Full-Stack Developer | AI & Automation Engineer
I design and build secure, scalable systems focused on backend architecture, enterprise AI, and intelligent automation.
Portfolio: leonxlab.digital
Email: leonard.manurung@leonxlab.digital
Business: business@leonxlab.digital
LinkedIn: Leonard Manurung
GitHub: leonxlab
Backend-focused Full-Stack Developer specializing in enterprise AI systems and workflow automation.
Experienced in building production-grade systems that process large volumes of operational data, automate execution flows, and improve efficiency across industrial and business environments.
Core Focus
Backend architecture design
Enterprise AI agents
Workflow automation systems
Secure and scalable application development
Frontend: Next.js, TypeScript, JavaScript ES6+, HTML5, CSS3, Bootstrap
Backend: Node.js, Express.js, Flask, PHP, Python, REST API
Languages: JavaScript TypeScript, Python, Java, PHP, C++, SQL, VB.NET
Databases: MySQL, MongoDB, SQLite
Infrastructure: Docker, AWS, Linux, Nginx, Git
Enterprise-grade computer-based testing system with AI-assisted monitoring and behavioral detection.
The system includes encrypted data handling, real-time monitoring dashboards, and both desktop and web deployment architecture.
Stack: PHP, MySQL, JavaScript, Electron, Python
Production usage: 5,000+ users
Autonomous enterprise AI system translating natural language instructions into executable multi-step operational workflows.
The system understands complex instructions containing multiple actions within a single sentence and executes them across internal systems.
Enterprise capabilities include:
Processing multiple Purchase Order PDFs into structured database records
Extracting and validating invoice data
Automated reconciliation between PO and invoice entries
Stock quantity updates
Pricing adjustments
Order status management
Data comparison, aggregation, and transformation
Database synchronization across internal systems
Runs fully on local infrastructure with LoRA-adapted models trained on company-specific terminology and operational datasets to ensure data security and contextual accuracy.
Stack: Python, LLM API, Vector memory architecture
Automation system that monitors Excel updates and synchronizes validated structured data to cloud databases.
Includes file-trigger detection, schema validation, transformation pipelines, and secure API synchronization.
Stack: Python, Pandas, REST API
Industrial automation system converting technical drawings into structured manufacturing reports.
Parses DWG and DXF files, extracts metadata, validates components, and exports structured Excel and PDF reports.
Achieved approximately 85 percent reduction in manual processing time.
Stack: Python, Streamlit, AutoCAD API
Operational analytics and workflow management platform with KPI monitoring, access control, inventory tracking, financial reporting, and automation logic.
Stack: Next.js, Node.js, MySQL, Docker
Boccard Indonesia
June 2025
Developed industrial automation tools and reporting dashboards to streamline engineering documentation workflows. Built Python-based data processing pipelines to optimize manufacturing reporting processes.
Boccard Indonesia
January 2026 – Present
Designed and deployed an internal AI agent system running entirely on local infrastructure for secure enterprise usage.
Implemented LoRA-based model adaptation aligned with company-specific operational language and datasets.
Built a natural language execution engine capable of handling multi-action commands such as automated PO processing, invoice reconciliation, stock updates, pricing adjustments, and structured database synchronization.
Integrated AI agents directly with internal systems and operational dashboards to accelerate high-volume document processing and reduce manual administrative workload.
2020 – Present
Delivered secure web systems and backend architectures for events, personal projects, SMEs, and mid-sized businesses.
2021 – 2023
Led multiplayer system architecture projects focusing on real-time logic implementation, deployment stability, and backend performance optimization.
Open to enterprise AI deployment, local LLM systems, backend architecture consulting, and workflow automation initiatives.
For collaboration, enterprise AI implementation, or backend system development, feel free to reach out via email or LinkedIn. I am open to strategic and long-term technical partnerships.
If you are building systems that require intelligent automation, secure AI deployment, or scalable backend infrastructure, let’s connect and build solutions that execute.