Hi, I’m Qaisar a senior System & Cloud Engineer + Full-Stack Developer with 10+ years of hands-on experience helping businesses build, migrate, automate, and scale their technology with confidence. I work with startups and growing companies that want reliable systems, secure infrastructure, and software that actually works in production not fragile setups or demo-only solutions. 🔹 What I Do Best Cloud, IT & Systems Administration Google Workspace setup, administration & complex migrations (Workspace ↔ Workspace, cPanel/IMAP → Workspace, Google → Microsoft 365) Microsoft 365, Azure, Windows Server & Active Directory Email deliverability & security: SPF, DKIM, DMARC, MX, DNS VMware virtualization, server optimization & infrastructure planning Backup & disaster recovery with Veeam Firewalls & networking: pfSense, MikroTik, VPNs, VLANs, load balancing 👉 Result: Secure, downtime-free environments with clean migrations and zero data loss Full-Stack Development & AI Automation Build production-ready SaaS apps, dashboards & internal tools Automate manual workflows using AI & event-driven automation Integrate AI into real business systems (not experiments) Tech Stack Frontend & Backend: React, Node.js, TypeScript, Express AI & Automation: OpenAI API, LangChain, RAG pipelines, n8n, Agentic AI Databases: PostgreSQL, MySQL, MongoDB, Redis, Pinecone DevOps: Docker, CI/CD, cloud deployment & server management Integrations: REST/GraphQL APIs, Webhooks, CRMs, ERPs, Slack, MS Teams 👉 Result: Systems that save time, reduce tools, and scale cleanly ✅ What Clients Like About Working With Me Clear communication & honest timelines Strong planning before execution Deep technical knowledge across IT + software + cloud Long-term mindset systems built to grow, not break “Get it done” attitude with real ownership 🏢 About My Team I run Sysconnects, a small, focused team delivering cloud engineering, full-stack development, and AI-driven automation. When needed, I can scale quickly with experienced resources without sacrificing quality. If you need one person who understands infrastructure and software, I’m here to help.

Hello! I am an experienced NOC Engineer with 4 years of hands-on experience in monitoring, maintaining, and troubleshooting complex network infrastructures. I specialize in proactive network management, ensuring optimal performance and uptime for critical systems. My key skills include: Real-time monitoring and incident management Network performance optimization and minimal troubleshooting Expertise in tools like SolarWinds, WhatsUp Gold, Zabbix, and WSWatch Experience with TCP/IP, VPN, LAN/WAN, BGP, OSPF, and other network protocols Strong knowledge of ITIL and ticketing systems like Manage Engine, Jira, etc. 24/7 support for seamless network operation and quick issue resolution

100% Job Success Rate Top Rated Designing and Managing Enterprise grade Infra. 10+ years of extensive experience in Cloud Environment, Corporate Network, FinTech, MSP, Retail, Hedge Fund and ISPs. I have expertise in below major environment and technologies: Cloud Expertise: Amazon Web Services (EC2, S3, VPC, IAM, Security-Groups, DirectConnect, Transit Gateway, WAF, VPN Gateway, Private Gateway etc) Google Cloud Platform (IAM, Compute Engine, Firewall, Partner Interconnect, VPN, VPC etc) Azure Cloud (vNET, Network Gateways, Resource Group, Firewall, VMs, Express Route, VPNs, Routing) Security: Cisco FMC, FTDs & ASA Cisco Meraki, Palo Alto Network Firewalls and Panorama, Fortinet, Juniper, OPNsense, pfSense, Huawei, FortiManager, Fortigate Firewalls, F5 BigIP