Want Sandeep to work for you?

Are you looking for a person with blend of research and engineering mind, a thinker, a designer and not just a coder? Relevant sections of this profile will help you in your search.

What I am looking for

I am interested in use of technology for common man's benefit in day to day life and would love to contribute in non-computers related developments as well, putting to use the knowhow in Mechanical, civil, food processing and agricultural engineering from graduation days.

What I can contribute

My experiences with evolving hardware, tools, OSes and organizations can be useful for startups and small organizations aiming to become one of the good organizations in their fields and/or intending to move towards open-source in their business. I am neither fanatic about systems work nor allergic to windows or any other OS, or applications programming - each of these is just another program.

Mode of Working

Work Experience

• Currently
  • Associated with Pune University Computer Science Department (PUCSD) as visiting faculty. Taught following courses so far during this association -
    • Computer Graphics (A.Y. 2005-2006). I handled the topics of drawing curves and surfaces, illumination and shading, texture mapping, animation and morphing.
    • DataBase Management Systems (A.Y. 2005-2006). I handled file organisations, data protection (concurrency, recovery, security and integrity), query optimisation and performance improvement aspects of databases.


• June 2005 to August 2005
  • Worked as consultant for UNM Systems (I) Pvt. Ltd. (now NetXen).


• April 2005 to May 2005
  • Worked as consultant for LinSysSoft Technologies Pvt. Ltd..


• June 2001 to Jan 2005
  • Associated with Codito Technologies Pvt. Ltd. (earlier Morelinux.com) as developer consultant.
  • Taught following topics/courses at Dept. of Computer Science, University of Pune, as visiting faculty (mentioned years indicate start of academic year) :
    • Physical Layer and part of Data Link Layer (Computer Networks, 2004)
    • Concrete Mathematics (Concrete Maths and Graph Theory, 2003)
    • Low Level Programming (2002)


• July 1995 to June 2001
  Associated with Dept. of Computer Science, University of Pune as lecturer (initially fellow). During this period -
  • Taught following courses (mentioned years indicate start of academic year) :
    • Computer Graphics (2000)
    • Computer Networks (1995 - Physical Layer, 1999-2000)
    • Concrete Mathematics (1995)
    • Data and File Structures (1996-98)
    • Distributed Operating Systems (1999)
    • Introduction to Programming (1996-98)
    • Low Level Programming (1995)
    • Operating Systems (1998-1999) - used NACHOS for practicals.
  • Handled system administration responsibilities.
  • Managed "Natural Language Teaching Teacher's Training Program" workshop (July 1995).


• May 1995 to June 1995
  • Taught C++ and Prolog at ISSC, University of Pune, as visiting faculty.
  • Worked on project basis at Antech Microsystems

Operating Systems Experience

Hardware Exposure

Languages Known

Packages/Tools Familiarity

Academic Qualifications

    ----------------------------------------------------------------------------
    Degree             Marks/CPI  Year  Institution            Board/University
    ----------------------------------------------------------------------------
    M.Tech.(Comp.Sc.)  3.83/6.0   1995  Comp. Sci. Department  Pune University
    B.Tech.(Ag.Engg.)  7.53/10.0  1992  I.I.T. Kharagpur       I.I.T. Kharagpur
    XII                84.0%      1988  B.V.M. Nainital        CBSE
    X                  76.2%      1986  B.V.M. Nainital        CBSE
    ----------------------------------------------------------------------------

Additional Qualifications

Other Achievements

• Sr. div. NCC 'C' certificate
• Editor of institute's Hindi magazine at I.I.T. Kharagpur (1991-92)
• Indian govt.'s boarding scholarship (1983 - 1988)

Areas of interest in Computer Science

Mailing list/Newsgroup etc. activities

In 2002, Goahead newsgroup participation got me an invitation from John Vogel (CTO, GoAhead Software) to join his Technical Advisory Board, which I could not accept for some organizational reasons then.

Projects at UNM Systems

• Augmented the "UNM NIC Linux driver's virtual memory requirement reduction" solution with support for multiple adapters and transparent handling of big block accesses.
• Later I was assigned the task of trying out long running tests on network performance improvement product and "find & fix" bugs that I came across.

Project at LinSysSoft

Implemented a solution for reducing the virtual memory requirement of UNM NIC Linux driver.

Projects at Codito

• Member of ARC team (June 2004 - Dec 2004)
  • Tweaked uCLinux distribution (1.3.4) to integrate use of genromfs and invocation of uClibc configuration in build process. Also tested uCLinux port for A5 processor with busybox (pre-1.0).
  • Patched PTXDist (0.6.1) and crosstool (0.28-rc36) to build cross- toolchain (gcc 2.95.3 with uClibc 0.9.26) for ARC 700 and use that to generate Linux image containing an initial file-system image with selected applications. Also provided a facility in PTXDist for selected packets (packages) that allowed user to simply 'make world' to build and integrate them after any change in their configurations.
  • Contributed towards embedded (Linux) BSP/distribution product specification for possible distribution from Codito.

• Firewire stack for a digital camera (Feb 2004 - June 2004)

  After initial studies eCos was chosen over uCLinux because of hardware resource constraints, and TNF (Firewire stack from Apple) was ported to eCos. My role was to provide DCam config rom and communication with sensor over I2C, and assist in debugging the Firewire stack.

