Manager_Data Core Engineer_BLR
Vodafone
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Job summary
VOIS (Vodafone Intelligent Solutions) in Bengaluru seeks a Data Core Engineer to troubleshoot and optimise 4G/5G core networks in a 24x7 environment. You will work with MME, SGW, PGW, AMF, SMF, UPF and other core components, performing incident resolution and network evolution.
The role requires strong telecom protocol knowledge, Linux, cloud-native environments, and hands-on automation using Python, Shell scripting, Ansible and CI/CD. Weekend/night shifts may be required.
Qualifications
- BE/B.Tech in Electronics & Telecommunications required.
- 6–8 years of experience in Mobile Network Operations.
- Deep knowledge of 4G LTE EPC and 5G Core architectures.
- Hands-on experience with MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM & PCF.
- Strong debugging of attach, roaming, data-session issues.
- Proficient in packet trace analysis with Wireshark or tcpdump.
- Experience with Linux, VMware and Kubernetes environments.
- Experience with Python, Shell scripting, Ansible, REST APIs, CI/CD.
Responsibilities
- Troubleshoot and resolve complex 4G LTE EPC and 5G Core incidents within SLAs.
- Analyse attach and registration failures, bearer and data-session issues.
- Perform packet and protocol trace analysis using Wireshark and tcpdump.
- Configure and optimise network software parameters per quality requirements.
- Support Linux, VMware and Kubernetes-based environments and monitoring.
- Develop automation using Python, Shell, Ansible, REST APIs and CI/CD.
- Coordinate with vendors and Vodafone operating companies to meet service levels.
Skills
Education
Tools
Job description
VOIS (Vodafone Intelligent Solutions) is a strategic arm of Vodafone Group Plc, creating value for customers by delivering intelligent solutions through Talent, Technology & Transformation. As the largest shared services organisation in the global telco industry with 30,000 FTE, our portfolio of next-generation solutions and services are designed in partnership with customers across Vodafone Group, local markets, and partner markets to simplify and drive growth. With our strategic partner Accenture, we work alongside our Vodafone customers, other Telco and tech companies to drive transformation, meet the challenges of our industry and ensure we stay relevant and resilient. This partnership is a unique, industry-first model which brings together the best of in-house and 3rd party capability. We work with customers across 28 countries from 10 VOIS locations: Albania, Egypt, Hungary, India, Romania, Spain, Turkey, UK, Germany, Ireland, and with a network of teams in Czech Republic, Italy, Greece, and Portugal.
We are seeking a Data Core Engineer to join our Managed Services team within Vodafone Network Operations in Bangalore, India. This role focuses on the operation, troubleshooting, configuration and optimisation of complex 4G LTE EPC and 5G Core networks supporting mission-critical telecommunications services.
You will work across technologies including MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM and PCF, resolving complex network incidents and supporting network evolution, integration and service continuity.
The role requires strong knowledge of 4G/5G signalling and call flows, telecom protocols, Linux and cloud-native environments, combined with hands-on troubleshooting and automation capabilities. You will collaborate with Operations, Planning, Delivery, vendors and Vodafone operating companies to maintain network performance and meet agreed SLAs and KPIs.
The position operates within a 24x7 telecom environment and may involve weekend, night and overtime working depending on operational requirements.
- Troubleshoot and resolve complex 4G LTE EPC and 5G Core network incidents within agreed SLAs, restoring service quality and continuity.
- Investigate high-complexity technical issues escalated by first-line and other operational teams and provide appropriate remediation.
- Analyse attach failures, registration failures, bearer issues, data-session problems, roaming incidents and signalling faults.
- Perform packet and protocol trace analysis using tools including Wireshark and tcpdump.
- Configure, integrate and optimise network software parameters in line with defined quality and operational requirements.
- Support network functions including MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM and PCF.
- Analyse 4G/5G signalling and procedures including LTE attach, 5G registration, PDU session establishment, handovers and roaming.
- Troubleshoot protocols including Diameter, GTPv2-C, GTP-U, PFCP, SIP, SCTP, DNS, HTTP/2, MAP and TCP/IP.
- Execute preventive and corrective maintenance to reduce recurring faults and maintain network performance.
- Conduct periodic preventive system checks to identify latent software and hardware deficiencies.
- Support parameter configuration, controlled network changes, rollouts and integration activities aligned with network development plans.
- Evaluate network changes to maintain quality of service and minimise regression risks.
- Support Linux, VMware and Kubernetes-based environments, including system health monitoring, logging and performance management.
- Develop and adapt automation and operational solutions using Python, Shell scripting, Ansible, REST APIs and CI/CD practices.
- Introduce and improve operational processes using automation and AI to increase efficiency and consistency.
- Support High Availability, Geo-Redundancy, Disaster Recovery, NFV and cloud-native network deployments.
- Participate in Business Continuity Plan execution and identify practical workarounds or alternative solutions during critical interventions and disaster-recovery scenarios.
