Hi, I'm Mir, a Linux System Administrator and Web Developer with 10+ years of experience building high-performance websites and managing secure, reliable server infrastructure.
## Highlights
🏆 500+ Successful Projects
🏆 10+ Years of Professional Experience
🏆 500+ Five-Star Reviews
🏆 2000+ Upwork Hours Completed
🏆 40+ Verified Skill Badge Certifications
I hold 40+ verified skill badge certifications from leading organizations including Google Cloud, IBM, and the Linux Foundation, ensuring up-to-date technical expertise and industry best practices.
⁉️Need a dependable Linux server expert who can keep your infrastructure fast, secure, and online?
I specialize in designing, optimizing, securing, and maintaining web servers and websites for businesses worldwide. Whether you need a new server deployment, performance optimization, troubleshooting, security hardening, or ongoing maintenance, I deliver reliable solutions that allow you to focus on growing your business instead of managing technical issues.
In addition to server administration, I build SEO-friendly websites and provide complete website management services including monitoring, backups, security, DNS management, and disaster recovery planning.
## Areas of Expertise
### Linux System Administration
• Linux Server Administration
• Server Hardening and Security
• Performance Optimization
• Troubleshooting and Issue Resolution
• Server Migration and Maintenance
### Web Development
• SEO-Friendly Website Development
• Website Performance Optimization
• Technical SEO Improvements
### DNS and Domain Management
• DNS Configuration and Troubleshooting
• Custom DNS Records
• Domain Transfers and Migration
• Email DNS Setup (SPF, DKIM, DMARC)
### Web Hosting and Server Management
• Web Hosting Maintenance
• Server Deployment and Configuration
• Performance Tuning
• Infrastructure Optimization
• Backup and Recovery Solutions
### WordPress Services
• WordPress Development
• Website Security and Hardening
• Speed Optimization
• Malware Cleanup and Recovery
• Ongoing Maintenance and Support
### Email Services
• Email Deliverability Troubleshooting
• Blacklist Removal Assistance
• SMTP Configuration
• Email Server Setup and Optimization
## Technologies and Platforms
✔ Cloudflare
✔ AWS
✔ Google Cloud Platform (GCP)
✔ DigitalOcean
✔ IBM Cloud
✔ Oracle Cloud
✔ Linode
✔ cPanel
✔ Plesk
✔ Elementor Pro
✔ Google Search Console
✔ SMTP Services
✔ Apache
✔ Nginx
✔ OpenLiteSpeed
✔ RTMP Server Deployment
✔ WireGuard VPN
✔ OpenVPN
✔ And many more technologies and platforms
☎If you're looking for a professional who values reliability, security, performance, and long-term partnerships, I'd be happy to discuss your project requirements and help you find the right solution.
🕑I provide responsive communication, timely delivery, and practical solutions tailored to your business needs.
Let's work together to make your project a success.
Virtual Private Server
WordPress
Linux System Administration
Troubleshooting
Web Hosting
Website Maintenance
DNS
NGINX
Cloudflare
Web Development
Web Server
Virtual Machine
Cloud Computing
Linux
Technical Support
Mohammad Hasan M.
Gazipur City, Bangladesh
$20/hr
5.0
2 jobs
Hi, I am Sumon, have been working in multinational companies as Server Administrator for last 13 years. Currently, I am planning to build up my career in outsourcing.
Summary of experience:
✔️ Linux:- CentOS | Ubuntu | Debian | Redhat
✔️ Apache | Nginx | LiteSpeed | MySQL | PhpMyAdmin | WHM | cPanel Plesk | VestaCP
✔️ Deployments:- LAMP | LEMP | Node.js | Python | Tomcat | JBoss | RoR
✔️ CMS:- Wordpress | Drupal | Joomla | Mediawiki | Moodle
✔️ Server Provisioning: Chef | Ansible | Shell Script
✔️ Mail Server: Postfix, Sendmail, Exim, Dovecot, HMailServer, OpenDKIM, Spamassassin, PostfixAdmin, Zimbra
✔️ Google GSuite | Microsoft 365 Admin | Sendgrid | AWS SES
✔️Security: IPTables, SELinux, TCP-wrappers, Fail2ban, OSSec,CSF/APF Firewall, Endain, IPcop, PFSense, | IPFire | OpenVPN
✔️ Analytics: Awstats, Webalizer
✔️ Databases: MySQL, MSSql, Postgresql
✔️ Reverse Proxy: Varnish, Pound
✔️ Cloud Platform | AWS | Linode | DigitalOcean | Azure | GCP
✔️ Virtualization: VMware | vSphere (vCenter, ESXi) | VirtualBox | KVM | QEMU, XEN, ProxMOX, OpenVZ,
✔️ High Availability: DRBD | Heartbeat | MySQL Master replication |VMWare ESX Cluster | ProxMox Cluster
✔️ Storage & Network FS: RAID, LVM, ISCSI, StarWind, FreeNAS, NFS, Samba,
✔️ Monitoring: Zabbix, Nagios, Monit, Shell script.
