Yocemar Danilo Melo
Electronic Engineer | Full Stack / Backend Developer | AI / LLM Integration
- Cali, Valle del Cauca, CO
- yocemard@gmail.com
- +57 314 601 2622
- linkedin.com/in/yocemar
- github.com/yocemar
Summary
Electronic Engineer and software developer with 15+ years in tech, 5+ years focused on backend and full stack development, and recent hands-on experience designing production AI agent architectures. Lead developer of NovaWMS, a multi-tenant warehouse management SaaS built around a 5-agent AI architecture, with documentation designed for external AI agents (llms.txt).
Experience
- Architected a 5-agent AI system on one shared chat engine and LLM gateway: execution agent, analysis agent with per-company persistent memory, photo-vision-guided operator agent, client-facing agent, WhatsApp agent
- Built an insights engine with 8 deterministic SQL detectors for historical data analysis and AI-generated suggestions
- Implemented a multi-provider LLM gateway (Claude, MiniMax and OpenAI-compatible providers), configurable per company and per agent
- Built OCR pipelines that read documents and photos into structured warehouse data, and API integrations with clients' external services (ERPs, carriers, messaging)
- Made product documentation discoverable and consumable by external AI agents (llms.txt, well-known endpoints, agent discovery)
- Built DocTrans: AI-driven image/document processing automation for a logistics company
- Developed backend modules in PHP, ColdFusion, JavaScript and Python for a subscription/billing BSS platform serving telecom operators and MVNOs (Optus, OneNZ, Yojomo, Moose Mobile; Twilio integration)
- Supported and extended large-scale platforms serving millions of end customers and processing millions of transactions per month
- Ran payment and billing operations: invoice generation, scheduled payments, payment corrections and investigation of failed or incorrect charges
- Integrated payments through APIs, including Stripe, Apple Pay and Google Pay
- Designed and maintained complex n8n workflows (branching, retries, error handling, sub-workflows) and agents using Deno, including LLM handling via n8n tooling
- Implemented serverless functions on AWS Lambda
- Built custom WordPress plugins integrating internal software with third-party systems
- Supported the legacy platform and developed integration modules
- Handled Jira support tickets: data plan provisioning, billing/charging, usage management, activation payments, account cancellations, mobile/eSIM provisioning
- Built a PHP module integrating inventory management across Amazon AU, eBay, Catch and the company's own site with the internal order-management software
- Achieved real-time inventory sync, reduced order and return errors, automated cross-channel inventory updates
- Developed internal tools and REST APIs to automate hardware testing and deployment
- Contributed to an internal order-management system (PHP, Laravel, MySQL)
- Implemented private and public cloud platforms for telecom operators
- Implemented and supported services for telecom operators such as Claro, Tigo and Movistar, reaching millions of end users
- Configured servers, databases and network infrastructure in cloud data centers
- Automated deployment pipelines with Bash
- Managed incident response and disaster recovery for mission-critical systems
- Developed WMS features with PHP Laravel and SQL for BI reporting
- Implemented information security policies aligned with BASC and ISO standards, contributing to both certifications
- Built IT infrastructure from scratch for new branches
Skills
- Languages
- JavaScript, TypeScript, Python, PHP, ColdFusion, SQL, Bash
- Frontend
- React.js, Next.js, Vue.js, Astro, Tailwind CSS, HTML5, CSS3
- Backend / APIs
- Node.js, NestJS, Deno, Laravel, REST, GraphQL, SOAP, Microservices, Serverless, Stripe, Payment integrations
- Cloud & Infrastructure
- AWS EC2, AWS S3, AWS Lambda, AWS RDS, AWS Kinesis, AWS ECS, Docker, Linux, Windows Server, Data Centers
- Databases
- PostgreSQL, MySQL, Drizzle ORM, SQL optimization
- AI & Automation
- Multi-agent architecture, LLM integration, Anthropic Claude API, OpenAI API, MiniMax API, Agent memory systems, Prompt engineering, n8n, RAG
- Tools
- Git, GitHub, Jira, WordPress plugin development, cPanel
- Infrastructure & Networking
- Embedded systems, IoT, Networking, Telecommunications, Hardware
Education
- Diploma — Software Development, Canterbury Technical Institute, 2021
- Engineer — Electronic Engineering, Universidad del Valle, 2018
Flagship projects
Multi-tenant warehouse management SaaS: NestJS API, Next.js frontend and PostgreSQL, with five AI agents on a multi-provider LLM gateway (Claude, MiniMax), OCR of documents and photos, and API integrations with clients' external services.
Full-stack TMS built solo: NestJS 11 API and Next.js 16 frontend in a pnpm/Turborepo monorepo, PostgreSQL + PostGIS, Redis/BullMQ queues for asynchronous integrations with government APIs (RNDC, SICE-TAC), and document data extraction with Claude. Self-managed deployment: Docker on my own VPS, with every merge to main deployed automatically (CI/CD).
AI automation that processes driver images and documents for a logistics company, eliminating manual data entry.
Own technology consultancy: custom software, data/AI and cloud infrastructure, custom n8n nodes and workflow automation (n8n/Make/Zapier), and custom WordPress plugins.
Website for a cleaning company, optimized for loading speed and SEO.
Online shoe store set up to take payments with Apple Pay, Google Pay and cards.
Warehouse management system with MySQL and Laravel for the backend and admin interface, and Vue for the user interface.
REST API for the WMS with authentication and pagination, built with Laravel and MySQL.
Online store built with WordPress and WooCommerce.
Contact
yocemard@gmail.com · +57 314 601 2622 · linkedin.com/in/yocemar · github.com/yocemar