Abhishek Sahu
Senior IT Administrator
Mumbai
Summary
A highly motivated System Admin. Overall 10.3 years of IT experience including Windows/Linux System Administration. Having a strong background in Exchange Server, Lync Server, Active Directory Administration and Virtualization. Experience of team handling and strong analytical, problem solving, organizational and team working skills. Also having good knowledge of VoIP technology including the integration of Lync and Legacy PBX. ESXi 6.5 Deployment/ Configuration Lync Server/ SFB Deployment Office 365 AzureAD RADIA Desktop Management Configuration / Administration RHEL 7.5 Administration / Configuration
Overview
10
10
years of professional experience
2
2
years of post-secondary education
5
5
Certifications
Work History
Team Leader
Doyen Infosolutions Pvt. Ltd.
08.2022 - Current
- Technical Competencies:
- Leading Technical team including L1, L2 and L3 for day-to-day support on Guardicore Micro-segmentation
- Project and customer management
- Managing Guardicore Micro-Segmentation tool for Network security
- Creating network communication reveal map and flows to determine the suspicious communication
- Creating rules to Allow/Block the communication
- Planning for Guardicore thick-client roll out on various banking apps and environment
- Troubleshooting with thick-client on different OS i.e., AIX, Solaris, Linux, Windows etc
- Integration of Guardicore with ServiceNow for incident management
- Deployment of GRAFANA monitoring tool
- Established open and professional relationships with team members to achieve quick resolutions for various issues.
- Mentored and guided employees to foster proper completion of assigned duties.
- Conducted training and mentored team members to promote productivity, accuracy, and commitment to friendly service.
- Built strong relationships with customers through positive attitude and attentive response.
- Assisted in recruitment of new team members, hiring highest qualified to build team of top performers.
- Communicated KPIs outlined in annual plan to inform employees of expectations and deliverables.
- Monitored team performance and provided constructive feedback to increase productivity and maintain quality standards.
- Monitored time and attendance, enforcing compliance with company procedures relating to absenteeism.
- Supervised team members to confirm compliance with set procedures and quality requirements.
- Developed and updated tracking spreadsheets for process monitoring and reporting.
- Conducted regular reviews of operations and identified areas for improvement.
- Helped meet changing demands by recommending improvements to business systems or procedures.
- Optimized customer experience by delivering superior services and effectively troubleshooting issues.
Technical Lead
Doyen Infosolutions Pvt. Ltd
08.2021 - 08.2022
- Evaluated and adopted new technologies to address changing industry needs.
- Investigated system issues and implemented resolutions to reduce downtime.
- Improved systems with addition of new features and infrastructure.
- Organized system operating procedures to strengthen controls.
- Advised management, business and technical staff on solutions using specific domains or technology.
- Educated stakeholders on data protection tactics to reduce breaches.
- Automated monitoring and security measures to reduce required employee attention.
Technical Consultant
Konkan Railway Corporation Ltd
New Mumbai
10.2019 - 07.2021
- Technical Competencies:
- Hardware sizing for Exchange 2016 deployment
- Exchange DB layout planning
- Deployment and configuration of Exchange 2016 Servers
- DAG configuration
- Bulk Mailbox creation in Exchange using PowerShell
- DL’s Creation/Modification
- Creating and Enabling Transport Rule for Mail Flow on requirement
- Troubleshooting with Mail flow
- Exchange Server Queue Monitoring
- Creating Send/Receive connectors as per the requirement
- Installed and configured Red Hat Enterprise Virtualization 4.3 (RHEV 4.3)
- P2V migration using RHEL virt-p2v tool
- Installing VMs on RHEV cluster
- Installed and configured OpenLdap 4.1 on multiple site as master – Slave configuration
- OpenLdap migration from 2.3 to 4.1
- Business application integration with LDAP 4.1
- Installed and configured BIND server as Master – Slave configuration
- Migration of SAMBA fileserver 2.1 to 3.2 with existing permissions
- Configured fileserver user/group quota and auto email notification
- Installed, configured and customized Self Service Password portal for OpenLdap password reset
- MS Active Directory installation and configuration
- Group Policy configuration to auto deploy msi package on clients
- Configuration and troubleshooting with Motadata Network Management System (NMS) tool
- Integration of Linux, Windows, UPS and SNMP devices etc
- With NMS tool
- Configuring Alerts/notifications in NMS
- Managing and troubleshooting with Motadata ITSM tool
- Installation and configuration of Apache and Tomcat web servers on RHEL 7.5
- Project Title : LIC of India EDMS (Electronic Data Management System) deployment and PAN India data migration, from Mar’19
- Investigated system issues and implemented resolutions to reduce downtime.
