Mark
Rejhon
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LinkedIn: www.linkedin.com/in/mark-rejhon/ |
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PROGRAMMING LANGUAGES
Java C# .NET ANSI
C JavaScript / AJAX Visual Basic / VB.NET VBA Perl / grep / sed Oracle PL/SQL Assembly (x86, 6502, 8051) Script Languages Unmanaged Languages Managed Languages DEVELOPMENTVisual Studio RIM BlackBerry JDE Eclipse Multithreading / Multi-Core InstallShield IDE NetBeans .NET, MFC, ATL, Win32 iPhone SDK PLATFORMS & MOBILE
BlackBerry (OS 4.0 to 7.0) BB10, PlayBook & QNX PocketPC / Smartphone Windows Mobile 5 / 6 / 7 NT Workstation iPhone / iPad / iPod UNIX / X-Window / X11 |
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.NET – Java – Windows – BlackBerry – Android – Mobile – Linux – iOS – Real-Time – UI Design ¤
Software developer in the IT industry
since 1992, with programming knowledge since 1986. ¤
Over 8 years of mobile platforms
including Windows Mobile, BlackBerry, Android and more. ¤
Expert in user interfaces, messaging,
XML, HTML5, XMPP, real-time communications, and more. ¤
Extensive experience in .NET, C#, VB,
Java, C++, C, and many other languages. ¤
Extensive experience in Visual
Studio, Eclipse, RIM JDE, XCode, and many other environments. ¤
New skills now include Windows 8,
QNX, BlackBerry 10, PlayBook, iOS (iPhone/iPad) Contract – Incorporated – Rejhon Technologies Inc. – PWGSC Enhanced Security Clearance
Research In Motion / BlackBerry
Nov 2012 – April 2013 BBM Software Developer Contract ¤ BlackBerry 10 Launch: Support the world-wide BB10 Launch
event. ¤ BlackBerry Messenger: Utilized Java in Eclipse, RIM JDE, agile development, source
code management (SCM), build scripts, using tools including Perforce,
Integrity, Rally. Work included improving the messaging experience, user
interface, social networking, unit tests, BlackBerry Simulator, debugging,
code reviews, collaboration, sprint planning, utilizing the Agile
methodology. Hydro One
June 2010 – Nov 2012 .NET Software Developer
Contract ¤ Agile Development: Accommodate fast-changing
requirements in an efficient manner. ¤ Tablet App for Field Inspection &
Maintenance: Worked with
C# to create a form reporting application for Windows Tablets, with some Java and
C++ for third-party applications and utilities. Utilized an Enterprise
Service Bus using SAP, Oracle, operating with Antenna / Dexterra software.
Complete software development life cycle (SDLC), for each version, from
planning to deployment. ¤ Mobile App Efficiency: User interfaces, new feature
requests, optimizations, ease of use, outdoor readability, improved
online/offline modes, wireless synchronization, improved forms, and more. Real-Time Text Standardization
Dec 2010 – Date Multiple Part-Time Projects –
Android / Windows / .NET ¤
Author of an
Instant Messaging Extension Protocol: Created an
Internet standard for sending real-time text via Jabber/XMPP messaging, www.xmpp.org/extensions/xep-0301.html ¤ Task Group Leader, Jabber/XMPP,
Real-Time Text Foundation: Collaboration with group at www.realtimetext.org/taskgroups for requirements and improvements to the protocol. ¤
Created an
Instant Messaging Application: A
demonstration app to demonstrate real-time text over instant messaging, at www.realjabber.org, compatible with Google Talk networks. ¤
Android/iPhone Messaging App
Contract with INdigital Telecom: Worked on my real-time text protocol
in prototype emergency messaging demos for texting-to-911 for NENA, EAAC, and
FCC. ¤
