Principal Software Engineer

As a Principal Engineer on the Annapurna Labs analog/mixed-signal design team, you will be the technical authority for analog IP that powers AWS's custom silicon portfolio. You will architect, design, and deliver high-performance analog IP blocks - including high-speed SerDes/PHY, PLLs, data converters, power management circuits, and I/O interfaces - across advanced CMOS nodes for products like Graviton, Nitro and Trainium. You will drive IP reuse and portability strategies, lead silicon bring-up campaigns, and set the technical direction for the analog IP roadmap.

Key job responsibilities

• Drive execution: Lead the full design cycle from architecture through silicon validation - spec, schematic, layout, simulation, tapeout, and bring-up.
• Collaborate cross-functionally: Partner with SoC architecture, digital design, physical design, DFT, packaging, and system teams to integrate analog IP seamlessly.
• Set technical direction: Define design methodologies, flows, and best practices. Evaluate and select EDA tools, PDKs, and foundry processes.
• Innovate at scale: Develop IP that is reusable, portable across process nodes, and designed to meet the performance, power, and area (PPA) needs of multiple products simultaneously.

Basic qualifications

• B.Sc. in Electrical Engineering (advanced degree preferred)
• 15+ years of hands-on analog/mixed-signal design experience in advanced CMOS nodes (7nm and below)
• Direct experience designing die-to-die (D2D) interconnect PHY - standard and/or advanced package
• Deep expertise in one or more: high-speed SerDes/PHY, PLL/DLL, data converters, LDOs/power management, or I/O interfaces
• Track record of successful tapeouts and silicon bring-up in volume production
• Experience with design methodologies for IP portability and reuse across multiple process nodes
• Strong understanding of semiconductor physics, device modelling, and process technology

Preferred qualifications

Experience with integrated voltage regulators (IVR) for high-performance compute

• Experience leading analog IP development in a hyperscaler or large semiconductor company
• Familiarity with GPIO design for multi-standard (LPDDR, PCIe, ETH) compatibility
• Background in developing reusable IP platforms with configurable/parameterized architectures
• Experience in cloud/data center silicon or high-performance computing
• Strong publication record or patents in analog IC design