Java Developer Resume Austin, TX - Hire IT People

SUMMARY

Diverse experience in Information Technology with emphasis on Performance and Capacity management, Problem Determination and Problem Source Identification, Unix Administration, Infrastructure engineering, Network trace capture and analysis, Confidential Admin and Confidential Level 2 support center, AIX, Solaris, Linux, VMware, Windows, OS/2.
Software Releases and change and Quality Assurances.
I work independently, as well as in a team. I can mentor and train new employees.

TECHNICAL SKILLS

Programming Languages: JAVA, python• Web Technologies JavaScript, JQuery, HTML5, CSS3, AJAX, JQUERY, angularJs

Databases: Oracle, Sybase, DB/2, SQL

Frameworks/Web servers: Tomcat, WebLogic, Apache, IIS.

Version Control and Operating Systems: GIT, AIX, LINUX, SUN SOLARIS, VMWare, Windows. I Series.

Linux: Redhat, Top, Nagios, Grafana.

PROFESSIONAL EXPERIENCE

Confidential

Java Developer

Responsibilities:

Java Developer at Confidential compiles Java code on desktop and it takes 2 minutes.
Some 2000 jar files. That same Java code compile by same developer, on his VDI (windows) C drive takes 4 minutes at server located at USA .
The same Java code compiled, on A drive takes 8 minutes and H drive takes 12 minutes or more.
Everything is local at USA. VDI, C drive, A drive, H drive.
Developer wants to get VDI C drive compile time as close to Java Developer’s local desktop C drive compile time.
As this Java developers compile this code many times a day.
Collected network trace for each scenario and analysed the network trace to figure out first where most time is spend.
Checked if network connection is clean (no retransmission, or no TCP connection resets).
Windows is running on Red Hat Linux server.
Collected Windows Perfmon data and did analysis of perfmon data.
C drive had 20 MB or less data movement VS A drive had 80 MB or less data movement.
H drive had 80+ MB data movement. Also tested with Virus scan software disabled to see if Virus can software was bottleneck or not.
Was able to get C drive compile close to 3.5 minutes.
There are two different software has to do a file scan when file is opened to check that file is not doing anything malicious on the network.
Performance Tuning: Solaris, AIX, Red Hat Linux, Windows, VMware, SAN, Oracle on Linux, ETL. Oracle, Sybase, DB/2.
TCP IO Tuning: Solaris, AIX, Linux, Windows, VMware.
Confidential I Series/AS400 - System Admin and I Series/AS400 Level 2 support Analysts.
Riverbed Transactional analyzer - Formerly Opnet - Capture Network trace, Analyze network trace.
Used Wireshark to debug network problem.
Review Oracle AWR Report and Sybase Performance report to figure out where is the bottleneck.
Backend Batch job that use to take 48 hours to complete reduce the time by 60% the job now finish in 20 hours.
Ability to diagnose Virtual Desktop Interface Problem.
Ability to diagnose Java applications problems.
TCP, UDP, DNS, DHCP, HTTP, SSH, TFTP, LPD and LDAP
Robust troubleshooting and analytical skills
Application and Maintenance Support.

Confidential

System Administrator

Responsibilities:

Confidential P Series/AIX Level 2 AIX support Analyst.
Problem Determination, Problem Source Identification, answered how to question.
All AIX and P Series hardware related support.
Diagnose hardware and software problem and how to fix them. Searched known problem database to see if there is match for problem at hand and how it was fixed via workaround, or APAR or Fix.
For hardware problem - Opened PMH and move the PMR to hardware support.
Performance support, Command support, TCP support and all component of AIX.
Offshift support - covers all area of P Series hardware and AIX software support.
Worked on P1, P2 and P3 problem management records.
Tune the servers to process more data in same time with the same hardware.
Install, configure AIX Operating system.
Install and Configure Confidential P Series, I Series, and Windows servers at Confidential Data center.
Did network wiring of the new server lab including Ethernet Switch and Router.

Confidential

System Administrator

Responsibilities:

Confidential OS/2 Level 2 Support Analyst.

Confidential

System Administrator and Level 2 Support Analysts

Responsibilities:

Worked on System/36, AS/400 and I series.
Worked on AS/400 48 bit CICS architecture to AS/400 and P series 64 bit RISC architecture transformation.
Installed Pre GA/ Prerelease Operating system on Test servers for Developer to test, the code and functionality.
Tested power failure and recovery of the system.
Worked on various tape drives, tape library and optical disk library.
Rearrange servers in Confidential Data center.
Worked on replacing 400 MB hard drive with 1 GIG 3.5 inch drives.
Assemble the system from components parts.
Did power management of the Confidential I Series Server Racks.
Worked at Confidential I Series Level 2 support center as Level 2 support analysts.

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Java Developer Resume

Austin, TX

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