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👋 Hi, I'm Hepshiba Beula, a Networking Engineer with 4+ years of experience specializing in Optical Networks (ONTs & OLTs), VoIP, PBX, Asterisk, Wi-Fi module development, and Network Administration. I have hands-on expertise in embedded systems, networking protocols, and firmware development for high-performance telecommunications solutions. Key Expertise: ✅ ONTs Development & Support – Data flow monitoring, VoIP support, OMCI stack enhancements ✅ Wi-Fi Module Engineering – Performance optimization, debugging, and system enhancements ✅ VoIP Network Enhancements – SIP signaling, VoIP debugging (Asterisk, Wireshark), FXS device integration, FreePBX deployment ✅ Network Administration – VLANs, switch-based configurations, traffic monitoring (Ixia, Spirent) ✅ Embedded Software Development – C programming, Data Structures, Linux-based development ✅ Packet Analysis & Debugging – Deep packet inspection, protocol debugging (Wireshark, Asterisk) ✅ OLT Support – Ensuring seamless integration and maintenance of Optical Line Terminals Professional Experience Highlights: 🔹 Optical Networks (ONT Development & OLT Support) Developed OMCI stack interfaces for ONTs, enabling seamless network provisioning. Worked on PON activation, MIB Upload, and software upgrades for Adtran ONTs. Designed and implemented CFM Protocol on Cortina-based targets. Monitored data flow and ensured VoIP support for ONTs in live network environments. 🔹 Wi-Fi Module Enhancement & Debugging Enhanced and maintained the BGW320 Wi-Fi module for AT&T residential gateways. Debugged and optimized Wi-Fi performance, including network stability and traffic flow. 🔹 VoIP & Network Optimization Implemented VoIP handling in FXS devices (Cortina 6xx, BRCM 8xx, 62x). Debugged VoIP packets using Asterisk, Wireshark, ensuring high call quality. Managed SIP signaling and VoIP enhancements for network efficiency. Has experience in deploying FreePBx on cloud server and configuration of trunk and SIP routing and extension 🔹 Network Configuration & Traffic Analysis Monitored and optimized network traffic using Ixia, Spirent for data packet analysis. Configured VLANs, switches, and network routing for optimal data flow. Tech Stack & Tools: 💻 Languages: C, Python, Shell Scripting 🛠 Tools: Git, JIRA, Bitbucket, Confluence, Perforce, Wireshark, Asterisk, IXIA, Spirent 📡 Platforms: Linux/Unix, Residential Gateways, Optical Line Terminals (OLTs), Optical Network Terminals (ONTs) I am open to networking, IT infrastructure, and embedded systems roles, bringing strong problem-solving skills and expertise in network administration, VoIP, and optical networking solutions. Let’s connect and collaborate! 🚀

I help businesses keep their IT systems, networks, users, and cloud environments secure, reliable, and running smoothly. With hands-on experience supporting business IT infrastructure across remote and multi-office environments, I specialize in network administration, IT support, Microsoft 365, Google Workspace, Windows Server, VPNs, firewalls, routers, switches, DNS, DHCP, and remote troubleshooting. Whether you need ongoing technical support, help resolving a difficult network issue, onboarding/offboarding users, configuring Microsoft 365, or managing your business network, I can step in and get things working efficiently. What I can help you with: • Network Engineering & Administration LAN/WAN configuration and troubleshooting Routers, switches and firewalls VPN configuration and troubleshooting TCP/IP, DNS and DHCP Network monitoring and performance troubleshooting Wi-Fi and connectivity issues Network security and configuration Network documentation and maintenance • IT Support & System Administration Windows and macOS troubleshooting Hardware and software support Remote desktop support User account and access management New employee onboarding/offboarding System troubleshooting and maintenance Server monitoring and administration IT asset and endpoint support • Microsoft 365 Administration Microsoft 365 Admin Center Exchange Online Outlook and email troubleshooting User and mailbox administration Microsoft 365 onboarding/offboarding Domain and DNS configuration Email delivery and authentication troubleshooting Security and access configuration • Google Workspace Administration Gmail administration User and account management Google Workspace onboarding/offboarding Domain configuration Email routing and troubleshooting Workspace security and access management • Windows Server & Virtualization Windows Server administration Active Directory support DNS/DHCP Server troubleshooting Hyper-V VMware Remote server support I currently support business IT environments and have experience working with infrastructure serving India and US operations, including remote network and Microsoft 365 administration. My approach is simple: understand the problem, identify the root cause, fix it properly, and document the solution when needed. I'm comfortable working on both one-time technical issues and ongoing as-needed IT support, making me a good fit for small businesses that don't need a full-time IT administrator but need an experienced engineer they can rely on. If you need a reliable Network Engineer or IT Support Engineer who can troubleshoot remotely and take ownership of technical problems, let's discuss your requirements.

