Asfak Khan
Pune
Summary
Senior Testing Professional with over 10 years of experience in Telecom, focusing on 5G Core and Enterprise IoT. Proficient in validating cloud components and 3GPP interfaces in cloud environments. Demonstrated expertise in end-to-end automation, network slicing, and observability. Managed large-scale test labs and facilitated live migrations for seamless, carrier-grade deployments.
Overview
11
11
years of professional experience
3
3
Certifications
Work History
Senior Testing Engineer
Ericsson Global India Pvt. Ltd.
Pune
02.2021 - Current
- Experienced telecom professional specializing in dual-mode cloud core solutions, with expertise in 4G/5G core network elements, including AMF, SMF, UPF, S-GW, P-GW, and PCRF/PCF.
- Deployed enterprise edge cloud solutions for IoT services using Ericsson Enterprise 5G Core, and managed 5G applications deployment, leveraging OpenStack and Bare Metal infrastructures.
- Strong background in enterprise IoT testing, deployment, and integration across 5G/4G, including NB-IoT, LTE-M, and network slicing; experienced in implementing enterprise solutions, and validating eMBB use cases.
- Collaborated with the solution team to design and gain approval for comprehensive test cases; performed end-to-end testing on 3GPP interfaces (Sy, Gx, N4, N7, N3, N11, N8, N40, N6, Gy) using automation tools like AAT/Sprint.
- Performed hands-on configuration and validation of SMF, AMF, and UPF core nodes for 4G and 5G network deployments, ensuring compliance with operator specifications and interoperability requirements.
- Administered Kubernetes-based test labs: executed kubectl commands to inspect cluster state, diagnose pod/node issues, and verify service health during feature validation and troubleshooting.
- Designed, built, and maintained scalable test labs to execute functional, integration, performance, and non-functional testing, including environment provisioning, and test data management.
- Supported live-node migrations and upgrades: monitored migration activities, identified production issues, conducted root-cause analysis, and coordinated corrective actions to restore service.
- Skilled in managing hybrid cloud environments using Prometheus, Spinnaker, Ericsson Orchestrator, Helm, and GitHub.
- Designed and delivered end-to-end Enterprise IoT and 5G Network Slicing solutions, tailored to specific customer SLAs, and performance requirements.
- Contribute to enterprise projects involving the deployment of PCC and vEPG, and end-to-end testing of advanced features such as NB-IoT, LTE-M, and 5G SA network slicing configurations.
- Lead end-to-end testing of 4G and 5G call scenarios, including basic data calls, handover, charging, network slicing, VoNR, VoLTE, SRVCC, CSFB, interworking (5G to 4G), and roaming calls, to ensure seamless network performance and reliability.
- Collaborate directly with customers to understand testing requirements, provide technical support, and ensure the successful delivery of testing services aligned with client expectations.
- Proficient in bug tracking and reporting via JIRA, providing technical support during deployment and post-deployment, to ensure smooth network operations.
- Led feature testing across lab and production nodes: performed node-level analysis, captured protocol traces and logs, leveraged automation tools for multi-source correlation, and proposed remediation plans.
Senior Testing Engineer
Qualitest India Pvt. Ltd.
Bangalore
05.2019 - 02.2021
- Test case preparation and execution for scenarios for PCRF, PGW, SGW functionalities and regression pack.
- Testing data browsing (4G/3G/2G), Voice over CS and PS, bearer validations, SIP setup and troubleshoot Diameter call flows and error messages during VoLTE call establishment.
- Understand the function of MME, Gateway, and all nodes of IMS.
- Good Understanding on LTE, VoLTE calls flows and IMS registration Procedure.
- Conducted detailed analysis and review of test results and reports in coordination with clients.
- Experience on analyzing and fixed various testing for error/bugs in Nodes.
- Conducted LTE wireless testing of RF and protocols on mobile products.
- Proficient in using testing tools such as HP-ALM, Clear Quest and JIRA.
- Maintained detailed technical documentation for reporting, tracking and enhancement of test plans.
- Implemented procedures for performance testing of real time communication services.
- Conducted complete analysis of call flow requests, responses, and updates with tracing tools.
