Varun Sai Gattamaneni
Hardware Engineer @Tata Consultancy Services
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WORK HISTORY
Hardware Engineer @Tata Consultancy Services
Designed high-performance hardware platforms for data center switches and routers, selecting ASICs and FPGAs and implementing 56G/112G PAM4 SerDes to achieve multi-terabit throughput and low-latency performance.• Developed and validated high-speed digital designs including switch fabrics, DDR4/DDR5 memory, PCIe, and 100G–400G Ethernet interfaces, performing signal integrity (SI) and power integrity (PI) analysis using industry-standard simulation tools.• Hands-on experience with servers and PCs, executing board bring-up, hardware debugging, PCIe high-speed interface validation, and diagnostics/test development in both Linux and Windows environments.• Engineered robust power delivery and thermal solutions, optimizing PDNs, PoE/PoE++ implementation, and airflow management to ensure reliable 24/7 operation in high-availability systems.• Executed system-level validation, performance benchmarking, and optical module interoperability testing; performed detailed root cause analysis to deliver production-ready, carrier-grade hardware.• Collaborated closely with firmware and software teams during hardware bring-up, defining BMC, CPLD, and system management interfaces for monitoring, hot-swap control, and remote diagnostics.• Led hardware compliance and certification efforts, ensuring designs met UL, CE, EMC/EMI, NEBS, and ETSI standards for global deployment.• Utilized strong Python and Shell scripting skills to automate test workflows, debug processes, and validation tasks in high-tech/NPI environments.• Applied working knowledge of Ethernet, InfiniBand, PCIe, USB, HDMI, I2C, and SPI protocols for board-level integration and troubleshooting.• Proficient in using advanced lab equipment including high-speed oscilloscopes, logic analyzers, protocol analyzers, and diagnostic tools for validation and failure analysis.
EDUCATION
Rowan University
Master's degree, Computer Science
ABOUT VARUN SAI GATTAMANENI
I am a Hardware Engineer with ~4 years of experience designing, validating, and delivering high-performance data center switching and routing platforms for carrier-grade and enterprise environments. I specialize in ASIC/FPGA-based system design, high-speed SerDes (56G/112G PAM4), and 100G–400G Ethernet interfaces for low-latency, multi-terabit networks.My expertise spans high-speed PCB design, signal and power integrity (SI/PI) analysis, PDN optimization, and thermal engineering to ensure reliable 24/7 operation of always-on systems. I have hands-on experience with DDR4/DDR5 memory, switch fabrics, optical modules (QSFP-DD, OSFP), and board-to-system-level bring-up, validation, and debugging.I work closely with firmware and software teams on BMC, CPLD, and FPGA-based control logic, enabling hardware management, hot-swap, power sequencing, and intelligent fault detection. I have led hardware through global compliance and certification processes including UL, CE, EMI/EMC, NEBS, and ETSI, delivering production-ready platforms with high reliability and scalability.Driven by technical depth and system-level thinking, I enjoy solving complex hardware challenges, collaborating across teams, and building robust, high-performance networking hardware that scales for modern data centers.
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