PROFESSIONAL EXPERIENCE:

Confidential

Sr. System Engineer

Responsibilities:

• Architecture and design of highly scalable, available, and elastic solutions that implement industry best practices using AWS GovCloud services.
• Design and Migrate to AWS with best practices.
• Design and implement PROD and Disaster Recovery by VPC Peering.
• Work on agile projects. Build and maintain AWS and Cloud system deployment templates to significantly improve critical server and application deployment times and improve systems availability.
• Create and review specifications and architectural diagrams
• Provisioning of systems, securing of VPC, implementation of Security Groups, Identity and Access Management, Backups, Restore, system health monitoring and optimizing performance using CloudWatch, Splunk, APM Appdynamics for Applications monitor.
• Compliance and security standards including FedRAMP, DoD SRG with SCAP tools.
• Evaluate, hands - on troubleshoot.

Technologies involved: AMIs, Route53, VPC, Subneting, EC2, Security Groups, S3, IAM policies. AWS CLI, EBS, ELB, monitoring,Cloud Watch, Cloudtrail, Splunk and AppD, Tomcat, infrastructure-as-code tools like AWS CloudFormation or Terraform, docker, Linux Administration, LVM, Agile, Ansible, CI/CD pipelines Jenkins, SCAP.

Confidential

Sr. System Architect

Responsibilities:

• Develop solutions to a variety of problems of large scope and complexity.
• Establishes IT standards, policies, technical strategy, and practices.
• Oversees completion of assigned projects and goals.
• Responsible for managing/directing the project start to finish, include participation in overall project management.
• Coordinate with departmental or cross-functional teams.
• Manage FEMA Staging, PROD environment, and datacenters, DC2, DC1 and Mount Weather datacenter. Design, develop and execute deployment for a project from beginning to go live in production.
• Migrate applications to Openstack, Openshift, Hybrid Cloud using cloud design patterns and best practices.
• Provides complex network support for LAN/WAN, Cloud, wired and wireless infrastructure, including all network applications.
• Perform operating system upgrades and created standard operating procedures for storage management, network operation, and domain administration.
• Provided Cloud Administration and implementation, DevOps, SAN management, Virtualization and technical support, project management, active directory administration,
• Provide costs for projects, datacenter equipment, software licences, etc.
• Develop and facilitate Security Plan.
• Design server virtualization, clustering, database, disaster recovery, and geographic redundancy.

Technologies involved: Oracle Weblogic, SOA, OSB. ODM, Websphere, JBOSS, SAN, VMware, HP7000, Network, Security, Windows, UNIX/Linux, Amazon Cloud.

Confidential

Exalogic SME

Responsibilities:

• Provide production support for applications on Oracle engineered system Exalogic in multiple datacenters.

Technogies involved: Exalogic, OTD (Oracle Traffic Director), Weblogic, CloudCloud 12c, OPSCENTER, ZFS Appliances.

Confidential

SME Exalogic

Responsibilities:

• SME of Oracle engineered system Exalogic, Oracle Cloud technologies, Engineering and Operation, patching. Monitoring.
• Migrate applications to Oracle Fusion Middleware SOA, Weblogic, OTD, Oracle Portal, Forms and BI Discoverer, Oracle E-Business Suite (EBS) on Exalogic.
• Deploy Cloud Control 12c, migrate from OEM 11g Grid to 12c. Monitor all applications, Exalogic appliances.
• Migragte Remedy to ServiceNow.

Confidential, Springfield, VA

Architect/System Engineer

Responsibilities:

• Responsible for planning, engineering, supporting and implementing the migration of an existing infrastructure to a standardized virtualized environment. This includes Linux and Windows systems, network devices and storage systems in terms of proper functioning, upgrading, troubleshooting, configuration monitoring, and security settings.
• Data Center Migration. Design and build out Infrastructure in a new data centers. Lead data center migration projects. Work in complex environments, dealing with data center providers, IT vendors, client PMO, PMs etc to deploy to new data centers. Agile methodology was deployed and used as main tool.
• Provide engineering and infrastructure design for Oracle engineered system Exalogic Elastic Cloud and Exadata, OVM on Exalogic, ZFS Storage, OPS CENTER, Weblogic 12c, Coherence.
• Migrate the current envirnments to Exadata/Exalogic Platform, the cloud solution.

