Jonnier Martinez

Hi, I'm Jonnier — I'm building Gurwi and Clatri, two apps that together have reached over 35,000 users. I specialize in turning ideas into real, scalable products that people actually use.

Contact me here: [EMAIL_ADDRESS]

Experience

2 years 4 months - Present

  • Designed and implemented scalable web applications using .NET, C# and Angular following Clean Architecture and SOLID principles.
  • Developed microservices architecture in .NET for mass messaging system via WhatsApp, implementing patterns such as CQRS, Repository Pattern and Dependency Injection.
  • Integrated Zoho CRM through RESTful APIs for business process automation.
  • Implemented CI/CD pipelines and containerization with Docker for continuous deployment.
Remote

  • Developed WordPress websites with performance optimization and SEO.
  • Architected and implemented automation workflows with Zoho Flow and Twilio for omnichannel communication.
  • Designed analytical dashboards in Zoho Analytics with conversion KPIs (lead-to-deal ratio, win rate, pipeline velocity).
  • Configured Zoho CRM with custom workflows and automated triggers.

Projects

  • EdTech platform with +30,000 active users, architecture based on Clean Architecture and Domain-Driven Design.
  • Developed interactive class editor with Next.js, TypeScript and Server-Side Rendering (SSR) for performance optimization.
  • Implemented AI agents with Flask and OpenAI SDK, applying design patterns such as Factory and Strategy.
  • Containerization with Docker and service orchestration for horizontal scalability.

  • Agentic application built with Flask and Python following Clean Architecture (Domain, Application, Infrastructure layers).
  • Integrated OpenAI SDK for natural language processing and complex task automation.
  • Implemented RESTful API with FastAPI, validation with Pydantic and OpenAPI/Swagger documentation.

  • Architected GitHub API integration using OAuth 2.0 for authentication and repositories as data store.
  • Implemented abstraction layer for CRUD operations over GitHub as serverless database.

  • Open source library for WhatsApp link generation with parameter validation and URL encoding.

Education

April 2022 -- October 2024

  • Software Analysis and Development, Data Structures and Algorithms.
  • SQL, relational database design and UML modeling.
  • PHP programming and Object-Oriented Programming (OOP).
February 2020 -- December 2021

  • Development of teamwork, empathy and leadership skills.
  • Cultural diversity understanding and intercultural communication.

Awards & Recognition

2025

  • First place in #BuildInPublic category for transparency, storytelling and community engagement.
  • +13,000 users, +1,000 App Store reviews with 4.9 average rating.
  • Developed proprietary .gurwi file format for interactive lesson rendering.
  • Stack: Flutter, Supabase, PostgreSQL, custom content editor (Gurwi Educators).
[EMAIL_ADDRESS]