LTM WAF, IPSec & Remote Access VPNs, Cisco Secure Connect, Umbrella, NGIPS, Threat Prevention, URL Filtering, Cisco ISE, Cisco DUO, TACACS & Radius Authentication, SIEM, Cortex XDR, Wazuh. Routing: OSPF, BGP, MPLS, Integrated IS-IS, Policy Base Routing using Route Maps, TCP/IP, Layer 3 Redundancy (HSRP, VRRP), IP Spoofing, Virtualization (VRF), IP SLA, NAT/PAT, GRE Tunnels. Switching: Nexus VPC, Cisco Stack, Catalyst VSS, VXLAN, Spanning Tree Protocol, EtherChannels (LACP, PAGP), Access-Maps. DevOps: Terraform, Ansible, Python, Git, BitBucket, Docker, Jenkins, Linux, Netbox, Jira, ServiceNow, Wireshark Monitoring: Cacti, Nagion, PRTG, MRTG, LogicMonitor, SolarWinds, Xymon, Graphana, ThousandEyes, Dynatrace. Furthermore, I have also worked extensively on Meraki SD-WAN and in wireless I have hands-on on Meraki, Huawei and ARUBA wireless solutions. PCNSE, PCNSA AWS SAA-C03 RHCSA

A result-driven IT professional with extensive experiences in multi platforms (Network, Systems & Firewall as well as Email Deliverability Platforms) engineering, administration and support with total working experiences in Singapore (6 years 8 months) and in Bangladesh (5 years 10 months). In-depth expertise in the implementation, analysis, optimization, troubleshooting and documentation of global network, firewall and systems as well as monitoring network platform that capitalizes on expertise in CISCO Routers/Switches, ASA, Checkpoint, Juniper SRX (Firewalls and Routers), Fortigate, Sonicwall, Monowall, IPTABLES firewalls, Linux/Unix (RedHat, Debian, SUSE, BSD, CENTOS, FC, Ubuntu), Windows 2000/2003/2012R2 platform, F5 LTM/GTM devices, Nokia checkpoint (Provider1 and Smart Manager). Dedicated to pursue further challenges in the field of Network & Security as well as System Administration/Engineering wherein my skills and knowledge will be highly developed and utilized. Maintain focus on achieving end-results while demonstrating strategic problem solving skills and ability to follow through multi-tasking job. Scope of Intervention • Installation (Routers, Switches, Servers, Patching, Applications, Firewalls etc) • Troubleshooting (Network, Firewalls, Systems, Apps etc) • Test & Commissioning (Network & Security projects for Routers, switches and firewalls & COLO servers) • Troubleshooting of Email Marketing platforms (Sendgrid, Mailchimp, JangoMail, AWS SES etc. as well as company hosted SMTP servers with Postfix, PowerMta, Exim and any other MTA issues for official Email Platforms or Bulk sending platforms. • Monitoring (Nagios, Opsview, Solarwinds, Cacti, HPNA, ENM, APPSVIEW, • BMC Proactive, Intermapper, HP Netcool, Splunk, eHealth, Sitescope etc.) • Ticketing – (Jira, Maximo, Salesforce etc.) • Documentation and Diagrams – (Sharepoint, Visionael and MS Visio etc) • Global Meetings (For projects and troubleshooting) Industries & Specialties • Telecommunication (VoIP and SMS) • Solutions Provider (Network & Security) • Managed Services Provider (Network, Security, Servers & applications) • Bank Network Infra (Network, Security & Systems)

