IMRAN KHAN

Currently handling e2e project in Telecom EPC & IMS Core applications. The role is direct communication with
Government Customer for each problem. Also, ability to predict challenges and seek to proactively head-off
obstacles.
Responsible for technical design, platform implementation, deployment, upgrades & troubleshooting for PS &
IMS Core platform including new products and change requests
Planning and designing new 4G core network elements i.e. MME, SGW, PGW, PCRF, HSS, CSCF, TAS, cloud
infrastructure, VNF/CNF deployments, networking architecture.
Deployment & Configuration of telecom core Virtual Network Functions/ Network Equipments (VNF) and Cloudnative
Network Functions (CNF) based on Kubernetes onto OpenStack Cloud Management System (CMS)
platform.
Working exposure in the planning, deployment, commissioning, integration & troubleshooting of PS & IMS Core
nodes
Proficient in end-to-end integration of PS & IMS Core Network applications with peer nodes and well-versed in
understanding call flows.
Troubleshoot technical problems related to EPC & IMS core VNF & CNF nodes, identify the faults, rectify & repair
them by taking health checks & In depth analysis.
Day-to-day operation routine tasks related to 4G/5G private Network infrastructure and remove all major
obstacles that might occur during day-to-day operations
Creating, assessing & providing input in documentation of Requests for Information (RFIs), Requests for
Proposals (RFPs), Statements of Work (SOWs), Methods of Procedure (MOPs), and Bills of Quantities (BOQs).
Coordinates all network, system support & Transport activities related to 4G/5G private Network
Serving as SME for all issues relating to Telecom core applications platforms. Mentored junior team members,
contributing to their professional growth and development within the company.

Currently handling e2e project in Telecom EPC & IMS Core applications. The role is direct communication with
Government Customer for each problem. Also, ability to predict challenges and seek to proactively head-off
obstacles.
Responsible for technical design, platform implementation, deployment, upgrades & troubleshooting for PS &
IMS Core platform including new products and change requests
Planning and designing new 4G core network elements i.e. MME, SGW, PGW, PCRF, HSS, CSCF, TAS, cloud
infrastructure, VNF/CNF deployments, networking architecture.
Deployment & Configuration of telecom core Virtual Network Functions/ Network Equipments (VNF) and Cloudnative
Network Functions (CNF) based on Kubernetes onto OpenStack Cloud Management System (CMS)
platform.
Working exposure in the planning, deployment, commissioning, integration & troubleshooting of PS & IMS Core
nodes
Proficient in end-to-end integration of PS & IMS Core Network applications with peer nodes and well-versed in
understanding call flows.
Troubleshoot technical problems related to EPC & IMS core VNF & CNF nodes, identify the faults, rectify & repair
them by taking health checks & In depth analysis.
Day-to-day operation routine tasks related to 4G/5G private Network infrastructure and remove all major
obstacles that might occur during day-to-day operations
Creating, assessing & providing input in documentation of Requests for Information (RFIs), Requests for
Proposals (RFPs), Statements of Work (SOWs), Methods of Procedure (MOPs), and Bills of Quantities (BOQs).
Coordinates all network, system support & Transport activities related to 4G/5G private Network
Serving as SME for all issues relating to Telecom core applications platforms. Mentored junior team members,
contributing to their professional growth and development within the company