Java Messaging App: Software application for Gregg Vanderheiden, raisingthefloor.org. NOKIA – OZ Communications
Aug 2009 – June 2010 Mobile Software Developer –
BlackBerry / Android / Windows
Contract ¤ Visual Voice-mail App: Worked with ÒCarrier SupportÓ team to
develop a visual voice mail apps in C# and Java for Android, Windows Mobile
6.5, BlackBerry. Work included user interface
design, layout, performance optimizations, addition of new features, and code
maintenance. ¤ E-Mail Software: Code maintenance for a mobile email app on multiple platforms,
in C# and Java. |
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NET
& SERVER
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In-Touch Survey Systems
April 2009 – May 2009 Senior Software Developer –
Mobile & .NET
Contract ¤ Touchscreen Survey User-Interface for Windows Mobile: Rapid iterative development of
kiosk-style form app in C# .NET for a HTC Touch Pro mobile phone, for a large
company. ¤ User-Friendly App with Integrated Camera Functionality: This included XML, multi-threading, WinForms, store-and-forward
queues, SQL CE database, web communications, custom skinnable user interface,
splash screen, performance optimization, online and offline support, and
more. EMS Satcom
Jan 2009 – April 2009 Senior Software Developer –
Mobile & .NET
Contract ¤ Satellite Communication Library in
.NET and Compact Framework: Redesigned an improved communications API library to connect
over Iridium satellite networks via multiple devices including PDT300i and
NAL. Worked on Short Burst Data (SBD), packet data, DLL, abstraction layers,
AES256 encryption, GPS tracking, TCP/IP, RS232 serial ports, and modem-style
AT commands. ¤ Easy Messaging App for Pocket PC and
Windows Mobile: Created a
2-way mobile instant messaging app with an easy user-friendly interface,
utilizing the above satellite code. bitHeads
Inc.
July 2007 – Nov. 2008 Senior Mobile Software Developer Contract ¤ Financial and Stock Trading App for BlackBerry: Worked with a Vaultus team to create E*TRADE
Mobile Pro for BlackBerry, a stock and trading app. Responsibilities included
user interfaces, graphical improvements, real-time performance, and ease of
usability improvements. Exercised a rapid iterative software development life
cycle utilizing agile development. ¤ Medical Information App for BlackBerry, Pocket PC
and Smartphone devices:
Wrote a multi-platform medical database app in Java and C# .NET for
BlackBerry, Pocket PC, TREO, Smartphone, and iPaq devices. Work included user
interface design, graphics creation, buttons, icons, menus, and creating a
compact medicine information database for wireless synchronization. ¤ Enterprise file attachment viewer app for Pocket
PC: Worked on major performance improvements,
performance profiling, benchmarking, XML-RPC communications, and graphics. Macadamian Technologies Inc.
July 2006 – July 2007 Software Developer Full Time Employment ¤ Desktop video teleconferencing application: Worked in C++, implementing new video formats,
replacing an old H.263 video codec library with a new library using H.264 and
MPEG4. ¤ Windows Mobile UI and code porting: Worked with Avaya on a Windows Mobile SIP phone
client, improving UI design and ported source code to TREO, Pocket PC and
Smartphone OS. ¤ Embedded Software Development: Worked on the user interface of Nortel 1120E VoIP
phone. ¤ Agile methodology: Iterative software development (SDLC) covering
fast-changing requirements. Rove Mobile Inc. (Idokorro Mobile
Inc.) Mar.
