Mar 2023 – Dec 2025 · 2 yrs 9 mos

• End to End 4g, 5g,Combo Core CNF deployments using helm-charts.
• Active contribution on 5g SA, NSA Combo nodes' solution design discussion for deployments , integrations and its testing on multiple cloud platforms like Robin, OCP, MWP, Kubernetes etc.
• Extensive packet core testing , DTP writing, Test plan reviews, Call flow testing etc.
• Designed and delivered Fault Management (FM), Performance Management (PM), and logging solutions, integrating Mavenir CNFs with External OSS and observability platforms for alarms, KPIs, and log monitoring.
• Specialized in PCRF/PCF configuration and integration, including policy rule creation, subscriber profile management, QoS enforcement, and interfacing with external systems.
• Deployed and managed microservices using Helm Charts; configured Istio resources (VirtualServices, ServiceEntries, Ingress/Egress gateways) for advanced traffic routing and secure service mesh communication.
• Conducted packet capture and trace/log analysis for troubleshooting and root cause analysis (RCA); provided training and documentation support to Managed Services (MS) teams.
• Configured network nodes (MME, SMF, AMF, NRF, NSSF, UPF, PCF, UDSF) with Day0/Day1/Day2 parameters including subscriber profiles, policy rules, DNS settings, encryption keys, routing info, and timers.

Jul 2022 – Mar 2023 · 8 mos · Noida, Uttar Pradesh, India

May 2020 – Jul 2022 · 2 yrs 2 mos · Noida, Uttar Pradesh, India

• Working on Solution Designing, Implementation for NEC products like AMF, SMF, UPF, NRF, NSSF and related features for implementing 5G core solutions for Kubernetes based cloud implementations.
• Active Contribution on 5G Solution discussion which aims to finalize the Call flows, sequence flow diagram, HA, Resiliency, Redundancy and implementation of other 3gpp standards.
• Creating customer documentation such as Network Design Documents (CIQ etc), installation MOP, HLD and LLD etc.
• Working on App-On boarding and E2E Life Cycle Management Scenarios of 5G CNFs Covering various scenarios of Instantiation, Scaling, Healing, Upgrades etc. Implementing service mesh.
• Solution discussion and integration of 5g CNFs with Configuration management, Observatory Framework, Fault Management and Performance Management.
• Deployments, Solution Integration and testing in customer network in various environment including Sandbox, Staging and Production; all these are Kubernetes-based storage and data management cloud native solution provided by robin.io.
• Participate in Daily Scrum calls as well as sprint planning sessions to support development efforts and estimate delivery timeliness.
• Effectively use Jira to estimate & track user stories and tasks.
• Work extensively with infrastructure team in order to prepare the infra for dev, staging and production environments by providing logical inventories, IP-Pool lists, Vlan, Other resource requirements etc

Apr 2015 – Apr 2020 · 5 yrs · Gurgaon, India

• To liaise between customer, vendors, implementation team and testing team regarding software functionality, issue resolution & deployment of new requirements in production server.
• Provided L3 Support (Managed Services) and performed various responsibilities as a technical lead in the operations of RA/FMS/BI ETL applications and its deliverables covering Airtel Africa’s GSM,3G and LTE customers.
• Design and development of ODS for all business analytics needs. Design and development of various reports on top of ODS for Billing, CRM and IMS data components covering Den’s cable and broadband customers.
• Rectifying and managing Database objects as per the changes made in the ETL adapters. Mange database objects, health checkups, performance tuning and administration on Oracle 11g,12C environments.
• Subject Matter Expert for OSS/BSS Systems and the applications such as CRM, Billing, AAA, PCRF, Revenue Assurance, Fraud Management Systems.
• ncident Management, Problem Management, Capacity Management, Risk analysis for any new ETL deployments.  Periodically Customer meeting and regular follow-ups for pending deliverables or the bugs identified, or Issues raised with internal teams. Provide dashboard to Customer on the progress and follow ups of such meetings.
• Track the SLA for all the Service/incident tickets raised by business and IT stakeholders. Review with the teams for enhancements.
• Extensively used Shell, PL/Sql, Python Scripting to get automation done for 25 + Manual operational tasks. Delivered Airtel Africa’s Automated DCR(Data Capture Report) to be received on email which used to take 8 hours daily in Manual preparation otherwise.
• Configured 100+ different types of email alerts to broadcast the report of System’s health, Reconciliation Between upstream and Downstream data sources, Dip in trends

Sep 2014 – Apr 2015 · 7 mos · Gurgaon, India

• Worked as Sr Automation Engineer for Airtel’s Revenue Assurance BU assisting several internal teams to automate the manual reporting and revenue controls for GSM, 3G Voice and Data CDRs.
• Create customized SQL queries and reports for validating rates and other CDR components in prepaid rating.
• Participated in Core node integration projects with respect to CDR validation and processing followed by Report creation.
• Rectifying and managing Database objects as per the changes made in the ETL adapters. Mange database objects, health check-ups, performance tuning and administration on Oracle 11g,12C environments.
• Integrate new adhoc change in BI and ETL reports with coordination with Vendor Team and Business needs.
• Acts as solution consultant in automation of existing operations and maintenance using BI and RA DB data.
• Performed several RA controls and reconciliation to capture revenue leakage and fraudulent activities.
• Creation of RA and Fraud rules and reports and automate using PL/SQL and shell scripting.
• Publish Daily and weekly RA and FMS KPI to concerned stakeholders using data modelling, analytics and different visualization techniques highlighting risks, dips in data/CDR trends, frauds if encountered.
• Delivered 30+ automated reports.

Sep 2011 – Oct 2014 · 3 yrs 1 mo · New Delhi Area, India

• Implemented and deployed Sterlite billing, AAA, PCRF and Provisioning products, involved in gathering and analysing customer requirements and its mapping in the project.
• Provided support for 1 month after go-live on various Sterlite AAA and PCRF deployments covering troubleshooting, packet tracing, RCA writing and handover to operations team.
• Integration testing of Sterlite PCRF over Gx and Sy interface.
• Integration testing of Sterlite AAA over RADIUS protocol
• Ownership of OSS test cases writing and test execution and UAT in production environments.
• Installation of OS, DB and applications on bare metal and VMs.
• Written Shell scripting as per project requirement and SQL queries for reporting purpose
• Telecom billing (Post-paid and prepaid) business case deployment and customization.
• Executed business case of B2C and B2B billing as per project requirement.
• Integrated Crestel billing product with CRM and other internal systems.
• Worked on billing system integration with CRM using rest API.
• Worked on customer activation from CRM and end to end creation in BSS system.
• Worked on solution understanding and discussion with customer. End to end its implementation.
• Worked on test case creation and its execution.
• Worked on payment and collection implementation for prepaid and postpaid customer from CRM to billing.
• End to end subscriber data migration business understanding, customization and execution using PL/SQL.
• Subscriber delta data migration using PL/SQL.
• Integrated billing system with payment gateways (Oxigen, atom, Paytm and Payu).
• B2C billing of migrated 10 million subscribers in different bill cycles.
• CR execution and patch deployment over post go live systems.
• Understanding Logs and PCAP to solve operational issue

Jun 2011 – Sep 2011 · 3 mos · Ghaziabad

• Provided hands-on trainings to the students of computer science in subjects like Oracle,DBMS,C,C++,Linux,
• Operating Systems to intermediate and under-grad students