Senior Wireless Network Engineer

3 days ago

Bengaluru, Karnataka, India Tejas Networks Full time
About Us

We are 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.

Our company 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 part of the Tata Group, with Panatone Finvest Ltd. (a subsidiary of Tata Sons Pvt. Ltd.) being the majority shareholder.

We have a rich portfolio of patents and have 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.

Why Work with Us

We are on a journey to connect the world with some of the most innovative products and solutions in the wireless and wireline optical networking domains. You will have the unique opportunity to work with cutting-edge technologies, alongside some of the industry's brightest minds. From 5G to DWDM/ OTN, Switching and Routing, we work on technologies and solutions that create a connected society.

Our solutions power over 500 networks across 75+ countries worldwide, and we're constantly pushing boundaries to achieve more. If you thrive on taking ownership, have a passion for learning and enjoy challenging the status quo, we want to hear from you.

Job Description

We are seeking a highly skilled Senior Wireless Network Engineer to join our team. As a Staff Engineer, you will be responsible for drive testing and sustenance various Network Functions and/or platform for our Mobile Packet Core (EPC and 5GC). You'll lead technical initiatives, mentor team members and collaborate closely with cross functional teams to drive innovation and ensure high-quality deliverables.

Duties and Responsibilities
  • Develop, execute, and validate test plans for 4G EPC components including Serving Gateways (SGW), Packet Gateways (PGW), Mobility Management Entity (MME), and Home Subscriber Server (HSS). Ensure interoperability and functionality of these components in various network scenarios.
  • Design and implement test plans for 5G Core network functions, including Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF). Validate 5G NR (New Radio) integration and end-to-end functionality.
  • Test and validate protocols used in 4G and 5G networks, such as GTP, SCTP, and HTTP/2. Analyze protocol exchanges to ensure correct implementation and performance.
  • Conduct performance tests for both 4G and 5G core networks. Measure metrics such as throughput, latency, and scalability. Identify performance bottlenecks and work with engineering teams to resolve them.
  • Develop and maintain automated test scripts and frameworks for both 4G and 5G core testing. Utilize scripting languages (e.g., Python, Bash) and automation tools to improve testing efficiency.
  • Identify, document, and track defects and performance issues. Collaborate with development and operations teams to troubleshoot and resolve issues effectively.
  • Create detailed test documentation, including test plans, cases, and reports. Provide clear and concise communication on test results and issues to stakeholders.
  • Work closely with cross-functional teams including software developers, network architects, and product managers to ensure comprehensive testing and integration of core network components.
  • Stay abreast of the latest advancements in mobile core technologies (both 4G and 5G). Suggest and implement improvements to testing methodologies and tools.

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