𝗪𝗲𝗯𝘀𝗶𝘁𝗲 𝗵𝗮𝗰𝗸𝗲𝗱? 𝗠𝟯𝟲𝟱 𝘁𝗲𝗻𝗮𝗻𝘁 𝗻𝗲𝘃𝗲𝗿 𝗮𝘂𝗱𝗶𝘁𝗲𝗱? 𝗦𝗲𝗿𝘃𝗲𝗿 𝗻𝗼𝗯𝗼𝗱𝘆 𝗵𝗮𝗿𝗱𝗲𝗻𝗲𝗱? 𝗜 𝗳𝗶𝗻𝗱 𝗶𝘁, 𝗳𝗶𝘅 𝗶𝘁, 𝗮𝗻𝗱 𝗵𝗮𝗻𝗱 𝘆𝗼𝘂 𝘁𝗵𝗲 𝗿𝗲𝗽𝗼𝗿𝘁 𝘁𝗵𝗮𝘁 𝗽𝗿𝗼𝘃𝗲𝘀 𝗶𝘁.
Your site is redirecting to spam. Your tenant has gaps nobody has checked. Your server was deployed and never hardened. Or your team needs IT support that answers the same day, not a ticket that sits for three days.
I cover all of it - Microsoft 365, cloud, websites and networks - plus the hands-on IT support that keeps everything running.
𝗪𝗛𝗔𝗧 𝗜 𝗗𝗢
🛡️ SECURITY AUDITS & COMPLIANCE — from $99
✅ IT security audits and vulnerability assessments (OWASP Top 10, CVSS scored) — findings ranked by business risk, not scanner noise
✅ Risk registers mapped to NIST CSF and ISO 27001 Annex A controls — so your auditor accepts the report instead of sending it back
✅ SOC 2 and ISO 27001 gap assessments, policy suites, audit readiness
✅ Security questionnaires and vendor due diligence completed for you — off your desk in days, not weeks
☁️ MICROSOFT 365 & CLOUD SECURITY — from $129
✅ M365 tenant audit: MFA, Conditional Access, legacy auth, admin roles
✅ Email security: SPF, DKIM, DMARC, anti-phishing, forwarding rules — business email compromise is how most SMEs actually lose money
✅ Microsoft Secure Score review and measurable improvement — the sample report in my portfolio takes a tenant from 38% to 85%
✅ AWS EC2 and Linux VPS hardening: SSH, firewall, Fail2ban, tested backups — I restore your backup while you watch, so you know it works
🌐 WEB & NETWORK SECURITY — from $99
✅ Website malware removal, hack cleanup, Google blacklist recovery
✅ Root-cause log analysis — I find how they got in, not just what they left — cleanup without this gets you reinfected within a week
✅ Website hardening: WAF, 2FA, security headers, file permissions
✅ Network security: firewalls, VPNs, segmentation
🖥️ REMOTE IT SUPPORT & M365 HELPDESK — from $99
✅ Mailbox, permissions, licence and account issues
✅ Employee onboarding and secure offboarding (access revoked and verified) — so a leaver can't still reach your data three months later
✅ Password and MFA lockouts, devices, VPN, Teams and SharePoint
✅ Ongoing support for teams with no in-house IT
⚙️ LINUX & SERVER ADMINISTRATION
✅ Ubuntu, Debian, CentOS, Rocky, Amazon Linux
✅ Nginx and Apache hardening, TLS, automated off-site backups with restore tests
🚨 SOC, SIEM & THREAT HUNTING — from $129
✅ Real-time SIEM monitoring and log analysis (Splunk, Elastic)
✅ Active threat hunting and alert triage mapped to the MITRE ATT&CK framework
✅ Phishing and Business Email Compromise (BEC) investigations
✅ Forensic-grade network traffic analysis with Wireshark/TShark
🎓 CERTIFICATIONS
✔️ CompTIA Security+ (SY0-701)
✔️ Microsoft Certified: Security, Compliance and Identity Fundamentals (SC-900)
✔️ Microsoft Cybersecurity Analyst Professional
✔️ Google Cybersecurity Professional Certificate
✔️ Google IT Support Professional Certificate
𝗛𝗢𝗪 𝗜𝗧 𝗪𝗢𝗥𝗞𝗦
1️⃣ Free scoping
Tell me what's happening. I review it and tell you what's actually wrong, in plain English, at no charge. Scoping is free; the work isn't.