🛡️ CCIE-Certified Network & Security Expert | 15 Years Experience Your network infrastructure is your business backbone. I make it bulletproof. Enterprise-grade solutions for security, cloud, and wireless—delivered fast, right, and with 14 days FREE post-deployment support. ⚡ WHAT I SOLVE FOR YOU 🔐 Network Security Breaches → Multi-layered firewall architecture that stops threats ☁️ Complex Cloud Migrations → Seamless AWS/Azure deployments with zero downtime 📡 WiFi Dead Zones → Professional site surveys + enterprise wireless that works everywhere 🏢 Data Center Buildouts → From concept to live deployment for any organization size 🔄 Network Performance Issues → Advanced troubleshooting that finds and fixes root causes 🏆 ELITE CERTIFICATIONS ✅ CCIE Security (Cisco's Top-Tier Expert Certification) ✅ Fortinet NSE8 (Network Security Expert) ✅ JNCIP (Juniper Networks Certified Internet Professional) ✅ JNCIS (Juniper Networks Certified Internet Specialist) ✅ CCNP Routing & Switching ✅ CWNP Certified Wireless Network Professional ✅ Azure for Network Architects 🔥 FIREWALL & SECURITY PLATFORMS Fortinet (NSE8 Certified) 🔸 Models: FortiGate 400F, 200F, 100F, 80F, 60E 🔸 Management: FortiManager, FortiAnalyzer 🔸 Features: HA, SD-WAN, IPS, UTM, Web Filtering, App Control Juniper (JNCIP/JNCIS Certified) 🔸 Models: SRX 550, 345, 1500 🔸 Features: Zoning, Clustering, Auto-Failover, Traffic Engineering Cisco 🔸 Models: ASA 5515, Meraki MX, FTD 2000/4000 🔸 Full lifecycle: Design → Deploy → Manage Other Platforms 🔸 Sophos | SonicWall | WatchGuard | Arista | UniFi 🌐 VPN EXPERTISE ✔️ IPSec Site-to-Site VPN ✔️ SSL/Remote Access VPN ✔️ OpenVPN Deployment ✔️ Cloud VPN (AWS & Azure integration with BGP) ☁️ CLOUD INFRASTRUCTURE (AWS & AZURE) AWS 🔹 VPC Design & Security Groups 🔹 Site-to-Site VPN with BGP 🔹 Transit Gateway & VPC Peering 🔹 Route53, ELB, CloudWatch Azure 🔹 Virtual Networks & VPN Gateway 🔹 Azure Firewall & Active Directory 🔹 SAML 2.0 Integration 🔹 Blob Storage & Network Security Groups Cloud Firewalls 🔹 Fortinet & Juniper Virtual Appliances 🔀 ADVANCED ROUTING & SWITCHING Routing Protocols ✳️ BGP (eBGP/iBGP) | OSPF | Route Redistribution ✳️ Policy-Based Routing | QoS | Traffic Shaping ✳️ Internet Load Balancing | Performance-Based Routing Switch Platforms ✳️ Cisco: Catalyst 3850, 3750, 9300 Series ✳️ Juniper: EX 3400, 4600 ✳️ Fortinet: FortiSwitch Series ✳️ Brocade: ICX 7450, 7550, 7100 ✳️ Others: Aruba, HP, UniFi 📡 ENTERPRISE WIRELESS SOLUTIONS Site Survey Tools 📶 Ekahau | NetSpot (RF planning & heat mapping) Wireless Platforms 🔷 Ruckus: ZoneDirector 3000/1205, Virtual SmartZone, Cloud, Analytics 🔷 Cisco: WLC 3501, Aironet AP 4800 🔷 Juniper Mist: AP33, AP43 with AI-driven insights 🔷 Aruba: Controllers 7x Series, Aruba Cloud 🛠️ Advanced WiFi Troubleshooting: RF interference, roaming, capacity optimization 🏗️ WHAT I BUILD & OPERATE FOR YOU Complete Network Lifecycle Management 🏢 Greenfield Deployments → Building your network from absolute zero 🔧 Brownfield Transformations → Modernizing existing infrastructure 📏 Any Scale, Any Stage: ├─ Startups (5-50 users) ├─ Mid-Market (50-500 users) └─ Enterprise (500+ users, multi-site) Full-Stack Services 🎨 Design Phase ✦ Network architecture blueprints ✦ Security framework planning ✦ Scalability & redundancy design ✦ Vendor selection & cost optimization ⚙️ Deployment Phase ✦ Hardware installation & configuration ✦ Security policy implementation ✦ Testing & validation ✦ Staff training & documentation 📊 Operations Phase (24/7/365) ✦ Managed NOC Services → Round-the-clock network monitoring ✦ Managed SOC Services → 24/7 security operations & threat response ✦ Structured SLA Framework → Guaranteed response & resolution times ✦ Proactive Maintenance → Issues fixed before they impact you ✦ Dedicated Team → Expert engineers assigned to your infrastructure Why Choose Managed Services? 