Telecom Domain SME – Network Operations & Analytics Enablement IRC290217

Description

This position is part of the Telecom Core Networks & Advanced Analytics Program, which builds intelligent tools to enhance Network Operations and Support. The SME will act as the bridge between Data Science teams (who design predictive models, anomaly detection, and automation frameworks) and Engineering teams (who develop and deploy operational tools). By combining deep telecom signaling expertise across 2G, 3G, 4G, and 5G protocols with a strong grasp of 3GPP specifications, the SME ensures that tools are grounded in standardized network behavior, enabling faster troubleshooting, smarter automation, and improved customer experience.

The project’s mission is to:

Integrate telecom domain knowledge into data-driven tools for proactive monitoring and RCA.

Support engineering teams in designing scalable solutions aligned with signaling complexities.

Enable operations teams to leverage advanced analytics for efficiency and reliability.

Requirements

Must-Have

Strong knowledge of MAP (SS7) and Diameter protocols

Clear understanding of call flows, request/answer mechanisms, timers, errors, and result codes

Hands-on experience with PCAP analysis (Wireshark/tshark), log and trace analysis

Solid understanding of roaming scenarios across 2G/3G/4G/5G environments

Working knowledge of protocols across generations:

2G/3G: MAP, CAMEL, CAP, SS7 signaling

4G: Diameter (Gy, Gx, S6a, Sh), GTP-C/U, SIP (IMS/VoLTE)

5G: HTTP/2-based service-based interfaces (N11, N12, N13, N22), NAS signaling, SCTP

Strong understanding of 3GPP specifications governing signaling, roaming, and core network functions

 

Nice-to-Have

Knowledge of additional protocols: RTP, SIP extensions, SCTP

Exposure to HLR/HSS/UDM, PCRF/PCF, OCS/charging systems

Experience in telecom operations, NOC, or escalation teams

Familiarity with 4G/5G core architecture (AMF, SMF, UPF, PCF, NRF, UDM)

Job responsibilities

Act as SME for telecom signaling protocols across 2G, 3G, 4G, and 5G

Explain and validate end-to-end call flows for voice, SMS, data, IMS/VoLTE, and roaming scenarios

Troubleshoot and analyze PCAPs, traces, and logs to identify failures (call setup, authentication, charging, roaming attach/data)

Perform RCA for complex signaling problems and correlate with KPIs, logs, alarms, and customer issues

Collaborate with Data Science teams to embed telecom domain logic into predictive models and anomaly detection frameworks

Partner with Engineering teams to design and validate tools for network monitoring, troubleshooting, and automation

Ensure compliance with 3GPP specifications when analyzing signaling behavior and designing solutions

Understand roaming call flows across home/visited networks and international signaling paths; identify failures due to latency, timeouts, or misconfigurations

Coordinate with roaming partners, vendors, and internal teams (NOC, engineering, architecture)

Translate technical findings into business-impact explanations for stakeholders

Support incident reviews, audits, and customer escalations

Contribute to documentation, SOPs, and knowledge base

What we offer

Culture of caring. At GlobalLogic, we prioritize a culture of caring. Across every region and department, at every level, we consistently put people first. From day one, you’ll experience an inclusive culture of acceptance and belonging, where you’ll have the chance to build meaningful connections with collaborative teammates, supportive managers, and compassionate leaders. 

Learning and development. We are committed to your continuous learning and development. You’ll learn and grow daily in an environment with many opportunities to try new things, sharpen your skills, and advance your career at GlobalLogic. With our Career Navigator tool as just one example, GlobalLogic offers a rich array of programs, training curricula, and hands-on opportunities to grow personally and professionally.

Interesting & meaningful work. GlobalLogic is known for engineering impact for and with clients around the world. As part of our team, you’ll have the chance to work on projects that matter. Each is a unique opportunity to engage your curiosity and creative problem-solving skills as you help clients reimagine what’s possible and bring new solutions to market. In the process, you’ll have the privilege of working on some of the most cutting-edge and impactful solutions shaping the world today.

Balance and flexibility. We believe in the importance of balance and flexibility. With many functional career areas, roles, and work arrangements, you can explore ways of achieving the perfect balance between your work and life. Your life extends beyond the office, and we always do our best to help you integrate and balance the best of work and life, having fun along the way!

High-trust organization. We are a high-trust organization where integrity is key. By joining GlobalLogic, you’re placing your trust in a safe, reliable, and ethical global company. Integrity and trust are a cornerstone of our value proposition to our employees and clients. You will find truthfulness, candor, and integrity in everything we do.

About GlobalLogic

GlobalLogic, a Hitachi Group Company, is a trusted digital engineering partner to the world’s largest and most forward-thinking companies. Since 2000, we’ve been at the forefront of the digital revolution – helping create some of the most innovative and widely used digital products and experiences. Today we continue to collaborate with clients in transforming businesses and redefining industries through intelligent products, platforms, and services.