BACKEND DEVELOPER · NETWORK ENGINEER · FULL-STACK BUILDER
Available for Opportunities & Technical Collaboration
Developing resilient backend systems, secure network architectures, and high-performance modern web applications from Tuban, Indonesia.
I am Nuruddin Rusydi Ilham (@RusdiEneri), a backend developer and network engineer based in Tuban, East Java, Indonesia. My journey began with an innate curiosity to explore Linux operating systems and home networking gear, which has matured into a focused professional dedication to architecting high-throughput backend services, optimized database engines, and resilient network infrastructures.
My engineering philosophy centers on uncompromised efficiency: prioritizing direct protocol-level handling over unnecessary framework abstractions, minimizing memory footprints down to the byte level, and ensuring that every production service remains rock-solid under real-world computational workloads.
Beyond web application engineering, I actively audit local DNS security environments, automate Docker container deployments, and maintain open-source utilities designed to eliminate operational friction without compromising user privacy.
- Zero-Bloat Architecture: Building lean services that solve target problems cleanly without unnecessary runtime dependencies or performance-sapping wrappers.
- Protocol-Level Precision: Working directly with foundational protocol layers (Protobuf, WebSocket, HTTP/2, DNS) to achieve maximum throughput and predictable latency.
- DNS Resilience & Defense: Hardening network perimeters against telemetry and threats through packet inspection, recursive local DNS sinkholes (AdGuard Home), and strict segmentation.
- Measurable Reliability (Benchmarks): Rejecting performance assertions without empirical evidence. Every optimization is verified against real stress tests and sub-millisecond telemetry.
- Period:
2024 - 2025• Domain:Optimization & AI - Overview: An automated courier shift scheduling platform engineered to eliminate roster conflicts and balance hub staffing using a custom Genetic Algorithm.
- Key Technical Implementations:
- Implemented tournament selection and adaptive crossover operators converging on optimal allocations in under 3 seconds.
- Formulated interactive schedule rotation visualizations and analytical dashboards using Python & Streamlit.
- Reduced manual schedule formulation time from several hours to just seconds.
- Stack:
Python,Streamlit,Genetic Algorithm,Pandas,NumPy - Links: GitHub Repository
- Period:
2024 - 2025• Domain:Web Application & System - Overview: A student mental health management and consultation platform architected as an Inertia.js Single Page Application backed by Laravel 11.
- Key Technical Implementations:
- Engineered multi-tier Role-Based Access Control (RBAC) isolating counselor, student, and administrator capabilities.
- Implemented encrypted clinical record persistence and low-latency interactive assessment questionnaires.
- Built a responsive SPA client with React 19 and Tailwind CSS without independent REST API serialization overhead.
- Stack:
Laravel 11,React 19,Inertia.js,MySQL,Tailwind CSS - Links: GitHub Repository
- Period:
2024 - 2025• Domain:Marketplace & E-Commerce - Overview: A web-based preloved goods marketplace featuring structured product discovery, active price bargaining, and direct seller WhatsApp dispatch.
- Key Technical Implementations:
- Safeguarded inventory consistency against race conditions during checkout using MySQL ACID row-level locking.
- Designed real-time price negotiation workflows connecting prospective buyers with verified sellers.
- Optimized multi-category queries and index structures to achieve sub-100ms response latencies.
- Stack:
Laravel 12,PHP 8.2,Blade,MySQL,Tailwind CSS - Links: GitHub Repository
- Period:
2024• Domain:Enterprise Inventory & POS - Overview: A centralized retail POS and warehouse management backend supporting multi-cashier operations, daily revenue logging, and inventory reconciliation.
- Key Technical Implementations:
- Structured modular Express.js RESTful APIs for high-throughput cashier transaction processing.
- Maintained an automated audit trail for incoming shipments, customer returns, and receipt bookkeeping.
- Generated print-ready daily and monthly analytical revenue statements for business owners.
- Stack:
Express.js,Node.js,REST API,JavaScript,MySQL - Links: GitHub Repository
- Period:
2024 - Present• Domain:Privacy & Messaging Utility - Overview: A high-performance web utility that updates WhatsApp profile pictures at full resolution without forced square cropping, preserving original fidelity.
