SUMMARY:

Skilled DevOps SRE with proven expertise in deployment, orchestration, virtualization, and automation for Carrier grade Data Center and Cloud based Virtualized environments. Extensive Hands - on experience in OpenStack, Red Hat deployment, Operation Management, Infrastructure Configuration, VNFs and Cloud Management. Experience on Cisco, HP, and Confidential gears - APIC-EM, UCS-C240, Nexus 9236/ 93180, 9959 NPO, 5620 SAM.

TECHNICAL SKILLS:

Cloud Computing: OpenStack - Keystone, Neutron, Nova, OpenStack Platform Director, AWS - EC2, ELB, S3

Development: Python, Ansible, Java, bash, ruby, Confidential C, Paramiko, Netmiko, Request, Django, git, Flask, JSON, Jinja2

Orchestration: UCSD, Virtual Network Function Orchestrator, Network Service Orchestrator, REST APIs, RESTCONF

Virtualization:: Network Virtual Function, Hypervisors, VSphere, ODL, MANO, SR-IOV, vEPC, KVM, ESXi

Networking:: Nexus 7000/9236C/93180, OpenFlow, SDN controller, 7750 Service Routers 7200/7600, Catalyst 65/3850

Operating Systems: Red Hat RHEL 5/6.5/7, CentOS, Ubuntu, Solaris 8/9/10, Windows R12, Mac OS X

Network Management:: NSO, Cisco DNA Center, 5620 SAM, NetAct, Yang, SNMP, NetConf, APIC-EM

Hardware: UCS-C240/B, HP Blade servers, HP DL580/380 Gen 8, Sun Server, HP 3PAR/P2000 Storage, Flex Module, SUN Misc: MongoDB, Oracle, MySQL, Splunk, Hadoop, ElasticSearch, SDN, Docker, Kubernetes, log management and analysis

PROFESSIONAL EXPERIENCE:

Confidential, Reston, VA

Cloud DevOps Engineer

Responsibilities:

• Worked on Cisco Packet Core Ultra-M Confidential 5.1.7 solution to plan and deploy RHEL, OpenStack, Elastic Service controllers, VNF, for various production nodes and documented various issues and best practices
• Implemented Infrastructure configuration of Catalyst, Nexus switches and mobility nodes SGW, PGW PCF
• Setup remote sites including Red Hat installation via CIMC and OpenStack Platform Director installation, Introspection, and Overcloud/undercloud deployment for various Confidential -Mobile Production sites.
• Investigated various hardware and network issues - FlexFlash, DIMM, Disk allocation, cable connection during platform setup of pre-production sites and collaborated with field team to resolve the issues in timely manner
• Automated configuration, device provisioning, device reporting and compliance Nexus, Catalyst and Cisco-XR devices in python and paramiko/netmiko libraries
• Orchestrated data center user management by developing Ansible playbooks to create new users on OSPD and assigned various role, permission and access.
• Implemented Plug and Play feature to onboard new devices in Flat, Trunked and Ether-Channel Access resulted accelerated time to market.
• Examined 3gpp specifications on Charging and Control Function and developed HLD, PIF and ATP documents
• Created L3VPN services in NSO using Yang Models based on ietf-interfaces and ietf-software-platform
• Worked on Cisco Premium Services Catalog, Cisco Process Orchestrator, UCS, Nexus, MDS and APIC-EM.
• Designed Audit filters to intercept request and log the headers and session information
• Created task, policies, service requests, activities and infrastructure automation workflows on manage life cycle of Virtual Machines, Services, Applications using UCSD
• Automated OpenStack Tempest and rally for api, cli, sanity, scenario, benchmarking and integration testing to verify OpenStack cloud works with the OpenStack API.
• Worked in Agile Scrum Dev. environment and actively involved in creating User Stories and Tasks in Rally.
• Automated OpenStack Tempest and rally for API, cli, sanity, scenario, benchmarking and integration testing to verify OpenStack cloud works with the OpenStack API.
• Examined Network Management Architecture roadmap for various customers to identify FCAPS issues.
• Worked on Public clouds security implementation with security appliance for Azure, AWS

Technical Tools: RHEL 7.3, Ubuntu 14/16, Ansible, IOS, NX-OS, IOS-XR, UCS-C-240, NSO, Docker, Drone, Kubernetes, RESTConf, OpenStack, AWS, git, Python, ELB/ALB, RDS, ECS, Lambda, API Gateway, Cloudwatch, SELinux, LXC

Confidential, Reston, VA

Lead DevOps/SRE Engineer

Responsibilities:

