Hello. My name is Mario Altagracia Jiménez.


⚪ I am a Mid-Level Software Engineer


⚪ Currently working as a Software Engineer for Synapto.io


⚪ Actively pursuing a Master's Degree in Computer Science


⚪ With several years of experience dedicated to

driving the scalability for cutting-edge web applications

Skilled in:

Creating scalable architectures, enhancing performance, and implementing security measures.

Leveraging React, JavaScript, Next.js, Docker, MySQL, Git, and PHP technologies to develop robust software solutions.

Enhancing user retention by 87% through expertly refining UI and UX across diverse web applications.

Identifing market needs, designed, and integrated software solutions which helped contribute to over $1,000,000 in annual revenue.

Guiding clients through troubleshooting processes and resolving issues pertaining to software architecture and scaling.

What I enjoy doing when I'm not working:

Sharing my insights on React, Software Development, Product management, and good programming practices

Working as a speaker for meetups and tech conferences

Recent work

Webpage screenshot for Docs Automatic

Docs Automatic

Auto-generate API documentation from your code.

Work and accomplishments:

  • Implemented a real-time parsing engine using regex and DOM analysis to provide instant visual feedback, alongside features for exporting documentation in markdown format.
  • Built a tool that improves codebase maintainability and onboarding for new developers by ensuring documentation is always current and directly derived from the source.
  • Developed a specialized React application that analyzes code syntax (TypeScript/JavaScript) to automatically detect API endpoints, TypeScript interfaces, and JSDoc comments, structuring them into clear, navigable documentation.
  • Keywords: Vercel, JavaScript, React
Webpage screenshot for Async Champ

Async Champ

An async work tool built for distributed teams. Features work focusing tool, timezone converter, and meeting-light workflows.

Work and accomplishments:

  • Engineered a full-stack async collaboration platform using Next.js 14 (App Router), TypeScript, and Tailwind CSS, featuring real-time components for focus management, team coordination, and integration hubs.
  • Built a seamless user experience with complex state management, custom React hooks for real-time updates, and a responsive, mobile-first UI system.
  • Solved the core problem of meeting fatigue in remote teams by building a suite of async-first tools, reducing the need for synchronous meetings and enabling deep work.
  • Designed intuitive user flows that decreased the friction in daily standups and project coordination for distributed teams, as demonstrated in the live application.
  • Keywords: Vercel, JavaScript, React
Webpage screenshot for Synapto.io

Synapto.io

An AI powered software tool that develops mechanized Data APIs using agent-augmented automation

Work and accomplishments:

  • Implemented data-driven UX optimizations that reduced customer acquisition costs by 30% while increasing daily engagement 3.2x
  • Established development best practices that accelerated feature delivery by 40% while reducing production bugs by 60%
  • Keywords: AI, LLM, JavaScript, Slack, Supabase.
Webpage screenshot for APL, Austin Public Library

Austin Public Library

A public library system owned by the State of Texas with over millions of monthly visitors and online users

Work and accomplishments:

  • Optimizing a Docker-deployed, React based PWA, serving millions of monthly users.
  • Implementing database optimizations for library collections and meeting room booking platform.
  • Keywords: Typescript, React, JavaScript, Remix, TailwindCSS, Git, Node.js, Docker, Slack.
Webpage screenshot for Socially Elite, a Youtube Influencer/Podcaster management service website

Socially Elite Pro

A Youtube Influencer/Podcaster management and marketing agency. With a combined total of over 100 million Youtube video views, over 10 million subscribers gained for its clients organically, and over $1,000,000 in yearly revenue

Work and accomplishments:

  • Improved System Design and code architecture for the company’s PWA by 97%. Enhancing Software scalability.
  • Increased user interaction for company’s clients by 87% through multiple PWA UX/UI revamps.
  • Boosted conversion rates for clients by 125% via A/B testing optimizations.
  • Keywords: JavaScript, Git, Node.js, AWS, SQL, MySQL, Laravel, PHP, jQuery, Oracle Database, Slack.
Splashpage for APIplaza, an API distributing platform for developers and companies

APIplaza

A SaaS platform that provides Software Developers and I.T. companies with RESTful API data from international brands, companies, sports competitions, and national events.

*Note: All APIs are free to testing purposes, but require a RapidAPI account for development and professional use.

Work and accomplishments:

  • Acted as a solo founder for the company. Developed the entire tech stack and software suite for the entire startup.
  • Oversaw the full development of an API distribution platform within RapidAPI’s network.
  • Bootstrapped the launch of a SaaS API distribution platform, driving a 75% engagement growth.
  • Developed high-volume, RESTful APIs for developer and company use using Node.js.
  • Keywords: JavaScript, Node.js, Heroku, RestAPI, HTTP protocols, SwaggerUI.
APIplaza - A small API distribution platform | Product Hunt
Splashpage for Petwarez Inc, an online store for pet supplies and pet healthcare

PetWarez.Inc

An e-commerce store offering pet supplies and pet healthcare products.

Work and accomplishments:

  • Ensured uninterrupted operation of a secure and dependable web-based ecommerce platform, delivering pet supplies with zero website downtime.
  • Oversaw item restock, tracked inventory stock levels, and optimized resuplying strategies to support online store operations.
  • Delivered exceptional customer service, promptly addressing inquiries and effectively resolving issues to guarantee customer satisfaction and drive sales growth.