- Escalate complex technical problems to relevant vendors and collaborate through resolution.
- Engage with Major Incident Management during critical outages in accordance with established escalation procedures.
- Provide accurate and timely incident communications to agreed stakeholder groups.
- Coordinate with vendors, other departments and Vodafone operating companies to meet agreed service levels.
- Support field engineers and Planning, Integration and Deployment teams during complex interventions.
- Maintain operational procedures and network documentation.
- Share technical knowledge and troubleshooting practices with teams supporting network deployment and operations.
- Contribute to Incident, Problem, Change and Major Incident Management processes within a 24x7 operational environment.
- A BE/B.Tech in Electronics & Telecommunications.
- 6–8 years of experience in Mobile Network Operations.
- Strong expertise in 4G LTE EPC and 5G Core architectures, including network functions, interfaces, operational processes and solution design.
- Hands-on experience with MME, SGW, PGW, PCRF, HSS, AMF, SMF, UPF, UDM and PCF.
- Strong understanding of subscriber mobility, session management, bearer management, policy control, charging, roaming, VoLTE and VoNR.
- Detailed understanding of 4G/5G signalling and call flows, including attach, registration, PDU session establishment, handovers and roaming procedures.
- Practical expertise in Diameter, GTPv2-C, GTP-U, PFCP, SIP, SCTP, DNS, HTTP/2, MAP and TCP/IP.
- Proven experience troubleshooting attach, bearer, data-session, roaming and signalling-related problems.
- Experience analysing packet and protocol traces using Wireshark and tcpdump.
- Hands-on knowledge of Linux administration, VMware and Kubernetes-based orchestration.
- Experience with system health monitoring, log analysis and performance management.
- Understanding of HA, Geo-Redundancy, Disaster Recovery, NFV and cloud-native network deployments.
- Experience with Incident, Problem, Change and Major Incident Management in a 24x7 telecom operations environment.
- Working proficiency in Python, Shell scripting, Ansible, REST APIs, automation frameworks and CI/CD pipelines.
- Effective analytical, problem-solving, stakeholder management, communication and documentation capabilities.
- Cisco CCNA and/or CCNP certification.
- Knowledge of cloud fundamentals.
- ITIL v4 certification.
- Experience working across multiple telecommunications vendors.
- Knowledge of scripting, command-line environments and Windows/Unix administration.
- Operational experience supporting complex, mission-critical IT or telecommunications systems.
- Opportunity to work extensively with 4G LTE EPC and 5G Core technologies in a large-scale telecommunications operations environment.
- Exposure to both traditional and cloud-native telecom network architectures, including NFV, Kubernetes, HA and Geo-Redundancy.
- Hands-on involvement in technically complex incident resolution, network optimisation, rollouts and integration activities.
- Opportunities to apply automation, scripting and AI to improve operational processes, consistency and efficiency.
- Cross-functional collaboration with network Operations, Planning, Integration, Deployment, vendors and Vodafone operating companies.
- Opportunity to deepen expertise in business continuity, disaster recovery and the operation of mission-critical telecommunications platforms.
- Advanced 4G/5G Core troubleshooting and optimisation techniques.
- End-to-end analysis of complex LTE and 5G signalling flows.
- Practical expertise across Diameter, GTP, PFCP, SIP, SCTP and HTTP/2.
- Cloud-native telecommunications operations involving Kubernetes, NFV and virtualised network environments.
- Network automation using Python, Shell scripting, Ansible and REST APIs.
- Application of CI/CD, automation and AI within network operations.
- Major incident handling, business continuity and disaster-recovery practices.
- Cross-functional technical collaboration, vendor engagement and operational knowledge sharing.
Vodafone recognises and celebrates the value of diversity in building a workforce that reflects the customers and communities it serves. No form of discrimination is tolerated. This includes, but is not limited to, discrimination based on race, colour, age, veteran status, gender identity, gender expression, sexual orientation, pregnancy, maternity or parental status, ethnicity, disability, religion or belief, political affiliation, trade union membership, nationality, citizenship, indigenous status, medical condition, HIV status, neurodiversity, social origin, cultural background, marital or civil partnership status, or socio-economic background.
At Vodafone, we’re working hard to build a better future. A more connected, inclusive and sustainable world. As a dynamic global community, it's our human spirit, together with technology, that empowers us to achieve this. We challenge and innovate in order to connect people, businesses, and communities across the world. Delighting our customers and earning their loyalty drive us, and we experiment, learn fast and get it done, together. With us, you can truly be yourself and belong, share inspiration, embrace new opportunities, thrive, and make a real difference.
- LinkedIn: https://www.linkedin.com/company/vois/
- Facebook: https://www.facebook.com/voisglobal
- Instagram: https://www.instagram.com/voisglobal/
- You can also chat with our employees to learn more about our projects: https://lnkd.in/dpkrcvR2
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