I’m Ryan Yudantara, a Senior Mobile & Full Stack Engineer with 7 years of experience building scalable web and mobile applications using React Native, Flutter, React, Next.js, TypeScript, Node.js, NestJS, Python, PostgreSQL, Redis, AWS, and GCP.
I have strong experience in fintech, SaaS, AI-powered applications, e-commerce, and real-time dashboards. I enjoy owning features end-to-end, from frontend UI and backend APIs to database design, integrations, deployment, testing, and production support.
Skills
Experience Level
Language
Work Experience
Education
Qualifications
Industry Experience
Built a secure fintech platform for international money transfers and digital payments. Developed responsive web and mobile applications, payment workflows, transaction processing, user authentication, real-time dashboards, and scalable backend services with a strong focus on security, performance, compliance, and user experience.
Website link:
https://www.twine.net/signin
https://www.twine.net/signin
https://www.twine.net/signin
Built a modern travel and cultural web platform that helps users discover temples, shrines, and collect Goshuin across Japan. Developed responsive user interfaces, interactive maps, location search, multilingual content, CMS-driven pages, and scalable backend services with a strong focus on performance, SEO, and user experience.
Website link
https://www.twine.net/signin
Built a secure fintech payment platform supporting online payments, merchant services, customer management, and transaction processing. Developed responsive web applications, payment workflows, backend APIs, and cloud-based infrastructure with a strong focus on security, performance, scalability, and user experience.
Website link
https://www.twine.net/signin
Built production-grade DeFi and blockchain-powered financial applications. Developed secure web platforms, real-time transaction dashboards, wallet connectivity, staking workflows, tokenized asset management, smart contract integrations, and scalable backend APIs while supporting high-volume on-chain financial transactions across EVM-compatible networks.
Website link
https://www.twine.net/signin
Built and enhanced Shopify Plus and headless commerce platforms for US-based brands, delivering custom storefronts, product catalog management, checkout integrations, payment workflows, inventory synchronization, and conversion-focused user experiences. Developed scalable e-commerce solutions using Shopify, React, Next.js, TypeScript, and modern cloud technologies while collaborating with marketing, design, and business teams to improve performance, SEO, and customer engagement.
Website link:
https://www.twine.net/signin
Built scalable commerce systems supporting product catalogs, inventory management, order processing, payment integrations, logistics automation, and customer-facing storefront experiences.
Website link:
https://www.twine.net/signin
Developed payment processing platforms, transaction reconciliation systems, billing workflows, and secure integrations with banking APIs, Stripe, PayPal, and financial services infrastructure.
Website link:
https://www.twine.net/signin
Web3 Gaming Identity System - Central profile system for Parallel.life gaming platform with pixel-perfect UI delivered across 3 phases. Advanced user authentication, profile customization, and enterprise-grade Web3 integration.
Website link:
https://www.twine.net/signin
Built production-grade full-stack web and mobile healthcare applications. Developed patient-facing experiences, clinical dashboards, backend APIs, and cloud-native services while integrating AI-powered features such as clinical note summarization, semantic search, biomarker extraction, RAG pipelines, and intelligent workflow automation across large-scale healthcare systems.
Website link
https://www.twine.net/signin
Hire Ryan Yudantara today
To get started post up your job and then invite Ryan Yudantara to your job.