RAN Dev Integration IRC307437

GlobalLogic Latinoamérica; Bengaluru; Hybrid; INR 1,200,000 - 2,000,000; Full time

Benefits offered by this job

Flexible work schedules

Work from home

Learning & Development

Health insurance

Annual performance bonuses

Referral bonuses

Job summary

GlobalLogic is seeking a Wireless Domain Tester in Bengaluru to design and execute end-to-end validation for 4G/5G networks. You will translate specifications into robust test strategies, define acceptance criteria, and collaborate with development teams to ensure high‑quality deliverables.

You will work with UE simulators, protocol analyzers, and Linux-based test environments, conducting performance testing, latency analysis, and field-trial support.

Qualifications

• Strong understanding of 3GPP specifications (LTE & 5G NR) and O-RAN architecture.
• Deep knowledge of 4G/5G Layer 2 features (MAC, RLC, PDCP) and radio resource management.
• Mastery of End-to-End Call Flows: Initial Access (RACH), Registration, PDU Session Establishment, Handover (X2/Xn), and Release.

Responsibilities

• Review Requirement specifications and translate them into Test Strategy and Test Plan documents.
• Define acceptance criteria for functional, performance, capacity and system-level test cases.
• Perform End-to-End (E2E) integration testing between CU, DU, and RU; execute functional testing with dev team.
• Conduct System Testing under load and stress; execute complex load scenarios for Cell Capacity and Data Plane Performance.
• Monitor field defects, lead triage, and drive resolutions with Systems and Dev teams.
• Manage and troubleshoot test setups in conducted and OTA environments; operate UE/ RU simulators.

Skills

3GPP specifications

L2 (MAC/RLC)

5G NR

C++

Linux

Debugging

Git

Java

JUnit

LTE

TestNG

Tools

TM500

O-RU Simulators

Wireshark

Log parsing tools

Linux test environments

Job description

3GPP, 4G/5G - Layer2 (RLC, MAC), 5G, C++-Linux, Debugging, Git, Java, JUnit, Linux, LTE, Testng

Wireless Domain Expertise

• Strong understanding of 3GPP specifications (LTE & 5G NR) and O-RAN architecture.
• Deep knowledge of 4G/5G Layer 2 features (MAC, RLC, PDCP) and radio resource management.
• Mastery of End-to-End Call Flows: Initial Access (RACH), Registration, PDU Session Establishment, Handover (X2/Xn), and Release.
• Experience specifically in RAN Capacity and Performance testing. Proven ability to interpret System Design docs and convert them into actionable test scenarios.

Tools & Equipment

• Hands-on experience with multi-vendor UE Simulators (e.g., TM500) and O-RU Simulators.
• Proficiency with protocol analyzers (e.g., Wireshark) and internal log parsing tools.
• Experience with Linux-based test environments.

Preferred Qualifications

• Experience writing test plans for feature validation, regression, and KPI benchmarking.
• Familiarity with defect tracking tools (JIRA) and CI/CD pipelines.
• Experience with Python or Bash scripting for test automation.
• Familiarity with Virtualized RAN (vRAN) and containerized environments (Kubernetes/Docker).
• Prior experience supporting field trials or carrier acceptance testing.
• Strong technical writing skills for creating Test Strategy, Test Plan, and detailed Performance Analysis reports.
• Experience in a customer-facing role or supporting field trials.
• Excellent communication, presentation and inter-perosnal skills

Key Responsibilities

1. Test Strategy & Planning:
   • Review Requirement specifications, Feature Design Documents and translate them into comprehensive Test Strategy and Test Plan documents.
   • Define acceptance criteria for functional, performance, capacity and system-level test cases
2. Integration & Execution:
   • Perform End-to-End (E2E) integration testing, validating the interface between CU, DU, and RU.
   • Execute functional testing in close collaboration with the development team to catch issues early in the cycle.
   • Conduct rigorous System Testing under load and stress conditions.
   • Execute complex load scenarios to validate Cell Capacity (max active UEs) and Data Plane Performance (UDP/TCP throughput).
   • Conduct Latency Analysis and Control Plane performance testing
3. Lab & Equipment Management:
   • Manage and troubleshoot complex test setups in both conducted and OTA (Over-the-Air) environments.
   • Configure and operate industry-standard test equipment, including UE Simulators (e.g., Keysight, Viavi, Spirent) and RU Simulators.
4. Debugging & Triage:
   • Perform first-level log analysis (L1/L2 logs) to isolate issues between the UE, RAN, and Core.
   • Monitor field defects, lead the triage process, and collaborate with Systems and Dev teams to drive resolutions.

What we offer

Exciting Projects: We focus on industries like High-Tech, communication, media, healthcare, retail and telecom. Our customer list is full of fantastic global brands and leaders who love what we build for them.

Collaborative Environment: You Can expand your skills by collaborating with a diverse team of highly talented people in an open, laidback environment — or even abroad in one of our global centers or client facilities!

Work-Life Balance: GlobalLogic prioritizes work-life balance, which is why we offer flexible work schedules, opportunities to work from home, and paid time off and holidays.

Professional Development: Our dedicated Learning & Development team regularly organizes Communication skills training(GL Vantage, Toast Master),Stress Management program, professional certifications, and technical and soft skill trainings.

Excellent Benefits: We provide our employees with competitive salaries, family medical insurance, Group Term Life Insurance, Group Personal Accident Insurance , NPS(National Pension Scheme ), Periodic health awareness program, extended maternity leave, annual performance bonuses, and referral bonuses.

Fun Perks: We want you to love where you work, which is why we host sports events, cultural activities, offer food on subsidies rates, Corporate parties. Our vibrant offices also include dedicated GL Zones, rooftop decks and GL Club where you can drink coffee or tea with your colleagues over a game of table and offer discounts for popular stores and restaurants!

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.

You can find more information about how GlobalLogic processes your personal data and what your rights are in the Recruitment Privacy Notice.