Daniel Castle Email & Phone Number

Austin, Texas, United States

• Drive schedules, budgets, and meetings between internal & external teams as the engineering program manager (EPM) for all firmware package releases on sustaining (Intel x86) data center programs• Track features & issues for each release milestone, identify blockers, and determine mitigation plans in coordination with the development, storage, network, system validation, and internal tools teams• Represent the firmware team in cross-functional meetings, functioning as a buffer between the engineering team & the rest of Apple, thereby allowing the engineering team to focus on solving engineering problems• Run core team meetings to align key stakeholders, communicate status, and update management• Publish and maintain documentation in support of each firmware package release• Provide guidance on quotes related to firmware NRE (non-recurring engineering) and licensing fees

Austin, Texas, United States

• Led Apple’s online implementation of new US regulation affecting coin and button cell batteries across Mac, AirPods, and AirTag in coordination with Legal, Safety, Ops, Product Marketing, and AppleCare• Carried out a mini-build at a factory in China by gathering build rules from cross-functional teams, creating the build matrix, and building the factory input plan (micro-schedule) in coordination with in-region teams• Drove 31 main logic board (MLB) and flexible printed circuit board (PCB) releases across the M4 Macbook Pro lineup & Mac Studio

San Diego, California, United States

• Apple’s Depth & AR/VR algorithms teams require the hardware capabilities of future shipping products in coordination with ground truth systems in order to build custom datasets with real-life user data that both verify synthetic data and ensure machine learning models are ready for planned product roadmaps.• I owned the electrical engineering plan for these hardware platforms across the full product lifecycle, building these systems in close collaboration with firmware, software, and product design teams while managing local contract manufacturers (CMs) for assembly and test.• Key contributions were electrical system architecture, design trade-offs amid ambiguity, schedule planning, risk highlighting, mitigation management, and slide deck presentation and creation for executive review.• Proficient in the surface mount technology (SMT) assembly process for flexible printed circuits (FPCs, or simply flexes), ensuring high-quality fabrication with 21 different flexes designed, built, validated, and shipped to internal AI/ML customers.• Supported shipping algorithms: iPhone & iPad’s FaceID, LiDAR, & Memoji, and Apple Vision Pro’s Hands/Face/Body Tracking for Persona (FaceTime while wearing the headset) & Capture and Relive (stereo video captured from the main cameras is reimagined from the perspective of the user’s eyes)

Cupertino, California, United States

• The iPhone HW Systems EE team is responsible for all system-level printed circuit boards (PCBs) ranging from flexible PCBs (FPCs, or simply flexes) to the main logic board (MLB) for every iPhone.• My role expanded from owning the VIS & IR camera flexes for the iPhone 12 Mini, including schematics, layout, subsystem coexistence, and validation, to eventually owning the same for all 12 flexes within the phone as builds progressed, working remotely with factories in China.• After first customer ship (FCS) of the Fall 2020 lineup, I worked early field failure analysis (EFFA) of returned iPhones, triaging incoming issues and finding solutions for how the first mass-production iPhone 12/Mini/Pro/Pro Max phones break after time spent in customers’ hands.

Boston, Massachusetts, United States

Every semester after freshman year; 5.5 semesters in total (including summers)

Boston, Massachusetts, United States

EECE 2160 - Embedded Design: Enabling Robotics, under Prof. Julius Marpaung

Cupertino, California, United States

• Completed extensive work on subsystem coexistence within the iPhone 11 Pro & Pro Max, working with cross-functional teams to debug timeline-critical hardware & firmware issues• Designed an interposer board to break out iPhone MLB signals without needing to rework any boards for debug of returned production iPhone 11 Pro & Pro Max phones after first customer ship (FCS)• Performed iPhone subsystem signal integrity and power integrity validations to ensure reliable operation over voltage, temperature, and component manufacturing variability• Schematic capture of a test board to characterize audible noise from singing ceramic capacitors• Developed Python scripts for CPU thermal and peak power models during camera streaming

Bethesda, Maryland, United States

Satellite Telecommunications

Boston, Massachusetts, United States

ALERT (Awareness and Localization of Explosives-Related Threats), a Department of Homeland Security Emeritus Center of Excellence, under Prof. Carey Rappaport. ALERT is a part of The Bernard M. Gordon Center for Subsurface Sensing and Imaging Systems (Gordon-CenSSIS), a multi-university National Science Foundation (NSF) Engineering Research Center.

Newark, Delaware, United States

Summers 2014-2016, under Prof. Chris Roberts in the Chemical & Biomolecular Engineering Department of the University of Delaware

Hockessin, Delaware, United States

Kenpo Karate

Hockessin, Delaware, United States

Grade 8 Referee

Newark, Delaware, United States

Wastewater Infrastructure

Bachelor Of Science - Bs, Electrical Engineering, Minor In Entrepreneurial Engineering, 3.82 Gpa, Magna Cum Laude

Activities and Societies: Generate Product Development Studio (Project Lead), Husky Ambassadors (Northeastern's Tour Guides), Alpha Kappa.

High School

Activities and Societies: Cross Country & Track, Student Government (Class Treasurer), National Honor Society, Academic Bowl National.