Lead & manage e2e project in Telecom 4G IMS core applications. Role is direct communication with Customer
for each problem. Also, ability to predict challenges and seek to proactively head-off obstacles.
Planning and designing new core network elements, cloud infrastructure, VNF/CNF Server deployments,
networking architecture, Customer Information Questionnaire (CIQ), as well as producing Low-Level Designs
(LLD) and High-Level Designs (HLD).
Proficiency with virtualization platforms i.e. Openstack, including virtual machine management, resource
allocation, and performance optimization.
Deployment & Configuration of telecom core Virtual Network Functions/ Network Equipments (VNF) and Cloud
native Network Functions (CNF) based on Kubernetes onto OpenStack Cloud Management System (CMS)
platform.
Proficient in end-to-end integration of applications with peer nodes and well-versed in understanding call
flows.
Creating and assessing Requests for Information (RFIs), Requests for Proposals (RFPs), Statements of Work
(SOWs), Methods of Procedure (MOPs), and Bills of Quantities (BOQs).
Practical expertise in working with Linux, GIT, Kubernetes, Docker, Helm charts, and handling YAML and JSON
files .
Working exposure of Open-Stack services i.e., Keystone, Nova, Neutron, Horizon, Cinder, Glance, Heat, Swift,
Telemetry.
Laboratory experience in onboarding of core telecom CNF applications on Open-shift Kubernetes Engine and
Open-shift Container Platform .
Creation security policies and procedures, access controls, firewalls for Network equipments as per industry
standards, regulations, and best practices for data security and privacy.
Examining logs & traces to troubleshoot problems in Linux, Kubernetes applications, and addressing customer
complaints within telecom core domain.
Troubleshoot & Monitoring of all private Network Operation servers and router and reporting for any critical
abnormality or problems to concerned sections and management after GO-Live technical problems of the
related ICT platforms, identify the faults, rectify & repair them.
Configuring and maintaining network equipment, monitoring network performance, troubleshooting network
issues, and implementing network security measures to protect against unauthorized access.
Concluded maintenance tasks, including expansions, software upgrades and hardware upgrades.
Preparation of Backup restore procedures and failover mechanisms to ensure data center resilience and
continuity of operations.
Playing crucial role in Acceptance Testing (AT) for Volte, IMS core, and GSM Nodes, and formally declaring
Nodes operational before handing them over to customer.
Exposure on ETSI MANO architecture & NFVI. Installation of CBIS(VIM), CBAM & CBND(VNFM).
Telecom domain knowledge of 2G, 3G, IMS/VOLTE(4G), 5G core.
Time management and organizational skills and experience in establishing guidelines in telecom core
application area for teammates.
Lead and provide guidance to vendors and teammates, assigning tasks, providing guidance and training,
conducting performance evaluations and fostering collaborative and supportive work environment.
Managerial experience applying analytical thinking and problem-solving skills & helping team to resolve issues.
Identified areas in need of critical & continuous improvement and implemented strategies to achieve targets.
Collaboration with vendors & cross team to implement improvements, streamline workflows, and optimize
service delivery of Network Equipments.
Resource allocation and capacity planning to ensure optimal use of resources and scalability to meet changing
business requirements of customer projects.
Provide input in tender/RFP and vendor valuation/selection.
Served as SME for all issues relating to IMS Core & ICT platforms.

Monitoring health of Ericsson IMS Core nodes, including MTAS, CSCF, SBG/BGF.
Addressing and resolving all IMS node issues based on tickets received through BMC Remedy.
Performing IMS registration, analyzing call flows, and conducting detailed examinations of Wire Shark Traces
to identify and rectify call failure scenarios.
Provide prompt efficient Assistance for L4 support engineers as needed, and trying to fulfill their requirements
as possible.
Manage parameter and configuration changes with impact analysis on IMS.
Backup and restore procedures, and failover mechanisms to ensure data center resilience and continuity of
operations in event of disasters or outages.
Assisted & lead in analyzing and enhancing the operation and maintenance practice and processes to meet
emerging business requirements.
Mobile Call flows and Protocols understanding, VoLTE call flows CS Fallback procedure.
Solving SIP and Diameter protocols handling
Understanding of Cloud/Virtualization concepts and managing VNF
Executing network-related administration tasks such as verifying backup of IMS nodes on Backup server and
performing manual backup and transfer activities.
Track of faults and problems/issues in each of Telecom systems.
Track & resolve end user complaints through Siebel system.
Manage and Plan routine and preventive maintenance checks of telecom 4G core systems, inform concerned
section(s), of any irregularities observed during check.
Ensure that maintenance schedules are strictly implemented and are as per manufacturers
guidelines/operational manuals.
Study history of repeated fault occurrence and various technical aspects of such repeated complaints. Propose
action/solutions for permanent solution.

Completed VNF onboarding of Linux, Kubernetes Container based telecom products i.e. open TAS, Nokia TAS, Bare metal MGW, BGW & Bare metal & vMSS for multiple operators
Completed network planning i.e. Cloud planning, VNF planning, Networking, MOP, CIQ, LLD, HLD.
Working Exposure of Red-hat Open stack cloud GEN-9, GEN-10, Deployment of AS on IAAS cloud
Working Exposure on MANO architecture & NFV. Installation of CBIS manager, CBAM installer
Exposure of Cloud services i.e. Keystone, Nova, Neutron, Horizon, Cinder, Glance, Heat, Swift, Ceilometer.
Working knowledge on Open stack, Virtualization, Under Cloud installation, CBAM installation, CBND installation
Creation of security channels in Open stack cloud
Functional call Testing of Core IP Multimedia Subsystem (Core IMS)
Completed the care activities i.e. Expansions, Hardware Upgrade, software Upgrade & release upgrades.
Performed Volte End to End Testing and log analysis for the failure causes
Debugging for CSCF and TAS nodes while analyzing VoLTE logs
Responsible for feature testing of (Nokia TAS, Open TAS, MSS & MGW)
Troubleshooting & debugging of MSS & MGW & oTAS, NTAS & BGW nodes.
Completed the testing of E2E call flows, supplementary services, Announcements
Preforming the vital role in AT of Volte, IMS & GSM Nodes and declaring the Nodes live, handover to Customer
Exposure on Backup of MSS & MGW, BGW, TAS & restoration with the help of Backup
Experience on analyzing and fixing various testing for error/bugs in Nodes.
Experience of GSM/UMTS and VoLTE & IMS feature Testing & tracing Layer 2 and layer 3 protocols
Functional understanding SSH, FTP, DNS, NTP, TCP/IP.
Worked on Core Nodes for 4G, 2.5G, 3G Nokia products and protocols.
Expertise of Testing of various Telecom protocols and analyzing the Protocols in Test Lab & Non-live for different nodes MSS, MGW, BGW, TAS, HLR, ATCA MSS and ATCA MGW.
Domain knowledge of 2G, 3G, IMS/VOLTE(4G), 5G
Coordination with various teams i.e. OSS, CDR testing with Mediation team, LI testing with Nodal team, RA team.
Creation of links & SCTP associations with SRVCC, MGCF, CSFB, MME, MRFC.
Knowledge of Different IMS & GSM call flows.
Knowledge of 5G Architecture & pursuing more on 5G
Protocols known: SIP(RFC3261), UMTS, ISUP, BSSAP, CAP, MAP, H.248, SCCP, SIGTRAN, M3UA, SS7, TCP/IP.

