日本と海外をつなぐクラウドソーシング

Tech Mahindra

Sr. Integration Engineer

2016/05～

Integrate various components received from development team into mVAS platform (consists of VMWare, Openstack and Netapp storage) and then into SMSC, MMSC and Voice Gateway. Deploy and test the new release in lab and also provide tier-4 support for deployment.
● Openstack Migration: Infrastructure migration from VMware to Openstack. Whole infrastructure provision was done automatically using ansible. Hundreds of HP servers were provisioned within hours.
● deutsche telekom: New version 5.3.1.0 is released for deutsche telekom on VMware 5.5 and Netapp c-mode 8.2. Installation is fully automated using Python scripts. Excel parsing is extensively used to make deployment easier and faster.
● deutsche telekom: Upgrade is released for deutsche telekom on VMware 5.5 and Netapp c-mode 8.2.
● Verizon: One of the product ECS is made Dual stack using Ansible and Python with end to end responsibility.
● VMWare’s vMotion, HA and DRS is integrated to existing platform to minimize the outages during maintenance.

Ericsson India

Integration Engineer

2012/12～ 2016/05

Provide end to end support in installation, migration and integration of Ericsson IN and VAS Servers with 3pp and core network elements.
● Rajasthan IN De-centralization: 3 CCN(Ericsson NSP6), 3 SDP (6 HP DL360 Gen8 servers in cluster), 1 AIR (HP DL360 Gen9) and 1 Achieve server (Sun T2000) are implemented, integrated into existing IN, core, packet core and 3pps. Also 100 million subscribers migrated from old SDP to new SDP.
● Indosat Audit project: All IN nodes are audited for dimensioning, faults and failures in network and reports were submitted to the customer which generated more revenue to Ericsson in terms of new contract and Indosat bought 6 new hardware.
● Tanzania: 2 Voucher Servers (4 SUN X4-2L servers+2 EMC storage devices) are installed in Geo-Redundancy configuration using Oracle data guard for Airtel Tanzania and 0.5 million vouchers are migrated from old VS to new VS.
● Indonesia: 1 million subscribers migrated from old SDP and CCN to New SDP and CCN for Indosat in Indonesia.
● SME: Additional role is given as Subject Matter Expert for SDP and AIR. As SME I will be responsible to resolve any new issues, new project deployment or to provide RCAs.
● Zambia: NgVS installed in Geo-Redundant configuration (3 instances) for MTN.
● Mobile broadband charging rolled out in 17 African countries and more than 50 devices which included CIP/IP, GY, ESY/SY configuration and Troubleshooting in Ericsson IN servers, routers and switches.
● Complex projects like UCB (USSD Call Back), SMPP integration projects are delivered successfully for 17 African countries.
● Developed and implemented scripts using shell and python for day to day activities and health check-ups which reduced the activity time from 6hrs to 4hrs on average. Also these scripts reduced the manual mistakes and hence reduced outages.
● Additional role is given as SME for CCN, SDP and Cisco routers. As SME I was responsible to resolve any new issues, new project deployment or to provide RCAs.
● Executed more than 400 CR’s (Change requests) on live servers, routers and switches within a span of 9 months which is 10% of all the CRs done in team.(Total CR done by our team of size 25+ is 4000).