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About Nil

Name:  Nil
(see 1 ratings)
  in Nizhny Novgorod, RU
Russian Federation

Seller / Coder Rating:  9 (Superb)
Sign up date:  Dec 15, 2002 7:48:35 AM EDT
Last Logged In:  Jun 26, 2003 6:17:28 AM EDT
Jobs Started:  4
Jobs Completed:  3
Missed Status Report
Warnings Issued:
Arbitrations Lost:  (out of 0 Arbitrations)
What is arbitration?

  Post a new project exclusively for Nil
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Areas Of Expertise: 
UNIX, Linux, CISCO, C/C++, Java, PalmOS.

Summary of Qualification
* Over 5 years experience in UNIX programming and system administration
* Design and development of high performance and/or special purpose network-oriented software for
IP-based networks
* TCP/IP-based LAN deployment and support
* Network security: firewalls, cryptographic applications
* Web-related programming: databases presentations, modular statistics systems, other information
* SQL database programming and administration
* Billing systems software developing

Hardware platforms and operating systems
* Intel x86 under Linux (RedHat), FreeBSD, UnixSCO, UnixWare
* Cisco Systems routers and access servers
* Handheld: PalmOS
Protocols and technologies
Strong hands-on knowledge of extensive set of the TCP/IP based technologies and network protocols
* Transport: 802.3, 802.11, IPv4, Frame Relay, SLIP, PPP
* Protocols: UDP, TCP, ICMP, ARP, IGMP
* Routing: RIP 1/2, OSPF v2, BGP 4
* Mail, News, Directory: SMTP, POP3/IMAP4, LDAP/X.500, NNTP
* Application level protocols: TELNET, [T]FTP, HTTP/HTTPS, DNS, NFS, SNMP
* Web-related: HTML, XML/XSLT, PHP, CSS, JavaScript, CGI, FastCGI, JavaServlets
Knowledge of AAA and security applications
* IPSec (Cisco Systems and FreeSWAN implementations), CIPE, PPTP
Programming languages, development systems and tools
* UNIX programming: GNU C/C++, Perl, shell programming; CVS, flex/bison, make,
automake/autoconf, gdb, GNU tools; deep understanding of memory management, exceptions, threads,
experience with STL; strong knowledge of UNIX libraries, system calls, IPC, PThread, SunRPC,
etc; Linux kernel mode programming.
Academic experience
* Java, AWT, SWING, JavaServlets, JavaApplets
* Win32 programming: MinGW/Cygwin environment
* Handheld: PalmOS SDK 4.0, GNU C, PRC-Tools, Code Werrior
Deep knowledge of other software applications
* Database: Oracle 8, InterBase, MSSQL, PostgreSQL, MySQL
* UNIX: Sendmail, INN, Bind, Apache, Squid, Gated/Zebra, Net-SNMP, OpenSSL, OpenLDAP, Samba,

Native Russian, excellent written and spoken English.

Brainbench certified (ID 34073)
* Master Linux Administration (General) (07/01)
* Master C (07/01)
* HTML 3.2 (08/02)
* Computer Technical Support (08/02)
* Internet Security Specialist (TechMetrics 1999)

Available upon request
Professional Experience

Personal Communications Systems, Ltd. Nizhny Novgorod, Russia
Softel-Inform, Ltd. Moscow, Russia
Sr. System Administrator (09/99 to present)
Technical organization of an Internet service provider from the start, rendering Internet
services via wireless technology, dialup connection to the network, voice over IP service.
Designed and developed an integrated system of interconnected software components to support the
set of ISP services. Network management, servers administration, development of new technologies,
system administration group management, consulting the local staff on technical and
administrative questions.
* Network management: LIR maintaining, address space allocation, registration in the RIPE, RIPN
and regional databases; administration of servers (Mail servers, DNS, virtual Web servers,
subscribers' PostgreSQL and MySQL databases and etc.), modem pools, Internet-classes; solution of
contingency (at present more than 130 Linux routers in Nizhny Novgorod and more than 450 in
* Designed network operation center: online network monitoring, signal/noise ratio and traffic
intensity on wireless lines; Web, Proxy, Mail, Dialup usage statistics, Internet-classes
statistics and etc. (C/C++, PHP, Perl and UNIX shell scripts, MSSQL and MySQL database servers.
* Developed a Linux router project for ISP based on RedHat Linux plus a software package
containing programs and scripts which implement authentication, authorization, accounting,
filtering, management, and etc. Implemented communication interface with the existing billing
system Bill Online (C/C++ programming, Perl and UNIX shell scripts, MSSQL database server)
* Wrote a Net-SNMP module which provides subscriber management. (C programming)
* Designed and implemented project wireless distribution system with a use of Host AP project,
802.1d Ethernet bridging, CIPE tunneling. (C programming, UNIX shell scripts)
* Patched Linux wireless IEEE 802.11b network cards kernel drivers (Lucent and Prism-based) to
provide information about internal registers of the cards and estimated low-level statistics.
Worked on the GNU project of the software Access Point IEEE 802.11 based on the Intersil
Prism2/2.5/3 chipset (Host AP), wrote some subroutines and bugs fixed. (C programming)
* Patched the PPP daemon: implemented a server side callback function; user authentication, IP
address allocation, time and traffic control from the billing system. Build PPTP + Radius + SQL
authentication/authorization/accounting. (C programming, Cistron Radius server, MSSQL database
* Developed scripts for an Internet-class: access card authentication, time used and IP traffic
accounting, workstations online status check. (Perl scripts, MSSQL database server)

Nizhegorodsky Regional Information Center Inforis, State Unitary Enterprise. Nizhny Novgorod,
Programmer (02/98 - 04/99)
* Worked in a team on the project of the statistics server for the Internet service provider:
designed the SQL database structure; wrote a set of programs and scripts for the log-files
parsing of different services, monitoring server state, routers and network channels with the Web
interface to access statistics for subscribers and internal use. (C programming, Perl scripts,
Oracle SQL database server)
* System administrator on duty: performance of typical operations of administration, tracking
Internet provider^рs server state (UnixSCO, UnixWare, FreeBSD, Linux), backup operations,
qualified answers to subscribers' questions.

(1999) The Harris 2020 Automatic Telephone Exchange Billing System (subscribers calls estimation)
The project was implemented on C with a use of InterBase, based on Linux.
* The program for data flow reception from an automatic telephone exchange, data analysis,
insertion of records to the database.
* The Web interface for the operator: subscriber management, manual input and editing, generation
of reports, different kinds of search.
* The Web interface for the system administrator.

Top Coder Competition Raw Score
Average Job Size
Average Coder Rating
Number of Completed Jobs
Penalty for Missed Status Reports Warnings *
(0 warnings x 1000 penalty) = 0
  Raw Score Total: 450

* Penalty rule enacted on 10/8/2001 and applies only to warnings sent after that date.
Note: all top coder competition stats are only updated once a day between midnight and 1:00 EDT.
Rent A Coder Work History
All ratings and comments are the opinion of the poster and do not reflect the official view of Rent A Coder.

Rated For Rated By Rating Bid Amount Rated On
  Bonus for Nil on 5/25/2003 10:04:19 PM QUIET None Given $10.00 May 25, 2003 10:05:46 PM EDT
  Bonus for Nil on 5/21/2003 4:53:26 AM QUIET None Given $10.00 May 21, 2003 9:39:01 AM EDT
  Linux Server Setup QUIET 9
$30.00 May 8, 2003 8:01:15 PM EDT
  Very well done and efficient.
Average:   9.00
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