Tan Yue Jun — Senior Full-Stack Software Engineer, Mobile Developer, and Founder of JUX Technologies. Personal portfolio: tanyuejun.juxtechnologies.net. I engineer custom software platforms, cross-platform mobile apps, and high-converting web experiences for ambitious founders.
Founder & Lead Full-Stack Software Engineer — JUX Technologies
I operate JUX Technologies as a focused, senior-led engineering studio. Backed by 8+ years of hands-on software development and portfolio showcased at tanyuejun.juxtechnologies.net, I bridge three disciplines that rarely meet in one person: Bespoke UI/UX Product Design, Cross-Platform Mobile Engineering (Flutter & Dart), and Scalable Full-Stack Architecture (React, Next.js, Node.js, Python, PostgreSQL).
When you hire JUX, there are zero account reps or junior handoffs. You collaborate directly 1-on-1 with me from technical architecture to live production release.
Traditional agencies charge $20k+ to pass your vision through 4 layers of middle management. Working directly with a senior builder unlocks unmatched momentum and precision.
One dedicated Telegram or Slack channel with Jaxon. Feedback and architectural decisions land directly in code without waiting for next sprint's planning meeting.
I design the interface in Figma, build the mobile app in Flutter, and write the backend APIs myself. Zero handoff telephone games, zero lost details, and 100% architectural cohesion.
Laser focus on one milestone at a time. Weekly interactive staging demos, transparent fixed pricing, and 100% full IP source code ownership transferred directly to you.
Battle-tested tools and frameworks selected for high velocity, stability, and scale.
Flutter & Dart
Native 60fps iOS and Android apps from a single codebase. Shared-core models, offline caching, and push notifications.
React, Next.js & TypeScript
Modern reactive web applications, enterprise dashboards, sub-second load times, and Google PageSpeed 95+.
Node.js, Python, PostgreSQL
Supabase, Firebase, Docker, Cloudflare Edge & AWS. Scalable database modeling, auth workflows & sub-100ms APIs.
Figma, GSAP & Stripe
Design tokens, kinetic typography, automated Stripe subscription checkouts, webhook listeners, and GA4 telemetry.
Principles that guide every software architecture, mobile app, and landing page.
Clean system architecture always beats convoluted spaghetti code. From intuitive user interfaces to typed API schemas, simplicity allows products to scale reliably without breaking.
A fast application builds immediate user trust. Whether it's a mobile app delivering 60fps animations or a web page loading in under 0.5 seconds, performance is never an afterthought.
I treat your software like my own startup. When your app launches smoothly, users sign up, and revenue flows, that is the only metric of success that truly matters.
Full-stack web applications, SaaS platforms, internal tools, customer portals, and cloud databases engineered for stability.
Cross-platform Flutter mobile applications for iOS & Android with native feel, real-time sync, and multi-app consoles.
Sub-second loading, bespoke luxury aesthetics, magnetic conversion copywriting, and integrated Stripe payments.
Let's build your software, mobile application, or landing page with guaranteed senior craft.