SUMMARY:

• Results driven and well organized technical professional who combines hands - on experience with a solid education in applied physics and engineering
• Able to balance creative thinking with logical design ideas; enjoys opportunities to develop solutions that address challenging environmental problems; works effectively in both self-managed and team-based projects; maintains high ethical and quality standards, professional demeanor and cooperative attitude
• Solid experience of Software Development Life Cycle (SDLC) phases to satisfy both clients’ requirements and cost effective management with limited resources and timeframe
• Providing outstanding results in high-pressure situations
• AWS Certified
• Training
• Project Management
• Software Engineering
• Information System Audit
• Designing and Planning
• Problem solving/Troubleshooting
• Strong communication skills
• Appliance Management

TECHNICAL EXPERTISE:

Programming Languages:

• C#
• C++
• SQL
• Visual Basic
• Java 2 application development
• C-Shell
• Bash
• OS Script
• SQL
• JavaScript
• J2EE
• SAS
• Spring
• HTML
• XML
• CSS
• PHP
• JSON
• Python
• AWS CLI
• Perl

Platforms:

• UNIX
• Linux
• Amazon Web Services(AWS)
• Microsoft Azure
• Mac OS X
• VMWare
• ESXi Server 5.2
• vSphere client 4.1
• Hyper-V
• Windows 2003/2008 Server R2
• Windows SBS 2011
• Windows 7
• 10
• Google Apps
• Remote Desktop service
• Apache 2.4
• WebSphere
• WebLogic
• IBM AIX
• Oracle 10 & 11g
• MySQL
• DynamoDB
• JBoss
• Tomcat
• Jenkins
• TeamSite
• GitLab
• Citrix servers
• CitrixWeb for external access
• Proxy

Software:

• Photoshop
• MobaXterm
• PuTTY
• Enterprise JavaBeans(EJB)
• Eclipse
• SharePoint; AutoCAD; Patricia; MS Office
• MS Access
• Visio
• Project
• MSSQL server 2008
• Reporting Service
• Microsoft Exchange 2003 & 2010
• SharePoint 2010
• Microsoft ISA 2004
• IIS 7.0 & 7.5
• Symantec Endpoint Protection 12.0
• Symantec Mail Security
• Virtual Terminal (RDS)
• DBVisualizer
• WebEx
• RealVNC
• Acronis True Image

Hardware:

• EMC CX4-120
• CX500
• NX4
• EMC NetWorker
• Cisco Router 2600 series
• Cisco Switch 2900 series
• DELL PowerEdge 2950
• DELL PowerEdge SC1425
• IBM Server X series
• Mac Server
• NAS (Network Attached Storage)
• Nortel (BCM50; VoIP)
• Cisco VoIP telephone
• Emulex(Fiber Optic)

PROFESSIONAL EXPERIENCE:

Torrance, CA

UNIX/Linux System Administrator

Responsibilities:

• Involving TCOM and Lexus brand AWS Cloud migration project from OSS to AWS Lift & Shift accounts
• Manage multiple AWS accounts for user management with federated access through Microsoft Azure
• Managed and setup CDN for migrating from Akamai to CloudFront with AWS CLI and bash script with split origins and behaviors
• Setup Elastic Beanstalk for BAT project regarding application configuration management with ELB and Auto Scaling group for creating/removing EC2 instance(s) with on-demand traffic loads
• Manage and on-premises(OSS) and AWS AMI such as Linux distributions such as Red Hat Enterprise Linux, CentOS with building customized environment with CloudFormation
• Manage Route 53 records to config different CNAMEs, Aliases and A records with different domains
• Manage and setup S3 buckets for private and public setup with bucket policy for cross AWS accounts access
• Manage web servers and software load balancers such as Apache HTTPD, HAProxy, etc. such as Alias, ReverseProxy and redirect rules to communicate different applications and servers
• Experience working on application servers such as Tomcat, JBoss etc.
• Experience working on database servers such as RDS, DynamoDB, MySQL, Oracle, PostgreSQL etc.
• Experience working with CloudWatch for detail monitoring of each instance with custom metrics
• Support for Load test with monitoring for both web servers and application servers(Apache, Jboss and Tomcat) traffic with provided use cases and analyze the results with BlazeMeter
• Experience working with scripting languages e.g. Bash, Perl, and Python and ebextension for software deployment with CI/CD like Jenkins
• Excellent problem and troubleshooting skills for complex technical issues with decoupled multiple servers
• Experience in software Release Management, Deployment and Build Management
• Experience with QA and UAT for application testing with validation and troubleshooting
• Experience with WAF for application layer protecting to protect asset from external malicious traffic.
• Implemented AWS multiple accounts federation with Microsoft Azure AD(IdP) using FederatedToken SAML 2.0 for authentication and authorization communicating with internal OpenLDAP
• Good understanding Lamda function with serverless environment
• Experience Apache SOLR for searching and indexing data tool with DB

