Description

As a Principal Engineer, you will be the technical authority for system integration across multiple wireless product releases and technology domains. You will define integration strategies, influence product architecture from an integration perspective, drive complex technical problem-solving, and provide leadership across engineering organizations. You will play a critical role in ensuring scalability, stability, interoperability, and deployment readiness of Wireless 4G/5G RAN solutions.

Responsibilities

- Define integration architecture, validation strategy, and release qualification plans for feature and maintenance releases.
- Drive integration of FW, FPGA, L1, L2, L3, OAM, DU, and RU components to enable product verification and deployment readiness.
- Provide technical leadership for bring-up and validation of advanced LTE and NR features, including CA, MIMO, VoLTE, EN-DC, mobility, and performance enhancements.
- Lead cross-functional debugging and root cause analysis of complex system, interoperability, and performance issues.
- Drive resolution of system-level DL/UL timing, synchronization, scheduling, latency, and front-haul related issues.
- Collaborate with Architecture and Development teams to influence feature design, integration readiness, and product quality.
- Define SIT methodologies, automation strategies, quality metrics, and best practices across programs.
- Lead interoperability validation across DU, RU, CU, Core Network, UE, and multi-vendor O-RAN ecosystems.
- Support customer trials, field deployments, escalations, and critical issue management.
- Mentor engineers and provide technical guidance on wireless protocols, integration methodologies, and debugging techniques.
- Drive continuous improvement of integration processes, tools, automation frameworks, and development infrastructure.

Mandatory Skills:





- Working in 4G/5G eNB/gNB product with strong involvement in integrating L1,L2,L3 & OAM components as a SIT feature/maintenance release .
- Solid experience in integrating and validating FW, FPGA, L1, L2, L3, OAM, DU, and RU components for feature and maintenance releases.
- Deep understanding of LTE/NR RAN architecture, protocol stack, call flows, mobility procedures, and performance optimization techniques.
- Proven expertise in end-to-end system integration, feature validation, and release qualification of eNB/gNB products.
- Strong knowledge of O-RAN architecture, FAPI interfaces, front-haul protocols, and DU-RU interoperability.
- Expert-level debugging skills using protocol analyzers, FAPI traces, Layer 1 logs, OTA captures, KPI analysis, and system traces.
- Strong expertise in debugging system-level DL/UL timing issues, synchronization, scheduling, HARQ processes, frame alignment, latency, and throughput optimization.
- Hands-on experience analyzing and resolving issues across DU, RU, UE, and Core Network interfaces.
- Strong Linux expertise with scripting and automation skills using Python and Shell.
- Excellent technical leadership, analytical, problem-solving, and stakeholder management skills.

Desired Skills:

- Experience with UE simulators such as TM500, Keysight, or equivalent LTE/5G test platforms.
- Good understanding of LTE/5G Core Networks and end-to-end system validation.
- Experience with CI/CD, test automation, continuous validation, and large-scale integration environments.
- Exposure to cloud-native RAN, virtualization, and containerized deployments.
- Experience leading customer-facing programs, field trials, and multi-vendor interoperability activities.

Qualifications

- Experience: 15 to 18 yrs from Wireless Communications, LTE, and 5G NR product development, system integration, or verification.
- Education: B.Tech/BE (CSE/ECE) or any other equivalent degree

📌 Principal Engineer (Bengaluru)
🏢 Tejas Networks
📍 Bengaluru