

Muhammad Rayhan
Full-Stack Architect & System Engineer
Architecting resilient digital ecosystems from 0 → 1 & beyond.
Full-Stack & Distributed Systems
Founder at Rayeen Labs
Malang & Jakarta, Indonesia
7:00:00 PM UTC+7
Engineering Thesis
I'm Rayhan, a Full-Stack System Architect. I love taking complex software requirements and engineering them into elegant, high-throughput web ecosystems — taking products from 0 → 1 with precision, or scaling them from 1 → 100 under real-world traffic.
My work spans architecting modular monorepos (like the Rayeen Ecosystem encompassing WMS, NuraFin, Tdash, Creatify, and Admin), to mission-critical university academic systems for UNISMA serving tens of thousands of active records.
I believe great software is born at the intersection of rigorous backend architecture, resilient data integrity, and high-density, beautiful interfaces that respect the user's time and focus.
Modular Monorepos
Self-contained micro-applications running on shared type systems and unified tokens.
Zero-Jank Performance
Optimistic updates, server-side data loaders, and sub-millisecond edge API execution.
Zygote Data Integrity
Audit-logged soft deletes, universal UUID public keys, and strict Zod runtime schemas.
Experience & Leadership
A track record of engineering leadership, scalable product delivery, and technical stewardship across private labs and university enterprise systems.
Designing and orchestrating a multi-app monorepo ecosystem with independently deployable micro-frontends and high-throughput Hono/PostgreSQL backends.
- Built 6+ enterprise & productivity applications (WMS, NuraFin, EIS, Campus ERP, Creatify, Admin) running on unified design tokens and shared core libraries.
- Architected Zygote data model standards and AI Bridge bug tracing mechanism with automatic issue resolution workflows.
- Engineered high-performance SSR and sub-millisecond client transitions using React Router v7 and optimized edge bundling.
Leading the development and diagnostic modernization of mission-critical campus systems serving thousands of students and faculty members.
- Architected automated diagnostic engines for SIAKAD student data integrity (Yudisium study period audit, SKS accumulation, and PDDikti feeder reconciliation).
- Developed Ormawa Activity Proposal & Budgeting System with multi-tier approval matrix and real-time financial tracking.
- Engineered alumni Tracer Study platform with complex analytical surveys and interactive accreditation reports.
Selected Systems & Products
Rayeen WMS
In Active DevEnterprise Work Management System featuring real-time sprint pipelines, workspace channels, task velocity metrics, and team collaboration boards.
Rayeen NuraFin
In Active DevIntelligent Family Budgeting & Debt Amortization system with category-based quotas, debt payoff projections, and financial health score analysis.
Tdash Trading
In Active DevTrading journal and analytics cockpit with execution logging, strategy win-rate evaluation, monthly PnL calendar, and risk-reward ratio diagnostics.
Creatify AI
In Active DevAI-driven visual design intelligence suite. Generates brand marks, extracts harmonious color systems, and drafts UI tokens directly from reference images.
Rayeen Admin Tower
Live ProductionUnified ecosystem command center for tenant management, role-based access governance, and real-time observability across all Rayeen apps.
UNISMA SIAKAD Diagnostic Engine
Live ProductionAutomated diagnostic & reconciliation toolkit for UNISMA student academic data — auditing Yudisium study periods, SKS graduation totals, and PDDikti feeder sync.
Architecture & Tech Stack
Curated modern stack engineered for velocity, strict type safety, zero-runtime overhead, and enterprise scalability.
Frontend Architecture
- React 19 / Router v7SSR, Flat file-system routing & action loaders
- TypeScriptStrict type safety & shared monorepo interfaces
- Tailwind CSS v4CSS variables, @theme tokens & zero-runtime CSS
- ZustandLean, decoupled client & domain state stores
- GSAP & MotionHardware-accelerated choreography & smooth scroll
Backend & Systems
- Hono Web FrameworkUltra-fast edge/Node REST API routing
- PostgreSQL & PrismaRelational persistence with Zygote data schemas
- Node.js & ExpressEnterprise server runtimes & legacy bridge
- Zod Schema ValidationStrict runtime payload parsing and safety
- AI Bridge TelemetryReal-time error catching & automatic bug logging
DevOps & Infrastructure
- npm WorkspacesMonorepo modularity with isolated micro-apps
- DockerReproducible containerization & orchestration
- Vercel & VPSMulti-subdomain edge CDN deployments
- Git WorkflowSemantic commits, CI/CD automated test gates
Ecosystem Telemetry & Standards
Independently deployable apps with shared tokens
Full TypeScript interfaces & Zod validation
UUID public routing & audit-logged soft deletes
Automated ErrorCatch & AI-assisted resolution
Initiate Contact & Inquiry
Send a Direct Message
Fill out this console and I'll get back to you promptly.