Indranil Biswas
17 Years of Experience

Indranil Biswas

Networks, Cloud & DevOps Engineer

Delivering enterprise-scale infrastructure solutions across Cisco, Juniper, cloud platforms, and automation. Proven expertise in designing and migrating large-scale environments, implementing high availability, and leading cross-functional teams to deliver secure, scalable, and cost-effective solutions.

View Experience Skills & Expertise




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About Me

Professional Summary

Networks, Cloud and DevOps Engineer with 17+ years of experience delivering enterprise-scale infrastructure solutions across Cisco, Juniper, cloud platforms, and automation. Proven expertise in designing and migrating large-scale Cisco Catalyst & Nexus environments, implementing high availability, and optimizing critical cutovers. Skilled in Azure and AWS cloud, with strong automation experience in Terraform and Python. Recognized for reducing downtime, accelerating deployments, and leading cross-functional teams to deliver secure, scalable, and cost-effective solutions.


Career Journey

Professional Experience

17 years of delivering enterprise networking and cloud solutions at Telstra

Network Specialist

July 2024 - Present 📍 Telstra (via Infosys Ltd) • Melbourne, Australia
  • Configured and troubleshot Cisco Catalyst & Nexus, and Juniper routers/switches, ensuring network resilience and scalability
  • Implemented VLANs, VRFs, inter-VLAN routing, and First Hop Redundancy Protocols (HSRP/VRRP)
  • Optimized redundancy with RSTP and ensured seamless failover
  • Designed and deployed BGP and OSPF routing for internal and external connectivity
  • Led migration of 3000+ links from 28 Cisco Catalyst devices to Nexus, reducing downtime to less than 15 mins
  • Built and tested lab topologies (cabling, device interconnections, failover testing) to validate production cutovers
  • Collaborated with vendors/consultants to deliver cost-efficient and robust networking solutions

DevOps and Network Team Lead

January 2020 - June 2024 📍 Telstra (via Infosys Ltd) • Melbourne, Australia
  • Led a team of 10 engineers across networking and DevOps initiatives
  • Designed and managed Cisco and Juniper configs supporting Telstra O2A applications
  • Delivered secure connectivity via VPNs, ACLs, DNS, and Load Balancers
  • Automated Cisco device configurations using Python & Ansible, reducing manual effort by 60%
  • Integrated CI/CD pipelines (GitHub Actions, Bamboo), cutting deployment times by 40%
  • Performed lab simulations of routing scenarios (BGP/OSPF/HSRP) prior to live deployments

Control Plane Engineering Team

May 2015 - December 2019 📍 Telstra (via Infosys Ltd) • Melbourne, Australia
  • Migrated legacy infrastructure into VMware-based virtual environments
  • Performed DNS configurations, Linux OS builds, and patching
  • Automated routine tasks using Perl, Shell, and Python, boosting efficiency
  • Partnered with developers/testers to ensure network reliability and app performance

TID and EPIC Team

April 2008 - April 2015 📍 Telstra (via Infosys Ltd) • Bangalore, India & Melbourne, Australia
  • Designed and supported networking and VMware-based enterprise solutions
  • Resolved infrastructure/network incidents, ensuring high uptime
  • Improved deployment speed with automation scripts
  • Delivered proactive performance monitoring and security updates

Technical Expertise

Core Skills

Comprehensive expertise across networking, cloud, and automation

🌐

Networking

  • LANs, VRFs, Inter-VLAN Routing
  • FHRP (HSRP, VRRP, GLBP)
  • STP/RSTP
  • Cisco IOS and NX-OS Configuration
  • Juniper JUNOS Configuration
  • Routing Protocols (BGP, OSPF, IS-IS, EIGRP)
  • VPNs (IPSec, GRE, SSL)
  • DNS, DHCP, NAT, ACLs
  • Load Balancing, MPLS, QoS
  • SDN, Cisco WLC
☁️

Cloud Platforms

  • Microsoft Azure (VMs, Functions, Storage)
  • Azure App Services
  • AWS (EC2, Lambda, RDS)
  • VMware vSphere
  • Kubernetes (K8s)
  • Docker Containers
⚙️

DevOps & Automation

  • GitHub Actions
  • Bamboo, Jenkins
  • Python Scripting
  • Ansible Automation
  • PowerShell, Bash
  • Terraform, Pulumi
  • Git, GitHub, GitLab
  • CI/CD Pipelines
💻

Systems & Monitoring

  • Linux OS Administration
  • Linux System Builds
  • CI/CD Pipeline Implementation
  • Performance Monitoring
  • Infrastructure Automation

Credentials

Certifications

Professional certifications and ongoing learning

🌐
CCNA (Cisco Certified Network Associate)
Certified • September 2025
🌐
JNCIA (Juniper Networks Certified Associate)
Certified • January 2026
☁️
Azure Fundamentals AZ-900
Certified • February 2025
☁️
AWS Certified Cloud Practitioner
In Progress
⚙️
HashiCorp Certified: Terraform Associate
In Progress

Education

Academic Background

🎓

Bachelor of Technology (B.Tech)

Graduated 2007

Major: Electronics & Communications Engineering

Sikkim Manipal Institute of Technology • Sikkim, India


Communication

Languages

🗣️

English

Professional Proficiency

🗣️

Bengali

Native Speaker

🗣️

Hindi

Fluent