Md Ahmad

Manager Technical

Link3 Technologies Limited • Full-time

May 2007 - Present • 19 yrs

Network Engineer / Network Security Specialist – Enterprise & ISP We are seeking an experienced Network Engineer / Network Security Specialist with 18+ years of hands-on expertise in designing, securing, and maintaining mission-critical network infrastructures for Enterprise and ISP environments. The ideal candidate has deep knowledge of advanced routing, scalable architectures, and network security, and is capable of handling both strategic design and urgent troubleshooting with confidence. Key Responsibilities: Design, implement, and secure high-availability network infrastructures Troubleshoot and resolve complex routing issues involving BGP, OSPF, MPLS, VPLS, ISIS Configure and optimize VPN solutions (GRE, IPSec, Site-to-Site, Remote Access) Identify and mitigate security vulnerabilities; deploy and harden firewall solutions Diagnose performance bottlenecks, latency, packet loss, and instability Configure, maintain, and optimize Cisco, Juniper, and MikroTik network devices Ensure maximum uptime, resilience, and future-proof scalability Provide clear documentation and communicate effectively with stakeholders Qualifications: 18+ years of proven experience in Enterprise and ISP networking Certifications: CCNP, JNCIA, MTCRE, CCNA Strong expertise in mission-critical, high-availability environments Ability to work independently and deliver reliable solutions under pressure What We Offer: End-to-end network solutions: from strategic planning to emergency recovery Fast response, clear communication, and globally tailored solutions Support for businesses across US, UK, CA, and EU markets If you are tired of downtime, slow networks, or security concerns, this role focuses on building stable, secure, and high-performance network foundations that let businesses operate with confidence and scale without limits.