Monitored implementation and operation of Short Message Service Center (SMSC) and Message Service
Delivery Platform (MSDP) on Linux platform. Provided ongoing recommendations and collaborated with
customer team.
Conducted troubleshooting at application level and analyzed traces for issue resolution. Played key role in
Configuration Management and Change Management processes.
Collaborated closely with Senior Level 3 (L3) engineers and Development team to address issues and
implement patch upgrades.
Performs routine operation and/or maintenance tasks as required with little supervision/guidance. Escalates
complex/critical/recurrent/unresolved issues/concerns to supervisors and/or related sections for guidance in
resolving them; ensure prompt, efficient and reliable follow up as required.
Coordinated with clients for both pre and post implementation activities, ensuring successful completion and
sharing activity results and test outcomes.
Enforced password policies and implemented server and database hardening measures. Prepared Weekly and
Monthly Audit Reports, Daily Dashboard Reports, and System Uptime Reports.
Provided comprehensive support for applications, including testing, maintenance, troubleshooting, and
debugging.
Implemented client-side changes as required and applied them to live projects during scheduled downtime.
Generate statistics & traffic reports and utilize them to monitor service quality and performance.
Generate incident/analysis reports on network events, changes, etc.

Conducting health monitoring of nodes to ensure optimal network performance.
Striving to achieve and maintain Radio Network Performance in line with contracted Key Performance
Indicators (KPIs), including Accessibility, Retainability, Mobility, and Service Integrity.
Promptly raising tickets for any network degradation issues, such as hardware faults, transmission problems,
site congestion, coverage issues, call drops, call setup issues, HSDPA, and HSUPA-related concerns.
Escalating service failures according to established network operation escalation process.
Collaborating with UK engineers to address and resolve interconnectivity link problems.
Ensuring 100% resolution of subscriber complaints within specified Service Level Agreement (SLA).
Managing customer complaints related to low throughput and monitoring cells exhibiting degradation or in
sleeping state.
Analyzing Key Performance Indicators (KPIs) on daily basis to identify opportunities for improving network
performance of EE and H3G operators.
Time for resolution of Level 3 customer support issues of application/platform downtime

Operation and Maintenance of Ericsson HLRs, MSS, MGW, Blade Clusters, VAS & MPLS router & switches
O & M of routers & switches
Health Monitoring of MSCs/HLRs, BC, MPLS Routers & Switches
Rectification of Alarms in Ericsson nodes
Fault management(L2) & Alarm Monitoring(L1) of MSC, HLR’s, Media Gateways, Routers & switches
HLR DUMP as per process
B. number analysis & Getting New Level Series open from all operators
Taking BACKUP of all Ericsson HLR, MGW, Blade cluster, Routers & Switches
Escalation according all service failure as per network operation escalation process.
Daily performance reports analysis and carry out required changes in reports.
Daily performance report preparation of ASR, CSR, Traffic, MOU, LAC PSR, TAR & OUTAGE reports.
Coordinate with POIs, to solve the problem regarding interconnectivity links.
Worked in Winfiol, Putty and doing ALARM Monitoring in ERICSSON NODES.
100% resolution of Subscribers complaints within a given TAT.
Provide Technical Support to the GPRS Team, Customer Care division, Billing system, MPLS team, VAS team
Provide a fully available voice network to the highest quality standard.
Cell Id creations& Hardware Fault rectifications
Knowledge of SIP, Tunneling Protocols, IMS, Diameter etc.