Download Dipak`s Resume - Trelco Limited Company

Dipak Chandan
[email protected]
91-Current Location: US
Title:
Oracle Certified Sr.DBA with 8 Yrs of Exps
Work Experience:
Skills:
8 years
Sr. DBA, RAC , Architect, Data Modeling, Advance
Replication Server , DataGuard, Oracle 10g/9i , Sol
Current Organization:
Previous Organization(s):
Industry:
FEI Company
IT/ Computers - Software
Highest Degree Held:
Gender:
Date of Birth:
MCA/PGDCA (Computers) ,IGNOU
Male
23rd July 1976
Detailed Resume:
Dipak Chandan
SUMMARY
1. More than 8 years of IT experience as Sr.Oracle DBA /Database Architect
/Data Modeler/ System Administrator on SUN Solaris, HP-UX and NT/2000/XP.
2. Expert in Large Database System Designing, Architecting, Data Modeling
(Physical & Logical) using various tools like ERWIN, Oracle Designer,
Database Architect.
3. Generating high-level data architectural diagram, data flow diagram, ERDiagram for critical business information
4. Excellent Experience in installing, configuring Oracle 10.x/9.x/8.x /
7.x on various platform like Solaris9/8/7/6,HP-UX11i/11,Linux,
NT/2000/XP.
5. Expertise in migrating terabyte databases from 8.x to any 8.1.x to 9.2.x
on different platform like Solaris9/8/7/6, HP-UX11i/11 with effective
diagnosing performance issues
6. Proficient in Planning, Designing , Administrating and Partitioning
Terabyte Databases in a 24x7 environment
7. Experience in Performance Tuning such as tuning of application, SQL
statement, memory (Shared pool, buffer cache, log buffer), CPU, I/O
distribution, rollback segments, redo mechanisms, sorting, swapping &
paging, memory leak, Semaphore & Shared Memory, object scanning, locks
contentions, etc by using self developed utilities (DbStat, DbAudit,
DbDoctor, DbArchiver, DbDemo), shell scripts and collecting statistics
like event, session wise, OS level, trace level (TKPROF, UTL Script,
Statspack), etc from backward engineering.
8. Expertise in RMAN, Standby, Net Backup, Cluster & Replication Server
apart from day to day backup. Also performed several Complete /
Incomplete Recoveries
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9. Space management, Configuration Management and Advance Security
Management of Customer databases on dedicated or multi threaded servers.
10. Trouble shooting and Performance tuning of Customer terabyte Databases.
11. Proficient in writing PL/SQL packages, stored procedures, and triggers.
Experience in writing Unix shell scripting and perl Script writing
12. Knowledge of Oracle Apps Server, Web Server, Business intelligence,
Data Warehousing, Data marts and Data mining
13. Proficient in Operating System Administration with verities volume
management on Solaris9/8/7/6, HP-UX11i/11, NT/2000/XP Server
14. Good working knowledge on MS SQL Server 2000
Currently working on Oracle 10g & 9i databases on RAC (Real Application
Cluster) Server
TECHNICAL SKILLS
Platform:
Hardware
Systems:
Operating Systems:
Netra T-12 / Sun Fire
4800/6800/E2900/E4900/E12K/ E15K/ E20K,
HP/9000 (rp8400, rp7410, rp5470) &
Superdome Series (16-way, 32-way), Sun
Ultra, Sun Storage (A5200, A1000) box Array
& Tape Library, IBM Compatible, Compaq
NT
Server
SUN Solaris9
(32&64bit)/8/7/6,HP-UNIX11i/11,SCOUNIX,
Linux, Win NT/2000/XP
Database Skills:
Relational
Databases:
Oracle10g/9i (32 & 64bit) /8i/ 8/7.x, Sql
Server 2000
Languages/Tools/Technologies:
Tools
Resume of Dipak Chandan
Erwin, Oracle Designer, SQLNavigator,
TOAD,
Spotlight,
ERStudio, Case2, Web DBA, Patrol, OEM,
SQL*Loader,
SQL/PLSql, RMAN, Dveloper2000,
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App Servers
Web Server
