Sierra Xtine

Full-stack developer with 14+ years building production macOS applications, backend infrastructure, and multilingual learning platforms at Apple. Currently a Software Developer on the Voice Team, following a rotation leading the Internal Tools & Learning Systems team.

Experience spans SwiftUI, React/TypeScript, and backend/database architecture (MongoDB, Box API, GCP), alongside an M.S. in Cybersecurity.

Software Developer - Apple - Roanoke, VA

(2026-06)

Serve as Directly Responsible Individual (DRI) for an internal web platform used to upload, play, score, and review AI voice audio samples across global locales; lead backend infrastructure work building globally-persistent data sync and architecting a planned migration to a cloud-based storage architecture.

• Design and ship full-stack features end-to-end — from React/TypeScript interfaces to backend services and data models — partnering closely with product and design to turn requirements into production-ready software.
• Built an internal React/TypeScript/Tailwind CSS application for scoring and reviewing structured evaluation data, with dynamic export and direct cloud upload integration.
• Serve as an automation developer for the team, scripting and automating build and deployment workflows to cut manual release overhead and speed up delivery cycles.

Lead Developer, Internal Tools & Learning Systems - Apple - Roanoke, VA

(2025-07 - 2026-05)

• Architected and shipped macOS applications in SwiftUI featuring real-time dashboards, animation engines, empathy-based training games, and internal resource portals — used daily across Apple teams.
• Engineered multilingual digital learning modules (EN, JP, KR, CN) including SCORM/BYOC packages, VTT captions, HLS video, and XML-based interactive components; served as primary technical lead for SCORM debugging.
• Built content-creation pipelines that localized training materials across 4 languages, cutting delivery time and improving accessibility at scale.
• Designed icons, UI kits, animations, and app identities aligned with Apple's Human Interface Guidelines, and produced/captioned training videos in Final Cut Pro for global distribution.

AppleCare Mentor | Curator T2 - Apple - Roanoke, VA

(2021-02 - 2025-07)

• Independently developed a full STEM mentoring app in SwiftUI — animated tile interfaces, empathy-based mini-games, and real-time coaching metrics.
• Created custom internal branding — logos, icons, and presentation templates — adopted across departments.
• Produced weekly live presentations and coached advisors on emotional intelligence, active listening, and communication through a self-designed curriculum.

Pro Services Support Advisor (T1–T2) - Apple - Roanoke, VA

(2014-07 - 2021-02)

• Used internal macOS/iOS diagnostic tools across thousands of support cases — driving award-winning resolution scores.
• Documented clear, user-friendly technical resolutions, contributing to an internal knowledge base used by other advisors.
• Facilitated peer 'art of the call' training circles focused on tone, empathy, and technical clarity.

Operations Manager / Designer / Audio Engineer - Press Record LLC

(2007-04 - 2021-01)

• Directed creative campaigns and maintained visual/audio brand identity across multiple platforms.
• Designed album covers, branding materials, and promotional assets for recording artists and advertising agencies.
• Mixed and mastered audio using Pro Tools and Logic Pro; produced content for local radio and large ad agencies.

M.S. - Information Technology, Cybersecurity Concentration - American InterContinental Univ. (2025)

B.S. - Digital Investigations - American InterContinental Univ. (2019)