💰 Cost-Effective → Less than hiring full-time network staff ⏰ Always Available → No gaps in coverage, no vacation downtime 🎓 Expert Knowledge → Access to CCIE-level expertise 24/7 📈 Predictable Budgeting → Fixed monthly costs with SLA guarantees 💎 MY CLIENT GUARANTEE 🎁 14 Days FREE Support after deployment 🚀 Fast Response Times within business hours 📋 Complete Documentation for every project 💬 Clear Communication in non-technical language 🎯 Solutions That Scale with your business growth ✅ PERFECT FIT PROJECTS ✔️ Network security audits & hardening ✔️ AWS/Azure cloud migrations ✔️ Enterprise data center setup ✔️ Wireless network deployment ✔️ SD-WAN implementation ✔️ Firewall policy optimization ✔️ VPN setup & troubleshooting ✔️ High-availability architecture 🚀 LET'S TALK Got a network challenge? I've solved it before. Click "Invite to Job" and let's discuss your specific needs. I'll provide a clear roadmap to success. Network Security | CCIE | Fortinet NSE8 | Juniper JNCIP | AWS | Azure | Firewall | VPN | SD-WAN | Wireless | Ruckus | Cisco | Data Center |

System administrator for various Linux distributions, database and network administrator. Managing complex deployments for python, php, java and nodejs. Security technology specialist with over 15 years of experience in wide areas of network engineering and management, cyber and systems security, software and web development, cloud computing. Dedicated to improving critical thinking and providing best solutions and results. Able to adapt to changing priorities and maintain a positive attitude and strong work ethics. * Worked on various vpn implementation project for financing and banking industry (payment gateways, SIP implementation, etc.), gateway and remote access for both Unix and Windows servers * Experience with various vpn platforms (pfsense/opnsense, vyatta, vyos, openvpn, wireguard, shadowsocks, Unix based vpn, etc.) * PCI compliance specialist, able to deliver quality in short time * Strong troubleshooting network and routing problems skill * ElasticSearch cluster and replication, logstash, kibana and indexing strategies specialist

Do you need a reliable System Administrator to keep your servers secure, optimized, and running 24/7? I specialize in system administration, server management, and cloud infrastructure, helping businesses maintain stability, scalability, and security across hybrid environments. ⚙️ What I Do I provide end-to-end system administration and technical support for both Windows and Linux ecosystems — ensuring high performance, strong security, and minimal downtime. Core Services: 🧩 Windows & Linux Server Management (Ubuntu, CentOS, Red Hat) 🔒 Active Directory, Group Policy, and User Management ☁️ Microsoft 365 & Azure Administration (VMs, Azure AD, IAM, MFA) 🧠 Network Administration & Security (VPNs, Firewalls, Load Balancing) 💾 Backup & Disaster Recovery (Veeam, Acronis, Windows Backup) ⚙️ Server Virtualization (VMware, Hyper-V, Proxmox) 🔧 Automation & Scripting (PowerShell, Bash) 🛠️ Remote IT Support & Troubleshooting (TeamViewer, RDP, AnyDesk) 🌐 Tools & Technologies Operating Systems: Windows Server, Ubuntu, CentOS, Red Hat Platforms: Azure, Microsoft 365, VMware, Hyper-V, Proxmox Networking: Cisco ASA, Fortinet, pfSense, Nginx, HAProxy Monitoring: Nagios, PRTG, SolarWinds Backup: Veeam, Acronis, Windows Backup ⚡ Why Clients Choose Me ✅ 20+ successful system administration projects with 5-star results ✅ Proactive monitoring to prevent issues before they occur ✅ Fast response times and detailed documentation ✅ Experienced in both on-premises and cloud environments ✅ Dedicated to delivering secure, efficient, and reliable IT solutions Let’s optimize your systems for performance, security, and uptime. 💬 Contact me to discuss your infrastructure and how I can help streamline it.

