Resume of Apostolos Lerios

• Unofficial transcript
• Education.
• Work experience.
• Publications/Patents.
• Other projects.
• Programming skills.
• Scholarships.
• Honors.
• Miscellanea.

My unofficial transcript, in the cryptic format of the Stanford Registrar, is available on-line.

Ph.D. in Computer Science (not completed), Stanford University.

Went on leave before composing dissertation, and after 5 years into the program, in order to cofound Align Technology (see below). My dissertation area was computer graphics and I was part of the Stanford computer graphics group. My advisor was professor Marc Levoy at first, followed by Leonidas J. Guibas.

M.S. in Computer Science, Stanford University.

Degree conferred on 9/95.

B.S. in Computer Science, Stanford University.

Degree conferred with distinction on 6/93. Highest GPA in the School of Engineering.

Cofounder, Chief Technology Officer. Metanautix, Inc., Palo Alto, CA.

2/13-present.
Full-time. Working from Austin, TX, and Palo Alto, CA. From technical oversight and design work to coding with the engineering and sales teams down-in-the-trenches for a big data analytics startup.

Senior Software Engineer (Infrastructure). Facebook, Inc., Menlo Park, CA.

6/10-2/13.
Full-time. Working from Austin, TX, with C++, Perl, PHP, Python on Linux (CentOS). Single-handedly conceived, designed, authored, and implemented the delivery-time image processing architecture of Facebook, which enables the photo layout of numerous design-centric Facebook initiatives, such as Timeline and News Feed. Single-handedly conceived, designed, authored, implemented, deployed, and tweaked an adaptive image compression algorithm that reduced image file size by over 30%, reducing storage and transmission costs as well as improving site interactivity. Made numerous contributions in image and video processing-related algorithms across company products, advised on future directions, causal analysis of obscure bugs, hardware selection. Participated in recruiting and outreach to academia. Authored (first investor) eight utility patents.

Board Member. Onward Behavioral Health, Inc., Birmingham, AL.

2/09-2/12.
Joined following private equity transaction between Onward and Magnolia Creek.

Cofounder, IT Manager. Magnolia Creek Residential Treatment Center for Eating Disorders, Birmingham, AL.

10/1/06-6/10.
Full-time. Working from Austin, TX, with PHP 4, Facebook platform, MySQL 5, Samba 3.0, Asterisk 1.4, SuSE 10.2/Linux 2.6, Windows XP SP3. Co-founded first residential treatment center in Alabama, Georgia, and Tennessee focusing exclusively on eating disorders for adult women. Completed fund-raising, acted as shareholder liaison, oversaw non-clinical activities (business development, marketing, legal, accounting, etc.) until profitability and appointment of CEO, then negotiated and completed private equity transaction. Designed, implemented, and maintained Samba/Windows-domain-based HIPAA-compliant computer system (6 permanent workstations, multiple portable workstations, 2 Linux servers with live backups, printers and FAX stations with FAX/email integration) with wired and long-range wireless LAN; heterogeneous telephony system with analog and VOIP phones on multiple LANs, long-range industrial cordless phones, entry gate integration (4 telco lines, 24 extensions); HIPAA-compliant database system for client/staff/vendor information, shift management, progress notes log, and medication scheduling, with secure Internet accessibility; promotional Facebook application.

Senior Software Developer. Marketcetera, Inc., San Francisco, CA.

2/18/08-12/4/09.
Full-time. Working from Austin, TX, with Java (JDK 1.6, Maven 2), MySQL 5, Apache Commons, Apache CXF, Spring Framework on Windows XP SP3 and Ubuntu Linux 8/9 workstations. Architecture and implementation of key components of the Marketcetera Open Source Algorithmic Trading platform. Heading ORS (main server) re-architecting/re-write and performance optimization; authentication and messaging (RPC via Web Services) subsystems; internationalization infrastructure; numerous JDK extension utilities; Maven (developer build environment) integration. Mentoring junior developers and assisting IT staff. Interviewing and recruiting.

IT Manager. Kalani Oceanside Retreat, Pahoa, HI.

