Sachin
Cloud Network Engineer
Ghaziabad
Summary
Innovative Cloud & Network Engineer with 10+ years of experience across cloud infrastructure, advanced IP networking, and Optical transport (DWDM, OTN, SDH), delivering secure, scalable, and high-performance infrastructure solutions.
Overview
11
11
years of professional experience
2
2
Languages
Work History
Cloud Network Engineer
Tata consultancy services
06.2022 - 09.2025
- Collaborated with cloud architecture teams to define standards and best practices for cloud network infrastructure and services.
- Implemented secure and scalable cloud connectivity solutions between on-premises data centres and cloud environments using VPN/IPsec and Direct Connect.
- Built and managed AWS VPC networking components including Subnets, Route Tables, NAT/IGW, VPC Endpoints, and Peering.
- Configured and managed AWS Transit Gateway routing, attachments, and multi-region architectures for distributed workloads.
- Implemented load balancing solutions using Application Load Balancer (ALB)/Network Load Balancer (NLB) to optimize performance, redundancy, and high availability.
- Managed Auto Scaling and application elasticity through load balanced network architectures.
- Configured and maintained cloud-native firewalls, network security controls, and access policies aligned with security compliance standards.
- Configured and maintained AWS cloud-based Palo Alto & Fortinet firewalls including NAT, policy rules, SSL inspection, IPsec tunnels, and threat prevention.
- Troubleshoot complex network and security problems involving VPN instability, BGP route issues, DNS resolution failures, latency, MTU, and packet drops.
- Implemented infrastructure automation with Terraform/CloudFormation and Ansible, leveraging GitHub and Jenkins CI/CD pipelines to streamline provisioning and eliminate manual configuration errors.
- Monitored performance using CloudWatch, VPC Flow Logs, CloudTrail, Grafana, and Prometheus for proactive incident response.
- Created runbooks, architecture diagrams, SOPs, and operational documentation following ITIL standards.
- Collaborated with architecture, security, and DevOps teams to support cloud migration and modernization initiatives.
Senior Network Engineer
Infinite computer solution limited
09.2021 - 05.2022
- Configure and support enterprise routers, switches, VLANs, STP, VTP, HSRP/VRRP, and monitor overall network performance.
- Troubleshoot BGP, OSPF, EIGRP, RIP routing issues and ensure stable LAN/WAN connectivity.
- Manage Palo Alto and FortiGate Firewalls, including security policies, NAT, VPNs, HA, threat analysis, and log monitoring..
- Managed ISP related problem coordinating with the vendors and resolves the issue.
- Lead high-severity incident handling, prepare RCA/RFO reports, and ensure preventive actions are implemented.
- Execute Change Management tasks including MOP/SOP creation, CAB approvals, implementation, and post-change validation.
- Use Splunk for log analysis, event correlation, incident detection, and operational insights.
- Perform deep packet-level troubleshooting using Wireshark to diagnose latency, packet loss, and protocol issues
- Maintain accurate network documentation, diagrams, and inventory for routers, switches, firewalls, and circuits.
- Engage with enterprise customers and field engineers for on-site troubleshooting, upgrades, and service restoration activities.
L2 Support Engineer (Optical and IP)
Nokia Solution Ltd payroll of UST global ltd
03.2018 - 09.2021
- Provide L2 support across IP & Optical domains: DWDM, OTN, MPLS, and enterprise/ISP IP networks.
- Troubleshoot and operate Cisco ASR/ISR/Catalyst (IOS-XE/IOS-XR) alongside Nokia, Huawei, Ciena, Infinera.
- Handle BGP, OSPF, IS-IS, MPLS L2/L3 VPNs; implement routing policies, VRFs, QoS, and TE.
- Worked on Configuration and troubleshooting of L2-VLAN, STP and VTP; L3- OSPF, MPLS.
- Provision and maintain optical services (OTU/ODU, lambdas, cross-connects) on PSS/6500/DTN/OSN.
- Perform end-to-end L2 fault isolation across IP, optical transport, and last-mile interfaces.
- Monitor and analyse alarms/performance using NFM-T/NFM-P, Cisco Prime/DCNM, Huawei U2000, Ciena One Control.
- Execute planned changes, upgrades, and migrations with rollback plans; ensure SLA/MTTR adherence.
- Coordinate with L3/OEM TACs (Cisco, Nokia, Huawei, Ciena, Infinera) for complex issue resolution.
