Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Rohana Kanahera Arachchige

Summary

Strategic Infrastructure Specialist possessing 15 years of success in IT department support and infrastructure management. Highly skilled in system performance analysis and improvements.

Overview

23
23
years of professional experience
1
1
Certification

Work History

Infrastructure Consultant

Customer Capital Consulting Pte Ltd
04.2017 - Current
  • Design, develop and optimize cloud infrastructure.
  • Analyzed and maintained system and application performance.
  • Implement enterprise IT infrastructure monitoring.
  • Cloud cost optimization, migration readiness assessments and value realization On-premises workloads migration to the cloud.
  • Be responsible to maintain services once they go live by measuring and monitoring availability, performance, and overall system health.
  • Develop automation code for change control, configuration management, deployment and maintenance of infrastructure and applications through CI/CD pipeline.
  • Automate provisioning by Infrastructure as code (IaC) and Configuration-as-Code (CaC).
  • Design, Implementation and integration applications in GDC, GPC, GCC, GCC 2.0 and Cloud.
  • Perform Governance model workshops to help customers prepare for cloud adoption.
  • Migrate On-premises applications such as Dynamics 365, MS SQL, MS exchange and SharePoint into LaaS, PaaS and SaaS Cloud.
  • Extend on-premises network to the Microsoft global network by using ExpressRoute.
  • Design and implement Azure identity and access management to enable partners and contractors’ access, such as B2B, multi-tenants’ access.
  • Develop technical designs, solutions and codes to integrate Azure services with M365, D365, SaaS and other web applications.
  • Worked closely with Project Managers throughout the lifecycle of the project.
  • Work closely with IT procurement lead to purchase and necessary software and subscriptions to support business demand such as Software license, SaaS subscription, Public cloud subscription.
  • Topology Integration Microsoft Dynamics CRM with enterprise applications such as Active Directory, ADFS server, MS exchange server, SharePoint server, MS SQL server and Power Bi.
  • Worked closely with clients to analyze IT system requirements, client’s information technology needs and their resources to plan IT projects and fulfill client’s expectations.
  • Creating high level design for technology refresh and upgrade projects within client environment.
  • Providing technical presales support and Solution for cloud, hybrid, and On-premises environment.
  • Designed Group Policies to implement Security for Active Directory Resources in Multi Forest Environment.
  • Independently Drive Proof of Concepts, Demo, Presentations and positioning in front of C-Level Executives.
  • Plan, schedule, and execute period patch/CU/version/platform update to existing enterprise-level customer environments within stipulated downtime.
  • Fine tune performance parameters for Dynamics 365, MS SharePoint, MS SQL and other related components to ensure system function at optimum level.
  • Performed Vulnerability Assessments and Risk assessments as well as developing information security policies and procedures.
  • Work on forming BCP/DR procedures for various clients.

Information Team Leader

PC Hub Technology
12.2000 - 01.2022
  • Design, deployment, maintenance and operation of the multi-user systems. Responsible for the LAN, MAN and WAN system setups.
  • Worked with the operating systems such as windows 2000, 2003 server, Windows XP and Windows vista.
  • Worked as team leader in database design and constructed entity relationship diagram (ERD) for data modeling.
  • Analysis, Design and Implementation software application using Microsoft development tools.
  • Maintained database systems to track and analyze operational data.

Systems Project Manager

Logicflow Pte Ltd
10.2015 - 10.2016
  • Manage project execution to ensure adherence to budget, schedule, and scope.
  • Interacting with customers and other IT vendors and prepare technical requirement and design documentation.
  • Managed various IT projects to meet deadlines and customer requirements.
  • Ongoing evaluation and analysis of current virtualization infrastructure to provide optimum performance.
  • Determining customer requirements designing and implementing VMware/ Hyper V-based solutions architectures.
  • On Premises Customer Workload Analysis and planning the Migration to the Public & Private Cloud Solutions with minimal impact to the customer Production environment.
  • Lead the technical recovery in the case of a disaster.
  • Evaluating the functionality of systems.
  • Perform risk assessments to develop response strategies.
  • Define cloud network architecture using Azure virtual networks, VPN and express route to establish connectivity between On-premises and cloud.
  • Provide technical guidance on building solutions using Azure LaaS, PaaS and other services.
  • Troubleshoot and identify performance, connectivity and other issues for the applications hosted in Azure platform.
  • Building and maintaining deployment and infrastructure automation tools.
  • Develop and maintain technical documentation for the systems and processes, including detailed design documents, build procedures and standards, and technical support guidelines.