Confidential, Reston, VA

Application Infrastructure Engineer Lead/Solution Architect

Responsibilities:

• Responsible for managing team of Application infrastructure engineers who design, estimate, size infrastructure solutions for Application projects, in the process of Virtualization, migration non-prod environments and DR to the Cloud.
• Implement the projects follow SDLC, Scrum.
• Assess projects cost, from engineering, deployment, infrastructure and environments, hardware and software, etc.
• Provide recommendations in overall IT direction, cost reduction by VMware, SOA, datacenter reduction, going to Cloud etc.
• Coordination with Client Services for the development of valid business cases.
• Coordination with Delivery Services for the design, build and production readiness of application solutions.
• Coordination with Technical Services service lines to ensure implementation of best practices for infrastructure governance, architecture, engineering production support and service Management.

Confidential, Herndon, VA

Project Technical Lead

Responsibilities:

• Assess the project requirement and scope. Implement the projects by SDLC. Meet the deadline.
• Translate project SOW (statement of work) into technical requirement, break it down to servers, network, SAN and storage, backup, security, etc.
• Lead engineers to develop infrastructure design, rack elevation, VLANs, cable patching and network diagram, firewall, etc. Provide technical guidance and assign task. Perform peer reviews.
• Document projects design.
• Track on-going projects status, develop reporting template. Provide briefings to different level of management.
• Identify issues and risks. Work with Architects to come out of solution.
• Coordinate with many parties in the project: internal and external PMs, venders, Engineering team, Data Center Hardware team, Data Center facility team, Security team, Change Management Board/RFC, Asset Management team and Configuration Management, etc. Follow through project life cycle, turn it over to production.

Confidential, Rosslyn, VA

Senior System Administrator

Responsibilities:

• Provide 24/7 production support for complex applications, inter-connected and used by Confidential twenty two component, law enforcement in the whole country and by other government agencies around in the world. Troubleshoot complex issues among multiple vendors, multiple development teams from multiple developing companies, multiple data centers.
• Deploy new releases of US-VISIT IDENT. Identified impacted components by the new release. Coordinated, planned each release with many shared holders, the servers team, DBA team, monitor team, customers, project release team, develop teams, deployment etc. Validated release documentation.
• Manage production, training, pit, pat environment. Plane design, and recommend platforms for building, installing, configuring, and maintaining all servers in support of all development. Deploy and test new releases.
• Identify the technical and software requirements of biographic and biometric information technology between organizations. Feed back to US-VISIT architect team for future release.
• Utilize Remedy incident management, problem management, knowledge management to improve customer support.

Technologies involve: Oracle Application Server, Oracle Advanced Queuing(AQ), Weblogic, TIBCO, Java, Business Objects Crystal Report Server, IBM MQ, SQL, Cogent Matcher, F5 Big IP, Linux and Windows, VMware, Foglight monitoring, Remedy, Fingerprint matching, image processing, SharePoint, VBScript, etc.

Confidential

Infrastructure Engineer

Responsibilities:

• Web Server Infrastructure Engineer work in Confidential computer centers. Set global standards for Confidential Web Farm Servers in three data centers Enterprise Architecture, which includes security standard, kernel parameters, file system, configuration.
• Security. Secure web servers, including server operating system and applications, according to FISMA security standard, plus government Sophisticated Security Stand. Create golden server images to meet these standards by using JASS (Jumpstart and Sun Security Toolkit) and my scripts to harden the servers’ images. Fix and certify application security scan. Technologies deployed are SUN BSM, RealSecure, TripWire, Etrust, SSH, plus our scripts. Conduct Security Scan, remedy security findings. Evaluate Security vulnerability and Remediation products.
• Automate server building process with Sun Jumpstart, WAN boot technologies, multiple images for many Sun platforms and many environments.
• Provide solution for servers’ Patch management, backup, upgrade, monitoring, by using tools such as Sun UCE, Tivoli, etc.
• Project management. Play an infrastructure engineer role in the projects. Provide advices to the project at any stage. Carry on the project cycle from the beginning to the end. Provide architecture and infrastructure design for projects, including DR, involve in capacity planning, propose equipment list, procurement. Build the equipment in dev, test and production environment in the data centers, both hardware and software.
• Provide 3rd level support for any OS related issues.
• Technologies involved, Solaris 9, Solaris 10, Sun 25K, T5200/2000, V490, N1 Grid Service Provisioning System, Jumpstart, JASS (Sun Security Toolkit), Veritas Storage Foundation (Cluster, RAC), Oracle Application Server, Websphere, Webmethods, MQ Series, NetApp.