9/1/05-12/22/05, 5/29/06-8/15/06.
Full-time (unpaid work/study exchange). Working onsite with SuSE 9.2/Linux 2.6, Access 2003 on Windows XP, Panasonic KX-TD1232. IT management of resort/wellness community computer systems (database, computer network, telephone network with 32-line digital & analog PBX). Also installed and linked up automated gate entry system, and security system based on digital camera automation, conducted GPS surveys, and carried out other assorted technical tasks.

Senior Engineer. PictureCode, LLC, Austin, TX.

4/11/05-10/4/05.
Part/full-time. Working onsite with C++ on Windows 2000. Architecture and implementation of proprietary software in the digital imaging market space. Further details are not available while product is in stealth mode.

Instructor. Hanoi University of Technology (in cooperation with the University of Houston - Clear Lake), Hanoi, Vietnam.

3/04 (while on sabbatical from full-time job). Operating Systems (CSCI 4534).
Full time. Tasks included course organization, giving three 4-hour lectures weekly, designing four novel programming assignments and a final examination, designing and maintaining WWW pages, office hours, grading.

Senior Staff Engineer, Software. Sun Microsystems, Inc., Menlo Park, CA.

8/20/03-3/8/05.
Transitory continuation of CenterRun role (see below) following acquisition of CenterRun by Sun.

Senior Software Engineer. CenterRun, Inc. (formerly known as Raplix, Inc.), Redwood City, CA.

4/23/01-8/19/03.
Full time. Working from Austin, TX, with Java (JDK 1.3 and Apache Jakarta libraries) and C++ (under JNI) on Windows 2000, Linux PC workstations, and Sun and AIX UNIX platforms. Architecture and implementation of key components of the CenterRun application provisioning system, automating distribution and maintenance of software in large data centers. Headed interaction with OS layer (via JNI) for Sun, AIX, Linux, PCs; file comparison engine that took into account file structure and syntax; in-memory UNIX filesystem emulator for deployment simulation (preflight); highly extensible command-line interface to application; numerous JDK extension utilities (automated support for Unicode files, multithreading framework with custom deadlock detection, etc.); snapshots of deployed components for later comparisons; framework for agent-side session management (in-memory data surviving RPC calls). Mentoring junior developers. Interviewing and recruiting.

Senior Software Developer. Fisix, Inc. (formerly known as TechFuel, Inc.), Irvine, CA.

2/10/00-3/9/01.
Full time. Working from Austin, TX, with Java atop ATG Dynamo, Oracle, and J2EE on Windows 2000/NT 4.0 PC workstations and Sun UNIX platforms. Architecture and implementation of custom JHTML extensions, enhancing designer API to components of Community Appliance, a server-side software acting as infrastrusture of community www sites. Lead J2EE/JSP compliance initiative. Implementation and design of modules for yellow pages-like directories, classified ads, and news articles content-management infrastructure. Mentoring junior developers. Interviewing and recruiting. Assisting in developing partnerships with www design firms. Determining allocation of $60,000 annually of company funds to charities.

Senior Software Developer. Trilogy Development Group, Austin, TX.

8/19/98-1/12/00.
Full time. Working with C++, Visual Basic, COM, Win32, Java, XML, Lotus Notes on Windows NT 4.0 PC workstations. Implementation of Replication NT service: multi-threaded and multi-machine (distributed) module executing on replication server. Specification and DTD definition for personalization rules component of e-commerce platform. Extensive interviewing for recruiting department. In-house expert for several proprietary and third party technologies.

Chief Scientist. Align Technology, Redwood City, CA.

7/97-8/14/98.
Full time. Working with C, C++, Open Inventor, Motif, PERL on Silicon Graphics platforms. Also using 3D Systems' Maestro and Cyberware's scanning software. Designing and coding proprietary CAD software for patient-tailored medical device, including interface to 3D data acquisition (using medical and architectural scanners) and 3D printing. Hiring personnel for product development, and internal database maintenance. Participating in fund raising events as co-head of the technology team. Assisting in overall design of medical device parameters.

Teaching Fellow. Computer Science Department, Stanford University.