✔️ DevOps | CI/CD | Jenkins | Ansible | Git
✔️ Containerisation | Docker |Kubernetes
✅ I will offer 1 hour of free work to let you try and taste the quality. No strings attached. I am glad to look into your project before we start. Just invite me to a job and i would gladly try making this work. That's because i am interested in long term collaboration.
Virtual Private Server
Windows Server
Google Cloud Platform
NGINX
Amazon S3
VMware Administration
Web Hosting
Amazon EC2
Linux System Administration
Data Backup
SSH
Web Host Manager
MD Rakibul I.
Rangpur, Bangladesh
$15/hr
5.0
9 jobs
Greetings! I'm MD RAKIBUL ISLAM, an adept professional with extensive expertise in Linux server administration, web hosting management, and a suite of server technologies including WHM/cPanel, KVM virtualization, Virtualizor, Proxmox, SolusVM setup, SMTP server configuration, DNS, and WHMCS complete setup, accumulated over 7 years of dedicated practice.
Throughout my career, I've actively participated in a multitude of local projects, delivering top-notch solutions and consistently exceeding client expectations. My commitment to excellence, paired with a proactive approach to problem-solving, ensures seamless server operations and optimal performance for your projects.
Let's collaborate to enhance your server infrastructure and achieve your objectives efficiently and effectively. I look forward to contributing my skills and knowledge to your success!
Virtual Private Server
Server Virtualization
Linux System Administration
Server Operating System
Server & Virtualization Software
Server Administration
cPanel
Web Server
Web Host Manager
Web Hosting
Hosting Setup
WHMCS Development
SMTP
MailWizz
Zahid H.
Dhaka, Bangladesh
$18/hr
4.9
36 jobs
Is your PHP app slow, stuck on an old version, or running on a badly configured server? I fix exactly that — and build new systems that don't break down the road.
I'm Zahid, a Laravel & Symfony specialist with 5 years of experience delivering backend systems for SaaS platforms, government organizations, and international businesses. I don't just write code — I solve the real problems behind your technical requirements. 🚀
𝗪𝗵𝗮𝘁 𝗜 𝗦𝗼𝗹𝘃𝗲 𝗙𝗼𝗿 𝗬𝗼𝘂
🔹 Fix slow applications
I identify real bottlenecks — inefficient queries, N+1 issues, missing indexes, poor caching — and improve performance with measurable results.
🔹 Optimize & migrate databases
I restructure poorly designed databases, tune slow queries, add proper indexing, and handle full data migrations — across MySQL, PostgreSQL, and Oracle — with zero data loss and full integrity checks.
🔹 Upgrade legacy systems
Safe upgrades from PHP 5.x / 7.x → 8.x, Laravel and Symfony upgrades with full compatibility and minimal downtime.
🔹 Build scalable backend systems
SaaS platforms, REST APIs, real-time features (WebSockets), and complex business logic designed to scale.
🔹 Integrate payment gateways — I implement secure, reliable payment flows using Stripe, PayPal, Mope payments, and other regional or custom gateways — subscription billing, one-time payments, marketplace payouts, and refund handling all covered.
🔹 Solve server & deployment issues
Proper VPS setup, Nginx/Apache configuration, SSL, security hardening, and production stability.
🔹 Clean up messy codebases
Refactoring legacy systems into maintainable, structured, and developer-friendly code.
𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀
🔹 Laravel & Symfony Development — SaaS, multi-tenant apps, REST APIs, WebSockets, queues, admin panels.
🔹 PHP & Framework Upgrades — PHP 5/7 → 8.x, Laravel 5–12, Symfony version upgrade.
🔹 Performance Optimization — query tuning, Redis/Memcached caching, N+1 fixes, code refactoring.
🔹 Database Optimization & Migration — schema redesign, indexing, query optimization, cross-platform data migration (MySQL, PostgreSQL, Oracle)
🔹 Payment Gateway Integration — Stripe, PayPal, Mope payment, subscription billing, marketplace payouts, webhook handling.
🔹 VPS & Server Setup — cPanel, WHM, Nginx, Apache, SSL, DNS, mail server, firewall configuration.
🔹 Server & Hosting Migration — zero-downtime transfers, database migration, DNS cutover.
🔹 Legacy PHP Modernization — refactoring, security patching, technical debt reduction.
🔹 API & Third-Party Integration — REST APIs, webhooks, Twilio, and custom service connections.
𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲
🔹 Code + Server — One Person
I own both the application and the infrastructure it runs on. No gaps between your developer and your sysadmin.
