Luis F.

Back-end and Systems Engineer

Sr. back-end engineer/Tech lead
11/1/2023 - 4/1/2024

As a technical leader for a project developing a Minimum Viable Product (MVP), the role involved extensive technical implementation using a variety of technologies. Developed proficiency in Typescript, ensuring strong type safety and efficient code production. Leveraged Fastify as the web framework to achieve high performance and low overhead in server operations. Utilized PostgreSQL for robust and scalable database management. Employed AWS for comprehensive cloud services, including deployment, storage, and compute resources to enhance the infrastructure. Applied Docker to containerize applications, ensuring consistent development and deployment environments. Demonstrated ability to lead technical teams and coordinate complex development tasks, resulting in the successful delivery of the MVP.

Sr Back-end engineer
1/1/2023 - 4/1/2023

Served as a back-end engineer at a fintech company specializing in financial services utilizing Pix. Contributed significantly to the successful launch of a new product while undertaking a comprehensive refactor of the existing payment system. Demonstrated technical expertise through the development and enhancement of complex financial applications. Utilized a robust stack including PHP, Symfony, and Laravel for server-side development, paired with extensive work on Redis and RabbitMQ for efficient message queuing and caching mechanisms. Employed PostgreSQL for database management, ensuring data integrity and optimized queries. Showcased skills in containerization and orchestration using Docker and Kubernetes to streamline deployment processes. Integrated CI/CD pipelines using Jenkins to enhance development workflows. Advanced collaborative efforts through version control systems such as Git and participated in code reviews to maintain high standards of code quality.

Senior Back-end Developer
12/1/2021 - Present

Maintained a legacy system for a large-scale retailer while actively planning its replacement. Developed proficiency in legacy code bases and system architecture, ensuring seamless operation during the transitional phase. Utilized skills in debugging and optimization to maintain system stability and performance. Coordinated closely with cross-functional teams to gather requirements for the new system, leveraging an in-depth understanding of existing workflows and processes. Managed version control and collaborative coding efforts using Git. Proficiency in various programming languages and frameworks essential for both maintaining the legacy system and planning its replacement enhanced technical versatility. Ensured that all operations met stringent performance and reliability standards, contributing to a smooth transition phase.

Sr. Back-end engineer / Tech Lead
2/2/2021 - 11/1/2023

Developed proficiency in Python, Golang, Flutter, and JavaScript while working in a back-end development capacity. Contributed to front-end development, operations, machine learning, and people management. Utilized Firebase for database management and implemented Apache Kafka for stream processing.

Full-stack dev
10/2/2020 - 3/2/2021

Led the development and enhancement of a foreign trade module for a government project. Gained extensive expertise in Java and Spring Boot, which were central frameworks for backend development. Strengthened frontend capabilities using Angular and TypeScript, ensuring a seamless and responsive user interface. Utilized Oracle and MySQL for database management and performed complex data migrations. Employed RESTful API design principals for system integrations and ensured robust security measures using OAuth2 and JWT. Facilitated team collaboration and code versioning through Git and GitLab. Improved application performance and scalability with Docker and Kubernetes for containerization and orchestration. Additionally, leveraged Jenkins for continuous integration/continuous deployment (CI/CD) pipelines, ensuring efficient deployment processes. Demonstrated proficiency in Agile methodologies and led several sprints, resulting in timely and effective completion of project milestones.

Tech Lead
1/2/2020 - 10/2/2020

Served as the tech lead for a pixel art editing software project, combining managerial duties with full-stack development responsibilities. Developed proficiency in languages and frameworks including JavaScript, HTML, CSS, and Node.js. Implemented user interface designs using React, ensuring a seamless and responsive frontend. Employed Python and Django for backend development, focusing on robust and scalable server-side operations. Utilized MongoDB for efficient database management and data retrieval. Streamlined collaboration and code version control through the use of GitHub. Developed and deployed CI/CD pipelines to maintain efficient and quality code releases. Enhanced the software’s performance and functionality by integrating WebAssembly for faster execution of graphics processing tasks. Ensured the overall project was delivered on-time and within scope through effective team management and agile methodologies.

Game/Web Dev
6/2/2019 - 12/2/2019

Spearheaded system design and delegated tasks for game development projects, serving as the primary programmer. Developed expertise in game programming and back-end development for web components. Utilized a range of programming languages and tools to ensure effective project execution, implementing robust architectures and frameworks. Demonstrated the ability to manage complex technical projects from conceptualization through deployment, ensuring seamless integration between various game elements and web functionalities.

Front-end
10/2/2017 - 5/2/2018

Developed interfaces for a sophisticated web system, enhancing user experience and overall system functionality. Gained expertise in HTML, CSS, JavaScript, and modern frameworks such as React. Utilized tools like Webpack for module bundling and Babel for JavaScript transpilation. Designed and implemented responsive, high-performance user interfaces following best practices and ensuring cross-browser compatibility. Collaborated with backend developers to integrate APIs and streamline data flow. Adopted version control best practices using Git for efficient code management and team collaboration. Employed Agile methodologies to deliver timely updates and improvements, actively participating in sprint planning and code review sessions.

Fullstack
2/2/2017 - 11/2/2017

Developed a web page for administrators utilizing AngularJS, created a mobile application using Ionic2 and Angular2, and built a server leveraging NodeJS and ExpressJS.

Game/Web Dev
7/2/2016 - 3/2/2018

Developed a comprehensive game using Unity, gaining in-depth knowledge of game development and 3D graphics. Contributed to various applications by creating key components with AngularJS and advancing skills in mobile app development through work with Ionic1. Further enhanced application development capabilities and understanding of modern frameworks with substantial work in Angular5.

MSCA: Web dev at Microsoft
10/2/2020