William Cadenas

Experience

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  Carpool Vita

  Nov 2018 - Jan 2019

  Full Stack Developer

  - Developed a Carpooling mobile application using React Native, implementing Redux for seamless performance across both Android and iOS platforms.- Used MongoDB for efficient storage and management of user activity data, deployed on Heroku.GitHub repository available for showcasing: Front-end, Back-end.

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  Dommo

  Jul 2019 - Dec 2021

  Front-end Software Engineer

  - Built on Node.js, Python, ElasticSearch, Redis and MongoDB to create the backend and search algorithms for a new e-commerce search engine called Dommo, handling +2 Million posts and +10k stores.- Used Vue.js and Nuxt.js for website (PWA) development.- Implemented SEO techniques including optimizing content with targeted keywords, semantic HTML tags, meta tags for each page, alt tags for images. Leveraged advanced optimization strategies like lazy loading, content delivery network (CDN) and server-side rendering. Show less

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  Universidad EAFIT

  Dec 2019 - Jan 2020

  Back-end Research Assistant

  - Built Back-end infrastructure on Flask and Pyramid using Python, which effectively managed the complex logic of the plugin and enhanced the educational platform called Moddle used by University.- Used MongoDB for efficient storage and management of user activity data, which resulted in improved user engagement and personalized recommendations.- Collaborated closely with Professor Edwin Montoya, who supervised the project, to ensure timely completion and adherence to project goals and requirements. Show less

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  Ebenezer technologies SAS

  May 2020 - Jul 2020

  Back-end Software Engineer

  - Developed software in Java for controlling a set of RFID-enabled antennas, and effectively accessed remote hardware in Mongolia through AnyDesk for troubleshooting and maintenance.- Created Linux scripts and background processes using bash to automate the verification of vehicle positioning for operations in other cities, increasing efficiency and accuracy.- Utilized VAAPI, FFMPEG, C++, and RTSP protocol to capture video and optimize with hardware acceleration/GPU-assisted encoding, improving video quality and enhancing user experience. Show less

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  Ulter Technologies

  Aug 2020 - Dec 2020

  React Native Software Engineer

  - Virtues Matter: Conducted client meetings in English to gather requirements and provide feature estimates.- Led development and improvement of React Native project for both iOS and Android platforms, successfully delivering a series features following a Scrum development approach.- Mysaic: Improved features of an existing native iOS application and developed new features as a Swift4 learner.

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  MarcoPolo (YC W21)

  Feb 2021 - Sept 2021

  Front-end Software Engineer

  - Led the development of the company's shop portal, working closely with the CTO and international contractors to deliver a highly functional and intuitive e-commerce platform.- Utilized a powerful stack of technologies including AWS Amplify, DynamoDB, Algolia, React with Typescript and Next.js, and the Ant Design CSS framework.- Developed Python Scraping to retrieve and process critical data and save in pickle format.- Successfully integrated Algolia to provide comprehensive search functionality for the website, also implemented a cron job that synchronizes the data with DynamoDB written in TypeScript. Show less

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  Globant

  Sept 2021 - Apr 2022

  Back-end Software Engineer

  - Modo: Successfully built a scalable and efficient SQS and Event Bridge system on AWS, enabling the team to effectively listen to all payments and transactions, and process them using NodeJS Back-end running on micro services successfully launched to production.- Leveraged a variety of AWS services, including NestJS, Typescript, and PostgreSQL, Data Dog to ensure the smooth and reliable operation of the system.

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  Stealth Startup

  Apr 2022 - Apr 2023

  Mid Full-Stack Software Engineer

  - Played a pivotal role in decision-making, including selecting, researching and implementing a payment method that covers 40% of user payments on the platform.- Successfully researched and implemented a full-text search feature using PostgreSQL empowering our sales team to achieve higher engagement and enabling users to find products more accurately.- Implemented advanced SEO strategies to secure the top ranking on Google in Colombia, resulting in improved visibility and traffic for the company's website.- Mentored junior developers while handling coding responsibilities, fostering a culture of learning and growth within the team. Show less

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  Treinta

  Aug 2023 - now

  Semi Senior Software Engineer