What are the responsibilities and job description for the 4G/5G RAN Test Engineer III position at TeleWorld Solutions Inc?
Overview
TeleWorld Solutions is seeking a RAN Test Engineer III to join our team! Join a cutting-edge wireless engineering team driving the future of connectivity. As a RAN Test Engineer III, you will play a critical role in validating next-generation LTE and 5G NR Radio Access Network (RAN) technologies. This role sits at the intersection of product validation, performance engineering, and customer engagement, ensuring seamless interoperability and best-in-class network performance.
You’ll work hands-on in lab and customer environments, collaborating with global teams to bring innovative wireless solutions to life.
Who We Are: The Architects of What Connects Us
You find the signal in the noise of data. We build the signal itself.
We are TeleWorld Solutions, and we are the strategic backbone for the world's most ambitious wireless networks. We're not just consultants; we're the engineers, designers, and problem-solvers that operators, OEMs, and tower giants trust to bring their boldest visions to life.
Our playground is the invisible architecture of connection-from vast macro networks to the hyper-precise world of DAS, Small Cells, and Wi-Fi. With a legacy of hundreds of thousands of successful implementations, we help our clients navigate the entire lifecycle of their network: from the first line of a design to the final optimization, and every critical decision about performance and value in between.
Why does this matter to you?
The complex data you will master-the CDRs, network KPIs, and customer signals-flows from the very infrastructure we design and optimize. You won't just be analyzing abstract numbers; you'll be interpreting the digital heartbeat of networks that we helped bring to life. Your insights will directly influence the next generation of those networks.
Here, your work as a data storyteller is powered by deep, tangible engineering excellence. You provide the "what" and "why." We provide the "how" on a global scale.
Welcome to the engine room of connection. Let's build what's next
Responsibilities
Product & Feature Validation
- Lead end-to-end validation of LTE & 5G RAN products focusing on:
- Air interface performance
- Call processing
- End-to-end system behavior
- Translate product and feature requirements into comprehensive system-level test cases
- Execute validation in customer labs and internal environments
Performance Analysis & Optimization
- Perform deep analysis of:
- 4G/5G KPIs and performance metrics
- Protocol stack behavior (PHY → PDCP)
- Evaluate new product features and software releases for performance readiness
- Identify optimization opportunities and drive improvements
Testing & Troubleshooting
- Execute and manage feature validation, IOT testing, and system integration testing
- Conduct root cause analysis and troubleshoot complex RAN issues
- Utilize advanced test tools such as:
- XCAL, QXDM, Wireshark
- Channel Emulators, Spectrum Analyzers, Signal Generators
Customer Engagement & Delivery
- Present validation results, reports, and insights to customers
- Lead technical review sessions and product demonstrations
- Educate customers on new features, capabilities, and best practices
- Ensure customer commitments and delivery timelines are successfully met
Cross-Functional Collaboration
- Partner with internal teams across:
- Engineering
- Logistics
- Samsung HQ & regional organizations
- Support new product rollouts, upgrades, and deployments
- Contribute to MOP validation and network element management activities
Technical Leadership
- Recognized as a validation expert, capable of driving solutions in complex technical environments
Executive Communication
- Confident presenting to customers, leadership, and global stakeholders
Problem Solving in Ambiguity
- Thrives in fast-paced environments with shifting priorities
Strong analytical mindset with the ability to navigate complex systems and organizations
Qualifications
Education & Experience
- Bachelor’s degree in Electrical Engineering, Computer Science, or related field (required)
- 8–10 years of relevant experience in wireless/RAN testing
- OR Master’s degree with 6 years of experience
Technical Expertise
- Strong knowledge of 4G LTE & 5G NR technologies, including:
- DL/UL scheduling
- Power control
- Beamforming
- MIMO
- EN-DC
- Deep understanding of:
- RAN architecture & air interface technologies
- Protocol stack: PHY, MAC, RLC, RRC, PDCP
- Experience with:
- 3GPP standards and release cycles
- System testing: validation, test planning, parameter tuning
- Lab and IOT testing environments
- EMS systems and network element management
- Software upgrades, MOP validation
- Familiarity with:
- NB-IoT, eMTC
- S1 / X2 interfaces
- Core RAN integration
Nice to Have
- Exposure to software development or automation scripting
- Experience working in multi-vendor environments (Samsung, Ericsson, Nokia, etc.
Join Our Veteran-Friendly Team:
Are you a veteran or a veteran spouse with expertise in telecommunications? Join our team at TeleWorld Solutions, where we value your military experience and provide great benefits. We invite all veterans and veteran spouses to bring their skills and dedication to our team.
TeleWorld Solutions is committed to employing a diverse workforce and provides Equal Employment Opportunity for all individuals regardless of race, color, religion, gender, age, national origin, marital status, sexual orientation, gender identity, status as a protected veteran, genetic information, status as a qualified individual with a disability, or any other characteristic protected by law.