CISCO IOS ▲ ACTIVE NETWORK UPTIME 99.9% JUNIPER CERTIFIED ✓ VERIFIED AZURE NETWORK CERTIFIED FORTIGATE FW ▲ ONLINE BGP ROUTES STABLE IOT / BLE ▲ READY VPC FLOW MONITORING HOME AUTOMATION DEPLOYED NETWORK SECURITY HARDENED CISCO IOS ▲ ACTIVE NETWORK UPTIME 99.9%
// Network Engineer · Cloud · Software

RANJEET KUMAR

Network Engineering  |  Cloud Architecture  |  Software Automation

Forward-thinking engineer delivering enterprise network designs, Azure cloud solutions, and software automation for mission-critical environments.

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01 / Profile

About Me

🌐
NETWORK OPERATOR

I'm a Network Engineer at Hitachi Systems India Pvt Ltd, Bangalore — a forward-thinking professional skilled in infrastructure design, automation, and cross-functional collaboration.

My experience includes enterprise network operations across Cisco, Juniper, and HP/Aruba platforms, plus Azure cloud networking and IoT software projects for Samsung ARTIK and Raspberry Pi.

I bring precision, documentation discipline, and operational resilience to every engagement. I specialise in HLD/LLD design, incident response, and scalable network automation.

Cisco Juniper Azure Fortigate NOC IoT Linux HLD / LLD
02 / Capabilities

Core Skills

🔌
Network Engineering
Cisco Routing & Switching92%
Juniper Networks85%
Aruba Switching88%
VPC & IP Design84%
☁️
Cloud & Security
Azure Networking88%
Fortigate Firewall82%
Security Hardening80%
Monitoring85%
💻
Software Engineering
Shell & Automation85%
Linux Admin88%
App Development82%
IoT Protocols80%
🗺️
Documentation & NOC
HLD / LLD90%
Incident Response88%
Root Cause85%
Vendor Ops87%
03 / History

Work Experience

Dec 2020 – Present// Full-Time · Senior Role
Network Engineer
Hitachi Systems India Pvt Ltd — Bangalore
  • Delivered enterprise network operations for switches, routers, and high-availability systems with continuous uptime focus.
  • Managed end-to-end incident response, troubleshooting, and escalation workflows to minimize MTTR.
  • Designed route-based IP network solutions and commissioned production-ready infrastructure.
  • Troubleshot Cisco, Juniper, and Aruba platforms at scale across software, hardware, and communications layers.
  • Monitored network capacity and performance metrics to identify and fix bottlenecks before impact.
  • Collaborated with vendors for performance optimisation and hardware lifecycle planning.
  • Authored operational runbooks, diagrams, and documentation for mission-critical teams.
Dec 2020 – Mar 2021// Contract · Network Build
Network Build Engineer
NPCI — Hyderabad
  • Implemented Cisco, Aruba, and Fortigate systems for NPCI production environments under strict SLA requirements.
  • Produced HLD and LLD diagrams for Ambattur and Hyderabad data centre designs.
  • Configured routing, VLAN, and security policy architecture for high-security payment infrastructure.
  • Collaborated with cross-functional teams to deliver a resilient, compliant enterprise network.
Apr 2017 – Apr 2020// Full-Time · Software Engineering
Software Engineer
Global Edge Software Pvt Ltd — Bangalore
  • Delivered scalable applications for enterprise data extraction, analysis, and indexing solutions.
  • Built automation scripts that eliminated manual work and improved operational efficiency.
  • Led a team of 6 engineers, driving delivery and mentoring technical talent.
  • Built BLE and IoT solutions on Samsung ARTIK and Raspberry Pi platforms.
  • Modernised legacy systems and reduced operational costs by 50% through refactoring.
04 / Credentials

Certifications & Education

🏅
CCNA
Cisco Systems
🔷
JNCIA
Juniper Networks
☁️
Azure Network Engineer Associate
Microsoft
🎓
Bachelor of Engineering — Electronics & Communications
Don Bosco Institute of Engineering — Bangalore
Jun 2012 – Jan 2016  ·  Electronics & Communications Engineering
05 / Achievements

Key Accomplishments

01
📉
50% Cost Reduction
Modernised legacy codebases, cutting operational expenses by 50% through disciplined refactoring and modern architecture.
02
😊
90% Satisfaction Lift
Improved customer satisfaction by 90% through effective Wi-Fi and IoT issue resolution.
03
🗺️
NPCI Network Architecture
Designed HLD/LLD network diagrams for NPCI data centre locations supporting national payment infrastructure.
04
🏠
Home Automation Framework
Built an IoT automation framework for Samsung ARTIK and Raspberry Pi, earning recognition from successive teams.
05
👥
Team Leadership
Led a team of 6 engineers, boosting delivery through strong collaboration and technical mentoring.
06
🔒
Security Patching
Implemented a patching programme to remove vulnerabilities and protect sensitive production systems.
06 / Blog

Latest Posts

Networking · Cloud · Engineering · Career — practical articles from Ranjeet Kumar.

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07 / Connect

Get In Touch

Let's Build Resilient Networks Together

Open to senior network engineering roles, cloud networking opportunities, and technical leadership positions. Based in Bangalore (560079) — available for on-site or hybrid work.

✉
ranjeethkumar054@gmail.com
📞
+91 7899654469
in
linkedin.com/in/ranjeethkumar054
📍
Bengaluru, India — 560079
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