Top 3 Engineer unix ims core Jobs

Sr. VoLTE/IMS Test Engineer – 5G/LTE Core Networks-Onsite
Cognizant —Warrenville, IL
- $84,000 - $117,000 a year
- Full-time
- Hybrid work
- 6 years
- Senior level
- Python
- Paid parental leave
- Employee stock purchase plan
Modem System Test Engineer - 6G/5G Data and Networking
Qualcomm —San Diego, CA
- $89,000 - $133,600 a year
- Computer science
- Computer Science
- Mid-level
Oracle Identity Management (OIM) & Governance (OIG) Administrator (IT Security Specialist 3) - Provisional
The City University of New York (CUNY) —New York, NY
- $104,304 - $135,000 a year
- Part-time
- Computer science
- Computer Science
- System design

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Sr. VoLTE/IMS Test Engineer – 5G/LTE Core Networks-Onsite
Cognizant —Warrenville, IL
Design & Troubleshooting experience in VoLTE E2E Call Flows and RCA Debugging Skills and IP Network design, planning and optimization.
$84,000 - $117,000 a year
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Sr. VoLTE/IMS Test Engineer – 5G/LTE Core Networks-Onsite

Cognizant -
Warrenville, IL

Apply Now

Job Details

Full-time
$84,000 - $117,000 a year

Benefits

Paid parental leave
Employee stock purchase plan
Paid holidays
Disability insurance
Health insurance
Dental insurance
401(k)
Paid time off
Parental leave
Vision insurance
Life insurance

Qualifications

Network topology design
System troubleshooting
Cellular networks
Engineering development testing
Performance optimization
Automation
Telecommunications network performance monitoring
5G
Wireshark
Network monitoring tools
Root cause analysis
Benchmarking
Scalability and Performance Testing (system development)
Engineering automation testing
Telecommunications testing equipment
Debugging

Full Job Description

Cognizant is looking for a test lead engineer that has 6-8 years experience SIP, IMS Core, VoLTE/CVoIP call flow process for testing and validation. Following skills/experience required:

Strong knowledge in 5G/LTE/UMTS
VoLTE/IMS Network Performance and Capacity Test and IMS Nodes Performance Benchmarking Activities.
Extensive Hands on experience with VoLTE/IMS Call Processing and VoLTE/IMS Supplementary Services.
Need to have hands on experience IMS Related Protocols Signaling Analyzing (VoLTE/IMS, VOIP Call Flows (SIP/SDP/H.248 etc.) using Iris Analyzer and RADCOM .
Working experience on IMS interworking entities (BGCF, MGCF, MRFC, MRFP, AGW, IBCF, TrGW) and interfaces.
VOIP / IMS call flows (expertise in SIP based call flows) - Voice and Supplementary Services.
Experience with LTE core system interfaces and protocols such as S1-MME, S1-U, S6a, S11, S5/S8, Rx, NAS, S1-AP, RRC, GTPv2c, GTP-U, SGs-AP, Gn, Gx, Ga, Sy is desired
In-depth understanding of Telecom Protocols and technologies like GTPV2,SIP, RTP, IPv4 and IPv6, DIAMETER, DNS, H.248, IPSec, TCP-IP, LDAP, etc.
Design & Troubleshooting experience in VoLTE E2E Call Flows and RCA Debugging Skills and IP Network design, planning and optimization
Scripting experience on any language like Python/Unix/Selenium and hands on experience on Android adb command for automation and taking device logs
Tool Experience on Wireshark,QXDM,RADCOM,IXIA,EXPO,LANDSLIDE etc

About Cognizant’s IoT Practice:
Intelligent, IoT-enabled products will soon result in the proliferation of data and disrupt virtually all industries. To be successful, both large and small companies must leverage IoT capabilities by designing modern products that fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products will revolutionize experiences and result in exciting, transformative outcomes. Without human-centered thinking, connected products are just standalone things—but with it, our modern connected products facilitate a unified way of life enjoyed by all.

Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

Applications will be accepted until June 4th , 2026
LI#- #LI-SC6
Compensation & Benefits
$84,000 – $117,000 per year
Bonus + Comprehensive Benefits
Additional Information
Onsite role

️ Visa sponsorship is not available now or in the future. Candidates requiring sponsorship will not be considered.

Benefits : Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

Medical/Dental/Vision/Life Insurance
Paid holidays plus Paid Time Off
401(k) plan and contributions
Long-term/Short-term Disability
Paid Parental Leave
Employee Stock Purchase Plan

Apply Now

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engineer unix ims core jobs

Sr. VoLTE/IMS Test Engineer – 5G/LTE Core Networks-Onsite

Modem System Test Engineer - 6G/5G Data and Networking

Oracle Identity Management (OIM) & Governance (OIG) Administrator (IT Security Specialist 3) - Provisional

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