Product Architect

Tejas Networks Ltd.; Bengaluru; On-site; INR 3,500,000 - 7,000,000; Full time

Job summary

Tejas Networks Ltd. in Bengaluru is seeking a Product Architect to design and implement complex software systems for 4G/5G products, ensuring performance, scalability and security while aligning with business goals.

You will lead end-to-end integration and collaborate with software, hardware, verification, field engineering and product teams to drive robust releases and roadmaps.

Qualifications

• Experience in designing and delivering complex RF/software architectures for 4G/5G systems.
• Proven ability to integrate FW, FPGA, RU/L1/L2/L3, OAM and transport components into stable releases.
• Strong knowledge of LTE and NR protocol stacks across PHY, MAC, RRC, NGAP and related layers.

Responsibilities

• Own end-to-end system integration activities for 4G eNodeB and 5G gNodeB products.
• Define integration strategy, validation scope, and release readiness criteria based on product roadmap.
• Lead integration of FW, FPGA, L1, L2, L3, OAM, RU, and transport components into stable releases.
• Drive architectural decisions for system-level feature enablement, performance optimization, scalability, and maintainability.
• Collaborate with software, hardware, verification, field engineering, and product management teams.
• Analyze customer/field/verification issues and provide system-level solutions and roadmaps.
• Lead root cause analysis and debugging of complex system issues including timing, synchronization, and interoperability.
• Define and guide verification, field trial, and customer acceptance test strategies; track issues to closure.
• Mentor engineering teams on system architecture, integration methodologies, and best practices.

Skills

RAN software architecture

LTE/NR protocol design

FW/FPGA integration

System-level debugging

Open RAN / FAPI

Linux performance tuning

Education

B.Tech/BE (CSE/ECE)

Job description

Job Description

As a Product Architect you will be responsible for architectural designing and developing the structure of complex software systems, ensuring they meet performance, scalability, and security requirements. You'll collaborate with stakeholders to align architectural decisions with business goals and technical strategies. Also, you will contribute in delivery including planning, requirement analysis, design, implementation, validation & verification.

Responsibilities

• Own end-to-end system integration activities for 4G eNodeB and 5G gNodeB products.
• Define integration strategy, validation scope, and release readiness criteria based on product roadmap and feature increments.
• Lead integration of FW, FPGA, L1, L2, L3, OAM, RU, and transport/networking components into stable product releases.
• Drive architectural decisions for system-level feature enablement, performance optimization, scalability, and maintainability.
• Collaborate closely with cross-functional teams including software development, hardware, verification, field engineering, and product management.
• Analyze customer, field, and verification issues; provide system-level solutions and influence delivery roadmaps.
• Lead root cause analysis and debugging of complex system issues, including DL/UL timing, synchronization, interoperability, and protocol-related problems.
• Define and guide verification, field trial, and customer acceptance test strategies. Track internal and external issues to closure, ensuring alignment across development and support teams.
• Mentor engineering teams on system architecture, integration methodologies, and best practices.

Mandatory Skills

• Strong expertise in RAN software architecture, protocol stack design, feature integration, and release management.
• Hands-on experience in integrating and troubleshooting FW, FPGA, RU, L1, L2, L3, OAM, and transport/networking components.
• Deep knowledge of LTE and NR protocols across PHY, MAC, RLC, PDCP, SDAP, RRC, NGAP, X2AP, XnAP, S1AP, and F1AP layers.
• Strong experience in system-level debugging and root cause analysis of complex software issues across multiple protocol layers.
• Proven expertise in debugging:
• DL/UL timing alignment and synchronization issues.
• Call setup, attach, handover, mobility, and bearer management failures.
• Throughput, latency, scheduler, QoS, and radio performance issues.
• Carrier Aggregation (CA), MIMO, VoLTE, ENDC, NSA/SA, and Dual Connectivity features.
• Interoperability issues involving RU, DU, CU, UE, and Core Network elements.
• Strong understanding of PHY layer procedures including timing advance, HARQ, beamforming, MIMO, PRACH, synchronization, and scheduler behavior.
• Expertise in analyzing protocol logs, call traces, KPIs, core dumps, memory leaks, crash dumps, Wireshark traces, front-haul captures, and system debug logs.
• Hands-on experience with Open RAN architecture including FAPI, eCPRI, O-RAN M-Plane, RU integration, and front-haul troubleshooting.
• Strong knowledge of Linux internals, multi-threaded software debugging, IPC mechanisms, performance profiling, and resource optimization.
• Experience in software architecture reviews, design trade-off analysis, and technical risk assessment.
• Strong understanding of SDLC, Agile methodologies, CI/CD pipelines, automation frameworks, and release governance.
• Ability to define integration architecture, feature validation strategies, and system verification roadmaps.
• Excellent cross-functional leadership skills with proven experience working with development, hardware, verification, field, and customer support teams.

Desired Skills

• Experience with UE simulators and test platforms such as TM500, Keysight, Spirent, or equivalent.
• Knowledge of EPC/5GC configuration and end-to-end RAN validation.
• Understanding of Continuous Integration/Continuous Deployment (CI/CD) and automation frameworks.
• Exposure to cloud-native RAN, virtualization, and container-based deployments.
• Familiarity with performance benchmarking, capacity validation, and interoperability testing.
• Experience in customer-facing technical engagements and field deployment support.

Qualifications

• Experience: 18+ from Wireless Telecommunications, Networking, or RAN product development.
• Education: B.Tech/BE (CSE/ECE) or any other equivalent degree

About Us

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.

About The Team

Tejas Networks provides scalable and innovative 4G/5G solutions. Our portfolio encompasses Radio Access Network solutions including Remote Radio Heads (RRHs) or Radio Units (RUs), Massive MIMO Radios (Advanced Antenna Systems, AAS) and Base Band Units (BBUs), Distributed Units (DUs) and Centralized Units (CUs), Mobile Packet Core and an Advanced Network management solution. Tejas Networks has invested in Wireless product development since 2012 with a vision to create globally deployable telecom solutions. Several of the key components developed by the Wireless R&D team have been installed and commissioned across multiple continents. We are an active partner for 4G and 5G in the Indian Ecosystem and have significantly contributed to India’s standardization efforts in 3GPP and TSDSI. The wireless team has over 100 patents. As part of the Wireless team, you will work on developing products for next generation wireless systems. Product Lifecycle Management at Tejas are the forefront runners taking the world class solutions to our customers. Tejas solutions are unique with inhouse Radio designs developed by seasoned experts in ASIC chip design involving 4G LTE Radio and 5G NR Radios. Tejas offers best Network Management solution for the entire portfolio of 4G and 5G device ecosystem management. Tejas Wireless offering include an advanced Mobile Packet Core, solution is critical for ensuring seamless, high-performance connectivity. Engineering Program Management, which plays a crucial role in overseeing and coordinating the successful execution of engineering projects or programs. All Tejas Wireless solutions are monitored by Network Support Group who constantly handle various aspects like validation of the solutions.