PIC Design Engineer at Celestial AI

Santa Clara, California, United States

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Not SpecifiedCompensation

Mid-level (3 to 4 years), Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Semiconductors, Photonics, AI HardwareIndustries

Requirements

Good grasp of fundamental photonics concepts and engineering design principles
Experience with Silicon Photonics Process Design Kits and related best practices in the layout of photonic devices, sub-systems and full PICs
Experience with physical design packages (Cadence, Siemens Mentor, Klayout or similar), including layout automation within these tools using SKILL, Python or similar
Experience with layout verification tools for DRC, ERC and LVS (Calibre, Pegasus or similar)
Familiarity with SI and PI-aware electrical routing for analog and digital blocks (strong plus)
PhD in engineering or physics with concentration/experience in integrated photonics
Self-starter
Creativity in problem-solving with strong attention to detail
Thrives in a highly collaborative and dynamic work environment
Excellent oral and written communication skills

Responsibilities

Contribute to the design and layout of very large-scale Silicon Photonic ICs (PICs) that interface directly with co-designed ASICs
Contribute to PIC delivery, all the way from floor-planning and top-level block placement to micro-architecture, optical & electrical routing, and back-end DRC and LVS verification
Work in conjunction with broader analog, digital and packaging teams to drive PIC physical design in accordance with product requirements related to opto-electronic performance, signal integrity (SI) & power integrity (PI)
Work closely with the rest of the Photonics team to optimize layout flows and add to existing software base for automated design and verification

Skills

Key technologies and capabilities for this role

Silicon PhotonicsPIC DesignIC LayoutSilicon Photonic ICsASIC IntegrationTSMCOptical InterfacesChipletsOptical Interposers2.5D PackagingPhotonic Fabric

Questions & Answers

Common questions about this position

What is the salary range for the PIC Design Engineer position?

This information is not specified in the job description.

Is this PIC Design Engineer role remote or onsite?

This information is not specified in the job description.

What skills are required for the PIC Design Engineer role?

Candidates need experience in design and layout of Silicon Photonic ICs (PICs), including floor-planning, top-level block placement, micro-architecture, optical & electrical routing, and back-end DRC and LVS verification. A good grasp of fundamental photonics concepts is required, along with the ability to work with analog, digital, and packaging teams on opto-electronic performance, signal integrity, and power integrity.

What is the team structure like for this PIC Design Engineer position?

You will work as a key part of the Photonics team, in conjunction with broader analog, digital, and packaging teams to drive PIC physical design.

What makes a strong candidate for the PIC Design Engineer role?

Strong candidates have specialized skills in Silicon Photonic IC design and layout, experience optimizing layout flows and automating design/verification software, and the ability to collaborate across photonics, analog, digital, and packaging teams.

Celestial AI

Optical interconnects for high-performance computing

About Celestial AI

Celestial AI focuses on high-performance computing for hyperscale data centers with its technology called Photonic Fabric™, an optical compute interconnect. This technology reduces DRAM requirements by up to 35% and lowers power consumption while increasing bandwidth capacity, which is essential for multi-tenant cloud environments. Additionally, it allows for the disaggregation of High Bandwidth Memory (HBM) using optics instead of traditional connections. The goal is to provide optical connectivity that supports advancements in Generative AI and complex workloads.

Sunnyvale, CaliforniaHeadquarters

2020Year Founded

$329.6MTotal Funding

SERIES_CCompany Stage

Data & Analytics, Hardware, AI & Machine LearningIndustries

51-200Employees

Benefits

Health Insurance

Vision Insurance

Dental Insurance

Life Insurance

Company Equity

Risks

Emerging competition from companies like Lightmatter and Ayar Labs.

Potential integration challenges with existing data center infrastructure.

Dependency on limited suppliers for photonic components poses supply chain risks.

Differentiation

Celestial AI's Photonic Fabric™ offers unique optical compute interconnect technology.

The company reduces DRAM requirements by up to 35%, saving billions annually.

Celestial AI enables disaggregation of HBM over optics, enhancing bandwidth capacity.

Upsides

Acquisition of Rockley Photonics' IP strengthens Celestial AI's competitive position.

$175 million Series C funding supports further innovation and market expansion.

Growing demand for energy-efficient solutions aligns with Celestial AI's sustainable focus.

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