Senior System Analyst

Muthu Chanda Pte Ltd
10.2014 - 09.2015
  • Designing architecture and implementation Projects for Enterprise/ SME customers in Asia PAC region.
  • Work with clients to define the scope of a project.
  • Build strong working relationships with Customers, technical and business partners and act as an escalation point for a variety of production support issues.
  • Design, implement and maintain cloud environments that fulfill customer and internal requirements.
  • Provision AWS resources for the application.
  • Knowledge of modern authentication protocol and technologies such as SAML and OAuth.
  • Design, delivery and implementation as well as maintenance applications such as MS SharePoint Servers and Exchange servers.
  • Optimize the systems environments with respect to data access methods, access performance, storage, data integrity, system performance and system availability.
  • Develop and maintain technical documentation for the systems and processes, including detailed design documents, build procedures and standards, and technical support guidelines.
  • Verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system/application logs, and verifying completion of scheduled jobs.
  • Working with Web Content Management (WCM), Enterprise Content Management (ECM), and Business Intelligence features like Excel Services, Dashboard, Report Center, External Data Sources, and KPIs.
  • Proactively identify opportunities for improving the systems environment, including increasing efficiency and speed of processes, providing increased automated monitoring.
  • Pre-sales and business development.

IT Manager

Mail Order Business International Pte Ltd
10.2012 - 10.2013
  • Manage and supervise IT Department in the Organization.
  • Design, implement and maintenance Network, Servers and applications infrastructure.
  • Design, implement, manage and administer MS exchange server as well as support for the global users.
  • Responsible for the technical analysis, administration, performance monitoring & tuning, troubleshooting and problem resolution for application solutions in a global organization.
  • Optimize the systems environments with respect to data access methods, access performance, storage, data integrity, system performance and system availability.
  • Designing and implementing Disaster Recovery Solutions. Specifically, in relation to Data Replication and Recovery.
  • Manage and optimize processes for data intake, validating and mining as well as modeling, visualization and communication deliverables.
  • Filter and cleanse unstructured data into usable data sets that can be analyzed to extract insights and improve business processes.
  • Data design, development, implementation and testing of variable data/variable data imaging projects.
  • Handling and well troubleshooting Commercial printers such as Fuji Xerox and Oce as well as related printer software applications.

IT Manager

Swiss Post International Pte Ltd
02.2007 - 10.2012
  • Managed and supervised entire IT Infrastructure of the company as well as managed and supported for the Asia subsidiaries.
  • Introduced, designed and implemented Server, Network and application infrastructure.
  • Work with business teams to plan and implement projects.
  • Improved application performance and workload performance.
  • Provide CRM administration support for the sales department.
  • Implement, integration, testing and maintain MS CRM system as well as support for the ongoing change requests.
  • Monitor the CRM system health and logs ensure prompt resolution is achieved within the specified timeframes.
  • Prepare documentation CRM system updates, update manuals and written instructions and perform training to ensure all users are up to date.
  • Work with HQ IT team to integrate standard SharePoint solution for Asia subsidiaries.
  • Installation, Configuring, Deploying, administer and migrating SPS 2003, WSS 3.0, MOSS 2007 and SPS 2010.
  • Preparation of the Unit Test Cases and review of various Test Cases (Unit, Integrated & System).
  • Implementation/Upgrade/Migration of Exchange Servers such as 2007 and 2010 as well as integrated with local and Asia subsidiaries.
  • Implementation/Upgrade/Migration of Communication Servers such as OCS2007 and Lync 2010 as well as integrated with Asia subsidiaries.
  • Designed and implemented in-house software’s Applications such as Track and Trace system, Mail Management system and Warehouse Management system.
  • Directly Communication with company IT Projects, Operation issues with Global IT Team.
  • Analyzing details and communicate with local vendors for buying IT equipment’s according to relevant budgets.
  • Develop and maintain technical documentation for the IT systems and processes, including detailed design documents, security policies and technical support guidelines.
  • Well Handling and troubleshooting such as Fuji Xerox and OCe commercial printers as well as related printer software application.