🔹 Government & Enterprise Delivered
I've built production systems for government organizations and national enterprises — where reliability, security, and accountability are non-negotiable.
🔹 Performance You Can Measure
I don't just say "it's faster." I give you real numbers — query times, page load speeds, server response metrics — before and after.
🔹 Long-Term Code Quality
Clean architecture, SOLID principles, and full documentation so any developer can maintain what I build.
🔹 Global Availability
Flexible hours covering US, European, and Middle Eastern time zones.
𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸
🔹 Backend: PHP, Laravel, Symfony, CodeIgniter, REST APIs, WebSockets, Cron Jobs, Queue Workers, Eloquent ORM, Doctrine ORM, JWT Authentication, Mail Integration
🔹 Database: MySQL, PostgreSQL, Oracle DB, SQL, Database Optimization, Database Migration
🔹 Server: VPS, Dedicated Server, Shared Hosting, cPanel, WHM, Plesk, CyberPanel, DirectAdmin, Nginx, Apache, OpenLiteSpeed, Linux (Ubuntu, CentOS, Debian, AlmaLinux), Windows Server, Docker, Kubernetes, Cloudflare, CI/CD, GitHub Actions, Jenkins
🔹 Frontend: React.js, Next.js, Vue.js, JavaScript, Tailwind CSS, Bootstrap, base44
🔹 API & Third-Party: Payment Gateway Integration, SMS Gateway Integration, Chatbot, Geo-Location APIs, Twillo APIs.
🔹 CMS & E-commerce: WordPress, Shopware, Grav CMS
Tell me your situation — slow app, broken server, outdated codebase, or a new build. I'll give you a clear plan, honest timeline, and get it done right.
Virtual Private Server
PHP
Laravel
Symfony
API Development
API Integration
CodeIgniter
Database Optimization
MySQL
PostgreSQL
Data Migration
cPanel
Linux System Administration
Docker
SaaS Development
Payment Gateway Integration
Websockets
WordPress
React
Next.js
Chinmoy B.
Dhaka, Bangladesh
$30/hr
4.3
40 jobs
With 12+ years of experience, I specialize in Windows, Linux, Network & Virtualization including VMware, Hyper-v, Proxmox and enterprise IT management to deliver secure, high-performance, and scalable infrastructures.
💻 Services that, I Provide:
1️⃣Windows Server, Active Directory, Entra ID, Intune, Microsoft 365 & G Suite
🔹 Windows Server (2012, 2016, 2019, 2022)- Active Directory setup and administration, Users/Groups, OU design, GPO, trusts
🔹 Core services: DNS/DHCP, WSUS, WDS, File/Print servers, permissions/ACLs, SMB shares
🔹 High availability: Failover Clustering, HA/DR planning and implementation
🔹 Identity & access: Microsoft Entra ID tenant management, identity integration (hybrid identity), conditional access basics
🔹 Endpoint management: Microsoft Intune device enrollment, compliance policies, configuration profiles, app deployment, security baselines
🔹 Security & certificates: AD CS / PKI, certificate services, SSL/TLS configuration and hardening
🔹 Microsoft 365 and Google Workspace (G-Suite) admin support (accounts, policies, mail flow basics, and tenant operations)
🔹 Active Directory Certificate Services (AD CS) & Public Key Infrastructure (PKI) – Deployment & Management
🔹 Web & app hosting: IIS installation/configuration, IIS Load Balancing, IIS WebFarm ARR, SSL binding, security hardening, and IIS troubleshooting
2️⃣ Linux & Web Server Administration
🔹 Linux Administration – RHEL, Ubuntu, Debian, CentOS
🔹 Service Management – Samba Server, Mail server, Zimbra, GIT, NFS, ISCSI, FTP, SFTP, Elasticsearch, Redis, LDAP, Docker, Nodejs, Express, NIC teaming
🔹 Database Management – MySQL, MariaDB, MongoDB, Percona, XtraBackup, PostgreSQL, Mirroring/High Availability.
