Sebastien Dornel - |-| Github: sdornel | LinkedIn
Full Stack Software Developer
Specialized in JavaScript based programming with a former background in fitness and healthcare. Always learning new things and taking on new projects. Proficient in French and Romanian, with a passion for staying active.
TECHNICAL SKILLS
JavaScript, Typescript, Angular2+, NestJS, Node, express, React, Redux, React-Native, expo, Jest, Jasmine, unit testing, Cypress, Postgres, SQL, PSQL, E2E testing, GitHub, Docker, GraphQL, TypeORM, Amazon Web Services, RxJS, REST API, Object Oriented Programming, Java, Ruby, Agile, Git, HTML/CSS
EXPERIENCE
NumbersUSA: Full Stack Software Engineer 05/2024 – present
Within one month took charge of the organization’s React and React-Native applications
Took the lead on setting up unit testing infrastructure across various codebases
Resolved scalability issues preventing users from using the organization’s websites during periods of high traffic
Updated node packages within the org’s React-Native and React applications, enhancing security and performance
Wrote over 40 pages of documentation for code that was created by external contractors
Wilco Group: Software Engineer 12/2023 – 04/2024
Built a financial application using websockets, Angular 17, and node to show data changes in real-time
Created web scraper capable of parsing 70,000 lines of text in 10 seconds or less
Developed a java application with the ability to retrieve, display, and update data records through the command line
Modernized an older React application by migrating to Next.js and made it more user friendly
The Swift Group: Full Stack Software Engineer 12/2020 – 12/2023
Developed large scale enterprise budgeting application for federal government from end of prototype phase to initial release
Engineered scalable server side logic with Node.js and NestJS using a multi-layer API approach
Orchestrated framework upgrade from Angular 12 to Angular 16 with another developer to enhance performance and security
Volunteered to resolve high priority performance issues. Application became 11x faster in certain places
Engineered customer business logic to create a large dynamic form with 43 form fields and 8 modes of behavior via a component factory with limited time to implement a solution
Led development of features requiring interactions with complex relational data and dependencies across both client and server applications
Documented complex logic. Some of the documentation was referred to by the government customer
Enabled user the ability to reset system preferences back to default setting through the integration of a microservice
Resolved SQL injection and client side security issues, protecting the application from malicious parties
Leonard Piano Tuning Services: Web Consultant 08/2020 – 02/2021
Worked with a freelance piano tuner to increase brand visibility by designing a business website
EDUCATION
Flatiron School Washington, DC
Full Stack Web Development Program 03/2020 – 06/2020
George Mason University Fairfax, VA
Bachelor of Science in Kinesiology 09/2014 – 05/2018
