Md. Ariful Haque Bhuiyan Email and Phone Number

1. Day to day operations like maintain and troubleshoot a large environment.2. Monitor system performance, troubleshoot issues, and ensure high availability and reliability of Linux-based infrastructure.3. Automate system administrative tasks using ansible playbooks4. Manage user accounts, permissions, and access controls to ensure proper system security and data integrity.5. Maintaining cloud infrastructure on AWS.6. Maintaining large asset inventory on assets and system configurations for seamless daily operations.7. Provide second-level technical support to resolve complex issues escalated from the ITServiceDesk.

1. Managing day-to-day operations of Microsoft services like IIS, AD, DNS, DHCP, Exchange.2. Managing Office 365 cloud environment like O365 email security and distributing apps across the company devices using Intune. 3. Managing Exchange Online, Teams and Online SharePoint.4. Managing the in-house servers on ESXi and vCenter clusters..6. Administration and development of Azure Active Directory like configuring enterprise applications with SSO, SAML managing group permissions, and managing conditional access for users.7. Managing and monitoring the VEEAM backups for different environments like Dev, Staging and Production.8. Managing the servers on cloud environments like AWS and Azure and managing user’s permission level on GCP cloud.9. Administration of disaster recovery process on AWS and Azure cloud.10. Server patching using SCCM and WSUS and patching the Production servers on AWS using terraform.11. Administration of monitoring systems like Nagios, Zabbix, Datadog, EventLogAnalyzer and Tenable.Administration of Symantec Endpoint Protection and Postfix mail servers.12. Maintaining PCI compliance to pass the audit.13. Providing level 2 and level 3 support to the company clients using Trac-it ticketing system.14. • Server migration from in-house data center to Azure cloud using ARM templates.

1. Linux server administration on different Linux platforms (Redhat, Centos, Debian and Ubuntu).2. Hosting and maintaining the company website on AWS cloud system (EC2, S3bucket, EBS, VPC, RDS, Route53, Elastic Load balancer, Auto-scalling, CloudWatch) and monitor the website (Magento 2.3.3) and ERP system (odoo) using cloud watch and SNS system.3. Creating virtual environments on proxmox (bare metal) for our local development and staging sites.4. Backup creation and disaster recovery planning.5. Updating the live site with version control system using Gitlab.6. Configuring and maintaining the mikrotik routers as firewall, bandwidth manager.7. Leading an IT support team and measuring performance of the whole team.8. Maintaining the office attendance system (Biostar) and surveillance cameras at office premises. 9. Using project management tool Redmine for ERP project and ticketing system Osticket for support tickets.10. Design, Implementation, Administration and Troubleshooting of Enterprise Network, Server, and Workstation11. Reviewing emerging technologies, provide roadmap for IT infrastructure, develop detailed project plans for infrastructure initiatives12. Managing and maintaining OS Patch Management for servers and workstations13. Developing and Implementing Server and Workstation Maintenance Plans14. Maintaining and monitoring all Servers and User Accounts and server security using iptables and TCP wrappers. 15. Responding in a timely matter to technology support requests16. Support all technology equipment, including hardware, software, intranet, internet etc. Assist IT management to prepare the annual budget for IT infrastructure See less17. Bash scripting for system automation on different needs.

1. Communicate with the client for the details of their requirement and coordinate the whole project accordingly.2. Instruct the designers and the developers the workflow and divide the whole project into individual slots and instruct them to execute them within the time limit.3. Before delivering the product to the client, get the design and functionality checked by the QA team and myself to ensure the exact product outcome for the client.4. measuring the risk factors, changed factors, schedule and costs at the starting of the project plan.5. Detailed reporting to the management about the project progress and keeping everything transparent6. Maintain the relationship with the clients and keep them satisfied in every step.7. Lynux server administration (Office server and client server).8. Hosting and configure websites on cloud servers and maintain them on Rackspace, Verio, Media temple, Shared hosting & Amazon EC2 environment. Knowledge of working on EC2, S3, RDS, Route 53, CloudFront, ElasticChache. High availability proxy and load balancing.9. Office network management and maintaining liaison with ISP.10. Installing and configuring LAMP environment for clients and also installing Varnishcache, REDIS/Memcached Server, NGINX, hhvm, php5-fpm server as per requirement.11. Troubleshooting of client servers and office dev server, mail server, dns server, ftp server.12. Ensuring office & client server security using iptables and bandwidth management with scripting.13. Maintaining the version control systems like SVN, Github, bitbucket and project tracking system like redmine, Basecamp, Jira and others.14. Working on Docker environment for client’s project development.

1. Commissioning new link to the client end using Fiber optic, Radio Link, ADSL modem, Broadband Routers and using switches for the expansion of client’s office network. Efficiently Planning and allocating IPs for the clients. 2. Configuring and troubleshooting of Linux proxy server (Squid), SMTP server (Postfix, qmail), POP3 server (Dovecot, qpopper) DNS server (Bind9), webmail (Squirrel mail, Openweb mail, Roundcube mail), FTP server (ftp,vsftp), DHCP server, load balancing. 3. Configuring Wireless routers and Access points for client’s office network and using security policy for secured access of the clients.4. Accessing client servers on client requests for monitoring access logs, maintaining their servers, (Linux) using various commands for configuring, editing different applications on the server until support reaches client’s satisfaction. I had to communicate over the phone and if necessary then had to visit the foreign clients like Embassy of Sweden, Italian Embassy, Singapore consulate, British Airways, Chevron, BBC, Oglilvy & Matthers, SGS Bangladesh etc5. Network troubleshoot using tcpdump and wireshark.

1. All kinds of trouble shootings (Hardware & Software related).2. Networking related works (Building network through structured cabling system and also Configure & administer Wireless Access points for Wi-Fi setup at a new office such as among PCs, CCTV, Printers, and scanners).3. Network monitoring.4. Maintaining Liaison among the office & the ISP. 5. Preparing of daily technical reports.6. Monitoring the Airlines system software (VRS Client).7. Assuring the whole network secured from warm, virus & spyware.