• Consulted directly with the customer and production teams, and internally to Confidential to deliver Confidential /4G products and services for Sprint Network Modernization project.
• Developed test framework for NMS application build automation using Capybara, Cucumber, Selenium
• Integrated the automated tests on Continuous integration server, Tomcat and scheduled builds on Jenkins
• Designed and deployed 5620 SAM as a service assurance product in Network readiness labs to upgrade Core and RAN devices and shared the potential issues and best practices with production team
• Administrated and managed various releases of 5620 SAM in distributed and Standalone mode, including Server application, Oracle Database, Auxiliary Servers for Performance and Call Trace data
• Authored design documents to implement network configuration, provisioning policies, ACL, Firewall rules, IP static route, and integration of various north-south-bound and east-west bound interfaces to reduce the production deployment time
• Created and reviewed customer specific documentation for process automation, change requests, Pre and Post checks, RCA, deployment MOPs and administrative procedures for 5620 SAM systems, 9959 Network Performance Optimization and 9958 Certificate Management Server, HP blade server, RHEL, Sun Solaris
• Migrated Sun Platform to HP hardware, configured HP 3PAR disk Array, C7000 Chassis and automated RHEL 6.5 deployments on HP-DL380 platforms as a proof of concept in NRT lab
• Designed OSS scripts to use SAMO module which provides an XML interface to 5620 SAM, configured and retrieved network management information, inventory utilized to develop third party applications
• Designed and implemented very first provisioning of 9764 Metro Cell Outdoor/Indoor deployment in Sprint Network to auto-discover, manage and upgrade the software of small cell.
• Installed, configured and integrated Certificate Management server, Security Gateway, Vital QIP, SAR, EMS server to implement Metro Cell Plug and Play feature. Also Integrated 5620 SAM and 9981 CMS server and 9959 NPO East-West interfaces to generate PKI certificate
• Developed python scripts to call RESTful APIs and execute CRUD operations on base stations, created new work orders and updated online/offline configuration parameters to implement ANR, IPSEC, Plug-and-play, SON, MRO using customer specific template and golden parameters
• Worked on hpacucli utility to add, delete, and repair logical and physical disks on the Smart array controller

Technical Tools: Python, Oracle 11, Solaris 10, RHEL 7/6/5, 9959 NPO, Git, Gerrit, Jenkins, Apache, 5620 SAM, HP C7000, HP OBA, HP ILO3/4, Ubuntu 12/14 LTS, OpenStack, Ansible, Docker, P2000/3PAR Storage Array

Confidential, Reston, VA

Senior Technical Analyst

Responsibilities:

• Developed SIP servlets, messaging application and communication plug-ins
• Designed and implemented SIP based proxy, Servlet, Registrar, Confidential after reviewing JSR-116, JSR-289. JSR-209
• Developed SIP Servlets using profile service API to query, modify subscriber profile data, and manage subscriptions for receiving notifications about changed profile data
• Resolved customer issues regarding SMS, MMS, SS7, Billing, SIP, TCAP, ISUP, INAP, CAP, performance using Parlay, Oracle Diagnostic Methodology, SOAPUI, Seagull, SIPp
• Analyzed thread dumps, heap dumps, flight recording, logs, STDOUT, and resolved out-of - memory errors and worked with design teams to resolve these issues
• Developed scripts, mbeans, Diagnostic framework, instrumentation to clarify SIP compliance, JMS

Technical Tools: WebLogic 8.15, 9.1,10.3 & 11, WLSS, OCCAS, OCSB, Oracle 10g, RHEL 5, Solaris 10, CentOS, Eclipse IDE, JSR, SOA Facades, wireshark, JRockit Mission Controller, JRA, SIPp, and Memory Tool Analyzer

Confidential, Reston, VA

Software Engineer

Responsibilities:

• Developed Performance Management tools, network & configuration management application for monitoring various key performance indicators and their threshold values.
• Designed xml schema for key performance indicators using hierarchical service data for accessibility, retainability, and traffic data and implemented regular expression type constraint.
• Designed search application for searching RNC, Market, Geography and KPIs by developing User interface, Request Manager Servlet, Indexing feature.

Confidential, Plano, TX

Software Engineer

Responsibilities:

• Worked on FlashCast server billing application, feed server, Data source, billing server, Network Management System and Front end based on J2EE architecture.
• Developed business logic functions for Provisioning, Alarm, monitoring, and performance data collections using session, entity and messaging beans.
• Worked with remote connections, file transfer, tunneling, ssh, archives, basic process, job Control, File Permission in Solaris 9. Planned automation and unit test framework using Junit

Confidential, Hillsboro, OR

Contract Software Engineer

Responsibilities:

• Programmed Mac software validation for base station and subscriber station based upon broadband wireless access WiMax 802.16 specification using Confidential C.
• Managed development environment SCM, libc, Perl, perforce, ANVL, FC 2/4, Perl, DejaGnu test framework

Confidential, RTP, NC

Development Engineer

Responsibilities:

• Developed internet mail billing features for Content Services Gateway billing Protocol Description
• Worked with router operating system - IOS, startup-config, running-config, image upgrade via tftp server
• Managed and configured test bed- Catalyst Switch 6K, 7200VXR, CSG, CMX, Sun Solaris 8/9 2.8

Confidential, Redmond, WA

Software Integration Engineer

Responsibilities:

• Programmed web-based Basic Auth login, Web-based form login, and the Java client Basic Auth login
• Developed performance scripts to verify and validate the messaging Gateway, verified the wireless gateway system performance requirements, identified performance issues and performance degradation

Confidential, Walnut Creek, CA

Systems Development

Responsibilities:

• Developed acceptance test procedure for email Confidential relay server based upon Confidential AUTH and SASL
• Tested pocket outlook object model interface for pim application running on smart phone i600 device

Confidential, Redwood City, CA

Senior Software Consultant

Responsibilities:

• Designed and Coded the interface between Business logic server, MQ series and SMSC Sprint PCS Preferred Roaming list project for data manipulation, parsing, scheduling, and updating
• Advised British Telecom in Billing, Provisioning, and Application programming interface issues

Confidential

Software Design Engineer

Responsibilities:

• Designed functional specification for Super Node billing application - File Transfer and Access Management Application and worked on requirements, architecture, and development process for MTX for Confidential IS-95 n
• Worked on HP-UX11.0, AIX6.5, SDM, SBA, Clear Case, Sniff, Gateways, Routers, switches, TEAM.