
Luis Roberto Malaga Matias
Full Stack Developer / Software Architecture
Full Stack developer with experience building web, mobile, and fintech products end to end: architecture, development, integrations, infrastructure, and deployment. Focused on maintainable systems, robust APIs, process automation, and solutions with real business impact.
Technical Skills
Programming Languages
Frameworks & Libraries
Databases
Cloud Development
Architecture & Patterns
Other Technologies
Professional Experience
Project Coordinator and Supporting Developer
Rufi.mx — Sigma LMS
I manage the development team, planning, scope, HTTP and event contracts, and technical ownership of the project.
I contribute as a supporting developer on Go/Java backends and Sigma Console, without replacing the team that owns those areas.
I defined the base architecture of a multi-module financial management platform for credit: microservices, PostgreSQL per domain, APIs through KrakenD, events with NATS JetStream, Outbox Pattern, idempotency, DLQ, replay, JWT, RBAC, and multi-tenancy.
I designed a product engine based on versioned rules and snapshots. Each credit keeps the rule version used, with an auditable product definition and simulations.
Full Stack Programmer
Rufi.mx — Sicredito
Built end to end a digital credit fintech platform with SvelteKit, Svelte 5, and Spring Boot: registration, application, verification, disbursement, and collection.
Integrated STP, Openpay, and an identity verification provider through webhooks, CLABE validation, disbursement logic, and state synchronization.
Designed modules under hexagonal architecture with separation of concerns and dependency injection.
Implemented JdbcTemplate repositories, service contracts, and domain-driven flows.
Freelance Fullstack Developer
Freelance
Coordinated support and operations for multiple technical requirements in parallel.
Managed domains, email forwarding, and deployments on Cloudflare Pages.
Built serverless solutions with Cloudflare Workers, D1, and R2.
Built an order platform for correctional facilities with Next.js and PostgreSQL.
Developed a back office for custody staff and QR-traceable inventory.
Automated orders and WhatsApp notifications with n8n and DeepSeek.
Built scrapers with Node.js and Puppeteer for sources without public APIs.
Modernized legacy applications to improve performance, fix vulnerabilities, and adapt them to new business rules.
Node.js Fullstack Developer and SysAdmin
Obisey
Led the Integral Platform of Veracruz Cultural Heritage (IVEC), with a public catalog, filters, a centralized database, and a back office, using Angular, NestJS, and REST APIs.
Contributed to the IVEC Book Fair mobile app for iOS and Android, with an event agenda, subscriptions, and push notifications, using React Native and Expo.
Contributed to Alideti, a web and mobile medical ecosystem with scheduling, payments, records, prescriptions, reminders, vital-sign logging, and Fitbit integration.
Led the Tourflix mobile app and backend, with tour purchases, Google Maps routes, geolocated content, and a back office for creating experiences.
Contributed to the migration and integration of El Gigante de los Azulejos e-commerce with its internal systems and commercial processes.
Built REST APIs and MySQL models.
Administered Linux servers and deployments with AWS EC2, Docker, and Nginx.
Featured Projects
Sicredito: Digital Credit Fintech Platform
Development of a fintech digital credit platform with SvelteKit/Svelte 5 frontend and Spring Boot backend, covering the full flow: registration, application, verification, disbursement, and collection. Implemented integrations with STP, Openpay, and an identity verification provider, including webhooks, CLABE validation, disbursement logic, and state synchronization. Modules were structured following hexagonal architecture principles, dependency injection, and domain-driven flows.
Secure E-commerce Platform for Restricted Security Environments
Creation of an innovative e-commerce platform designed for correctional facilities, enabling inmates to order products from tablets located in common areas. The system includes a back office for guards to approve or reject orders based on inmate behavior. We implemented an advanced inventory system with unique QR codes for each product, facilitating tracking and management. The QR scanning functionality, using the device's camera, allows for real-time inventory updates and verifies waste return to confirm the product is no longer in the inmate's possession. A clean architecture was used to ensure system maintainability and scalability.
MalagaIoT: Smart Alarm System with Notifications
Production multi-tenant alarm system that processes MQTT events from ESP32 devices and routes notifications and commands through WhatsApp and Telegram. The Go backend manages device connectivity, detects disconnections automatically, and allows users to control the alarm (arm, disarm, pause) via natural language chat messages. Includes real ESP32 firmware with magnetic sensors, relays, and physical buttons. Deployed with Docker in production.
Asadero Diez: Order and Automated Marketing Platform
Development of a comprehensive platform for the 'Asadero Diez' restaurant, featuring an interactive landing page with the menu and an online ordering system (without direct payment processing). We implemented robust process automation using n8n for order management and DeepSeek for decision analysis. After each order, both the restaurant and the customer receive detailed notifications via WhatsApp. Additionally, we integrated a bot that allows restaurant staff to update order statuses, automatically notifying customers about their order's progress.
Professional Services
Development Consulting
Specialized technical advisory in software architecture and process optimization
Software Development
Creation of custom web and mobile applications with modern technologies
Video Surveillance Systems
Installation and configuration of security cameras and CCTV systems
Process Automation
Development of scripts and tools to automate repetitive tasks
Data Management
Extraction, transformation and analysis of large volumes of information
Cloud Infrastructure
Configuration and administration of AWS and other cloud platform services
Contact Me
I'm open to new opportunities, freelance projects, and collaborations. Don't hesitate to reach out.