Marco Rojas
Hi, I'm Marco, a passionate software engineer with a keen interest in designing data-intensive applications and coding with microcontrollers. When I'm not working on challenging projects, you'll find me hiking, or riding a Suzuki v-strom.
Experience
Senior Software Engineer
• Development and review of new features, bugs fixes and maintenance of a multiplatform mobile app for clinical research using React Native
• Implemented a CI pipeline to automate the build process for testing and releasing new app version.
Software Engineer II
• Implemented multiple improvements to a complex web application, including updating the app library to control pagination, filters, and search using history API and React hooks.
• Identified, fixed, and released five improvements to the UX when navigating Home and Dashboards to include buttons and scrolling to preserve the app context using TypeScript.
• Updated gRPC schemas for new metrics features, improving performance and maintainability.
Software Engineer
• Designed, tested, and implemented an integration engine to transfer data for over 800k patients between multiple vendors and clients from multinational pharmaceuticals, using Node.js and AWS.
• Standardized, refactored, and implemented unit testing to load data remotely with SFTP, AWS S3, PGP encryption, mapping, and reporting reducing configuration time for new processes by 75%.
• Collaborated on a patient migration, including demographics, claims, documents, treatments, communication consents, and enrollments for more than 200k patients, using mongoDB and Javascript
• Implemented and managed 15 data integrations to transfer protected health information following HIPAA privacy and security acts.
• Implemented a feature to support template variables for nurses' call workflows Vue.js.
• Implemented multiple event-based business rules with microservices for patients with specific conditions.
System Administrator
• Containerized faculty web services using Docker.
• Configured OpenStack to provide Linux VPS infrastructure as a service for faculty projects.
Freelance Developer
• Developed an Android/iOS app with React Native to control the distribution of products around different stores in a city, reducing fraudulent transactions by 99% and increasing revenue by 20%.
• Implemented orders, registering new clients, payments, inventory, delivery routes with a REST API.
• Used Bluetooth portable printers to print store ID tags and receipts from the mobile app reducing order time by 80% and delivery time by 40%.
Lead Software Engineer
• Led a five-person squad to create an app based on a food engineering thesis research, collaborating with the Chemistry faculty.
• Developed a colorimetric analysis algorithm with a team of food engineers to determine fruits' degree of maturity according to federal standards.
Skills
- Dec 2021 | Guinness World Records - AWS BugBust re:Invent Challenge | Las Vegas, NV
- Jan 2021 | Leadership Award - Human Care Systems | Boston, MA
- May 2020 | Leadership Award - Human Care Systems | Boston, MA
- 1st Place - HubWeek - Dell's PolicyHack MA 2019
- JavaScript Algorithms and Data Structures
- Front End Libraries
- APIs and Microservices
Portfolio
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OpenGL 101
Multiple examples using OpenGL/freeglut with C++, concepts of graphics, textures, primitive forms, Bezier curves, lighting, keyboard inputs.
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OpenCV Accessibility
Used OpenCV to create user interfaces with accessibility for people with disabilities
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Optimization problems
Model creation and implementation of different optimization algorithms for NP-complete and NP-hard problems, using Lingo, Microsoft Solver and C++.
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Digital Image Processing
Implementation in C++ of different image processing algorithms such as addition and subtraction of images, grayscale, gamma correction, colorization, edge detection, etc.
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Codewars & Leetcode
My solutions to different problems from Codewars and Leetcode, using Python, C++, Java, Javascript, Ruby.
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Timestamp Microservice
Timestamp microservice to fetch a JSON with unix Epoch time and UTC given a date or timestamp.
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URL Shortener Microservice
Given a valid URL it will assign a random short id to be used as a short URL. Built using express.js API with MongoDB running on MongoLab.
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Metadata Microservice
Given a file this API will return the original filename, it's MIME type and size. Built using express.js API with Multer.
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Weather App
Weather app using Google geolocation API, Openweathermap currentweather API to retrieve weather data and display temperature in ªF or ºC, current city, current weather status and a status icon.
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Wikipedia Viewer
Web app to search articles in Wikipedia. Using Wikipedia API, React.js and Bootstrap.
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Beatbox
A website that creates music utilizing a virtual beatbox. Built with React.js and CSS3.
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Jiddu Krishnamurti
Tribute page of Jiddu Krishnamurti, built using Bootstrap.
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Pomodorus
Productivity tool to manage your work and break times. Built using React.
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React Twitch
Show the streaming status of multiple twitch channels. Built using Twitch API and React.
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Random Quote Machine
Chuck Norris random quote machine. Built using Chuck Norris jokes API, Twitter web intent for sharing, and React.
Volunteering
Mentor
• Assisting community members build full-stack web applications with Node.js, MongoDB, React, Express.js.
Instructor, Local Leader
• Hosted multiple web development lessons with Node.js versioning with git, and front-end development.
• Taught workshops to 300+ people, including students and faculty members.
Instructor
• Hosted "Intro to Docker" Workshop to teach my community how to containerize a web application.
• Hosted "Intro to Python AI" Workshop to deploy a Markov chain bot using the Twitter API and web scraped data.