- Recommended technology upgrades to improve client security.
- Improved systems with addition of new features and infrastructure.
- Assessed business requirements to create focused solutions.
- Organized system operating procedures to strengthen controls.
- Installed system updates to address vulnerabilities and reduce security issues.
- Developed technical requirement documentation for new software products.
- Collaborated with stakeholders to transform client requirements into turnkey solutions.
- Troubleshot incidents reported by end-users to schedule system changes and identify permanent solutions.
Technical Consultant
HP Enterprise India Pvt. Ltd
03.2018 - 09.2019
- Analyzed client business processes to propose optimal software applications for unique requirements.
- Investigated system issues and implemented resolutions to reduce downtime.
- Monitored employee tasks to gauge business functions and inefficiencies.
- Recommended technology upgrades to improve client security.
- Assessed business requirements to create focused solutions.
Technical Consultant
HP Enterprises India Pvt. Ltd.
Mumbai
01.2017 - 09.2018
- Technical Competencies:
- Managing large Virtual infrastructure build upon RHEL 7.5 KVM (500+ RHEL 7.5 virtual servers)
- Deployment and configuration of Barman backup tool on RHEL 7.5 servers
- Taking postgreSQL Database backup using Barman backup tool
- Managing HPE MSL 4048 LTO tape library
- Managing Qstar 6.0 for data archiving on LTO tape library
- Managing HPE MSA 2050 storage system
- Project Title : Punjab National Bank, deployment of Active Directory and Desktop Management tools, from
Consultant
HP Enterprises
10.2014 - 12.2016
- Technical Competencies:
- Designing and implementation of Active Directory Domain Services
- Created Sites, Subnets, Sitelink etc
- To support DC-DR scenarios
- Implementation of Windows server cluster on Server 2012 R2
- Deployment of 6 node Hyper-V cluster
- Migrated Hyper-V VMs across Hosts in non-cluster environments
- SQL Server 2014 cluster deployment
- SQL Database Migration
- Configured SQL DB Log Shipping across the sites
- Implementation of ESXI 6.5 on HPE server
- Installation and configuration of VCenter Virtual Appliance
- Configuration and management of HPE Datacentre Automation (DCA) tool
- Group policy modelling to test the GPO efficiency
- Configuration, Management and Troubleshooting RADIA Desktop Management tool (50000+ Desktops and 7600+ location)
- Planning and Organizing UAT for the SQL server databases Failover and Failback
- Planning and Organizing UAT for the different HPE tools like DCA, UCMDB, SM, AM etc
- Prepared Build Documents of AD installation and configuration, SQL Cluster, Hyper-V Cluster etc.