• Member of "Codito's OS on UMS" team (Aug 2001 - Dec 2004)
  • Gave inputs for Codito's multiprocessor eCos, that went on to become Codito's multiquad multiprocessor DSP OS by 2001 end (further referred as CodOS), to utilise the CMP architecture from Cradle. After this I was not active on this team during Jan-Sep 2002. Later looked at RTOS compliance issues that could/need-to be addressed by CodOS, apart from suggesting/ incorporating few space/time code improvements for performance enhancement.
  • Contributed in design of a framework for interoperability between CodOS and eCos. The framework could easily be adapted to interoperate with OSes other than eCos. Later on implemented and optimized it for both OSes running simultaneously on UMS chip.
  • Improved the build process and implemented a configuration mechanism based on Linux (2.4.x) configuration tool. Mainly Menuconfig script was modified to provide the needed features.
  • Implemented couple of Profiling, Instrumentation, and compilation and tests Regression frameworks aimed at batch mode operation with almost no user intervention, using Tcl, AWK and Bash scripting. Most of these had support for auto-resuming, controlling the framework execution via configuration files, user-friendly error checking and logging, and auto-inferring certain execution parameters wherever possible.
    Regression frameworks involving tests execution, also supported - timed execution of tests to allow regression to progress in event of a faulty test, and check for erroneous execution of test and dump required processor registers and stacks in readable form.
  • Designed and implemented C macros for OS/tests code for profiling and instrumentation frameworks and contributed in design of instrumentation data structures.
  • Designed and implemented methodology, data structures and C macros to update the tests to allow tests regression frameworks to determine the execution status of test, in the absence of message printing support in the OS.

• Member of "eCos" team (March 2002 - Jan 2005)
  • I was responsible for stabilizing the initial eCos v1.3.1 SMP port for UMS - mainly hal and kernel packages, and later maintaining it in sync with public eCos repository and newer versions of UMS chips, simulator and development tools, optimising the UMS HAL and updating it for inter-operation with Codito's DSP OS - both running simultaneously on UMS chip. In the process I also found/fixed kernel code and couple of tests in public eCos repository that suffered from race conditions under SMP configuration.
  • Added support for using eCos ROMFS for storing static web pages in Goahead webserver.
  • Designed and implemented regression suite for eCos tests using Bash script and Tcl, with features like resume support and timed execution of tests that allowed regression to progress even when some of the tests misbehaved.
  
  During March - September 2002, I also lead three Codito engineer team for an assignment with it's client.

• Audio codec as virtual device on Linux (July 2001 - March 2002)

  Experimental work that explored the possibilities of performance gains for VoIP applications on Linux. Some audio codecs were implemented as virtual devices in Linux (2.4.10) and corresponding modifications were made in openh323 libraries to work with these. Test setup included Win2K and Linux hosts. My responsibilities included implementing virtual devices and assisting in openh323 libraries modification apart from leading the team.

Project at Antech microsystems

• Developed a UNIX command line utility to read/write data files from/to paper tape and deployed it at client site Rolta (I) Ltd., Bombay.

Projects offered during teaching

• Real Time Extensions to Linux (M.Tech degree project)
• Incorporating load balancing in Beowulf OS (Distributed OS)


• Computer Networks projects
  • Design and implementation of a Name Server for server programs.
  • Implementation of a simple banking system using RPC
  • Implementation of load balanced dynamic cluster of servers to provide faster service to clients
  • Chat/Talk across DOS, Linux, Windows using TCP/IP and IPX protocols.
  • Accessing/sharing resources (at least files) between machines running different OS (MS-DOS,Linux,Windows)
  • Normally telnet/rlogin from A->B->C->D...->M and working on M sitting at A gives poor response time and increased traffic, when all of the machines are on same local network. Project was focused on identifying such chains and short-circuiting A->M in transparent manner.
  • To implement a set of services having different priorities and interdependencies (kind of prerequisites). If you authenticate yourself for a particular service, you need not do it again (until you sign out completely) to access a related service of lower priority but still need to verify your identity for higher priority or other set services.
  
  
• Low Level Programming projects on MSDOS
  • .BAT to .EXE/.COM converter
  • Accessing directories/files on hard disk of other PC using serial/parallel port
  • Accessing printer attached on one PC from other PC
  • Boot sector and executable files virus, and the vaccine to tackle it.
  • Command editor with history and other facilities like BASH
  • Devnagari keyboard
  • Disk copier
  • Disk defragmenter
  • Disk editor
  • Enhance floppy storage without data compression
  • Formatting floppies in background (unix, dos, other formats)
  • Implementation of coroutines
  • Mouse device driver
  • Program loader/unloader
  • Screen capture using mouse and rubber-banding
  • Screen saver
  • Self extracting files
  • Software locks for copy protection (modifying executables)
  • Sound device driver
  • Task scheduler

Projects Done as student

• Implementation Of A Framework For Global Data Flow Analysis (M.Tech Degree Project)


• Surface modeling using Bezier and B-Spline surface generation techniques
• Design and implementation of a mini Hospital Management System in ACCELL
• Implementation of LL(1) grammar checker
• Implementation of Grid file structures
• Implementation of a mini shell on DOS with facilities like UNIX shell
• Implementation of a mini text editor in 8086 Assembly
• Implementation of Quine Mckluscky method of boolean expressions minimization

Contact Me

• blacksun [AT] rediffmail [DOT] com
• shimple0 [AT] yahoo [DOT] com