- Key Technical Implementations:
- Communicates directly with WhatsApp Web binary protocol handlers via the
whatsmeowGo package. - Zero persistent data retention: authentication sessions exist purely in volatile memory with automated teardown.
- Real-time QR-code authentication state synchronization across secure WebSocket channels.
- Communicates directly with WhatsApp Web binary protocol handlers via the
- Stack:
Go (Golang),Whatsmeow,WebSocket,Privacy,CSS - Links: GitHub Repository • Live Demo
| Project | Category | Overview & Technical Highlights | Links |
|---|---|---|---|
| wa-full-pfp | Web Tool & Privacy | Full-resolution No-Crop WhatsApp profile picture utility via binary Protobuf handlers in Go. | Repo • Demo |
| Cuanin | Marketplace Web | Multi-vendor commerce platform with ACID locking, interactive price bargaining, and WhatsApp routing. | Repo |
| JT Express Scheduling | Optimization & AI | Automated courier shift scheduling engine using Genetic Algorithms in Python (<3s convergence). | Repo |
| UD. Alam Makmur Jaya | Enterprise System | Multi-terminal POS and inventory tracking system with stock mutation auditing via Express.js. | Repo |
| Quote Studio | API & Web Tool | High-throughput Telegram quote sticker generator and REST API producing canvas graphic bubbles. | Repo • Demo |
| rembg | AI Tool | AI web utility for instant image background removal powered by Python & Gradio on Hugging Face. | Repo • Demo |
- Universitas Internasional Semen Indonesia (UISI) •
B.S. in Computer Science / Informatics- Period:
2024 - Present(Active Undergraduate) - Focus: Software engineering, backend architecture, database systems, computer networking, and computational algorithms.
- Period:
- SMAN 2 Tuban •
Natural Sciences (Mathematics & Natural Sciences)- Period:
2021 - 2024(Graduated) - Focus: Analytical reasoning, mathematical logic, computational sciences, and quantitative problem solving.
- Period:
- SMPN 7 Tuban •
Junior High School Education- Period:
2018 - 2021(Graduated)
- Period:
- Open Source Developer Community (@X-SyntaxError) •
Core Contributor & Maintainer- Period:
2023 - Present - Developing open-source modules, automation scripting bots, and reviewing community pull requests and issues.
- Period:
- Student IT & Network Infrastructure Division •
Executive Committee Member- Period:
2023 - Present - Administering internal servers, configuring MikroTik network routers, and providing technical support for lab sessions.
- Period:
- Tuban Open Source & Tech Enthusiasts •
Active Member & Participant- Period:
2022 - Present - Exchanging technical insights on self-hosted servers, DNS privacy filters, and production software patterns.
- Period:
| Domain | Description & Focus | Technologies & Tools |
|---|---|---|
| Backend & Systems | High-efficiency API development, systems automation, and modular low-latency architectures. | Go (Golang), PHP, Laravel, Python, FastAPI, Node.js, Express.js, Bash Scripting |
| Database & Storage | Relational schema modeling, index query optimization, and transactional ACID consistency. | PostgreSQL, MySQL, SQLite, Redis, Filament Admin |
| DevOps & Networking | Production Linux servers, container virtualization, edge routing, and DNS hardening. | Linux (Debian/Ubuntu), Docker, Nginx, MikroTik RouterOS, AdGuard Home, Git & GitHub, Vercel |
| Frontend & Interface | Clean interfaces, responsive Single Page Applications, and fast page load speeds. | React 19, Inertia.js, TypeScript, JavaScript (ES6+), Tailwind CSS, HTML5 & CSS3, Next.js, Vite |
Interested in collaborating on software engineering projects, consulting on backend architecture, auditing network infrastructure, or just sharing technical ideas? Reach out directly via:
- Official Portfolio: www.mangrusdi.my.id
- Primary Email: nuruddinrusydiilham@gmail.com
- WhatsApp / Phone: +62 812-3364-9676
- LinkedIn: linkedin.com/in/rusdieneri
- GitHub: github.com/RusdiEneri
- Location: Tuban, East Java, Indonesia (UTC+7)