Dan

Skills

• Languages: Objective-C, C, SQL, Python
• Operation Systems: Mac OS X, iOS (iPhone & iPad)
• SDKs: Cocoa, CocoaTouch, FOundation, Core Foundation
• Tools: Xcode, Interface Builder, Charles, unix shell
• Source Control: Git, Subversion, Perforce
• Speciality: Cryptography, Device Drivers (kernel and user-land)
• Methodologies: OOD/OOP, Design Patterns, Refactoring, TDD, Clean Code
• Other: GUI/UX, TCP/IP, CGI
• Applications: Apple iTunes App Store, mass market consumer applications
• Legacy: C++, Assembly, Fortran, HTML/CSS, YACC, LEX

iPhone and iPad applications

• Citrix Receiver: Provides the same functionality as the PC/MAC version, development team member
• Dream Grab: An easy yet powerful dream journal
• Hurricanes: Tracking and current storm information aggregation
• CardKing: Provides loyalty card scanning and access on an iPhone
• Lap Speed: Calculates speed per lap given a track length
• Crazy Sage: Creates crazy proverbs by randomly mixing two proverbs together
• Eliza: Provided a “parody” of “the responses of a nondirectional psychotherapist
• Hamurabi: Try your hand at governing ancient Sumeria successfully

Mass Market Applications

• ViaVoice: Voice recognition and dictation application, MacWorld 2001 Best of Show, development team member
• SafePSD S1100: Enterprise level secure removable flash storage through access control and hardware on device encryption. Implemented OS X access API and libraries, user application and auto-launch daemon
• Image Rescue 1, 2 & 3: Application for Apple Macintosh that recovers images from damaged or erased flash cards. Responsible for the design of recovery algorithms, plug-in extensibility for image formats and code implementation
• Active Memory: Method to provide meta information that is persistent across complete flash memory card data erasure
• LockTight: Secure flash memory card, camera and reader system. Architect of the security architecture covering the camera, memory card, card reader user and administration applications. Implemented the OS X applications. Video
• SafeGuard 1 & 2: Secure removable flash drive security through access controls or data encryption
• Development of ProjectX, a project management application, Cocoa with CoreData, development team member

Presentations

• Organizer for CocoaHeads and Cocoa Developers group in Fort Lauderdale CocoaHeads
• MODCOMP Users Group National Convention, LISP
• Cryptography in iOS and OSX
• Grand Central Dispatch
• Cocoa Blocks
• Coding “Best Practices” for developing code
• Regular expressions including there use in iOS 4
• Computer memory, allocation, usage and pitfalls
• OSX and iOS reference count memory management
• Unit Tests with Xcode 4.x
• OCMock in Unit Test with Xcode 4.x
• Xcode 4.2 and the features it brings including better refactoring and ARC
• Git, Xcode 4.2 integration and remote repositories
• CGPath, UIBezierPath and transforms
• Finding mathematical solutions by numeric algorithms
• TDD demonstrations of the Stack, Roman Numeral and Bowling Katas
• Public key cryptography: Diffie-Hellman, RSA, Certificates, PKI
• User Interface Design
• Best Coding Practices
• UX — Designed by Raccoons
• Sniffing The Wire – Network Analyzers
• AF477 — UX and Errors
• Professional or Artist
• Git: Getting started & Using
• Understanding Retain Count
• TDD – Test Driven Development

Research and Publications

• Marine Biological Laboratory, Research Assistant, 1988 – 1999
• Expert consultant to Cardio Renal New Drug Products Division, FDA, 1986 – 2000
• MSC Lock: Technical contributor to the usb.org USB lockable storage specification
• Verapamil Effects on Voltage-Dependent Sodium and Potassium Currents. Federation Proceedings, 49:1200A, 1990; Lipicky, R.J., Greif, P., Knudsen, K., Gill-Kumar, P., Grassi, D.
• Diltiazem Effects on Voltage-Dependent Sodium and Potassium Currents. Biophysical J., 57:129A, 1990; Lipicky, R.J., Greif, P., Knudsen, K., Gill-Kumar, P., Grassi, D.
• Flecainide Effects on Voltage-Dependent Sodium and Potassium Currents. FASEB J., 5:, 1991; Lipicky, R.J., Vargas, F., Knudsen, K., Caviedas, P., Grassi, D., and Gill-Kumar, P.

Education

• The Clean Code Video Series by “Uncle Bob” Martin
• Operating SystemDesign, graduate course, University of Pennsylvania, Audited
• Compiler Design graduate course, University of Pennsylvania, Audited
• Advanced Operating Systems (att unix), Florida Atlantic University, Audited
• Artificial Intelligence, George Mason University, Audited
• Electrical Engineering, North Carolina State University

Certifications

• Sybase Relational and Database Design
• Sybase System and Database Administration
• Sybase Performance and Tuning
• FCC Radiotelephone Operator License, First Class

Conferences Attended

• Mdevcon, Amsterdam, Netherlands, 2012 – 2014
• NSConference, Reading/Leicester, England, 2011 – 2014
• ConveyUX, Seattle, February 2014
• CocoaConf, Boston, October 2013
• ACM MobileHCI, Munich, Germany, August 2013
• WWDC, San Francisco 2003 – 2013
• CocoaConf, Washington DC, 2012
• ACM Turing Awards, San Francisco, 2012
• Voices That Matter, Philadelphia, 2010
• 360 MacDev, Denver, December 2010
• CocoaConf, Columbus, 2010
• Mac Tech, Los Angeles, 2010

