Summary
Overview
Work History
Education
Skills
Certification
Accomplishments
DECLARATION
Timeline
Generic
Pankaj Diyewar

Pankaj Diyewar

SENIOR LINUX INFRASTRUCTURE SPECIALIST
Pune,MH

Summary

Senior Linux Infrastructure Specialist with 14 years of experience managing and stabilizing large-scale enterprise production environments (1200+ nodes) across hybrid AWS and on-prem datacenters. Deep expertise in Enterprise Linux (RHEL/SLES/Oracle Linux), SAP ASCS/ERS high-availability clustering, performance engineering, infrastructure reliability, and 24x7 production operations leadership.

Proven track record of delivering 99.97% production availability, reducing MTTR by 73%, improving patch compliance to 98%, and leading global infrastructure teams supporting Automotive, Financial Services, Oil & Gas, and Government platforms. Strong SRE-oriented mindset focused on incident elimination, automation-driven operations, monitoring precision, and continuous platform stability improvement.

KEY IMPACT METRICS

  • Delivered 99.97% SAP production availability
  • Reduced MTTR from 2.8 hrs to 45 mins
  • Reduced recurring P1/P2 incidents by 52%
  • Improved patch compliance 68% → 98%
  • Optimized AWS compute cost by 15%
  • Managed & stabilized 1200+ global Linux/Unix servers

Overview

15
15
years of professional experience
6
6
Certifications
1
1
Language

Work History

Associate Operations Manager

Accenture
05.2021 - Current

Associate Manager – IT Operations & Infrastructure for Automotive & Sap Landscape
May 2021 – Present | Pune, India
Client: Vitesco Technologies (Germany)
Role Overview
Technical and operational lead for hybrid SAP production environments supporting global manufacturing platforms across AWS and on-prem datacenters.
Key Contributions
Linux Infrastructure & Stability Engineering
• Managed 800+ enterprise Linux servers across global production landscape
• Designed and maintained SAP ASCS/ERS HA clusters (Pacemaker/Corosync)
• Diagnosed CPU, memory, and I/O performance bottlenecks using advanced system tools
• Tuned kernel parameters to optimize SAP & middleware workloads
• Resolved AWS resource contention and performance issues
Reliability & Incident Governance
• Reduced MTTR by 73% through structured triage & escalation model
• Reduced repeat P1/P2 incidents by 52% via deep RCA and preventive controls
• Led P1 war-room bridges for critical SAP outages
• Conducted DR simulations validating RTO/RPO compliance
• Improved monitoring precision through alert threshold optimization
Operations Leadership
• Led 12-member global infrastructure team (24x7 operations)
• Designed on-call rotation & escalation matrix
• Published SLA dashboards & availability reports
• Standardized runbooks and operational SOPs
• Coordinated OEM vendors (AWS, SUSE, SAP, Dell, Cisco)
Automation & Compliance
• Automated patching & configuration management via Ansible & Satellite
• Increased patch compliance from 68% to 98%
• Reduced manual operational effort through automation frameworks
• Optimized AWS compute spend by 15%
Environment: AWS, RHEL, SLES, SAP HA, WebLogic, Tomcat, Oracle DB, VMware, Ansible

Unix/Linux Infrastructure Specialist

HCL Nagpur
12.2019 - 05.2021

Client: TotalEnergies (France).

  • Supported 1,200+ Unix/Linux servers worldwide.
  • Managed escalations, incident resolution, and critical issues.
  • Authored SOPs and documentation, improving operational efficiency.
  • Participated in resource planning initiatives to ensure adequate budget allocation for hardware, software, and personnel needed to support infrastructure projects.

Technical Lead - Financial Enterprise Platforms

Cognizant
01.2017 - 11.2019

Client: Oppenheimer Funds, Inc. (United States)

(First 6 months worked as a contractor with Teamware Solutions from June 17, 2016, to January 10, 2017.)

  • Managed 500+ Linux VMs across VMware clusters with HA and DRS, performing patching and DR drills.
  • Administered Red Hat Satellite for patch management, and resolved vulnerabilities via Qualys.
  • Conducted failover testing, performance tuning, and server monitoring to ensure uptime.
  • Managed IP/DNS via Infoblox, server inventory, and decommissioned servers as required.
  • Maintained scheduled processes, CRON jobs, and VMware templates/snapshots for operational efficiency.
  • Mentored an eight-member technical team.

System Administrator

Ozoninfo Engineering
04.2013 - 05.2016

Client - CSIR-URDIP Data Center, Pune, India.

  • Provided Linux server support and performance monitoring across RHEL, SUSE, Ubuntu, and CentOS.
  • Installed and configured LAMP stack, DNS, Samba, NFS, Apache, and VMware ESXi environments.
  • Performed P2V migrations and managed VMware HA and DRS clusters, VMotion, snapshots, and storage.
  • Managed backup and replication (Tap Backup, PlateSpin Forge, PePlink), and installed datacenter hardware.
  • Handled IT helpdesk tickets, SLA compliance, and vendor-supported hardware/software.

System Administrator

Edisphere Software Nagpur
07.2011 - 10.2012
  • Managed Linux production servers, including HostGator cPanel, FTP, web, and email servers.
  • Configured and administered Linux firewalls (Endian/IPCop) and Symantec Endpoint Protection.
  • Monitored and managed network, VPN, VoIP, and Wi-Fi devices.
  • Handled ticket management, documentation, and user procedures.
  • Maintained infrastructure inventory, and ensured operational readiness.