- Conduct optical power audits, BER/PM analysis, Fiber route diagnostics, and capacity planning.
- Maintain RCAs, configs, and topology docs; enforce ITIL change control and security hardening.
- Support integration between IP and Optical layers for end-to-end service provisioning and performance optimization.
- Implement changes, upgrades, and restorations ensuring minimal impact on live traffic and SLA compliance.
- Conduct health checks, optical power analysis, wavelength routing, and fiber fault diagnostics.
Noc fault Engineer
Bharti Airtel LTD payroll on Genius consultant ltd
11.2016 - 03.2018
- Worked in Bharti Airtel NOC as a Senior Tech Engineer.
- Provided L2 support for DWDM/OTN/SDH/Ethernet devices.
- All level remote support field tech for DWDM related fault, troubleshooting, provisioning, service migration and testing.
- Worked on Various DWDM/SDH/Ethernet Vendor Equipment’s like Nokia PSS Device, Ciena (6500,5400, EPT), Huawei (1800,8800,9800), ECI(NPT), Tejas, Alcatel, ECI, ECI-NPT.
- Ensure creation and maintenance of relevant documentation such as Test plan, Test reports, Defects tracking with vendors, deployment guides to operations for smooth deployment of the application.
Consultant Engineer
Railtel corporation India LTD
05.2015 - 10.2016
- Hands-on experience in Optical Fiber Communication, specializing in field implementation, testing, and maintenance of underground fiber optic networks.
- Performed design, installation, splicing, OTDR testing, termination, fault rectification, acceptance testing, and preventive maintenance of optical links independently.
- Supervised all activities related to outside plant (OSP) installation, restoration, maintenance, and fiber route management, ensuring adherence to quality and safety standards.
- Conducted quality inspections and audits on work performed by field technicians to ensure compliance with project specifications and network reliability standards.
- Commissioned, configured, and maintained DWDM, SDH, and IP transport equipment from multiple vendors including Fibcom, Infinera (ATN/DTN), Coriant PTN, Alcatel, Tejas, Cisco, and Juniper.
- Supported network upgrades, service provisioning, and performance optimization in telecom and enterprise optical networks.
Network Support Executive
TBSS
11.2014 - 05.2015
- Proactively monitor and analyze network alarms across OTN, DWDM, and SDH systems using NMS/EMS tools (Alcatel, Nortel, Huawei, ECI, Tejas).
- Perform first-level fault diagnosis, isolate network issues (LOS, LOF, BER, card faults), and ensure timely restoration.
- Coordinate with field/L2 teams for fault rectification, escalation, and SLA adherence.
- Coordinate with field/L2 teams for fault rectification, escalation, and SLA adherence.
- Maintain incident logs, generate performance reports, and ensure 24x7 network availability through proactive monitoring.
Education
B.Tech - Electronics and Communication Engineering
Punjab Technical University
Jalandhar, India 04.2001 -
Intermediate - Science
CBSE Board
Delhi, India01.2010
High School - Science
CBSE Board
Delhi, India 04.2001 -
Skills
Cloud Networking: EC2, AWS VPC, Transit Gateway, Direct Connect, VPN, Route 53, NAT, Load Balancers
Accomplishments
- Received Multiple Applause Award.
- Received Multiple on the Spot award.
- Received best Team Lead award.
DECLARATION
I do here by declare that the above information is true to the best of my knowledge. Place: ............................ Date: ............................ Sachin (Signature)
PERSONAL DETAILS
- Father’s Name :- Rishi pal
- Permanent Address :- A/35 Janakpuri Sahibabad Ghaziabad (U.P)
- Date of Birth :- 30th November 1991
- Language Known :- English, Hindi.
- Marital Status :- Married
- Nationality/Religion :- Indian
Timeline
Cloud Network Engineer
Tata consultancy services
06.2022 - 09.2025
Senior Network Engineer
Infinite computer solution limited
09.2021 - 05.2022
L2 Support Engineer (Optical and IP)
Nokia Solution Ltd payroll of UST global ltd
03.2018 - 09.2021
Noc fault Engineer
Bharti Airtel LTD payroll on Genius consultant ltd
11.2016 - 03.2018
Consultant Engineer
Railtel corporation India LTD
05.2015 - 10.2016
Network Support Executive
TBSS
11.2014 - 05.2015
B.Tech - Electronics and Communication Engineering
Punjab Technical University
04.2001 -
High School - Science
CBSE Board
04.2001 -
Intermediate - Science
CBSE Board