Confidential, Rockville, Maryland

Sr. Engineer/Architect

Responsibilities:

• Consolidate the corporate Data Centers, re-design the infrastructure of the current applications.
• Research and evaluate new technologies, including CMDB, MOM, J2EE products, etc. Work with vendors and the customers to test the products in the lab. Select and approve the technologies for the company.
• Integrate, implement and document all applications in the projects. Provide support to production support team.
• Manage projects, scheduling, planning and allocating resources, coordination and implementation.

Technologies involved: Websphere, iPlanet, Apache, Tomcat, Webmethods, Jrun, Coldfusion, eRights, netcool, Linux, F5 BigIP load balancer, LSF computing farms.

Confidential, Washington, DC

Internet Infrastructure Engineer

Responsibilities:

• Manage company’s critical E Business websites infrastructure.
• Design and build out new application infrastructure, load balance internet traffic between two data centers.
• Manage company external DNS.
• Troubleshoot complex internet problem.
• Technologies involved with Resonate Global load balancer, Radware local load balancer WSD and fireproof.
• Manage over 200 iPlanet Web Servers, over 500 web instances, over 60 Weblogic Servers, over 300 Weblogic instances, Netscape proxy servers, IIS web server, etc.
• Implement Internet Security using HAD, Siteminder plugins, SSL certificate.
• Migrate applications, install and upgrade software.
• Implement internal project, skill such as html, jsp, cgi, javascripting etc.
• Monitor all the elements and instances using Perl script, k or c shell script.

Confidential, Redwood City, California

Sr. System Administrator

Responsibilities:

• Manage the company's web service data center, over 30 Sun servers E450, T1 installation with D1000 disk array, Solaris 2.8, configuration, maintenance.
• Utilize Jumpstart to build Sun servers over the network. Provide 24x7 production support. Write Perl, K shell, C, Bash shell scripts to monitor servers, automatically update on going new software.
• Troubleshoot problems. Provide solutions to the performance.
• Provide security solution to the company by utilizing CISCO firewall, CheckPoint, SSL, Radius servers, Cryptocard, SSH, PAM. Software runs on Apache servers, iPlanet, Jrun, DNS.
• Manage and support development and QA environment.
• Provide internal IT support, sendmail server, VPN, NFS, Windows NT/2000, SQL Server, TCP/IP network.

Confidential, Kansas City

Sr. System Administrator

Responsibilities:

• Work as a system administrator in Confidential Integrated On-Demand Network(ION) 1 million dollars testing lab. Setup, integrate, configure testing, production, development environment. Provide 24x7 support to hundreds of testers, developers at different locations in the country.
• Manage complex projects involved by the project planners, schedulers, developers, DBAs, network team, hardware vendors, testers, consultants, and the product marketing team and production support team. Lead the projects at all stages, roll out to production.
• Manage over 250 servers, ATM backbone, Clustered HP9000/800(V,K,D,L class) with MC/Service Guard, fiber connections(FDDI) to SAN EMC managed by LVM. Clustered SUN E6500, 4500, 3500, 350, 250 Solaris 2.6 servers with Sun Cluster, StorEdge Disk Array(1000, 2000, 3000), managed by SUN Raid Manager, Veritas Volume Manager. Clustered NT Dell PowerEdge 6100 with D100 shared array . Utilize Confidential Ignite-UX to build Confidential -UX Server farm. Use IBM ADSM tape library as backup system. Beside ION software, also manage all software Oracle, Netscape Web Servers, iPlanet, IIS servers, Oracle 8.5, Weblogic, coordinate CheckPoint firewall configuration and troubleshoot, network and all other issues.
• Planning Tivoli. Received Tivoli FrameWork 3.6, User Administration, Distributed Monitoring Training.