🚀 Senior Network Analyst | Aspiring DevOps & Cloud Engineer
🌐 Networking • ☁️ Cloud • 🔐 Security • ⚙️ DevOps
📍 Kolkata, India | 📧 mahatomithun3@gmail.com
I am a Senior Network Analyst with 6+ years of enterprise experience, currently evolving into DevOps, Cloud, and Network Security engineering roles. My core strength lies in building reliable, secure, and scalable infrastructure across on-prem and cloud Network environments.
I work extensively with WAN, SD-WAN, routing & switching, firewalls, and network monitoring, while actively upskilling in cloud platforms, automation, and DevOps practices.
I enjoy solving production issues, improving system reliability, and bridging the gap between networking, cloud, and security teams.
HCLTech | Oct 2019 – Present
- Supported global enterprise network environments with high availability and security requirements
- Managed WAN, LAN, Wireless, and SD-WAN operations
- Collaborated with ISPs, cloud teams, and service delivery managers to resolve incidents
- Maintained accurate TCP/IP, subnetting, and network documentation
- Monitored and optimized network performance and utilization
- Responded to critical outages, on-call escalations, and security-impacting incidents
- Hands-on experience with Cisco,and Fortinet devices
- Followed ITIL-based Incident, Problem, and Change Management
- Ensured compliance with network security and change control policies
- Azure | AWS | GCP
- Virtual Networks, Subnets, Routing
- Cloud Security fundamentals
- Hybrid networking (On-prem ↔ Cloud)
- CI/CD fundamentals
- Infrastructure reliability & monitoring
- Exposure to cloud-native architectures
- PRTG – Network & infrastructure monitoring
- Performance baselining & alerting
- Incident response & root cause analysis (RCA)
- Firewall configuration & troubleshooting
(Fortinet) - Network security principles
- Zscaler secure access technologies
- Secure remote access & enterprise connectivity
- Traffic analysis & access control
- Change control & security compliance
- Routing & Switching (CCNA)
- TCP/IP, VLANs, STP, HSRP
- LAN / WAN / Wireless
- SD-WAN
- ISP coordination & enterprise connectivity
- PRTG
- Cisco DNAC
- Cisco WLC
- FortiAnalyzer
- ServiceNow
- PuTTY
- Operating Systems:Linux, Windows, macOS
- Zscaler
🎓 B.Tech in Electronics and Communication Engineering
Dr. Sudhir Chandra Sur Degree Engineering College, Kolkata
2015 – 2019
🏅 Achievers League Award – HCLTech
Recognized for consistent performance and contribution to global projects
- English
- Bengali
- Hindi
- 📘 Advanced Cloud Networking (Azure / AWS/GCP)
- 🔐 Cloud Security & Zero Trust Architecture
- 📘 Network automation & DevNet
- 📘 Cloud & Network Security (Zero Trust)
- ⚙️ Infrastructure Automation
- 📊 SRE & Observability Practices
- 💼 📫 Connect with me on LinkedIn
- 📧 Email: mahatomithun3@gmail.com
⭐ Always learning. Always improving. Let’s build secure and scalable systems.