Bangalore, Karnataka
Job Summary
We are seeking a highly skilled Telecom Validation Engineer with hands-on experience in Nokia Packet Core (PaCo), HLR/HSS, IMS, and cloud-native deployments on AWS. The candidate will be responsible for end-to-end validation, testing, troubleshooting, and certification of Nokia telecom network functions deployed in cloud environments, ensuring carrier-grade performance, reliability, scalability, and security.
Key Responsibilities
Telecom Network Validation
Validate Nokia Packet Core (PaCo) network functions deployed on AWS infrastructure.
Perform functional, regression, integration, interoperability, and system testing for HLR/HSS and IMS network elements.
Validate subscriber provisioning, authentication, registration, mobility, and policy-related workflows.
Execute VoLTE, VoWiFi, SIP signaling, Diameter signaling, LTE/5G Core, and subscriber management test scenarios.
Develop and execute test plans, test cases, and automation scripts.
Cloud Validation & Performance Testing
Validate telecom workloads running on AWS services, including EC2, EKS, VPC, ELB, Auto Scaling, IAM, and CloudWatch.
Perform performance, scalability, resiliency, failover, and disaster recovery testing.
Validate cloud-native deployments using containers and Kubernetes.
Conduct benchmarking and capacity assessment for telecom applications.
Troubleshooting & Defect Analysis
Analyze logs, traces, packet captures, and signaling messages to identify issues.
Perform root cause analysis of validation failures and collaborate with development teams for resolution.
Debug SIP, Diameter, HTTP/HTTPS, GTP, SCTP, and LTE/5G signaling-related issues.
Track defects and validate fixes through the software release lifecycle.
Automation & CI/CD
Design and maintain automated test frameworks.
Integrate validation activities into CI/CD pipelines.
Utilize automation tools for deployment validation and regression execution.
Documentation & Reporting
Prepare validation reports, defect summaries, and release certification documents.
Participate in design reviews and provide validation sign-off recommendations.
Collaborate with cross-functional teams including development, DevOps, cloud, and customer engineering teams.
Skill Requirements
Telecom Domain
Strong knowledge of:
Nokia Packet Core (PaCo)
HLR/HSS
IMS Core
VoLTE / VoWiFi
LTE EPC and 5G Core Architecture
SIP, Diameter, GTP, SCTP, DNS
Cloud Technologies
Hands-on experience with AWS:
EC2
EKS/Kubernetes
VPC
IAM
ELB
Auto Scaling
CloudWatch
Experience validating cloud-native Network Functions (CNFs) and VNFs.
Validation & Automation
Test planning and execution.
Python/Shell scripting.
Robot Framework, PyTest, or similar automation tools.
Packet analysis using Wireshark/TShark.
Defect management tools such as Jira.
Linux & Networking
Strong Linux administration and troubleshooting skills.
Understanding of TCP/IP, routing, DNS, load balancing, and network security.
Other Requirements
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