Marlon Alexis Manzano Reyes

Available to hire

Hi there! I’m Marlon Alexis Manzano Reyes, a full-stack developer with hands-on experience building scalable web applications using the JavaScript ecosystem, including React, Node.js, and TypeScript.

About

Hi there! I’m Marlon Alexis Manzano Reyes, a full-stack developer with hands-on experience building scalable web applications using the JavaScript ecosystem, including React, Node.js, and TypeScript. I excel at delivering robust, user-friendly features and collaborating across teams to meet business needs. I also explore AI-assisted development to accelerate workflows while maintaining code quality and architectural integrity.

I enjoy working with cross-functional teams to define technical requirements, design solid architectures, and ship production-ready features. I mentor teammates, standardize best practices, and continuously improve development processes and tooling to deliver reliable, scalable solutions.

  • Joined July 2025

Industry experience

  • Software & Internet
  • Government
  • Professional Services
  • Education

Projects · 1

A full-featured job portal application that allows recruiters to post and manage job listings, and job seekers to find, apply, and track job applications — with a seamless real-time chat system connecting them.

This project showcases real-world, production-ready features such as:

🔐 Authentication and role-based access

📄 Resume uploads with automatic S3/local detection

📬 Email notifications via RabbitMQ-based microservice

🧠 AI-powered resume-to-job matching using Hugging Face

🗂️ Application status tracking with history and comments

🔎 Filtering, pagination, and admin-level CRUD operations

💬 Live chat with offline message sync and unread badges

🌐 Multilingual support with 10 languages via i18next

The backend leverages a modular microservices architecture for improved scalability:

Email notifications are offloaded to a dedicated RabbitMQ-powered email microservice.

Resume-job matching is powered by a standalone LLM-based microservice, deployed securely and independently.

These design choices decouple long-running or compute-heavy tasks from the main app, improving responsiveness and enabling future scalability.

Check the repo here:
https://www.twine.net/signin

  • Full Stack Developer

Work experience· 6 roles

Full Stack Developer · Dito BankSep 2025 – Present · 1 yr 3 mos

Built and maintained TypeScript/Node.js APIs (Express) and React applications; implemented authentication, business logic, and UI components for financial services, including card management, payments, and third-party integrations (KYC/KYB via Sumsub, BVNK, webhooks). Designed and optimized PostgreSQL schemas with Prisma, and implemented audit/tracking for financial transactions and user management. Collaborated with cross-functional teams and external providers.

LLM Trainer - (AI Training project) · TuringJan 2025 – Jul 2025 · 7 mos

Built and optimized JavaScript, React, and TypeScript chart visualizations using Plotly, Highcharts, ECharts, and D3.js for AI-driven analytics and decision-making. Reviewed and improved AI-generated code across multiple stacks, increasing clarity and reliability. Collaborated with cross-functional teams to define and solve technical requirements. Mentored new trainers, standardizing best practices and evaluation criteria.

LLM Trainer (AI Training project) · TuringJan 2024 – Jan 2025 · 1 yr 1 mo

Built and optimized JavaScript, React, and TypeScript visualizations for AI-driven analytics using Plotly, Highcharts, ECharts, and D3.js; reviewed and improved AI-generated code across multiple stacks; mentored new trainers and standardized best practices.

Software Development Specialist · National TreasuryJan 2024 – Jul 2025 · 1 yr 7 mos
Software Developer and IT Technician · FOPROLYDDec 2022 – Jul 2025 · 2 yrs 8 mos
Software Developer and IT TechnicianJan 2009 – Jan 2022 · 13 yrs 1 mo

Education

Bachelor's · University of El Salvador2001 – 2010
Bachelor's in Computer Systems Engineering · University of El Salvador2001 – 2010

Certifications and awards· 23

JavaScript & React & TypeScript2001 – 2025
Backend (Node.js, Java, APIs)2001 – 2025
Databases2001 – 2025
Testing & Clean Code2030 – 2025

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