GUIs
Programming
Languages
Designer2000, VSS, FTP
Broad Vision
IIS, Iplanet
VB, D2K
PL/SQL, HTML, Java, JSP, XML, C, Pascal,
Perl Script & Shell Script (Korn Shell)
CERTIFICATIONS AND TRAINING
Oracle9i Certified Professional (OCP) DBA
Brain bench Certified Oracle9i DBA
Completed Oracle9i with Real Application Cluster (RAC) Training from Oracle
Corp
PROFESSIONAL EXPERIENCE
1. Sr.Database Administrator, FEI Company, OR
Present
June '02 -
Technical Environment:
Sun Solaris 9/8/7/6, HP-UX11i/11, Oracle 10g/9i/8i/8, MS SQL Server
2000, VC++, Java, Sql Navigator, TOAD, Kew Term, Leaf FTP, Spotlight,
Solstice, OEM, WinNT/2000/XP, Erwin4.0, ER-Studio, VSS, Rational Rose,
Total Commander
FEI Software is a leading major supplier to the semiconductor industries. I
am assigned to three major projects i.e. Yield Manager, Yield Mask, and
LCD.
Responsibilities as Sr. DBA:
Participating in the entire life cycle of large database System Designing,
Architecting, Data Modeling (Physical & Logical), development, testing and
implementation by using various tools like ERWIN, Oracle Designer,
Database Architect, Self developed tool DbAudit, DbStat for Oracle
10g/9i/8i/8.0.x database.
Developing high-level data architecture diagram documenting system, data
flow diagrams, ER-Diagram after implementing the critical business
information.
Installing and configuring of Oracle10g, 9i, 8i, 8.0.x on Solaris 9/8/7,
HP11i/11 and Windows servers with latest patch sets.
Migrating Oracle 8.x to 8.1.x (8i) to 10.x/9.2.0.4/5/6 database in an
environment of 100 to 600 GB db size
Implementing Oracle 10g features like flashback database/query, ASM, ASMM,
AWR, ADDM, Data pumping, high water mark management, auto query tune.
Developing various tools, database builds and Oracle Images for our
overseas customers and in-house Development. Tools like DB Doctor (for
performance), DB Stats (To capture the database as well as OS statistics),
DB Archiver (purging tool), DB Auditor (Auditing tool). Products like Yield
Manager Mask.
Supporting worldwide customers remotely for any database issues.
Traveling to different overseas customer sites and resolving problems on
site and implementing new product.
Writing Shell scripts, Batch Scripts, Sql Scripts for various performances,
product basis requirements.
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Scheduling backup for RMAN, Standby on Veritas Net backup with archive log
management
Configuring and maintaining RAC (Real application Cluster) Servers as well
as replication server on Oracle 9i and 10g
Administrating all Netra, Fire, Sparc as well as HP Servers with Veritas
volume management
Configuring and managing SQL Server databases in Production house
Providing training to developers, managing DBA team with assignments
scheduling. Modeling any new database and estimating the data growth.
Analyzing problems, database oriented issues.
Conducting Seminars, Demos and updating about technologies to the in-house
developers and overseas customers.
Successfully implemented the Product YM5x, YM4x at INFINEON (Villach,
Dresden, Richmond), AMD (Dresden) and INETORA (Taiwan) , which generated
very good revenue to the Company.
Database Administrator, REFCO-SIFY Securities, India
Sep '01 - June '02
Technical Environment:
Sun Solaris 7, Oracle 8i, Broad Vision, Iplanet, Java, JSP, Sql
Navigator, Leaf FTP,
Spotlight, Solstice, OEM, WinNT/2000, Erwin4.0, ER-Studio,
Case2, Visio, Patrol
Refco-Sify Securities offers online and offline equity and derivatives
trading for retail customers as well as execution and clearing services for
financial institutions.
