R&D Engineer

Jobtailor; Gurugram District; On-site; INR 1,000,000 - 1,400,000; Full time

Job summary

Jobtailor in Gurugram is seeking a seasoned Telecom Core technologies specialist to support NPI projects and lead RCA across high‑traffic, distributed systems. You will collaborate with R&D, handle on‑call emergencies, and enable the services team on current product versions.

Expertise in 3G/4G/5G core components, signaling protocols, Linux environments, and automation via Python/Bash is essential for delivering sustainable customer solutions.

Qualifications

• 5+ years of experience in Telecom Core technologies, supporting high‑traffic, large‑scale distributed systems and client‑server architectures.
• Strong understanding of core network elements and solutions, and their business and operational value to telecom operators.
• Proven expertise in Root Cause Analysis (RCA) for complex customer issues, acting as a subject matter expert and collaborating effectively with virtual, cross‑functional teams to deliver sustainable solutions.
• Good understanding of AI/ML workflows and scripting expertise (Python/Bash) needed to automate and deploy intelligent solutions.
• Willingness to participate in Nokia Global Emergency Support and 24×7 on‑call activities.
• Flexibility to travel on short notice for onsite customer support, project execution, or critical issue resolution.
• Prior experience in customer interfacing, with the ability to understand customer deployments, architectures, and serviceability use cases.
• In‑depth knowledge of 3G/4G call flows and a solid working understanding of 5G call flows.
• Hands‑on experience with 4G/5G Core components, including CSD, PCRF, VoLTE, DRA, SCP, BSF, and SEPP.
• Solid understanding of 4G/5G Core Network architecture, with exposure to HLR, HSS, UDM, EIR, and relevant 3GPP standards.
• Strong hands‑on knowledge of signaling protocols and interfaces, including Diameter, HTTP/2, REST APIs, JSON, SCTP, and TCP, along with experience working with core network products such as Load Balancers.
• Practical experience with Linux‑based environments, virtualization, and cloud platforms including Kubernetes, VMware, and OpenStack, as well as CSF assets and blueprints (e.g., BVNF, BCMT, BELK).

Responsibilities

• Support customers via NPI (new product introduction) to complete their project commitments with the highest quality, while providing dedicated SPOCs for lead customers to enable faster turnaround and resolutions.
• Handle end‑to‑end customer projects, including deployment, integration, development and execution of customer acceptance test cases, and troubleshoot complex issues in collaboration with R&D.
• Handle tickets and emergency cases to shield R&D from non‑product related incidents.
• Enable services team members on the latest product versions.
• Design and create solutions to automate troubleshooting and system recovery using AI‑based tools and automated scripts.

Skills

Root Cause Analysis

Customer interfacing

AI/ML workflows

On-call support

Tools

Python scripting

Bash scripting

Kubernetes

Linux

Job description

Responsibilities

• Support customers via NPI (new product introduction) to complete their project commitments with the highest quality, while providing dedicated SPOCs for lead customers to enable faster turnaround and resolutions.
• Handle end‑to‑end customer projects, including deployment, integration, development and execution of customer acceptance test cases, and troubleshoot complex issues in collaboration with R&D.
• Handle tickets and emergency cases to shield R&D from non‑product related incidents.
• Enable services team members on the latest product versions.
• Design and create solutions to automate troubleshooting and system recovery using AI‑based tools and automated scripts.

Requirements

• 5+ years of experience in Telecom Core technologies, supporting high‑traffic, large‑scale distributed systems and client‑server architectures.
• Strong understanding of core network elements and solutions, and their business and operational value to telecom operators.
• Proven expertise in Root Cause Analysis (RCA) for complex customer issues, acting as a subject matter expert and collaborating effectively with virtual, cross‑functional teams to deliver sustainable solutions.
• Good understanding of AI/ML workflows and scripting expertise (Python/Bash) needed to automate and deploy intelligent solutions.
• Willingness to participate in Nokia Global Emergency Support and 24×7 on‑call activities.
• Flexibility to travel on short notice for onsite customer support, project execution, or critical issue resolution.
• Prior experience in customer interfacing, with the ability to understand customer deployments, architectures, and serviceability use cases.
• In‑depth knowledge of 3G/4G call flows and a solid working understanding of 5G call flows.
• Hands‑on experience with 4G/5G Core components, including CSD, PCRF, VoLTE, DRA, SCP, BSF, and SEPP.
• Solid understanding of 4G/5G Core Network architecture, with exposure to HLR, HSS, UDM, EIR, and relevant 3GPP standards.
• Strong hands‑on knowledge of signaling protocols and interfaces, including Diameter, HTTP/2, REST APIs, JSON, SCTP, and TCP, along with experience working with core network products such as Load Balancers.
• Practical experience with Linux‑based environments, virtualization, and cloud platforms including Kubernetes, VMware, and OpenStack, as well as CSF assets and blueprints (e.g., BVNF, BCMT, BELK).

Core Competencies

Demonstrates expertise in Telecom Core Technologies and Root Cause Analysis, with a strong ability to automate troubleshooting and system recovery using AI/ML workflows and scripting languages such as Python and Bash. Proven experience in customer interfacing and understanding complex network architectures is essential.