🏆 Top Rated Plus | 100% Job Success 🏆 Senior Infrastructure Engineer 🏆 Linux • Networking • Monitoring • Automation • Security Operations • Windows • DevOps I help businesses design, troubleshoot, monitor, secure, and automate production infrastructure environments. With 15+ years of hands-on experience across Linux systems, cloud infrastructure, enterprise networking, monitoring platforms, observability workflows, infrastructure automation, and security operations, I focus on solving complex operational and infrastructure challenges reliably and professionally. ━━━━━━━━━━━━━━━━━━ 💻 Infrastructure & Linux Engineering ━━━━━━━━━━━━━━━━━━ ✅ Linux administration (Ubuntu, Debian, AlmaLinux, CentOS, RedHat) ✅ Infrastructure troubleshooting & operational support ✅ Server hardening & patch management ✅ Performance tuning & infrastructure optimization ✅ Docker & containerized environments ✅ VPN deployments (WireGuard, OpenVPN, IPsec) ✅ DNS troubleshooting & infrastructure migrations ✅ NGINX, Apache, LiteSpeed optimization ✅ MySQL, MariaDB, PostgreSQL administration ✅ Infrastructure monitoring & operational visibility ━━━━━━━━━━━━━━━━━━ 📊 Monitoring & Observability ━━━━━━━━━━━━━━━━━━ ✅ Zabbix deployment, templates, alerting & monitoring ✅ Graylog centralized logging & syslog ingestion ✅ Infrastructure observability workflows ✅ SNMP monitoring & telemetry collection ✅ Infrastructure dashboards & alerting strategies ✅ Log parsing, visibility & operational troubleshooting ✅ Monitoring Linux servers, switches, VPS, cloud environments & infrastructure services ━━━━━━━━━━━━━━━━━━ 🌐 Network Engineering ━━━━━━━━━━━━━━━━━━ ✅ Arista & Cisco Nexus operational support ✅ VLANs, VRFs, routing & switching ✅ WireGuard & site-to-site VPN deployments ✅ A10 Networks & CGNAT operational support ✅ Network troubleshooting & operational visibility ✅ Firewall policy troubleshooting ✅ Infrastructure telemetry & monitoring integrations ✅ Infrastructure cabling & operational deployments ━━━━━━━━━━━━━━━━━━ ☁️ Cloud & Infrastructure Operations ━━━━━━━━━━━━━━━━━━ ✅ AWS infrastructure support ✅ Cloudflare integrations & DNS management ✅ EC2, VPC, RDS, Redis & infrastructure deployments ✅ Amazon SES, SPF, DKIM & DMARC configuration ✅ Email deliverability troubleshooting ✅ Cloud migrations & infrastructure onboarding ✅ Infrastructure automation using Bash & Python ━━━━━━━━━━━━━━━━━━ 🔐 Security Operations ━━━━━━━━━━━━━━━━━━ ✅ Vulnerability remediation support ✅ Security hardening & MFA enforcement ✅ Incident response & operational troubleshooting ✅ Malware cleanup & compromised server handling ✅ Infrastructure security baselines ✅ Operational security reviews ✅ ISO27001 / SOC2 / HIPAA operational support ━━━━━━━━━━━━━━━━━━ 🛠️ Platforms & Technologies ━━━━━━━━━━━━━━━━━━ 💻 Linux: Ubuntu • Debian • AlmaLinux • CentOS • RedHat 🌐 Networking: Arista • Cisco Nexus • WireGuard • VPN • VLAN • VRF • A10 Networks 📊 Monitoring: Zabbix • Graylog • SNMP • Syslog • Telemetry ☁️ Cloud: AWS • Cloudflare • DigitalOcean • Linode • Vultr ⚙️ Automation: Bash • Python • REST APIs • Infrastructure Automation ━━━━━━━━━━━━━━━━━━ 🚀 What You Can Expect ━━━━━━━━━━━━━━━━━━ ✅ Clear communication ✅ Production-safe execution ✅ Strong troubleshooting methodology ✅ Clean documentation ✅ Long-term operational stability ✅ Infrastructure-focused solutions ✅ Reliable and professional support I am comfortable working independently, collaborating with internal teams, troubleshooting production incidents, and supporting long-term infrastructure operations across enterprise and MSP environments.