2️⃣ Fixed plan and price
Exact deliverables, timeline and cost before anything starts. No scope creep.
3️⃣ Hands-on fix
I do the work myself — cleanup, hardening, configuration, audit or support — with progress updates so you're never left guessing.
4️⃣ Verification
I prove it worked: malware gone, Secure Score re-scored, restore tested, findings retested. Then I walk you through what changed and why.
5️⃣ Ongoing support (optional)
Monthly monitoring, IT helpdesk, or periodic security check-ins so the problem doesn't quietly come back.
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗛𝗜𝗥𝗘 𝗠𝗘
🎯 One person across security, cloud, M365 and IT support — no coordination overhead between three freelancers who blame each other.
🔍 Honest scoping. If your auditor requires a manual penetration test with OSCP or CREST credentials, I'll tell you before you hire me, not after.
📄 Reports you can send onward — executive summary for leadership, technical detail with reproduction steps for your engineers.
🌏 Based in Bangladesh, working reliable overlap with UK, US and AUS hours.
𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗖𝗔𝗡 𝗩𝗘𝗥𝗜𝗙𝗬 𝗥𝗜𝗚𝗛𝗧 𝗡𝗢𝗪
Every certificate on this profile links to its issuer's verification page — click any of them. And my portfolio has a sample deliverable from each service: a Microsoft 365 audit report, a risk register with CVSS scoring, and a server hardening checklist with before and after Lynis scores. Read the work before you hire me, not after.
💬 Message me with what's happening — a hacked site, a tenant nobody has audited, a server nobody hardened, or a team with no IT cover. I'll reply the same business day with what's actually wrong and what it takes to fix it. Scoping costs nothing and puts you under no obligation to hire me.
Information Security
Vulnerability Assessment
Network Security
Information Security Audit
ISO 27001
Microsoft Azure
Office 365
Cloud Security
Amazon Web Services
IT Support
Linux System Administration
NIST Cybersecurity Framework
Security Assessment & Testing
Compliance
Microsoft Endpoint Manager
Email Security
Google Workspace Administration
Threat Detection
Incident Response Plan
Security Operation Center
Tasnimul S.
Gulshan, Bangladesh
$20/hr
5.0
7 jobs
Welcome! If you're looking for an experienced IT specialist who can configure Juniper, Cisco, Ubiquiti, Huawei, Mikrotik routers and set up NMS servers, and troubleshoot server issues, your search ends here!
With 6 years of industry expertise, specializing in network infrastructure and NMS server configuration, I provide a comprehensive range of services.
MY SERVICE PROVIDE :
------------------------------------
➤ Configure Routers (Cisco, Ubiquiti, Juniper, Mikrotik, Huawei & Vyos)
➤ Troubleshoot Network issues & Global Routing solution)
➤ Various tunnel configurations (EoiP, IPIP, GRE, IPsec, VRF, PPTP, L2TP, IKEv2 VPN, PPPoE, and VPLS.)
➤ Public IPv4 & IPv6 planning, advertising and configure failover & load balancing
➤ NMS server setup (PRTG, MRTG, LIBRA etc)
➤ Server Maintenance
➤ Routers scripting, Auto Backup, Schedule Backup
WHY CHOOSE ME :
------------------------------------
➤ Fully genuine and professional
➤ Work Fast and Easy Communication
➤ Unlimited revisions
➤ Future support
➤ High Quality
Work will be delivered on time and in the best quality as per your requirements. Please feel free
to discuss the requirements and after being satisfied please award me with the work.