- Extensive knowledge of leading and legacy technologies like GSM, GPRS, UMTS, LTE, HSDPA.
Engineer
Ericsson Global India Pvt. Ltd.
Pune
10.2017 - 04.2019
- Assist with monthly reports, and make recommendations (optimization, tuning, capacity planning, management).
- Provided technical assistance for designing and development of interference and multi band testing.
- Analysis for ETPE(Pobis) for Balancing & SubNet mismatch etc. and accordingly suggesting Optimization.
- Responsible for parameters audit check & recommendations for 3G & LTE parameters.
- Log analysis and Bug fixing after running the test cases.
- E2E service Quality Analysis.
- Performed and expert in Functional, End to End, Regression, Performance, Usability, User Acceptance Testing (UAT) with Manual Testing tools.
- Visited on EnodeB’s during VOLTE deployment for Vodafone on field aligned several frequent joint visit with RF team to check the Radio performance before deployment into the MH&G circle.
- Familiarity with Nokia, OSS tools, reporting solution, counters & parameters and Feature implementation of 4G networks.
Engineer
Nokia Solution and network India Pvt. Ltd.
Pune
10.2014 - 10.2017
- Conducted LTE wireless testing of RF and protocols on mobile products.
- Performed Cell trace & UE Trace for VOLTE & LTE cells on OSS and decode message with help of Wireshark tool.
- Mobility analysis for HO prep and HO execution failures and rectification to improve the same.
- Parameter Audit and Consistency Check of EnodeB for VOLTE & LTE with Help of NePA tool.
- Analysis RF Condition by like RSRP, HO, PCI Swap, CSFB call, Latency Test, RRC Set Up & drop rate, SINR, CINR for VOLTE and LTE.
- Identify PCI confusion & confliction cells of VOLTE and rectify with help of planning team.
- Optimizing VOLTE sites to reduce drops, improving the SRVCC Handover.
- Coordinated different phases and activates in 4G,3G & 2G Networks.
- Supported technical team members in implementation and validation processes for system features.
- Executed effective processes for system testing functions as per established procedures.
- Network problem investigation/analysis by performance statistics, counters analysis using Tems Tool.
- 2G, 3G & LTE Script preparation.
- Migration of Node b for Capacity & Load balancing.
- XML creation & troubleshooting for implementation of parameters.
Education
Bachelor of Technology - Electronics and Communication
VNSIT College
Bhopal, M.P.01.2013
12th -
Govt. Boy High School Damua
Damua, M.P.01.2009
10th -
Govt. Boy High School Damua
Damua, M.P.01.2006
Skills
- 5G and 4G core networks
- IoT features and protocols
- 3GPP standards compliance
- Cloud infrastructure management
- Kubernetes orchestration
- Test automation tools
- Test management methodologies
- Call flow analysis
- Live operations management
- JIRA proficiency
- Docker containerization
- 5G core deployment
- Microservices architecture
- Virtualization technologies
Disclaimer
I hereby declare that the information given above is true & to best of my knowledge.
Tools Used
- JIRA
- HP-ALM
- Kubernetes
- ECCD
- AAT
- Spirent
- See-test
- Wireshark
- Citrix
- Putty
- MobaXterm
- SecureCRT
- GitHub
- IBM-TMS
- Spinnaker
- Ericsson Orchestrator
- Prometheus
- Grafana
Personal Information
- Father's Name: Mr. Ashraf Khan
- Date of Birth: 06/10/90
- Marital Status: married
Certification
Ericsson Technical Certification Program- 5G Core
Timeline
Senior Testing Engineer
Ericsson Global India Pvt. Ltd.
02.2021 - Current
Senior Testing Engineer
Qualitest India Pvt. Ltd.
05.2019 - 02.2021
Engineer
Ericsson Global India Pvt. Ltd.
10.2017 - 04.2019
Engineer
Nokia Solution and network India Pvt. Ltd.
10.2014 - 10.2017
Bachelor of Technology - Electronics and Communication
VNSIT College
12th -
Govt. Boy High School Damua
10th -
Govt. Boy High School Damua