Education

Bachelor of Science - Computer Application

University of Sunderland
Singapore

Advance Diploma in Computer Science
Singapore

High School Diploma -

University of Sunderland
Singapore

Skills

Operating systems: Windows Server 2003, 2008, 2012R2, 2016, 2019, 2022 Linux CentOS, Debian, Ubuntu Windows Vista,7,81,10 Mac OSX Mountain Lion, Mavericks

Virtualization: Hyper-V VMware

Public Cloud Platforms: Azure AWS

Azure: ARM VNET ExpressRoute Load balancing services Azure Active Directory AD connector APIM VM DNS Storage SQL App service DSC Bot service DevOps Azure monitor Application insights Docker Container Kubernetes services IaC/ CaC tools Eg Terraform/ Ansible Azure Bicep Azure Front door Azure blueprints Azure Sentinel Recovery Services vaults API Management services Azure Logic Apps

Microsoft 365: Power Platform Exchange SharePoint Teams Power automate MS Forms Power BI Endpoint Manager License provision Mobility and Security Custom Domains Reporting & Health

Software: Active Directory DNS DHCP ADFS Dynamics 365 Power Bi MS Exchange SharePoint MS SQL WSUS MS System Center (SCOM, SCCM and SCVMM)

Security: Azure Security policies SSO Multi factor authentication 365 security and compliance Conditional access advanced threat protection Kerberos authentication Microsoft Defender Azure RBAC

Network: VLAN VPN NAT WLAN WINS VNET EXPRESSROUTE site-to-site VPN gateways

CRM Tools: Dynamics CRM 365 v6,7,8,9 [Customer Engagement, Customer Voice, PSA, Sales and Marketing] Workflow SSRS Plugin Registration Data Migration Utility Power Apps portals Dataverse

Centralized Endpoint: Sophos Central Endpoint Protection (Antivirus, WEB & Application Control) Symantec End Point Protection

Data Leakage Prevention (DLP) & Encryption: Azure Key Vault Bitlocker SafeNet Luna HSM Sophos Central Endpoint Protection DLP Sophos Encryption

Backup & Disaster Recovery: NetBackup Veeam Acronis Backup Exec Azure Protection Manager & Replication Azure Site Recovery Amazon S3

Scripting: PowerShell VB scripting Bash Java

Vulnerability Assessment: Nessus BurpSuite

Centralized Patch Management: ManageEngine Patch Manager Plus WSUS SCCM SolarWinds

Clustering: ESXi Cluster Microsoft Clustering

Database: Azure SQL AWS RDS MS SQL Server MY SQL server

Web Servers: IIS (Internet Information Service) 7, 75, 8, 10 Apache SSL Certificates (SSL, TLS)

File Transfer Platform: WS_FTP Server – SLIFT-Ez Classic & SLIFT-Pro Classic (SFTP)

Issue Tracking version control, CI, CD: Atlassian JIRA VSTS Bitbucket Jenkins Azure DevOps

Source Control: TFS Github GitFlow

Monitoring: SCOM Azure Monitor Squared Up SolarWinds Tenable Splunk ManageEngine

Hardware & Storage: HP, DELL, IBM, LENOVO servers Routers Switches (Cisco, HP, Linksys) Firewalls (FortiGate, Checkpoint, Cisco, SonicWALL) Load balancer F5, NetScaler and MS NLB) NAS/SAN Storage

Certification

  • Microsoft Certified Azure Solutions Architect Expert.
  • Microsoft Certified Azure Administrator Associate.
  • Microsoft Certified Professional on Microsoft Azure Architect Design (AZ-304).
  • Microsoft Certified Professional Designing Microsoft Azure Infrastructure Solutions (AZ-305).
  • Microsoft Certified Professional on Microsoft Security, Compliance, and Identity (SC-900).
  • Have successfully completed training course Microsoft Azure Architect Design at TRAINOCATE Singapore.
  • Microsoft Certified Professional on Microsoft Dynamics 365 customer engagement (BM2-715) Online Deployment.
  • Followed Unix/Linux, Network & Systems Administration at Turnkey IT Training of Colombo.
  • Microsoft Certified Solutions Associate (MCSA) training course at Turnkey IT Training of Colombo.
  • Followed ITIL V3 Foundation Certification course at Turnkey IT Training of Colombo.

Timeline

Infrastructure Consultant

Customer Capital Consulting Pte Ltd
04.2017 - Current

Systems Project Manager

Logicflow Pte Ltd
10.2015 - 10.2016

Senior System Analyst

Muthu Chanda Pte Ltd
10.2014 - 09.2015

IT Manager

Mail Order Business International Pte Ltd
10.2012 - 10.2013

IT Manager

Swiss Post International Pte Ltd
02.2007 - 10.2012

Information Team Leader

PC Hub Technology
12.2000 - 01.2022

Bachelor of Science - Computer Application

University of Sunderland

Advance Diploma in Computer Science

High School Diploma -

University of Sunderland

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Rohana Kanahera Arachchige