Thanks & Regards,
T H Shaon
Network Administration
MikroTik
MikroTik RouterOS
Juniper
Network Engineering
Cisco
Graph
Mikrotik RouterBOARD
Computer Network
Computing & Networking
Cisco Router
IT Consultation
IT Support
Network Monitoring
Huawei AR
Sajib P.
Dhaka, Bangladesh
$25/hr
5.0
3 jobs
I have over 12+ Years of working experience in the Networking Field.
I am an enthusiastic NETWORK ENGINEER with the necessary drive and determination needed to resolve complex networking issues. Possessing effective organizational skills and excellent working knowledge of networking technologies and having a commitment to keep up to date with the latest developments. I’m an adaptable and efficient team player with excellent communication skills at all levels. Experienced in providing motivation, guidance, and an up-to-date networking consultancy service to clients.
Now looking for a new and challenging network engineering task that will make the best use of my existing skills and experience and also further my career as a freelancer.
Technical Skill Set Summary::::::::
• Cisco routers / switches / WLC
• Cisco ASA / FTD / ISE / FMC
• Cisco NX-OS
• Network Automation using Python3
• Checkpoint Firewall & Endpoint Security
• Sophos XG Firewall & Intercept X with advance EDR
• Gateway Redundancy Protocols: HSRP / VRRP / GLBP
• Routing: RIPng / OSPF / EIGRP / BGP / PBR / PfR / VRF
• VLANs / STP / RSTP / Ether channel (LAG)
• VPNs – GRE / IPSec / DMVPN
• LAN-WAN / NAT / ACL
• IPv4 / IPv6
• F5 Load Balancer
• SIEM-Splunk, Qradar, Wazhu, Suricata, Elastic
• Juniper Junos
• Palo Alto Next-Generation Firewall
• Fortinet Solutions- FortiGate Firewall, FortiMail email gateway, and FortiAnalyzer.
• Juniper firewalls SRX Series
• TCP/IP, DNS, DHCP
• Wireshark
• MikroTik
• Virtualization: VMware vSphere 6.x
• Windows Server 2012 R2
Qualifications:
• Cisco Certified Specialist - Security Core (CCNP SCOR-350-701)
• Cisco Certified Network Associate (CCNA-R&S)
• Palo Alto Networks Certified Network Security Engineer (PCNSE)
• APPLICATION DELIVERY FUNDAMENTALS (F5-101)
• Fortinet Network Security Expert (NSE 1, NSE 2, NSE 3 & NSE 4)
• JNCIA-SEC (JNCIA-SEC)
• Junos (JNCIA-Junos)
Cisco
Cisco IOS
Cisco Firepower Threat Defense
MikroTik
Firewall
FortiGate Firewall
Palo Alto Firewalls
Network Security
Cisco Router
PfSense
Fortinet
VPN
Network Design
Cisco ASA
Router
MikroTik RouterOS
F5, Inc.
Cisco Certified Network Professional
Cisco ISE
Md. S.
Dhaka, Bangladesh
$30/hr
4.6
15 jobs
With over 8+ years of hands-on experience in the Core Data & Telecommunications industries, I specialize in Data/IP Networks, MPLS & network security. My expertise is in Design & Planning Network implementation, troubleshooting, Network administration, IT related solutions & managing large-scale service provider networks.
With a specialized focus on Social Media Integration services, I bring over 8+ years of hands-on experience in the field.
Network Engineering
Network Administration
Network Analysis
Hardware Troubleshooting
Juniper
MikroTik
MikroTik RouterOS
Mikrotik RouterBOARD
Huawei AR
Network Security
Computer Network
Firewall
VPN
Ubiquiti
Network Planning
Network Monitoring
Network Traffic Analysis
Wireless Network Implementation
Router
Cisco Router
Arefin I.
