[sergio@lynx.com.gt] | GitHub: xemuj
Seasoned Senior Software Developer and GIS Analyst with over a decade of experience in developing innovative digital solutions for migration issues, blockchain technology, and geographic information systems. Proficient in PHP, JavaScript, and various GIS tools, I have a proven track record of improving system efficiencies, managing large-scale projects, and delivering impactful solutions. My expertise spans the creation and implementation of complex software systems, real-time GNSS network deployment, and financial management for large events. I am adept at leading cross-functional teams, with a demonstrated ability to train and mentor team members, ensuring the successful execution of projects. My leadership and technical skills have been pivotal in the development of systems that support government and non-governmental organizations in Central America.
- Developed and Implemented SIRA and SITLAM: Created the Integrated Shelter Registration System (SIRA) and the Labor Migration Traceability System (SITLAM), which are now essential tools for managing migration and shelter data in Central America. SITLAM has a legal framework in Costa Rica, enhancing its reach and impact.
- GIS Network Deployment: Led a team of 30 people in deploying a GNSS network for real-time kinematic correction, covering 90% of Guatemala and 35% of El Salvador.
- Blockchain and Cryptocurrency Expertise: Founded LYNX CRYPTO LABS, S.A., the first BTC/GTQ exchange in Guatemala, linking blockchain with traditional banking systems.
- Event Financial Management: Managed the financial operations for the Cosmic Convergence 2022 event, handling over $100,000 USD in entry fees.
- Training and Mentorship: Conducted extensive training sessions on software development and GIS for public institutions in Honduras, significantly enhancing their technical capabilities.
- Software Development: Expertise in PHP, JavaScript, MySQL, and blockchain technologies. Proficient in CodeIgniter, with experience in developing serverless applications and enhancing existing libraries.
- GIS Analysis: Skilled in using ArcGIS, QGIS, and ODK for spatial data analysis and visualization.
- Leadership and Team Management: Proven ability to lead large teams, manage project timelines, and deliver high-quality results. Experience in mentoring and training junior developers.
- Financial and Event Management: Adept at managing financial systems, both in fiat and cryptocurrencies, for large-scale events and organizational operations.
- Multilingual Communication: Fluent in Spanish and English, with intermediate knowledge of Esperanto and beginner-level Chinese.
Introduction to Digital Currencies, University of Nicosia, 2014-2015, Nicosia (Cyprus)
Computer Science Engineering, Universidad de San Carlos de Guatemala, 2007-2010, Guatemala
Forestry, Escuela Nacional Central de Agricultura, 2002-2006, Bárcenas, Villa Nueva (Guatemala)
Digital Prosecutor (fiscaldigital.net)
- Supported the control of national elections in Guatemala for the Fiscal Digital site.
- Identified critical errors in the computer system.
- Published observations in a press post by Nomada link.
Senior Software, Database, and GIS Developer (IOM, UN office)
- Supported Central American governments on migration issues, mainly with returnees.
- Created digital surveys, analyzed, and maintained databases.
- Developed the Integrated Shelter Registration System (SIRA) and the Labor Migration Traceability System (SITLAM).
- SITLAM: Developed to monitor the transit of migrant workers, particularly in the agricultural sector in Costa Rica, ensuring their regular migratory status and improving access to health services during the COVID-19 pandemic. SITLAM now has a legal framework in Costa Rica, reinforcing its implementation and scope in the country source.
- Beneficiaries include the working migrant population in Costa Rica, the Costa Rican agricultural industry, and the government.
- Conducted software development training sessions using JavaScript and MySQL for public institutions in Honduras.
- Provided GIS training to various public institutions, enhancing their capabilities in geographic information systems and data analysis.
GIS Analyst (GYFSA)
- Created a network of GNSS antennas for real-time kinematic correction online NTRIP developed by Topcon TopNETlive in Guatemala, El Salvador, and Honduras.
- Led a team of 30 people, organized into 4 surveying crews, in the topographic reconnaissance of farms up to 7 caballerías.
- Headed the geodetic points reconnaissance for orthophoto correction across Guatemala, managing a team of 20 people.
- Successfully installed a network of antennas covering 90% of Guatemala and 35% of El Salvador.
Founder of LYNX CRYPTO LABS, S.A.
- Founded the first BTC/GTQ exchange in Guatemala, linking the bank with more agencies in the country to the blockchain world.
- Technologies used: PHP, MySQL, JavaScript, Google 2FA, credit card payments, bank API for transactions, Bitcoin, and EOS Blockchain.
Software Developer (Monibus)
- Developed software to track school buses in real-time.
- Technologies used: PHP, JavaScript, MySQL, Firebase.
Projects for FLACSO
- Developed solutions using PHP, MySQL, JavaScript, and Google Auth.
SIRA (Integrated Shelter Registration System) The Fuego Volcano erupted on June 3, 2018, displacing over 4,700 people from their communities. Many people also lost their lives during the natural disaster. As part of a coordinated response to a Government request, I developed the first version of the Integrated Shelter Registration System (SIRA) to facilitate collective site management in terms of identifying affected population, family reunification, missing persons reporting, protection for vulnerable population, citizen security at shelters, and general information.
SIRA became the official tool for the Government of Guatemala to register the population in shelters and continues to be used today for reconstruction and recovery processes. During the initial response to the crisis, several lessons were learned that could have saved more lives, prevented the mismanagement of NFIs donated by the private sector and diaspora, and improved health for IDPs and inventory management at collective sites.
- PHP
- MySQL
- JavaScript
- Google Auth
- EOS Blockchain (next version)
SITLAM (Labor Migration Traceability System) Developed in response to the COVID-19 pandemic, SITLAM monitors the transit of migrant workers, particularly in the agricultural sector of Costa Rica. The system provides real-time identity documents, enabling migrant workers to maintain a regular migratory status and improving their access to rights and health services. SITLAM now has a legal framework in Costa Rica, reinforcing its implementation and scope in the country source.
Cryptocurrency Forum for the Bank Association of Guatemala Participated as a panelist and presenter before the Association, discussing how banks can leverage new technologies and improve user experience for their clients (with ceiba.io).
Groups and Associations Active member in various technology groups in Guatemala:
Translations and UX Support Supported the translation of Dapps on the EOS blockchain from English to Spanish and helped improve UX.
Financial and Event Management
- Managed payment systems for both fiat and cryptocurrencies.
- Handled entry fee collections for the Cosmic Convergence 2022 event, managing over $100,000 USD for the event source.
PHP This is my main programming language; I use CodeIgniter as my favorite framework and have improved some libraries that you can see on my GitHub.
JavaScript One of the languages I would like to focus on; I have used it for some test applications with blockchain (nothing in production) and in some serverless services.
Esperanto I know this is not a programming language, but it is awesome.
Basic knowledge of C++, Solidity, Go, Python
- Spanish (native speaker)
- English (fluent)
- Esperanto (intermediate)
- Chinese (beginner)
- Docker
- PhoneGap
- Stripe
- ArcGIS, QGIS
- ODK (OpenDataKit)
- NTRIP
- Google (most of my time)