6/97-8/97. Data Structures and Algorithms (CS161).
Full time. Tasks included course organization, giving bi-weekly lectures, designing problem sets and examinations, designing and coding the course project, selecting additional readings, designing and maintaining WWW pages, organizing guest presentations, office hours, grading.

9/95-12/95. Modeling in Computer Graphics (CS348C).

Full time. Tasks included course organization, giving weekly lectures, designing assignments, designing and coding course software for simple polynomial and B-spline curve visualization, selecting readings, designing and maintaining WWW pages, organizing student and guest presentations, office hours, grading.

Research Assistant. Computer Science Department, Stanford University.

Full time. Working with C, C++, Open Inventor, and ANL macros on uniprocessor and multiprocessor Silicon Graphics (SGI) platforms.

6/95-6/97. Light Field Project.

Analyzing theory of sampling ray space. Designing practical data structures and algorithms for efficient storage and retrieval of uniformly sampled light fields.

6/93-1/95. 3D Scanner Project.

Derived and implemented multiple scan alignment (pose estimation) algorithms for 3D laser scanner (Cyberware). Assessed and improved resolution of derived computer models. Participation in weekly meetings steering the course of the project.

6/94-12/94. Volume Morphing.

Extended feature-based image metamorphosis (Beier and Neely) to 3D, producing feature-based volume morphing. Explored applications in medical imaging, with a particular focus on localized nonlinear warping transforms which register (align) datasets across different imaging modalities (CT, MRI, PET scans). Demo video was shown at SIGGRAPH '94, paper was presented in SIGGRAPH '95, and commissioned work was aired on TV by Special Broadcasting Service (Australia) and WDR (Germany).

Teacher and Computer Cluster Administrator. Stanford Youth Environmental Science Program, Stanford, CA.

6/95-8/95. Volunteer Staff.
Full time. Designed, set up, and maintained an Apple Macintosh cluster featuring local network and Internet access, and secure access to shared file servers and printers. Taught basic computer skills, HTML, and WWW navigation to staff and twenty exceptionally gifted, low-income, under-served, predominantly minority high school juniors and seniors. Led a student group through a practical introduction to engineering by means of the construction of a solar cooker, crystal fabrication, lectures, and field trips.

Teaching Assistant. Computer Science Department, Stanford University.

Full time. Worked on Apple's Macintosh Quadra and Unix platforms: SGI< Indigo, Indigo 2, Onyx, Sun SPARC 2 and 20, DEC Alpha, 3100 and 5000, HP 9000, IBM RS6000.

4/96-6/96. Data Structures and Algorithms (CS161).

Tasks included giving two lectures, leading weekly problem-solving sections, designing and managing the course project, preparing/revising course handouts, 3 hrs/week of office hours, grading, and secretarial tasks.

1/96-4/96. Introduction to Computer Graphics (CS248).

Tasks included writing OpenGL-based class software (OpenGL Asteroids and a hierarchical modeling and animation system), giving two lectures, revising course notes (future textbook in preparation), designing one assignment, managing electronic submission of all assignments, 4 hrs/week of office hours, and grading.

4/95-6/95. Introduction to Computer Graphics (CS248).

Tasks included upgrading class software, giving two lectures, designing midterm examination, editing assignments, 4 hrs/week of office hours, and grading.

4/94-6/94. Introduction to Computer Graphics (CS248).

Designed and coded in C++ a simplified platform-independent, Motif-based, GUI development environment and upgraded class software to use Open Inventor. Other tasks included giving three lectures, designing midterm examination, preparing a handout, editing assignments, coding software for electronic submission of assignments, 4 hrs/week of office hours, and grading.

1/94-4/94. C++ and Object-Oriented Programming (CS193D).

Tasks included giving a lecture, designing on-line examples illustrating C++ constructs, preparing a handout, coding software for electronic submission of assignments, 4 hrs/week of office hours, and grading.

Scientific Analyst and Programmer. Space, Telecommunications And Radioscience Laboratory, Department of Electrical Engineering, Stanford University.

9/90-6/91, 9/91-6/93. TSS-1 Space Shuttle Experiment.
Full time during summers, part time during academic year. Performed the analysis and coding for several projects in computational space physics for TSS-1 experiment (NASA/ASI), SETS platform. On-site support for TSS-1 mission at Johnson Space Center. Specialized in efficient computational geometry algorithms and mathematical modeling. Worked with C on the DEC 3100 and 5500, and the MicroVAX II.