Experience

• Development of the Citrix Receiver for the iPhone and iPad iOS apps. The iPad app was in the app store on day one and is currently the #3 Free Business app in the iTunes store. Worked on authentication, XML parsing, memory usage, GUI, architecture and best practices for coding and design
• Developed kernel based SCSI vendor specific command I/O device driver
• Developed kernel based AES encryption driver, PowerPC & Intel
• Developed userland USB vendor specific command device driver, PowerPC & Intel
• Developed Active Memory, a method and cross-platform SDK to provide meta information that is persistent across complete flash memory card data erasure.
• Created a fully automated one click build system from compile to installer. Developed a bug tracking system, developed a prototype file archive and retrieval system
• Developed a Python program to convert Flash memory card firmware assembly code from 8085 to 186
• Developed an installer and build system for Xcode C/Objective-C, Interface Builder, Cocoa API/Framework, user-land and kernel I/O device drivers, cryptography
• Developed Scoptec, a cognitive development educational program aimed at pre-school children
• Provided the majority of the interface work with the unix BSD kernel
• Developed a GUI front-end for IBM’s CMVC version control system for Mac OS X, installed and maintained a CVS system
• Ported PowerPlant to Project Builder
• Developed the ViaVoice installer application and registration tool
• Managed a staff of web developers and interfaced with marketing and creative on a daily basis
• Developed and upgraded java applets
• Implemented DART/doubleclick serving/tracking including dynamic tag generation
• Created programs to globally & dynamically synchronize multiple web servers and monitor their status in Python
• Developed an in-house mass membership-mail program utilizing QMail and Python
• Developed web content with HTML/DHTML JavaScrip and ColdFusion
• Interactive program to view experimental data, real-time high-speed data acquisition
• Consultant working on the ABPM CRADA project at the Cardio Renal Division of the FDA to study ABPM capabilities
• ABPM database design and creation as well as custom analysis and visualization applications
• Design and implementation of the ABPM database utilizing Sybase on a Sun workstation
• Design and implementation of various data reduction programs and GUI data interfaces for the ABPM project
• Design and creation of custom analysis and visualization applications fpr ABPM data
• Design and implementation of WAN networking between various sites for the FDA
• Design, development and testing intelligent graphical (GUI) client/server workstation software interfaced to Sybase SQL databases, DEC VAX image files, SNA LU 6.2 and IBM 3270 HHLAPI sessions
• Stress tested and corrected memory leaks, handle locking and object freeing problems in several existing MacApp/C++ applications
• Designed and implemented a parent application which provided logon verification, application management and functional requests via Apple Events
• (IAC), Sybase, SNA LU 6.2 and 3270 emulation.
• Developed FORTRAN subroutine package to interface a MODCOMP minicomputer with Rosemont MVCU/II PIO hardware for Bethlehem Steel Corporation
• Consultant on a distributed network of 11 MODCOMP minicomputers controlling Basic Oxygen Furnaces and Dual Slab Casters for SIDOR
• Developed solidification and chemistry quality models as part of a continuous caster supervisory control system for Gulf States Steel
• Port of Versaplot 2.x and Color Versaplot 9.2 to Macintosh
• Port of Color Versaplot 9.2 to Max IV
• Port of several data analysis programs to the Macintosh
• Kermit communications protocol port with enhancements to MODCOMP
• Port of Tektronics TCS and AGII terminal graphics package to MAX IV
• Member of the Galileo Deep Space Network technology demonstration project of a Token Ring network of mini-computers for the Jet Propulsion Laboratory
• Integration all three phases of project which included a high speed optical disk, high speed Token Ring communications network and T1 communications link for the JPL DSN
• Identified pathological map miss problems in hardware and firmware design of the MODCOMP 3285 super-mini computer and coordinated the resolution of the problem
• Member of team validating the operation of and resolving erroneous operation for the new 3285 minicomputer
• Designed a file manager management caching scheme for MAX32 which achieved cache hit rates greater than 95 percent
• Design and implementation of enhancements to the file manager user interface
• Definition of the user interface requirements between realix (MODCOMP’s unix) and the underlying MODCOMP MAX32 operating system
• Design of the file manager data chaining implementation
• Design and implementation of several development tools including a grep-like searcher
• Implementation of disk and tape bootstrap loaders.
• Developed two Forth interpreters, one for 6800 microcomputer another for a MODCOMP minicomputer
• Developed a micro LISP interpreter for a MODCOMP minicomputer
• Developed OS debugger with symbolication and time profiler for a MODCOMP minicomputer. The debugger had the capability to single-step through interrupt routines and thunks from 16 to 32 bit modes
• Ported the MODCOMP file manager from 16 bit to 32 bit hardware
• Ported a meta-port of the MODCOMP file manager from a proprietary OS (MaxIV) to unix
• Developed hardware diagnostic programs for MODCOMP minicomputers
• Developed a structured assembler for MODCOMP computers
• Technical lead on bringing ethernet to MODCOMP computers via way of a an 68k attached processor
• Developed IEEE-488 driver for a MODCOMP minicomputer
• Developed embedded Telnet server, async communications unix device driver
• Designed and developed a Sybase database on a Sun minicomputer for ABPM (Automated Blood Pressure Monitor) with data from over a dozen drug companies