Dhaka, Bangladesh
$20/hr
5.0
52 jobs
Technical Security Expertise:
- Vulnerability Assessment and Penetration Testing (Nessus, OpenVAS, Acunetix)
- Security Operations (Wazuh XDR & SIEM, AzureAD PAM & DLP, Darktrace NDR & EDR)
- FortiADC Load balancer with WAF & Barracuda Email Security Gateway.
- Network Security (FortiGate Firewall, Cisco FTD)
- Backup and Recovery (Veeam, Azure Site Recovery, Symantec Backup Exec, DPM)
Cloud Expertise:
- Architected and supported secure, scalable cloud solutions across AWS and Oracle Cloud Infrastructure (OCI) using core compute, networking, storage, and IAM services.
- Designed and implemented multicloud architectures (AWS–OCI) with secure VPN/IPSec connectivity, workload optimization, and high availability.
- Applied cloud security best practices, including IAM least privilege, network segmentation, encryption, logging, and compliance aligned with CIS benchmarks.
- Optimized performance, availability, and cost through capacity planning, monitoring, automation (IaC concepts), and cloud best-practice frameworks.
System Administration:
- Active Directory, Group Policy, Exchange Hybrid (On-Prem & O365)
- VMware VCenter, Citrix XenDesktop, Postfix Email Gateway, Squid Proxy
- SCCM Auto push installation & MDT (Microsoft Deployment Toolkit)
Automation and Tools:
- Powershell, Scripting (Python), Docker (Guacamole, BookStack)
- JIRA, Freshdesk Ticketing System, RD Web for remote platform
Soft Skills:
- Leadership and Team Management
- Meticulous Reporting and Documentation
- Cross-functional Collaboration
Network Administration
Microsoft Outlook
Citrix Hypervisor
Microsoft Azure
VMware ESX Server
Windows Server
Office 365
System Administration
Microsoft Exchange Server
Linux System Administration
Remote IT Management
Helpdesk
Cisco Certified Network Associate
Microsoft SCCM
Virtual Private Server
Technical Support
Sorna K.
Dhaka, Bangladesh
$25/hr
5.0
1 jobs
Hello! I’m Sorna Kundu, Manager of Network & Systems Engineering, with over 13+ years of professional experience in the Internet Service Provider (ISP) and Telecom sectors. I specialize in designing, implementing, and operating secure, scalable, and high-availability network and server infrastructures for enterprise and service-provider environments.
My expertise covers:
Network Infrastructure – Advanced routing & switching using Cisco, Juniper, MikroTik, F5, Firewalls, and Cisco APIC (ACI) in complex production networks.
Core Networking Technologies – Deep hands-on experience with TCP/IP, OSPF, BGP, MPLS, Traffic Engineering, L2VPN, L3VPN, routing policies, and QoS.
VPN & Secure Connectivity – Site-to-Site VPN, Remote Access VPN, IPsec, and GRE over IPsec for secure and reliable inter-site communication.
Server & Systems Engineering – Linux system administration (Ubuntu, CentOS, Debian), server deployment, DNS, DHCP, Web, Mail, and Database services, virtualization (VMware, Proxmox), storage, monitoring, backup, and high-availability solutions.
Operations & Troubleshooting – End-to-end network and server troubleshooting, performance optimization, migration, and 24/7 production support.
I have also worked on top OTT platforms in Bangladesh, including Toffee, T Sports, and Binge, where I supported high-traffic, low-latency streaming infrastructures serving millions of users. My role focused on ensuring service availability, scalability, and performance during peak viewership.
Why Work With Me:
✅ End-to-end expertise in both network and server infrastructure
✅ Hands-on experience supporting OTT platforms at a million-user scale
✅ Expert troubleshooting and root-cause analysis
✅ Production-ready designs, not lab-only solutions
✅ Clear communication and professional delivery
Network Engineering
Juniper
MikroTik
VPN
Computing & Networking
Cisco ACI
Cisco Router
F5, Inc.
Firewall
Huawei AR
Linux System Administration
Storage Device
Server Virtualization
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