ASIC Engineer

Cisco is hiring an ASIC Engineer in Pune.

Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. Meet the Team Cisco’s Client Optics Group (COG) designs & delivers the high-speed optical transceivers, and platforms that power Cisco's core data center networking solutions. We specialize in the design and integration of cutting-edge IM/DD optics and silicon photonic platforms that enable customers to deploy industry-leading optical technologies within data center with unprecedented speed, capacity, and reliability. Come join us and take part in shaping COG’s ground-breaking o

Responsibilities

We are looking for a talented and experienced Digital Design Engineer to join the Silicon One Optics Group (S1O) Digital Design Team and drive the digital design and integration of Cisco’s silicon photonics integrated circuits for next generation 100G, 200G, and 400G per lambda solutions. In this role, you will own RTL design, and subsystem integration of digital logic used in high-performance optical interconnect products. You will work closely with analog/mixed-signal designers, verification engineers, physical design, DFT, firmware, packaging, process, and product engineering teams to develop robust, high-quality, and manufacturable designs that meet performance, power, reliability, and production requirements. With a strong understanding of digital systems, RTL development, mixed-signal integration, ASIC/SoC design flow, and implementation readiness, you will participate in all phases of digital design from concept through tapeout and production support. You will drive block-level digital development for control functions, interfaces, receive/transmit paths, and integrated high-speed interface circuitry within a silicon photonics module, CPO (Co-Packaged Optics) engine.

Specific responsibilities include:

• Own the RTL design of complex digital blocks and subsystems.
• Drive RTL design and integration for control functions, high speed interfaces, and receive/transmit paths.
• Own and review RTL quality, ensuring best practices in coding style, reuse, maintainability, and design robustness.
• Document block-level and top-level design specifications, interface definitions, and implementation plans.
• Work across analog and digital interfaces to ensure seamless mixed-signal integration.
• Collaborate closely with verification teams to define test plans, review coverage, debug issues, and ensure design intent is fully verified.
• Support full-chip integration involving high-speed IPs such as D2D IP, SerDes XSR, and integrated drivers/TIA.
• Support synthesis, timing closure, power optimization, low-power intent, and design-for-test (DFT) considerations.
• Develop scripts and automation flows for analysis, design checks, QoR tracking, and reporting using Python, Perl, Tcl, Shell, or C.
• Independently debug simulation and integration issues and identify root causes of design bugs.
• Support firmware/C coding activities related to CPU subsystem functionality and integration, where needed.
• Contribute to FPGA prototyping and validation activities where applicable.

Preferred qualifications

• FPGA experience is a plus
• Experience supporting lab bring-up, post-silicon validation, or ATE enablement is a plus.
• Strong analytical, problem-solving, teamwork and debugging skills.

Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you.

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