Technology should make your work easier, not harder. I help teams cut through IT headaches with clear solutions and dependable support, backed by 10+ years of hands‑on experience in Microsoft 365 and cloud platforms. I specialize in supporting startups and small teams who don’t have a full-time IT department. Whether it’s troubleshooting, supporting, or migrating to the cloud, I provide solutions that keep costs predictable and downtime minimal. Clients appreciate my clear communication and proactive approach — I don’t just fix problems, I help prevent them. I’m certified in AZ‑104 (Azure Administrator), MS‑102 (Microsoft 365 Administrator), and MCP (Microsoft Certified Professional), which means I bring both proven technical expertise and a client-first mindset to every project. If you’re looking for dependable IT support without the overhead, I’d be glad to help.

Need an experienced Microsoft 365 engineer who can jump into your MSP environment, resolve tickets quickly, and communicate professionally with end users? I currently support U.S.-based businesses, handling Microsoft 365 administration, Exchange Online, Entra ID, Intune, Azure, VPN, and Windows support in an SLA-driven MSP environment. I have hands-on experience supporting Microsoft 365 environments, assisting end users, and resolving technical issues across Exchange Online, Entra ID, Intune, Azure, and Windows systems. Microsoft 365 Administration ✔ User onboarding & offboarding ✔ License assignment & management ✔ Shared mailbox management ✔ Mailbox permissions & delegate access ✔ Distribution Lists & Microsoft 365 Groups ✔ Password resets & MFA troubleshooting ✔ User provisioning & deprovisioning Exchange Online ✔ Message Trace ✔ Mail flow troubleshooting ✔ Spam & phishing investigations ✔ Quarantine management ✔ Email forwarding & mailbox configuration ✔ Outlook & Exchange troubleshooting Entra ID (Azure AD) ✔ User & Group Management ✔ MFA configuration & reset ✔ Identity troubleshooting ✔ Access management ✔ Conditional Access (basic support) Intune & Endpoint Support ✔ Device enrollment ✔ Device compliance troubleshooting ✔ Windows device management ✔ Endpoint support Azure & Infrastructure ✔ Azure VM basic administration ✔ VPN connectivity troubleshooting ✔ DNS & DHCP troubleshooting ✔ Windows administration PowerShell ✔ Microsoft 365 administrative tasks ✔ Exchange Online PowerShell ✔ User management automation MSP Helpdesk Support ✔ Remote troubleshooting for end users ✔ Ticket management & documentation ✔ SLA-focused support ✔ Escalation when required ✔ Root cause investigation ✔ Clear communication with users and clients Tools & Technologies Microsoft 365 • Exchange Online • Entra ID • Intune • Azure • PowerShell • Windows Server • VPN • NinjaOne • Microsoft Defender • Outlook • Teams • SharePoint I believe great IT support isn't just about closing tickets—it's about solving problems correctly, communicating clearly, and preventing the same issues from happening again. If you're looking for a dependable Microsoft 365 Support Engineer who can become a valuable part of your MSP or internal IT team, I'd be happy to discuss your project. Availability ✔ Comfortable working US & UK business hours ✔ Available for long-term contracts ✔ Quick response time ✔ Professional communication ✔ Ready for trial tasks or ongoing support

Hi, I'm a dedicated Cisco Certified Network Engineer with CCNA and CCNP certifications, specializing in designing, implementing, optimizing, and troubleshooting robust enterprise and SMB networks.With hands-on experience in Cisco routing and switching technologies, I help businesses build secure, scalable, and high-performance network infrastructures that minimize downtime and support business growth. Whether you need a new network deployment, migration to SD-WAN, firewall configuration, VPN setup, or ongoing network support, I deliver reliable solutions tailored to your requirements.What I Offer:Network Design & Implementation: LAN/WAN/MAN design, VLANs, inter-VLAN routing, STP, EtherChannel, and advanced routing protocols (OSPF, EIGRP, BGP) Cisco Infrastructure: Configuration and management of Cisco routers, switches (Catalyst, Nexus), wireless controllers (WLC), and Meraki devices Security & Firewalls: Cisco ASA, Firepower, ACLs, VPN (Site-to-Site & Remote Access), and network security best practices Troubleshooting & Optimization: Rapid diagnosis and resolution of complex network issues, performance tuning, and QoS implementation Automation & Monitoring: Basic network automation with Python and Ansible, plus tools like SolarWinds, PRTG, and Cisco DNA Center I am passionate about delivering zero-downtime migrations, enhancing network security, and reducing operational costs through efficient designs. Previous projects include full network overhauls that improved uptime to 99.99% and reduced latency significantly.I'm available for short-term gigs, long-term support contracts, or one-time consulting projects. Let's discuss how I can help strengthen your network infrastructure — feel free to message me with your requirements!Certifications:Cisco Certified Network Associate (CCNA) Cisco Certified Network Professional (CCNP) – Enterprise Key Skills: Cisco CCNA, CCNP, Routing & Switching, BGP, OSPF, EIGRP, VLAN, VPN, Firewall, Network Security, SD-WAN, Packet Tracer, GNS3, Wireshark

