# David Arellano > Software Engineer @ Tesla | TypeScript, GraphQL, React Location: Los Angeles, California, United States Profile: https://flows.cv/davidarellano As a self-taught software engineer, I have a passion for learning new technologies and solving challenging problems. I have acquired multiple skills in web development, serverless architecture, and GraphQL through various online courses, platforms, and projects. I have worked as a software engineer at Tesla, where I took the lead in developing auto-scheduling calendar widgets and internal tools to optimize appointment scheduling processes for internal teams. I also improved and migrated a legacy calendar application to a modern React framework, enhancing its performance, design, and features. Previously, I worked as a software engineer at Omnis Benefit Plan Administrators, where I developed dynamic rendering application forms, rebuilt and redesigned Wordpress websites in NextJS, designed and implemented a serverless IVR system, and created new APIs for online enrollment and webhooks. I also completed a software engineering internship at Tipe, where I wrote documentation and built coding examples of using Tipe in React, Vue, and Angular frameworks, and built an internal admin panel to view and search analytical data. My core competencies include Javascript, Python, HTML, CSS, React, Vue, AngularJS, Node.js/Express, MySQL, Postgress, MongoDB, AWS Lambda, AWS Connect, AWS, and Linode. I am also proficient in Bootstrap, Material UI, Bulma, and IVR. I enjoy teaching new people how to code and encouraging them to work hard every day. My goal is to continue to grow as a software engineer and to contribute to the next big gadget on the market. ## Work Experience ### Software Engineer @ Tesla Jan 2020 – Jan 2023 | Fremont, California, United States - Took the lead in driving the development of auto-scheduling calendar widgets, streamlining the appointment scheduling and rescheduling workflow for internal teams. - Developed internal tools to optimize appointment scheduling processes for Tesla employees, resulting in increased operational efficiency. - Improved a legacy calendar application by optimizing load times, enhancing codebase readability, and introducing new features such as weather widgets, drive time visibility between appointments and drag and drop appointments providing a more comprehensive scheduling experience. - Successfully migrated the legacy calendar application to a modern React framework, concurrently updating the application's design and user interface for a more contemporary and efficient user experience. - Leveraged GraphQL to develop queries and mutations tailored to enhance the efficiency and versatility of scheduling APIs, facilitating more seamless and productive interactions for both the scheduling team and fellow developers ### Software Engineer @ Omnis Benefit Plan Administrators Jan 2018 – Jan 2020 | Clovis, California - Developed dynamic rendering application forms for health and funeral plans to improve the quality of submitted data and give the user a cleaner/unique experience depending on conditional logic - Rebuilt and redesigned Wordpress websites in NextJS (React SSR Framework) drastically improving SEO and load times by 4x - Built React Component library to be used across the front-end stack to improve on productivity - Designed and implemented a serverless Interactive Voice Response (IVR) system to reduce internal costs of the health department and to relieve stress on current customer service operators using AWS Lambda - Created new API’s for online enrollment and webhooks with 3rd party services in Python backend - Implemented new front-end broker tools to assist with promoting Omnis products online and encourage current agents to use new online enrollment features ### Software Engineer Internship @ Tipe Jan 2018 – Jan 2018 Wrote documentation and built coding examples of using Tipe in React, Vue, and Angular frameworks. Built internal admin panel to view and search analytical data. ## Education ### Software Engineering Immersive in Computer Software Engineering Hack Reactor Jan 2017 – Jan 2018 ### Full Stack Devopment. freeCodeCamp Jan 2016 – Jan 2017 ### Web Development. HTML in CSS, Javascript Geekwise Academy Jan 2016 – Jan 2017 ### Software Engineering Self Study Jan 2016 – Jan 2017 ### Fronend Masters Jan 2017 – Jan 2017 ### Accounting and Computer Science Fresno City College Jan 2008 – Jan 2012 ### High School Diploma Madera High School Jan 2004 – Jan 2008 ## Contact & Social - LinkedIn: https://linkedin.com/in/davidtarellano - GitHub: https://github.com/dtarellano --- Source: https://flows.cv/davidarellano JSON Resume: https://flows.cv/davidarellano/resume.json Last updated: 2026-03-29