Hi, I'm Manuel
I am a software developer from Miami.
Frontend-first developer building scalable web and mobile applications with React, Next.js, and React Native. Comfortable across the stack.
I’ve built products and features used by hundreds of thousands of users. Some of them are:
- Athliance Mobile App - A platform for managing and automating NIL compliance for student-athletes and universities.
- Logistimatics' Tracker Report Feature - A service for GPS tracking of shipments, assets, vehicles, and people.
- AI Book Generator - My own SaaS platform for generating entire books using AI, from concept to final draft used by authors and writers.
My developer journey
Software Developer
Code Particle Inc (June 2018 - May 2019)
In my first official software developer role, I was responsible for building a custom crypto wallet app using React Native in a monorepo setup with shared code across mobile, web (React.js), and desktop (Electron.js). Delivered pixel-perfect UIs from Figma, implemented end-to-end tests, and handled full internationalization (English/Spanish).
- Implemented end-to-end testing for mobile to ensure reliability
- Led mobile internationalization setup with English and Spanish translations
- Collaborated closely with the team and project owner, communicating blockers and updates clearly
- Reviewed and approved pull requests
Software Developer
Logistimatics Inc (June 2019 - January 2021)
Redesigned, scaled and added new features to a cross-platform application ecosystem, leading development across mobile and web while introducing automation, analytics, and data-driven features to enhance user engagement and operational efficiency.
- Directed the full redesign and development of mobile and web applications
- Integrated Google Analytics and custom Lambda functions for deep user behavior insights
- Delivered location-driven features like “trip” and “report” to drive user retention
- Developed and documented internal and public APIs for seamless third-party integrations
- Implemented GraphQL middleware for a modular and maintainable backend
- Automated SIM card activation and status reconciliation across AT&T, Twilio, and Verizon
- Contributed to a backend “rules” engine to trigger automated actions from user created custom events based on location, temperature events, and more
- Led technical hiring, including process design and interview challenge
Software Developer
Brandcoders LLC (May 2021 - October 2023)
Led the architectural and feature development of a React Native mobile app in TypeScript, aligning seamlessly with a broader platform initiative involving a Next.js web app and custom Node.js backend. Delivered rapid contributions while ensuring long-term maintainability and team enablement.
- Architected and built the mobile application using React Native and TypeScript
- Maintained alignment with existing platform structure and coding standards across mobile and web
- Integrated custom services quickly and effectively, accelerating project delivery
- Collaborated closely with the Frontend Lead to ensure consistency and adherence to technical direction
- Conducted training sessions for the client’s team to ensure a smooth handoff and sustained development momentum
- Reviewed and approved pull requests
Software Developer
AI Book Generator - My First SaaS Product (2025)
Leveraging years of experience and recent advancements in LLMs, I designed, built, and scaled an AI-powered book generation platform from the ground up. The system enables users to create entire books using a custom agent architecture, combining frontend, backend, and LLM orchestration into a seamless SaaS optimized for usability, performance, and SEO.
- Engineered full-stack platform using Next.js, Tailwind, Supabase, Stripe, and Flask with Langchain agents
- Implemented real-time AI book generation with token streaming, retry logic, and page-level memory control
- Integrated Stripe-based tiered subscription model with daily word caps and usage tracking
- Built SEO-focused blog and landing structure, resulting in 11k+ impressions and 900+ monthly clicks in under 28 days
- Created interactive tools like AI Character Generator and Chat Agent Simulation to improve user content
Want to get in touch?
I am always available for exciting discussions