With 10+ years in network infrastructure and security, I help businesses resolve the issues that stop daily operations: failed VPNs, blocked firewall traffic, unstable branches, cloud connectivity and VoIP/SIP problems. My focus is simple: find the actual root cause, restore services with minimum disruption, and avoid risky trial-and-error changes on a live network. I have supported enterprise, government, data centre and multi-site business networks using Fortinet, Cisco and other leading firewall platforms, with hybrid connectivity across AWS, Microsoft Azure and Google Cloud. My "Zero-Risk" Methodology Many engineers rely on "guess and check" troubleshooting. I don't. I never make blind changes on a live production network. Before altering your setup, I map your current design, analyze your routing, and review firewall policies. I always pull backups, engineer a rollback plan, and execute controlled, fully documented changes. My goal is permanent stability, not temporary patches. Core Expertise & Outcomes Delivered: Firewall & Threat Management: FortiGate, Cisco, UniFi, and MikroTik. (Comprehensive policy audits, legacy rule cleanup, and strict hardening). Complex VPN Troubleshooting: Site-to-Site, Remote-Access, IPsec, and SSL VPNs. If your tunnel is unstable or failing, I will stabilize it. Cloud & Hybrid Infrastructure: AWS (VPC, Security Groups), Microsoft Azure (VNet, VPN Gateway, NSG), and Google Cloud. I build secure, seamless office-to-cloud and cloud-to-cloud bridges. VoIP/SIP Optimization: Resolving SIP registration failures, NAT traversal bugs, one-way audio, and call drops using precise QoS, Voice VLANs, and Cisco CUBE support. Advanced Routing & Switching: SD-WAN deployments, dual-ISP failover, VLANs, and comprehensive LAN/WAN/Wi-Fi troubleshooting. How We Can Partner: Emergency Troubleshooting: Rapid isolation and resolution of critical connectivity, routing, or security failures affecting your users. Network Health & Security Audits: Deep-dive reviews to identify vulnerabilities, clean up messy configurations, and provide actionable security roadmaps. Infrastructure Setups & Migrations: End-to-end planning for new branch offices, secure remote work environments, and physical security networks (CCTV/Biometrics). Retained Network Support: Dependable, on-demand escalation support for internal IT teams, MSPs, software companies, and business owners. My core technical experience includes: • FortiGate configuration, migration and troubleshooting • Cisco routers, switches, Firewall, Firepower, Voice Gateway and CUBE • Fortigate, Fortinet, Mikrotik, • IPsec, SSL and remote-access VPNs • Site-to-site VPN and multi-site connectivity • SD-WAN, dual-ISP failover and policy-based routing • VLANs, routing, NAT, DHCP, DNS and LAN/WAN troubleshooting • Firewall policy review, cleanup and security hardening • Wi-Fi, office connectivity and branch network support • AWS VPC, routing, security groups, VPN and hybrid access • Azure VNet, NSG, VPN Gateway, peering and hybrid connectivity • Google Cloud VPC, firewall rules, VPN and network access • SIP, NAT traversal, RTP, one-way audio and call-drop issues • Voice VLANs, QoS and firewall policies for voice traffic • Network diagrams, documentation and handover notes Where access permits, I take a backup, confirm the rollback plan, make controlled changes, test the traffic flow and document the result. This is especially important on production firewalls, remote branches, VPN tunnels and voice networks, where one quick change can affect another service. Let’s Secure Your Network Whether you need a one-time emergency fix, a comprehensive security audit, or ongoing support, I am here to help. Please share: Your primary firewall/hardware vendor and model. The exact issue or project scope (and any recent changes made). The number of sites or users affected. Once I understand your exact setup and the business impact, I will provide a clear, safe plan of action to get your network running flawlessly.