraries JavaScript UI UX Storybook CSS Frontend Architecture

Software Engineer

ELEKS

Dec 2018 - Sep 2019 (9 months)

Developed a React Native app for a UK logistics client serving 1M+ users with offline-first features and built a warehouse scanning tool to improve parcel tracking workflows.

React Native Firebase Offline First JavaScript Mobile Development UX

Frontend Developer

N-iX

Mar 2018 - Dec 2018 (9 months)

Worked on an investor-facing SPA using React and Vue.js within a large-scale Scrum environment, contributing to frontend features and integrations.

React Vue.Js JavaScript Scrum Frontend Development

Full-stack Developer

Web Studio & Freelance

Dec 2014 - Mar 2018 (3 years 3 months)

Built e-commerce websites and landing pages using PHP, WordPress, and JavaScript, transitioning to modern frontend engineering practices.

PHP WordPress JavaScript HTML5 CSS3 Frontend Development

Education

Degrees, certifications, and relevant coursework

Ukrainian National Forestry University

Master's Degree, Foreign Economic Activity

2012 - 2018

Completed a Master's degree in Foreign Economic Activity with coursework combining economics, international trade, and forestry-related business topics.