Experience
Software Engineer II – January Technologies, New York, NY
Jul 2024 – PresentSoftware Development Engineer I – Audible, Newark, NJ
Jan 2022 – Jan 2024- Developed full stack features (S to XL complexity) for an internal data ingestion app used by hundreds of operators; primarily frontend using React, Java, AWS
- Rebuilt legacy React components (navbar, global search, full pages) to reduce tech debt and align with modern practices (React hooks, functional programming)
- Investigated and aligned app with Amazon's internal design systems to prepare for frontend design system migration
- Led migration to a secure credential system using AWS IAM roles (from 8-hour to 15-minute key rotations)
- Participated in monthly on-call rotations to resolve production bugs and address user needs
Technology Analyst – Deutsche Bank, New York, NY
Aug 2021 – Dec 2021- Automated data transfer between Excel files using Python, reducing manual task time from 2 hours to seconds
- Introduced data visualization into reports, delivering new insights to the team
Software Engineering Instructional Aide – University of Michigan, Ann Arbor, MI
Aug 2020 – Dec 2020- Built Python scripts to automate randomized exam generation from JSON repositories for a custom online platform
Personal Projects
Personal Website – danielherrerias.com
Designed and developed a fully responsive portfolio website using Next.js and Tailwind CSS.
Education
University of Michigan, Ann Arbor
Aug 2017 – Dec 2020Bachelor of Science in Computer Science
Skills
Programming Languages
JavaScript, Python, C++, Java
Software Development
Git
Web Development
React, Bootstrap, Flask, HTML, CSS, NextJS, TailwindCSS, Redux, Jest
Amazon System Tech
Meridian design system, Polaris, CR process
Cloud Computing
AWS (S3, CloudFront, CloudSearch, IAM)