2005 – Jan. 2006 Product Development Full Time Employment ¤ Mobile remote-admin app for BlackBerry, Pocket PC
and Smartphone: Teamwork on
cross-platform programming, including multi-threading optimizations and
responsiveness improvements. ¤ Created ANSI / VT100 / Linux unit tests for
MobileSSH, a telnet/SSH client for BlackBerry. ¤ Designed and implemented a new XML specification
for mobile remote-admin software. ¤ Programmed in Java, C# and C++ within several
environments including RIM JDE, SUN JDK, Visual Studio .NET 2003, Wireless
Toolkit, J2ME, ant, Makefile, GNU gcc and other tools. Stewart
Filmscreen Inc. July 2003 – Dec 2004 Management Consulting Direct Contract ¤ Visited on-site several times to Stewart
Filmscreen Inc. in Cincinnati, Ohio to test and evaluate video wall products,
and write illustrated reports for eliminating defects and improving products. |
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COMMUNICATIONS
TCP/IP sockets HTTP RS232 Serial VT100
/ ANSI Terminals GPS
/ NMEA MACRO Word Macros Excel Macros PowerPoint Outlook Forms Microsoft Access WordPerfect Macros Windows Script Host Visual Studio Macros Automation TECHNICAL
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Immersive Inc. May 2002 – May 2004 Software Engineer/User Interface
Developer Direct Contract ¤ Developed, from scratch, a user-friendly video
viewer app for a PCI video card called "HOLO3DGRAPH". Designed an
easy remote-controlled UI, using on-screen menu overlays. ¤ Created development API's to separate high-level
C++ code from low-level driver code, improved software performance, full
multithreading support, MFC and ATL, and easy installer software. ¤ Collaborated with multiple companies
including Faroudja, Genesis, and Xilinx, to refine software and drivers for
the "HOLO3DGRAPH" product, including low-level port register
programming. Theater Automation WOW Inc.
Nov. 2000 – Apr. 2002 Lead Software Engineer Direct Contract ¤ Developed a video processor, ÒTAW ROCKÓ, for
high-end home cinema and TV broadcasters. ¤ Project design, from scratch, of a user interface
framework in C++ and ATL using multithreading. ¤ Worked in C++ with video enhancement algorithms,
menu design, serial control, infrared remote sensor, automatic firmware
upgrade utility, encryption, and custom scripting language interpretor. ¤ Co-ordinated with software engineers and hardware
designers, to cut manufacturing costs. ¤ Technical writing of a fully illustrated 50-page
instruction manual, in Adobe Acrobat format. ¤ The "TAW ROCK" won the 2003 Editor's
Choice Award by "Stereophile Guide To Home Theater" magazine, Jan
2003 Issue, for best picture quality and most user-friendly on-screen menus.
Volunteer History ¤ Moderator of InternetÕs busiest BlackBerry
wireless forum, BlackBerryForums.com (2004-2008). ¤ Moderator of InternetÕs busiest Home Theater PC
discussion forum, AVSforum.com (1999-2001). ¤ Open Source developer for several Linux projects
including DOSEMU and Minicom (1994-1997). ¤ Organizer of an annual sporting event. Media Contributions ¤ Author of a BlackBerry Wireless FAQ at
BerryFAQ.com (2005 – 2006). ¤ Provided content for OÕReilly Books, ÒBlackBerry
HacksÓ (August 2005). ¤ Wrote a full chapter for OÕReilly Books, ÒHome Theater HacksÓ (September 2004). ¤ Mentioned in four different Stereophile Guide to Home Theater magazine articles ¤ Mentioned in Forbes
Magazine article, ÒPopcorn with your PCÓ (p.210 of July 24th
2000 issue). ¤ Writer for Home Theater Computer HDTV Tips for
KEOHI HDTV Website (2000). Hobby Computer Programming Projects ¤ Author of a standard real-time text protocol, and
created a Jabber/XMPP instant messaging app. ¤ Designed BlackBerry software for personal use,
and released some on BlackBerryForums. ¤ Hobby electronics work with Arduino
microcontrollers, creating embedded software. ¤ Invented several video algorithms for the open
source dScaler home theater PC application. ¤ Developed a notepad application for the iPhone /
iPod Touch using Xcode and iPhone SDK. ¤ Designed custom Linux fax and telephone server
software for my use using C, Perl and shell. ¤ Self-taught computer programming in 1986 at age
11 on Commodore 64. ¤ Created several video games for the Commodore 64
computer system in the late 1980Õs. ¤ Wrote custom telecommunications software for my
Bulletin Board System beginning in 1991. Education ¤
Completed courses at University of Waterloo towards Masters degree in
Computer Science. ¤
Graduated from Brookfield High School with full diploma. ¤
Achieved typing speed tests in the 99th percentile at over 100 WPM
(Best score 142 WPM). ¤
Pascal and Descartes math contest medalist (1989, 1992) – best
score at Brookfield High School. ¤ Become a Microsoft Certified Product Specialist (MCPS) in 1995. |
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