🔹 Web Servers – NGINX / Apache (LEMP/LAMP), HAProxy, reverse proxy, SSL/TLS
🔹 Security: FirewallD, SELinux, UFW, ACL, SSH, hardening
🔹 Automation ( Bash, CHEF, Ansible, Terraform, Python )
3️⃣VMware, Proxmox & Hyper-V Virtualization Expertise
🔹 VMware ESXi, vCenter, NSX, vSAN & Horizon deployment and management
🔹 High Availability, DRS, vMotion, D-Switch, VLANs,& AD integration in VMware
🔹 Proxmox with LXC/KVM, Live Migration, Ceph storage & HA cluster configuration
🔹 Hyper-V setup with clustering, Live Migration, Storage Spaces Direct & Azure hybrid integration
🔹 iSCSI/Fibre Channel SAN, snapshot management & storage optimization
🔹 Strong in VM hardening, disaster recovery & performance tuning
4️⃣ Backup, Storage, Database, & Disaster Recovery
🔹 Veeam Backup & Replication, hardened Linux repo, offsite backup strategy, immutability planning
🔹 Veeam Cloud Connect, Veeam Cloud Connect Replication, Veeam Service Provider, Veeam Backup as a Service (BaaS), Veeam DR as a Service (DRaaS)
🔹 Expertise in Synology NAS, QNAP, TrueNAS, & Nextcloud for secure storage
🔹 Backup, replication, failover, & DR strategies for BCP
🔹 Database admin for MSSQL, MySQL, PostgreSQL,MariaDB, Percona, Mirroring/High Availability, XtraBackup
5️⃣Networking, Firewalls, VPN & Security
🔹Routing & Switching (Cisco, Juniper, MikroTik , Huawei)
🔹 Routing/switching concepts, VLANs, trunking, NAT, LAN/WAN
🔹L4/L7 Firewall Policy Configuration (SonicWall, Sophos, Cisco ASA, Fortinet)
🔹VPN (IPSec, OpenVPN, WireGuard), Load Balancing & HA
🔹SD-WAN Deployment & NSX / NSX-T Micro-Segmentation
🔹Network Monitoring & Optimization using SNMP, NetFlow, Syslog
6️⃣ System Hardening, Security posture, endpoint/SOC tooling & Cloud
🔹 AWS: EC2, S3, IAM, VPC, Security Groups/NACLs, Route 53, Load Balancer, RDS, SNS/SQS
🔹 Skilled in SSL/TLS, clustering, & thread pool tuning
🔹 Strong in log analysis, performance tuning & system hardening
🔹 EDR: SentinelOne, CrowdStrike (deployment support, policy alignment, troubleshooting)
🔹 SIEM / Log management: Wazuh, GrayLog, Splunk, ManageEngine Log360 (log ingestion basics, alerting workflows, dashboard/reporting support)
🔹 Baseline hardening & hygiene: patching approach, access control, audit readiness, and incident-support workflows
🔹 Hardening Windows/Linux systems with Windows Firewall, Firewalld, IPTables, GPOs
🔹 Implementing NIST & CIS benchmarks, audits, patch and ISO-27001,PCI-DSS, HIPAA
compliance
🔹 Python/PowerShell/Bash/Ansible scripting for automation
7️⃣ Monitoring, RMM + Documentation
🔹 Monitoring: Zabbix, Grafana/Prometheus, Nagios, AppDynamics & New Relic
🔹 RMM & MSP tooling: Syncro, ConnectWise (Automate/Manage where applicable), NinjaOne (Ninja RMM) for endpoint monitoring, patching, alerting, and remote support workflows
🔹 Strong focus on clear documentation, diagrams, SOPs, Change Management, reporting, and security posture documentation (controls, checklists, and runbooks)
🚀 Why Choose Me?
✔ 12+ years of enterprise IT experience in Windows, Linux, Virtualization & Cloud
✔ Proven expertise in troubleshooting & optimizing IT infrastructures
✔ Strong security focus – Ensuring system stability & compliance
✔ Efficient automation – Using Python, PowerShell & Bash scripting
VMware vSphere
NGINX
Ubuntu
Microsoft IIS
System Administration
Windows Server
CentOS
Apache HTTP Server
SSL
Web Server
Firewall
TLS1.2
Security Testing
Linux System Administration
DevOps
Docker
Noman A.
Dhaka, Bangladesh
$20/hr
4.7
132 jobs
Client's Satisfaction, Quick & efficient Solution Delivery guaranteed.
Profile: Experience of over 10 plus years in the field of Server/Network Administration with ISP, Corporate IT management. Serving as freelancer here around 10+ years.
- Platforms : Linux, WINNT, VM Administration
- Cloud : Amazon EC2-VPC, Loadbalancing, RDS, Route 53, S3, SNS, VPN,Firewall,Server administration / Rackspace / Azure / Digital Coean / Linode cloud administration.
- DBMS technologies : MySql,Postgresql
- iis/apache/tomcat/Nginx, Subversion,LAMP, LEMP
- WHM / Cpanel build and administration in all sort of server platforms.
- Website maintenance, migration, loadbalancing, DNS, SSL, Web Security
- Email Server implementation, whitelisting, maintenance.
- Jira, Confluence,Redmine administration, implementation & customization.
- Mikrotik Router OS administration with ISP / WISP and total network implementation.
- Web Development with PHP,AJAX,Jquery,HTML,CSS
-Frameworks skill: Laravel, Flutter
- 24 X 7 availability for support & critical issues.
Network Administration
FreePBX
Linux System Administration
DevOps
Asterisk
Firewall
Amazon EC2
A2Billing
Web Host Manager
cPanel
AMP Framework
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