I am a DevOps Engineer and Infrastructure Support Specialist with hands-on experience helping businesses deploy, manage, secure, and maintain reliable production environments. I work with startups, agencies, and businesses to automate deployments, manage servers, optimize cloud infrastructure, and provide long-term technical support for both Linux and Windows environments. My goal is simple: deliver stable, secure, scalable, and production-ready infrastructure that businesses can rely on. What I Can Help You With DevOps & Deployment I can help you deploy and manage applications using Docker, GitHub Actions, CI/CD pipelines, Linux servers, Nginx, SSL setup, monitoring systems, automated deployments, and production-ready workflows. Cloud Infrastructure & Migration I help businesses migrate websites, applications, and services to cloud platforms like AWS, Azure, and VPS servers while maintaining security, uptime, and performance. Linux & Windows Server Administration I provide both Linux and Windows Server management services including: • Windows Server Administration • Active Directory Management • Linux Server Management • Nginx Configuration • SSL Installation & Renewal • VPN Setup & Troubleshooting • Backup & Disaster Recovery • Hyper-V Virtualization • Server Monitoring & Optimization • Infrastructure Troubleshooting • Office 365 & Microsoft 365 Support • NAS/SAN Storage Support Managed Services & Long-Term Support I also provide ongoing infrastructure management and long-term technical support for businesses that need reliable server administration, monitoring, maintenance, troubleshooting, and managed IT services. Whether the work is related to DevOps, cloud infrastructure, Linux servers, or Windows Server environments, I can provide both setup and long-term support professionally. Website Development Support Along with DevOps and server administration, I also develop websites and web applications. If you need a website or web application built in modern technologies, I can help with both development and deployment. I have experience working with: • React.js • Next.js • Node.js • Express.js • MongoDB & MySQL • WordPress & WooCommerce • REST APIs Technical Skills DevOps & Infrastructure: Docker, CI/CD Pipelines, GitHub Actions, Linux, Nginx, SSL, Deployment Automation, Monitoring, Server Optimization Cloud Platforms: AWS EC2, AWS S3, Azure, VPS Hosting, Cloud Migration, Microsoft 365, Azure AD Server Administration: Windows Server, Linux Administration, Active Directory, Hyper-V, VPN, Backup & Disaster Recovery Web Development: React.js, Next.js, Node.js, Express.js, MongoDB, MySQL, WordPress, WooCommerce Why Clients Work With Me Clients work with me because I focus on practical, secure, and reliable solutions. I do not just deploy servers or applications, I make sure systems are optimized, scalable, secure, and easy to maintain long-term. I focus on: • Secure Infrastructure • Reliable Deployments • Fast Communication • Long-Term Support • Performance Optimization • Business-Focused Solutions Whether you need DevOps support, cloud infrastructure setup, Linux or Windows Server administration, deployment automation, managed IT services, or website development, I can help you build and maintain reliable systems professionally. Let’s build secure, scalable, and production-ready infrastructure.

A satisfied client is the goal of my work. I'm seasoned engineer with 20+ years of experience configuring, monitoring, upgrading, and sustaining system hardware, software, and supporting infrastructure. Strong analytical mindset with cross-disciplinary troubleshooting skills for complex, system-level issues. Highly motivated, dependable, and accountable for delivering results. Business before pleasure!