Responsibilities as DBA:
Installing and applying patch sets of Oracle8i on Solaris, Win NT/2000
Configuring Oracle server and Listener Services using TCP/IP and SQL*NET
protocols for networking
Creating database, database objects, users, roles and monitoring user
access
Management of Database Objects, capacity planning, space estimation for the
database and Rollback Segment Management
Performance tuning through Application or SQL tuning, Memory tuning, I/O
tuning, Disk and Latch contention tuning using various monitoring and
diagnostic tools like SQLTRACE, TKPROF, UTLBSTAT and UTLESTAT and also
various V$ Views.
Monitoring Oracle Databases by using different advance tools like
SPOTLIGHT, Web DBA, Q-Software, Sql-tunner, etc.
Defining and Implementing Database backup [ Logical, Online, Offline,
Archive, RMAN, Standby ] and recovery strategies.
Configuring and maintaining Standby Server (for disaster recovery) and RMAN
database.
Maintaining 12 database instances.
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Making ER diagram, Reverse Engineering using tools like ER-Studio,
Erwin4.0, Case2 and Visio.
11. Byzan Technologies, IL
Mar '01 Aug '01
Client: John Deere & Co. IL, Database Administrator
Technical Environment: Sun Solaris 7, Oracle 8.0/8i,
Forms 6.0, Reports 6.0, Shell, SQL*Plus, PL/SQL, Darwin,
Erwin
Worked as an Oracle DBA for centralized DBA team.
DBA Responsibilities:
Maintained and supported Database Servers running Oracle 8 and 8i. Created
and maintained databases, adding users, granting permissions
Allocated resources and estimated storage capacity for database objects.
Created several packages, procedures, triggers, functions, tables, Views
Fine-tuned the Oracle Server to achieve best performance. Performance tuned
sql statement to improve performance
Optimized init.ora, Parameter to best utilize the systems resource.
Monitored the usage of Indexes in the Sql statement. Worked with Data
warehousing team
As Systems Administrator Established the full TCP/IP Ethernet network with
Sun solaris2.6 as backend Insurance Database Server with Oracle8.x engine
Upgrades to network includes maintaining system software users, security,
FS integrity
Proficient in maintaining the performance issues of the network
Setup and administered users and group accounts, Backup and restoring files
SOFSCRIPT Systems & Services Ltd
June '99 - Mar '01
Technical Environment:
HP-UX, WIN 95/NT, Oracle8.i, Forms5.0, Reports 3.0, SQL * plus, PL/SQL,
Designer 2000, Power Designer
Implemented a Hospital Management System software package.
DBA Responsibilities:
Installing and Configuring Oracle 8i on Windows NT server
Data modeling using Power Designer
Designing the database, Creating the tablespace, users, other objects with
security management
Planning and Implementing Backup and Recovery strategies for Oracle
Database
Windows NT Administration including Performance monitoring, Security,
Configuration
Implementing Hospital Management Package
Creating and Maintaining PL/SQL code like Store procedures, functions,
packages, triggers, etc.
Tuning the database, memory, application, redo log, disk I/O, etc.
OM COMPUTERS
May'96May'99
Technical Environment:
SCO UNIX open Server Release3.2,WIN 95, Oracle7.3 , Forms4.5, Reports2.5,
Graphics2.5, SQL * plus
I was working as a DBA / System Executive for different
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clients.
Oracle DBA Responsibilities:
Designing the Database with required schema
Tuning the database, disk I/O, memory, redo log, application query for
better performance
Creating no of scripts for monitoring database performances. Using of
Various type of Backup and Recovery. Training to users about using of
backup and recovery utilities
Configuring the Server and Clients with proper TCP/IP
Creating no of stored procedures, functions, packages, triggers and their
maintenance
EDUCATION
PGDCA (Post Graduate Diploma in Computer Application), India.
Bachelors of Science, India
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