Batres Velasquez, Fernando Javier
Sr Full Stack Lead Developer
Throughout my career, I have gained experience across a range of projects, including remittances, international identity, data migration, real-time access validation, mass sender messaging, neuroscience attention training, finance-focused giving, payment experiences, and most recently, WEB3 with NFTs via AVAX.
Ciudad de Guatemala, Guatemala
Work Experience
Sr Full Stack Lead Developer
Truelogic
June 2022 - Present
Remote
I am currently working on an exciting project called TYB, which involves blockchain and NFTs. Our application is being developed using ReactJS for the frontend and NestJS for the backend, and we are leveraging AWS cloud services to manage queues and other aspects of the project.
Software Development Lead
Yalutec
November 2021 - June 2022
Guatemala
My primary focus was to analyze, develop, and maintain a payment processing application. This involves validating existing features to ensure proper functionality and creating new features to enhance the product.
As a team leader, I manage a team of five individuals and oversee the implementation of new features.
During my time in this role, we successfully transformed a group of individuals into a cohesive team and developed a new version of the payment application called Migo, which is specifically designed for C-Commerce and is used globally.
Sr Fullstack Developer
PayPal
July 2020 - October 2021
Guatemala
We work to facilitate international transactions and support charities around the world. Part of the team's job is to manage international campaigns and use all the technology available, including external and internal to the company. All this is based on the PayPal features using automated tests, frontend with ReactJS and more.
Software Engineering Lead
Infonet
March 2019 - June 2020
Guatemala
I led a team that created multiple minimum viable products (MVPs) for Novuskills, covering various scopes including mobile, desktop, and web applications. Two of these products were created in partnership with BrainCo and Dale Carnegie and incorporated neuroscience techniques to understand user attention levels and behavior.
Our team built the mobile application using Flutter and developed several libraries for internal use. Additionally, we designed and implemented a comprehensive cloud infrastructure based on Google Cloud Platform (GCP), utilizing both SQL and NoSQL databases. The web frontend was developed using Angular and was built to high-quality specifications.
Senior Developer
Ubiquo
January 2018 - February 2019
Guatemala
As a Backend Developer, I specialize in using a variety of technologies, including Python, NodeJS, and Java. In this role, I had the opportunity to work on an exciting project that involved developing a solution for a massive SMS sender in collaboration with companies like Tigo.
Working alongside a cross-functional team, I was responsible for designing, developing, and implementing the backend infrastructure that powered the SMS sender. This involved building a highly scalable and efficient system that could handle large volumes of SMS messages in real-time.
Medium - Senior Developer
Nicetech
November 2015 - January 2018
Guatemala
As an Android Senior Software Developer, I specialized in developing robust applications using dependency injection (Dagger2), MVP architecture, and RESTful APIs. I have extensive experience of creating high-quality apps and connecting them with multiple APIs.
One of my notable achievements includes creating an event registration app called TodoTicket. Using real-time access and Firebase, we designed and developed a seamless and user-friendly app that enabled users to register and attend events with ease. The app was built using the latest technologies and frameworks, including dependency injection (using Dagger2) and MVP architecture, to ensure the highest quality and efficiency.
Junior - Medium Developer
Velfasa
November 2013 - October 2015
Guatemala
I worked closely with the Senior Developer to develop innovative solutions for a remittances-focused company. Together, we designed and implemented custom software solutions to help streamline and optimize the company's remittance processes.
Our work involved developing various software applications, including mobile and web applications, APIs, and integration with third-party systems. We also collaborated with cross-functional teams to ensure that our solutions aligned with the company's overall goals and objectives.
Throughout the development process, I utilized various technologies and tools to ensure that our solutions were efficient, scalable, and user-friendly. Additionally, I worked closely with the Senior Developer to incorporate best practices and ensure that our solutions were well-architected and maintainable.
Languages
Spanish — Native English — Fluent Japanese — Beginner
Tech Stack
GCP React Angular Docker AWS
Design Tools
Illustrator Photoshop Figma InVision
Knowledge about
Java JavaScript Angular TypeScript Dart Flutter Python NodeJS Hibernate Android Development Firebase Analytics Firebase Realtime Database Firestore GCP App Engine GCP Compute Engine BigQuery Cloud Functions Firebase Authentication Firebase Crashlytics Firebase Hosting Firebase App Distribution Firebase Performance Monitoring Firebase In-App Messaging Firebase Predictions Firebase A/B Testing Firebase Cloud Messaging Firebase Remote Config Firebase Dynamic Links Firebase Extensions Google DataStudio Git &Github Bitbucket pipeline (CI/CD) Typedoc Google Maps API Postman Insomnia RESTful MVC Architecture MVP Architecture Flutter Bloc Pattern Bash scripting MySQL / Mariadb PostgreSQL MSSQL Scrum MongoDB NestJS ReactJS Google Cloud Platform Excel PowerPoint Word aws lambda Serverless node.js / express.js Serverless Framework Agile Development DynamoDB SQS React.js Terraform Docker SES Pinpoint NX Software Web Development OOP Programming UX