Technology Consultant
HP Enterprise, Bhilwara Infotechnology Ltd
10.2014 - 12.2016
- Helping the Pre-sales team on various Bids and Projects, preparing Solution and Design documents, from Nov’16 to Feb’18
- My Involvement :
- Handling multiple bids at the same time
- Providing Delivery Opinion to the Sales/Pursuit teams as per the best practice to suit various different customer requirements for messaging (On-Premises, Hybrid or Online)
- Preparing solution and High-Level Documents on various RFP
- Effort estimation and planning for the optimization of the resources
- Preparing the Low-Level Documents as per the finalize solution
- Hardware sizing for MS Active Directory deployment
- Hardware sizing for MS Exchange 2013/2016/2019 and Lync/SFB deployment
- Preparing solution and design documents for O365 migrations, Azure AD Connect and ADFS
- Providing support to the on-site team to deliver the project on time
- Projects
MS Exchange Consultant
Birla Management Corporate Services Ltd
02.2015 - 10.2015
- BMCSL (Migration from Mithi and Exchange 2010, Prepared Design and Solution Documents according to customer environment and their needs (17000 mailboxes)
- Hardware Sizing
- Planning the Database Layout
- Configured Raid Array using HP Intelligent Provisioning utility on HP DL380 Gen9 Servers
- Deployed and configured Exchange 2013 Servers
- Configured DAG
- Planning and execution of UAT
- Mailbox Migration from Mithi to Exchange 2013 (cutover)
- Mailbox Migration from Exchange 2010 to Exchange 2013
- End User support after migration
- Project
MS Lync Administrator
Vodafone India Ltd
04.2015 - 12.2015
- Configured iLO on HP BL460c Gen9 using HP Blade System On-board Administrator (HP c7000 blade chassis)
- Installed VMs on Windows Server 2012 R2 Hyper-V and configured Virtual connect
- Deployed Lync 2013 Enterprise Servers
- Deployment of Lync Server 2013 Enterprise Edition Front End pool
- Installed and configured Lync 2013 EDGE Server pool
- Installed Root CA and Public CA certificates
- Configured DNS load balancing for EDGE Server pool
- Migrated Users from OCS 2007 R2 Server to Lync Server 2013.
Microsoft Lync Administrator
Bajaj Allianz Ltd
10.2015 - 12.2015
- Enterprise Voice Deployment (POC), from Feb’15
Admin
IBM India on Future
01.2014 - 01.2015
- (Telephony)
- Technical Competencies:
- Deployed MS Lync Mediation Server
- Configured Lync Server 2013 Enterprise Voice
- Integrated existing Avaya PBX with Lync using Sangoma (Vega 200G) VoIP gateways
- Configured Inter-Trunk Routing
- Configured Yealink SIP phones (T22P and T48G) without DHCP
- Created Normalization rules in Lync Control Panel
- Project Title : Jet Airways Exchange server 2013 migration from Lotus Notes, from Oct, Role : MS Exchange Admin
- Technical Competencies:
- Configuring and managing Binary Tree Migration Tool, CMT for Exchange
- Migrating Mailboxes from IBM Lotus Notes to MS Exchange using CMT for Exchange
- Enabling Mail Route through Exchange, for migrated Mailboxes
- Bulk Mailbox creation in Exchange using PowerShell
- Creating and scheduling Scripts for daily report in Exchange 2013
- Managing Database Availability Group (DAG)
- Monitoring and troubleshooting DAG replication issues
- Monitoring Exchange Mailbox Database Backup using PowerShell, Focus Info Tech payroll, Pune as Exchange Admin
Admin
Bajaj Auto Ltd
10.2013 - 10.2014
- Exchange, Technical Competencies:
- Configuring and managing Symantec Bright Mail Messaging Gateway 10.1 for Anti-spam, antivirus & content filtering for Exchange server
- Office 365 administration using PowerShell and portal
- DL’s Creation/Modification
- Configured DAG and CAS array for high availability solutions
- Creating and updating spam rules on Symantec Bright Mail server
- Generating SMTP reports on Symantec Bright mail Server for inbound and outbound mails
- Configured End User Quarantine Access to their Hold Messages on Symantec Messaging Gateway
- Monitored backups using Microsoft DPM backup tool
- Creating Recovery Storage Group
- Restoration of Mailboxes and also a single mail as per requirement
- Managing HP Storage Works X3800 NAS Server
- Assigning or increasing Disk Quota on File Server (X3800 NAS) using File Server Resource Management (FSRM) tool
