Staff Engineer

As a Staff Engineer, you will be responsible for driving end-to-end system integration, feature validation, and release readiness for Wireless RAN products. You will lead complex integration activities, provide technical leadership within the team, collaborate with development and verification teams, and ensure timely delivery of high-quality feature and maintenance releases. The role requires deep expertise in wireless systems, strong debugging skills, and ownership of cross-functional technical execution. 

• Own system integration and validation activities for 4G/5G RAN products and solutions. 
• Lead integration of Firmware (FW), FPGA, Layer 1, Layer 2, Layer 3, and OAM components to enable Integrated SW build for required feature bring-up and product verification.
• Review product requirements and derive integration and validation scope for feature and maintenance releases.
• Perform end-to-end testing of features: LTE and NR features including Carrier Aggregation, MIMO, VoLTE, EN-DC, and mobility scenarios, etc.
• Analyze protocol logs, KPI data, and system traces to identify and resolve defects. 
• Work closely with development, architecture, product management, and customer support teams for issue resolution and feature acceptance. 
• Define SIT test strategies, test plans, and validation methodologies for new product releases. 
• Lead root cause analysis and provide technical guidance for complex integration issues. 
• Contribute to test automation, continuous integration, and quality improvement initiatives. 
• Support customer trials, field testing, and production deployment activities.
• Drive continuous improvement in system integration processes, tools, 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.
• Strong understanding of RAN architecture and LTE/NR Layer 1, Layer 2, and Layer 3 protocols. 
• Hands-on experience in system integration, feature validation, and troubleshooting. 
• Strong Knowledge in LTE/NR call flows, mobility procedures, and performance optimization.
• Experience with FAPI-based integrations, front-haul debugging, and O-RAN interfaces.
• Experience with protocol analyzers, network tracing, and log analysis tools. 
• Strong expertise in debugging system-level DL and UL timing issues across DU, RU, and UE interfaces, including synchronization, scheduling, HARQ timing, frame alignment, latency analysis, and front-haul timing-related anomalies. 
• Hands-on experience in analyzing and resolving LTE/5G NR timing issues using protocol logs, FAPI traces, Layer 1 logs, OTA captures, and O-RAN/eCPRI front-haul diagnostics. 
• Strong Linux knowledge and scripting skills in Python & Shell
• Excellent debugging, analytical, and problem-solving skills.

Desired Skills:

• Hands-on experience with UE simulators such as TM500, Keysight, or equivalent test platforms. 
• Good understanding of Core Network configuration and integration for LTE/5G testing. 
• Exposure to O-RAN architecture and multi-vendor interoperability testing with CU/DU. 
• Experience in CI/CD, build integration, test automation, and continuous validation frameworks. 
  
   

• Experience: 11 to 14 yrs+ years of experience in Wireless Communications, LTE, and 5G NR technologies 
• Education: B.Tech/BE (CSE/ECE) or any other equivalent degree
   

Tejas Networks is a global broadband, optical and wireless networking company, with a focus on technology, innovation and R&D. We design and manufacture high-performance wireline and wireless networking products for telecommunications service providers, internet service providers, utilities, defence and government entities in over 75 countries. Tejas has an extensive portfolio of leading-edge telecom products for building end-to-end telecom networks based on the latest technologies and global standards with IPR ownership. We are a part of the Tata Group, with Panatone Finvest Ltd. (a subsidiary of Tata Sons Pvt. Ltd.) being the majority shareholder. Tejas has a rich portfolio of patents and has shipped more than 900,000 systems across the globe with an uptime of 99.999%. Our product portfolio encompasses wireless technologies (4G/5G based on 3GPP and O-RAN standards), fiber broadband (GPON/XGS-PON), carrier-grade optical transmission (DWDM/OTN), packet switching and routing (Ethernet, PTN, IP/MPLS) and Direct-to-Mobile and Satellite-IoT communication platforms. Our unified network management suite simplifies network deployments and service implementation across all our products with advanced capabilities for predictive fault detection and resolution. As an R&D-driven company, we recognize that human intelligence is a core asset that drives the organization’s long-term success. Over 60% of our employees are in R&D, we are reshaping telecom networks, one innovation at a time.

Diversity and Inclusion Statement:

• Tejas Networks is an equal opportunity employer. We celebrate diversity and are committed to creating all inclusive environment for all employees.
• We welcome applicants of all backgrounds regardless of race color, religion, gender, sexual orientation, age or veteran status.
• Our goal is to build a workforce that reflects the diverse communities we serve and to ensure every employee feels valued and respected.