Fort Lee, NJ

System/Network Administrator

• Managing 35+ servers(server farm) at a datacenter with monitoring and analyzing logs with RealVNC
• Monitor issues of servers with daily basis and follow up the issues with a customized case management with Access DB & Powershell script to check whether critical services are running or not
• Setup test servers on a virtual environment based on Linux OS (ESXi 5.5) to run compatibility check and configuration for running parallel with production environment to meet users' requirements and check issues for server migration
• Support 100+ users on a local and remote locations for resolving technical issues with roles of help desk
• Analyze issues occurring from servers and prioritize issues by resolving issue with timely manner
• Monitor health of networks to ensure security and availability regarding possible threats and vulnerabilities with Powershell scripts to detect any malfunctions
• Plan to backup schedule and review each backup policy with EMC Networker for each server with UNIX
• Review storage management; build and configure SCSI hard disks through EMC storage with on demand
• Plan and decide in purchasing and recommending new hardware and software through market research
• Preserves IT assets by reviewing and modifying disaster recovery and backup procedures and information security and control structures
• Maintains professional and technical knowledge by attending educational workshops; reviewing professional publications; establishing personal networks
• Deliver schedule milestones to ensure project or program objectives being met on time
• Design and modify telephone login trees to implement a company-wide auto-attendant menu
• Citrixweb server implementation with load-balancing feature for external web environment; Customize the main homepage of the web interface with text editing tool such as notepad++
• Maintain Oracle DB with IBM AIX server environment in UNIX environment. Run UNIX commands to safe startup and shutdown through disconnecting and connecting listener processes for Oracle DB
• Successful transition company domain(AAO-USA.com) from Exchange AD server environment to Google App email to forward AD domain users to forward mails externally. (Modify DNS entries and SMG domains)
• Patch and troubleshoot for Apple OS which is Mac Pro machines for designers and check the health of systems with UNIX commands (ex. Keychain issues, Citrix Online environment for ERP system for file sharing between PC and Mac)

McLean, VA

Application Support Engineer

• Responsible for the provision of technical support to customers around the globe; Europe, Asia, and the U.S. as well as the provision of support to customers for their production environments in UNIX(IBM AIX) with the application servers(WebSphere, Weblogic, JBoss) and Oracle DB
• Investigated and diagnosed of problems with core applications(J2EE) based on log files which were WebSphere logs (Server logs) and Norkom logs (Application logs); Server vs. clients with XML configuration file; Using DBVisualizer for retrieving tables(600+) relationship and modifying SQL query
• Took ownership for customer support issues and pushed them to resolution; provided weekly or daily updates with JIRA web interface
• Liaised with customers to inform of progress, request information, manage expectations and close out issues; updated ticket status to provide customers with the most up-to-date information
• Logged, tracked and updated tickets in our issue tracking system with a web interface
• Ensured that procedures were followed so that customer implementations were handed over to Customer Support from Professional Services; searched or reviewed SLA(Service Level Agreement) documents
• A significant contributor to knowledge base/FAQ; posted technical articles on the Intranet with monthly basis with basic HTML template to keep simple and organized
• Maintained and managed customer test environments with Virtual Machines for problem replication with XML configuration files with JBoss, WebSphere environment in UNIX

Vienna, VA

IT Specialist

• Managed 45+ users on Windows SBS 2011 domain and keeping up-to-date the user systems with Active Directory environment
• Built up & migrated data from Windows SBS 2003 to a new Windows SBS 2011 successfully with limited time window with virtual Linux environment (ESXi 3.0)
• Upgraded the speed of network with optimizing server configuration management
• Participated in the decision making process for purchasing new hardware and software with limited resource and gaining the best results of ROI (Return of Investment)
• Designed security aspects of the network topology, access control, identity management and other security systems; established security policies and security requirements
• Backed up and maintained data on the server, workstations and system monitoring for BCP and DRP
• Created and updated company website, and other events websites with HTML, XML, CSS & PHP languages on Apache server for posting contents on demand(ex. Portal site with PHP, PayPal payment)
• Created system reports in regular basis based on system maintenance and analyzed the system logs
• Supported users’ system and server for troubleshooting in daily basis and maintained MS-SQL server
• Performed procedures to prevent/detect/correct the spread of viruses and spam mails
• Added/configured new workstations and peripherals (NAS, Printer, Router, Switch and etc.)

Germantown, MD

IT Support

• Managed 50+ users on Windows2000 Server and kept up-to-date the user system.
• Added or removed users from Active Directory and update group policy file on the server.
• User support and troubleshooting through local & remote Access.
• Updated internal website contents with HTML based and maintain CAD library on the server for the company standard.

Confidential

CADD Technician

• Performed stormwater management design and engineering by using AutoCAD 2005.
• Calculated soil amount by using Land Development Desktop 3D based on the designed contours in helping prepare estimates for how much projects would be to cost, or for maintenance manuals
• Assigned a separate area of a project under the supervision of a design engineer
• Developed a design, worked from a computer model of the item or changed detailed diagrams so it can be produced with standardized format