# Sebastien Callait > Computer and Software Enthusiast Location: San Francisco Bay Area, United States Profile: https://flows.cv/sebastien Hey! Nice to meet you. I'm Sebastien, a Cal Poly SLO Computer Engineering Alumnus fascinated by the world of computers. Whether it's taking apart half the electronics I own, playing around with a new technology or software, or watching a 2 hour long youtube video about a tech topic, I'm there. My background includes experience in a variety of subjects from full stack development with RESTful APIs, setting up Thread IoT networks, managing projects, researching AI in cybersecurity to building PCs and optimizing their performance. If you want to talk more about any of my projects or experiences, please feel free to reach out to me at sebastiencallait@gmail.com . ## Work Experience ### Software Engineer @ Legion Technologies Jan 2025 – Present | Redwood City, California, United States ### Associate Software Engineer @ Legion Technologies Jan 2024 – Jan 2025 | Redwood City, California, United States ### Project Manager @ Hack4Impact Cal Poly Jan 2023 – Jan 2023 | San Luis Obispo, California, United States 🚀 Key Contributions: • Brought product to MVP & met with client continuously to ensure satisfaction with design • Synced bi-weekly with project advisor to update on project status • Organized weekly in-person update meetings and a few team bonding activities throughout the year ### Co-Tech Lead @ Hack4Impact Cal Poly Jan 2022 – Jan 2023 | San Luis Obispo, California, United States 🚀 Key Contributions: • Managed GitHub - (Creating issues, reviewing pull requests, linting, documentation, milestones, and sprints) • Created 9-month development plan • Performed developed onboarding and regular code reviews • Added Prettier with ESLint to homogenize code format and reduce code smells • Managing, organizing, and supporting a team of 9 developers of various levels • Taught developers useful libraries & technologies such as MUI, Full Calendar, Linting, Sendgrid, Postman ### Software Developer @ Hack4Impact Cal Poly Jan 2021 – Jan 2022 | San Luis Obispo, California, United States Worked with a team of students to develop a full-stack scheduling platform to help with donation pickups and drop-offs for the nonprofit Habitat for Humanity, San Luis Obispo County. We used the MERN Tech Stack with our front-end primarily built with React.js and our back-end with Mongoose and Express using RESTful API practices. This project furthered my experience coding in javascript, typescript, HTML5, & CSS and using the Node Packet Manager (NPM). 🚀 Key Contributions: • Handled Web App routing for all Donor & Admin pages using React Router • Created many mobile friendly pages & rewrote pages for Response Web Design • Created profile pages, backend schema, and API route • Designed backend schemas and API routes for several elements in the donation process via Mongoose and Express • Created Donor and Admin Navbar ### UX Hardware and Software Validation @ Corsair Jan 2022 – Jan 2023 For over the past year, I have been working to bring Corsair's products to the next level in both features and quality. I have lead Usability and Beta programs for a variety of flagship hardware and software products where we have provided actionable data which has lead to bug fixes and design changes. 🚀 Key Contributions: • Developed several user profiles with input from stakeholders to allow teams to gain invaluable market insights and to test products with an accurate target audience. • Managed a pool of 1400+ users • Conducted several UX programs and surveys identifying bugs and improvements for industry leading Link Cooling Ecosystem and iCUE Software. • Crafted Jira filters and dashboards to simplify issue and enhancement management for teams, and hosted cross-team meetings to drive the implementation of these changes. • Used industry leading Centercode platform in conjunction with Jira API to streamline transferring issues and enhancements identified in Beta programs directly to issue tracking platform. ### UX Validation Intern @ Corsair Jan 2022 – Jan 2022 | Milpitas, California, United States ### Software Developer @ Ryde Jan 2022 – Jan 2022 | San Luis Obispo, California, United States Full-stack development in React.js & MUI library for our front-end, MySQL for our data base, Express.js for our backend, Firebase for our user data and authentication, and all hosted on AWS. 🚀 Key Contributions: • Revamped Profiles page and added functionality for uploading and cropping profile photos • Added functionality to search bar • Improved back-end MySQL queries to filter out full rides and past rides • Added delete feature for posted "Rydes" • Helped perform user testing of the App to identify pain points in the product ### System Engineering and Project Management Intern @ Corsair Jan 2021 – Jan 2021 | Fremont, California, United States 🚀 Key Contributions: • Oversaw the set up for a new local supplier for Systems packaging saving 30% average costs and reducing lead time ~8 weeks • Involved in the testing and launch of 19 new desktop SKUs • Performed an in-depth analysis of RMAs for over 8k delivered systems • Trained new PM on company systems and processes • Performed systems testing and validations ### Instructional Student Assistant - College of Engineering @ California Polytechnic State University-San Luis Obispo Jan 2021 – Jan 2021 | San Luis Obispo, California, United States • Assisted students in lab and circuits projects ### UAV Software & Computer Vision Engineer @ Northrop Grumman Collaboration Project Jan 2020 – Jan 2021 | San Luis Obispo, California, United States The project was a remote rescue proof of concept project sponsored by Northrop Grumman. The purpose of the project was to develop a drone and RC vehicle to transport an "injured hiker" to a hospital quickly and safely. Our team was put in charge of designing an autonomous UAV to pick up the hiker at a given location and transport them back to the hospital landing pad safely. 🚀 Key Contributions: • Researched and chose an LiDAR ToF Sensor to measure distance accurately and quickly • Researched and chose DJI Digital FPV camera for computer vision based on weight, power, size, and latency requirements • Experience with Python OpenCV library using Gaussian blur, Contour-based, and Canny edge functions ### Summer Camp Counselor & Social Media Coordinator @ EFBA French Education Bay Area Jan 2020 – Jan 2020 | San Francisco Bay Area - Helped found a new camp location in Dublin, CA - Helped establish an Instagram social media account ### Summer Camp Counselor & Social Media Coordinator @ EFBA French Education Bay Area Jan 2019 – Jan 2019 • Helped foster an inclusive and multicultural learning environment for children ages 4-12. • Taught children about french culture and language through fun activities, and skits • promoted a passion for french language and culture in these young children • As a social media coordinator, helped create a social media presence on flickr and Facebook ### Assistant Instructor @ Martial Arts America Jan 2017 – Jan 2019 | Pleasanton, California • Assisted in instructing Taekwondo, Eskrima, and Jujitsu classes for children ages 4-12 years old. ## Education ### Bachelor of Science - BS in Computer Engineering California Polytechnic State University-San Luis Obispo ### Amador Valley High School ## Contact & Social - LinkedIn: https://linkedin.com/in/sebastien-callait --- Source: https://flows.cv/sebastien JSON Resume: https://flows.cv/sebastien/resume.json Last updated: 2026-03-31