Education

BCom - Accounting And Finance

Nagpur University
Nagpur, India
01-2008

HSC -

Maharashtra State Board
India
01-2003

SSC -

Maharashtra State Board
India
01-2001

Skills

Multi-Industry IT Operations (SAP, Automotive, Financial, Government)

IT Infrastructure Management Cloud Operations (AWS, Azure, Hybrid Cloud)

Datacenter Management: Physical Rack, Switch, Cabling, Server Installation, Environmental & Power Management

Datacenter & Migration Management (On-prem → Cloud, P2V, V2V)

SAP Infrastructure Design & Operations on AWS Cloud

High Availability & Cluster Management (Pacemaker / Corosync)

Linux & UNIX Administration (RHEL, SUSE, Oracle Linux, AIX, Solaris)

Virtualization & Backup Management (VMware, PlateSpin, HP Backup)

Automation with Ansible & Shell Scripting, Infrastructure-as-Code

Monitoring with Icinga & Oracle Cloud Control (OEM)

ITIL-based Service Delivery, Change & Problem Management

IT Service Delivery (Incident, Change, Problem, RCA, ITIL Framework, IT Security, Audit & Vendor Management)

Team Leadership Process Optimization Vendor & Stakeholder Management

AWS (EC2, VPC, IAM, S3, CloudWatch, Patch Manager)

Hybrid connectivity design (On-prem ↔ AWS)

DR topology design & RTO/RPO validation

Landing zone & environment standardization

Cloud cost optimization & right-sizing

Capacity planning & performance forecasting

RHEL, SLES, Oracle Linux, Ubuntu

SAP ASCS/ERS clustering (Pacemaker, Corosync)

SAP on AWS architecture

Kernel tuning & performance optimization

Patch governance & vulnerability compliance

EOL modernization strategy

Incident trend analytics

MTTR reduction frameworks

RCA governance models

Observability architecture (CloudWatch, Icinga)

SLA adherence & risk mitigation

Disaster recovery simulations

Ansible automation framework

Shell scripting

Red Hat Satellite / Orcharhino

Server build automation

Change governance & lifecycle management

Operating Systems: RHEL, CentOS, SUSE Linux Enterprise Server (SLES), Oracle Linux, AIX, Windows Server

Cloud Platforms & Monitoring: AWS EC2, S3, IAM, VPC, CloudWatch, Patch Manager, Azure Cloud Services

SAP & Databases: SAP HA Cluster (ASCS/ERS), SAP NetWeaver, SAP HANA, Oracle DB, WebLogic, Tomcat

Clustering & High Availability: Pacemaker, Corosync, SUSE HAE, Red Hat Cluster Suite, PlateSpin DR, DR/Failover setups

Virtualization & Automation: VMware vSphere/ESXi, HA/DRS, VMotion, Ansible, Red Hat Satellite, Orcharhino, Shell Scripting, Server Build Automation

Networking & Security: TCP/IP, VLAN, DNS, NTP, Firewalls (Endian/IPCop, Cisco), Load Balancers, Multi-datacenter connectivity

Storage & Backup: LVM, iSCSI, SAN/NAS/DAS, RAID, HP Storage, PlateSpin Forge, HP MSL Tape Library

Certification

SAA-C03 - AWS Certified Solutions Architect – Associate (2025)

Accomplishments

  • Managed multi-domain IT operations: SAP Project Infra on AWS Cloud (200+ EC2 instances), Automotive Manufacturing Infra (600+ servers), Mutual Fund house Management Infra (1500+ critical workloads)
  • Implemented Pacemaker HA clusters for SAP ASCS/ERS achieving zero downtime
  • Automated provisioning and patching with Ansible, AWS Patch Manager, Red Hat Satellite and Orcharhino
  • Led P2V and cross-platform migrations (UNIX → Linux, On-prem → Cloud)
  • Standardized operational SOPs and runbooks for infra operations
  • Implemented proactive monitoring via Icinga and Oracle Cloud Control, improving alert response times.
  • Expert in physical and virtual datacenter management, cluster setup, cloud migration, automation, and monitoring
  • Completed datacenter migrations (on-prem → AWS) Completed Upgrade for EOL Servers.
  • Lead a 12-member global infrastructure team, standardizing SOPs and incident response processes.

DECLARATION

I hereby declare that the above-mentioned information is correct up to my knowledge and I bear the responsibility for the correctness of the above-mentioned particulars. Place: Pune Pankaj Diyewar

Timeline

Associate Operations Manager

Accenture
05.2021 - Current

Unix/Linux Infrastructure Specialist

HCL Nagpur
12.2019 - 05.2021

Technical Lead - Financial Enterprise Platforms

Cognizant
01.2017 - 11.2019

System Administrator

Ozoninfo Engineering
04.2013 - 05.2016

System Administrator

Edisphere Software Nagpur
07.2011 - 10.2012

BCom - Accounting And Finance

Nagpur University

HSC -

Maharashtra State Board

SSC -

Maharashtra State Board
Pankaj DiyewarSENIOR LINUX INFRASTRUCTURE SPECIALIST