Skip to content
View ryzands's full-sized avatar

Block or report ryzands

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
ryzands/README.md

Andriawan Maris (ryzands)

Senior Full-Stack Engineer & Infrastructure Architect

I design, build, and operate resilient enterprise internal systems, financial engines, and hybrid infrastructure. Operating at the intersection of robust backend logic, strict regulatory compliance, and self-hosted cloud cost-efficiency.

Available for asynchronous consulting, contract development, and technical architecture.

⚡ Core Technical Capabilities

  • Full-Stack Application Development: Next.js (App Router), React, TypeScript, NestJS, Node.js, Prisma ORM, Tailwind CSS.
  • Database & Data Integrity: PostgreSQL, MySQL, ACID transactional patterns (prisma.$transaction), Double-Entry Ledger engines, Row-Level Security.
  • Enterprise Security & Compliance: Fine-grained Capability RBAC (module:action:resource), Maker-Checker-Signer approval workflows, Immutable Audit Logging.
  • Hybrid Infrastructure & DevOps: Linux (Debian/Ubuntu), Docker, Docker Compose, Proxmox VE, VMware ESXi, GitLab CI/CD, Nginx reverse proxy.
  • Self-Hosted Cloud & Storage: MinIO S3-compatible object storage, TrueNAS ZFS, Tailscale/WireGuard encrypted mesh networks, pfSense.

📂 Production Architectures & Case Studies

Project & Architecture Core Stack Key Business & Engineering Impact
SI-AA: Financial & Asset ERP Next.js, NestJS, Prisma, PostgreSQL Automated double-entry GL auto-journaling across 10+ branches. Eliminated asset-ledger reconciliation discrepancies.
IT Operations Portal & Hub Next.js, NestJS, MinIO, Tailscale Centralized operational knowledge base. Cut cloud storage costs by 60%+ using a hybrid on-premise storage topology.
SIMARKO: Compliance Engine NestJS, PostgreSQL, Prisma Deterministic 5x5 Inherent/Control matrix scoring engine with immutable audit trails for banking regulatory compliance.
Automated Hybrid Backup Pipeline Bash, Docker, Rclone, MinIO Concurrency-safe (flock) automated DB backup pipeline with SHA-256 integrity validation and dual-tier retention pruning.
Enterprise Monorepo Starter NestJS, Next.js, TypeScript Production baseline featuring declarative RBAC guards, global validation, and append-only forensic audit interceptors.

🛠️ How I Work (Async & Execution-Driven)

I partner with technical founders, CTOs, and engineering teams who value deep focus and clean output over meeting overhead:

  • Workflow: Task/ticket-driven execution via GitHub Issues, Linear, or Jira.
  • Handoff: Well-structured Pull Requests accompanied by concise written summaries and Loom video walkthroughs.
  • Timezone: UTC+7 (Jakarta/Bangkok). Tasks assigned at the close of Western business hours are tackled while you sleep.

📬 Direct Inbound Inquiries

Pinned Loading

  1. enterprise-it-operations-portal-architecture enterprise-it-operations-portal-architecture Public

    Enterprise IT operations portal & self-service knowledge base: Next.js/NestJS architecture with hybrid cloud-to-on-premise MinIO/TrueNAS storage connected via Tailscale mesh tunnels.

  2. enterprise-core-erp-accounting-architecture enterprise-core-erp-accounting-architecture Public

    Enterprise ERP & Asset Management architecture: Automated Double-Entry General Ledger, ACID transaction handling (Prisma), fixed asset depreciation, and Maker-Checker-Signer workflows.

  3. enterprise-risk-compliance-engine-architecture enterprise-risk-compliance-engine-architecture Public

    Enterprise Risk Management (ERM) & regulatory compliance scoring engine: Deterministic 5x5 Inherent/Control matrix, dynamic KRI tracking, and immutable audit trails.

  4. automated-hybrid-backup-scripts automated-hybrid-backup-scripts Public

    Production disaster recovery pipeline for Linux & Docker: PostgreSQL/MySQL transactional dumps, concurrency locking (flock), SHA-256 validation, and offsite MinIO/S3 sync via Rclone.

    Shell

  5. enterprise-nestjs-nextjs-starter enterprise-nestjs-nextjs-starter Public

    Production-grade TypeScript monorepo starter: NestJS, Next.js (App Router), Prisma, granular capability RBAC, and append-only forensic audit logging.

    TypeScript