- Providing File Server (NAS) access to user with auto map by creating batch file and assigning required permission
- Managing HP 3PAR StoreServ Storage System
- Working with HP Enterprise Virtual Array EVA-4400 using HP Command View
- Working with ESX 4.0 and ESX 5.1
- Creating and managing VM servers using VSphere, VCentre Client
- Managing Microsoft Forefront Threat Management Gateway (TMG) for Internet Gateway and proxy server
Exchange Administrator
HCL Infosystems Ltd
11.2012 - 09.2013
- APSCAN (Andhra Pradesh Secretariat Campus Area Network) Data Centre
- Role : Exchange Admin
- Technical Competencies:
- Maintenance, Troubleshooting and day-to-day support
- Involved in Migration from Exchange 2007 to Exchange 2013
- Configuring and managing DAG
- Modifying Email addresses as per customer requirements
- Troubleshooting Message Transport
- Creating and Enabling Transport Rule for Mail Flow on requirement
- Outlook client issues troubleshooting
- Configuring and troubleshooting with Outlook Anywhere
- Configuring and Troubleshooting with MS ActiveSync on Various Mobile Devices
- Troubleshooting with Calendar Issues on Mobile Devices, Laptop and Desktop
- Customizing Outlook Web Access page as per customer requirement
- Exchange Server Queue Monitoring
- Maintaining backups using CA ARC server, release 16.5 with HP LTO3 Tape Drive
- Taking Daily System State backup of Domain Controllers and Application Servers
- Performing exchange database offline defragmentation
- Configuration and management of CA SCM 8.1 for Anti-spam, antivirus & content filtering for Exchange server
- Coordinating with Global Vendors for support if required
- Managing Trend Micro Enterprise Antivirus Server
- Creating Exception rule for Scan on Trend Micro Enterprise Antivirus Server
- Working with Active Directory, DNS, DHCP, RAID Levels, FSMO Roles, Domain Trusts and Group Policies
- Web server configuration
- Active Directory replication troubleshooting.
Education
MBA - IT Project Management
Welingkar Institute of Management Development
Mumbai 07.2016 - 05.2018
Skills
Performance improvement
Complaint resolution
Technical Support
Daily workflow improvement
Employee Evaluation
Account management
Planning and Coordination
Analytical and Critical Thinking
Excellent Communication
Knowledgeable in [Microsoft Products: Active Directory, MS Exchange, Skype For Business, Office 365, Azure, Hyper-V OS: Redhat Security: Guardicore Micro-Segmentation]
Accomplishments
- Microsoft 70-346 (Managing Office 365 Identities and Requirements)
- Microsoft 70-347 (Enabling Office 365 Services)
- Microsoft 70-533 (Implementing Microsoft Azure Infrastructure Solutions)
- NetIQ Identity Manager 4.7
- NetIQ Access Manager
- NetIQ Privileged Access Manager
- VMware Datacentre Virtualization v5
- Experience
- AD & Exchange Implementation / Migration
- SQL Server Deployment / Configuration
- Hyper-V Deployment / Configuration
- Red Hat Enterprise Virtualization
- P2V Migration (Physical to Virtual onprem)
Affiliations
Having Good Working knowledge of Exchange server 2007/2010/2013/2016 and Active directory 2008/2012/2016 Deployment/Administration.
Excellent Organizational, Communication, Leadership, Troubleshooting skills and Exposure to Support and Maintenance.
Qualifications
PGDM in 2018 from Welingkar University – Mumbai (IT Project Management)
Certification
[Area of certification], [Company Name] - [Timeframe]
Timeline
Team Leader
Doyen Infosolutions Pvt. Ltd.
08.2022 - Current
Technical Lead
Doyen Infosolutions Pvt. Ltd
08.2021 - 08.2022
Technical Consultant
Konkan Railway Corporation Ltd
10.2019 - 07.2021
Technical Consultant
HP Enterprise India Pvt. Ltd
03.2018 - 09.2019
Technical Consultant
HP Enterprises India Pvt. Ltd.
01.2017 - 09.2018
MBA - IT Project Management
Welingkar Institute of Management Development
07.2016 - 05.2018
Microsoft Lync Administrator
Bajaj Allianz Ltd
10.2015 - 12.2015
MS Lync Administrator
Vodafone India Ltd
04.2015 - 12.2015
MS Exchange Consultant
Birla Management Corporate Services Ltd
02.2015 - 10.2015
Consultant
HP Enterprises
10.2014 - 12.2016
Technology Consultant
HP Enterprise, Bhilwara Infotechnology Ltd
10.2014 - 12.2016
Admin
IBM India on Future
01.2014 - 01.2015
Admin
Bajaj Auto Ltd
10.2013 - 10.2014
Exchange Administrator
HCL Infosystems Ltd
11.2012 - 09.2013