3/90-6/90. CHARGE IIb Air Force Rocket Experiment.

20 hrs/week. Performed predictive electron beam tracing and data analysis for the CHARGE IIb experiment. Worked with C and Pascal on Apple's Mac II.

Software Design Engineer. Microsoft Corporation.

6/91-8/91. SQL C API.
Full time summer internship. Coded a database driver for the SQL/C X Open API (Structured Query Language access group Applications Programmer Interface). Worked with C on the Compaq 486/33 running OS/2 and the Compaq 386/20 running Windows 3.1. Developed both Windows 3.1 and OS/2 versions.

Analyst and Programmer. Widriss S.A., Athens, Greece.

7/90-9/90. Payroll Management Software.
Full time summer internship. Analyzed, designed, and coded the budget planning, payroll, and bookkeeping software using dBASE 3.0+ on the IBM XT.

1/88-6/89. Financial Analysis Software.

15 hrs/week. Analyzed, designed and coded a financial analysis software package for graphical presentation and statistical manipulation of foreign exchange currency rates. Worked with Pascal on the IBM XT.

Library Staff. University Libraries, Stanford University.

9/89-3/90. Assistant to Technical Reports' Specialist.
10 hrs/week in Mathematical and Computational Sciences Library.
10 hrs/week in Physics Library.

Scientific Analyst and Programmer. Athens College High School, Athens, Greece.

1/89-7/89. Simulation of Physics Experiments.
10 hrs/week. Designed and coded programs simulating physics experiments. Emphasis on high resolution graphics. Worked with Pascal on the IBM XT.

Programmer. Vianex S.A., Athens, Greece (Agent of Merck, Sharp & Dohme Pharmaceuticals (MSD), USA).

9/87-6/88. Database Software.
20 hrs/week. Coded database software, managing activity of company's sales personnel, using dBASE 3.0+ on the IBM XT.

Apostolos Lerios, Dirk Stoop, Ryan Mack, Lubomir Bourdev, and Balmanohar Paluri. Methods and Systems for Differentiating Synthetic and Non-Synthetic Images. Filing 2/28/2013 as 13/781,632.

Apostolos Lerios. Systems and Methods for Optimizing Order of Image Transformations. Filing 11/14/12 as 13/677,206.

Apostolos Lerios. Systems and Methods for Lossless Compression of Image Color Profiles. Filing 11/14/12 as 13/677,201.

Apostolos Lerios, Ryan David Mack, Peter Ruibal, and Dirk John Stoop. Systems and Methods for Device-Dependent Image Transformations. Filing 11/6/12 as 13/670,320.

Apostolos Lerios, and Ryan David Mack. Systems and Methods for Lossy Compression of Image Color Profiles. Filing 8/22/12 as 13/591,948.

Apostolos Lerios, Jennifer Dolson, John Pottebaum, and Dirk John Stoop. Systems and Methods for Non-Destructive Editing of Social Images. Filing 8/16/12 as 13/587,837.

Apostolos Lerios, and Jennifer Dolson. Texture Repository for Image Processing Applications. Filing 12/27/11 as 13/338,016.

Apostolos Lerios. Language Translation Using Preprocessor Macros. Filing 12/16/11 as 13/328,049.

Emilio Camahort, Apostolos Lerios, and Don Fussell. Uniformly Sampled Light Fields. Proceedings of the 9th Eurographics Workshop on Rendering (Vienna, Austria, June 29-July 1, 1998). In G. Drettakis, N. Max, eds, Rendering Techniques '98, Berlin, Germany: Springer-Verlag, 1998.

Muhammad Ziaullah Khan Chishti, Apostolos Lerios, et al. Method and System for Incrementally Moving Teeth. Provisional filing 6/20/97 as 60/050,324; filing 10/10/97 as 08/947,080.

