Keiner Martínez Email & Phone Number

Canada

- Troubleshot and resolved bugs and customer issues, gaining a deep understanding of the codebase and improving system reliability and performance.- Developed features for the main application and other microservices, enhancing the modularity and efficiency of the company's architecture.- Guided the integration of Twilio into our application, improving communication capabilities and customer engagement.- Contributed to developing and maintaining a comprehensive Vue.js components library with Tailwind CSS, streamlining development and ensuring consistency across projects.

Santiago Metropolitan Region, Chile

- Developed and maintained the frontend and backend of a web application to visualize, generate PDFs, and download maintenance guidelines, improving on-site adherence and operational efficiency for mining operators.- Developed a tool for uploading maintenance guidelines in Excel format to a MongoDB database, simplifying data entry.

Region Metropolitana De Santiago, Chile

- Developed mining process-related endpoints in back-end applications that allowed communication with mobile apps.- Modified mining process workflow diagram in frontend according to client needs.

Santiago, Chile

- Improved software performance by 50% by fixing bugs related to SQL queries that were creating bottlenecks in the main process.- Developed and maintained REST APIs and other SMPP related backend solutions using Python, PostgreSQL, and Django.- Participated in the migration and implementation of all SMPP services to a new server. A solution that allowed us to maintain libraries and services up to date.- Implemented a phone number portability system, designed the database, and developed SOAP API that allowed to connect to the Chilean portability management system.- Developed an Android application that connects to our SMS sending platform, allowing clients to view their SMS campaign statuses in real-time.

Chile

- Developed financial documents classifier by using support vector machine (SVM), thus reducing manual classification time by 200%.- Trained machine learning classification models for object detection and image classification with an accuracy of over 88% by using YOLO, Tensorflow, and support vector machine (SVM) in Python.- Participated in implementing a facial access control system, integrating the graphical user interface, developing REST API for classification and data extraction of Chilean DNI. As a result, it reduced access to people with false identities by 25%.

Chile

- Performed CAD drawing on electrical designs.- Estimated materials for electrical installations.

San José De Guanipa - Anzoátegui. Venezuela

- Conducted field surveys in electrical facilities.- Designed: Indoor-outdoor lighting and outlet distributions systems, Lighting protection systems, Underground electrical duct bank, and conduits.- Wrote technical documents.- Performed CAD drawing on electrical designs.- Sized electrical equipment.

Anaco - Anzoátegui. Venezuela

- Conducted field surveys of the physical conditions of house trailers.- Wrote technical documents.- Designed: Indoor lighting and outlet distribution systems for house trailers.- Designed and analyzed home trailers building drawings.- Estimated cost and materials for house trailer building.- Performed CAD drawing on electrical designs.

Puerto Ordaz - Estado Bolívar. Venezuela

Trainer in Informatic 1 and 2. (Languages C++ and Visual Basic)