Apostolos Lerios, Chase D. Garfinkle, and Marc Levoy. Feature-Based Volume Metamorphosis. Proceedings of SIGGRAPH '95 (Los Angeles, CA, August 6-11, 1995). In Computer Graphics Proceedings, Annual Conference Series, 1995, ACM SIGGRAPH, pp. 449-456.

Parallel Distribution Ray Tracer and Volume Renderer

Class project for Computer Graphics: Image Synthesis Techniques (CS348B), winter 1993-4. Winner of CS348B rendering competition.

Programming Languages and Interfaces

Java (incl. J2EE, JINI, Apache Commons/Jakarta technologies, Spring, Hibernate, JUnit), C++, C, SQL, PERL, XML, PHP, JSP, JHTML, HTML, ATG Dynamo, LISP, Pascal, BASIC, SmallTalk, ML, dBASE 3.0+, Prolog, Assembly for the 680x0 and MIPS R3000, Win32, COM, ATL, Maven, STL, X Window System, Motif, Open Inventor, OpenGL, ANL macros, Lotus Notes Automation, Asterisk.

Operating systems

Unix (esp. IRIX, Solaris, SuSE and Ubuntu Linux), MS-DOS 5.0, OS/2 2.0, Windows (XP, 2000, NT, 98, 3.1), Macintosh Systems 6.0 and 7.0.

• Schlumberger Fellowship; Schlumberger; $5,000 for 1994-5.
• Henry Ford II Scholarship for Highest Achievement in Engineering; School of Engineering, Stanford University; $5,000 for 1993-4.
• John Kallsen, Jr. Memorial Scholarship; Stanford University; $12,083 for 1992-3.
• Stanford University Endowed Scholarship; Stanford University; $10,109 for 1992-3.
• Stanford University Undergraduate Scholarship; Stanford University; $19,861 for 1991-2; $14,623 for 1990-1; $15,838 for 1989-90.
• Supplementary Educational Opportunity Grant; Stanford University; $4,000 for 1990-1.

• The Walter J. Gores Award for Excellence in Teaching; Stanford University; 1997.
• Deans' Award for Academic Achievement; School of Engineering, Stanford University; 1993.
• F.E. Terman Award for Scholastic Achievement in Engineering; School of Engineering, Stanford University; 1993.
• Tau Beta Pi honor society chapter treasurer; California Gamma, Stanford University; 1993-4; initiated 1992.
• Phi Beta Kappa honor society; California Beta, Stanford University; initiated 1992.
• ACM West Regional Competition, 2nd place; Association for Computing Machinery; 1992.
• Fairclough Prize; Classics Department, Stanford University; 1990 and 1992.
• The President's Award for Academic Excellence in the Freshman Year; Stanford University; 1990.
• First International Olympiad on Computer Programming, 3rd place; 1989.
• National Competition of Greece on Computer Programming, 1st place; Greek Ministry of National Education, Athens, Greece; 1989.
• Valedictorian, Mathematical Sciences, Natural Sciences, Speech Delivering, and Athletic Awards; Athens College High School, Athens, Greece; 1989.
• European Council of International Schools Math Competition, 1st place (individual), 3rd place (team); 1988.
• National Math Competition of Greece, 1st place; Greek Ministry of National Education, Athens, Greece; 1986 and 1987.
• Award of Academic Excellence; Greek Ministry of National Education, Athens, Greece; 1984-5, 1985-6, 1986-7, 1987-8, and 1988-9.

Languages

Fluent in English, Greek, and French. One year of Japanese, and one year of Signed English/American Sign Language.

Organizations/Clubs

Association for Computing Machinery (ACM) member.

Certifications

• CPR & AED for Healthcare Providers (9/8/07; American Heart Association)
• Yoga Teacher Level 1 (6/24/06; Kalani Oceanside Retreat)
• Permaculture Design (6/5/05; Texas Institute for Practical Sustainability)
• Water Quality Monitor (4/16/05; Texas Watch)
• Organic Gardener (3/24/05; Texas Institute for Practical Sustainability)

Citizenship

Dual citizen of Greece and the US.

Hobbies

Computer graphics, computational geometry, mild hiking and backpacking, gardening, woodworking, volunteering, ballroom dancing, swimming, volleyball, musicals, and reading fantasy and science fiction novels.