Advanced Packaging Technologist

About the Team:

OpenAI’s Hardware organization develops silicon and system-level solutions designed for the unique demands of advanced AI workloads. The team is responsible for building the next generation of AI-native silicon while working closely with software and research partners to co-design hardware tightly integrated with AI models. In addition to delivering production-grade silicon for OpenAI’s supercomputing infrastructure, the team also creates custom design tools and methodologies that accelerate innovation and enable hardware optimized specifically for AI.

Role Overview

We are seeking an experienced engineer to lead the development of advanced packaging technologies that enable next-generation, high-performance compute systems. This role sits at the intersection of chip architecture, package integration, and manufacturing scale-up, driving breakthroughs in performance, power, thermal, and reliability. The ideal candidate brings deep expertise in 2.5D and 3.5D large-reticle integration and Co-Packaged Optics (CPO) packaging, with a proven ability to translate advanced concepts into qualified, high-volume production solutions.

In this role you will:

• Architect, develop, and prototype advanced packaging solutions (2.5D/3D integration, large-format interposers/bridges, high-density substrates, advanced assembly flows), and drive end-to-end qualification for high-volume production.

• Develop packaging concepts and requirements to support CPO packaging, including optical/electrical co-integration considerations, thermal/mechanical constraints, and high-volume manufacturability.

• Lead large-reticle and multi-die integration strategies, including mechanical/thermal co-design, warpage control, and yield/reliability risk mitigation across package scale-up.

• Identify and solve fundamental technical challenges in package architecture, integration, and manufacturability for high-performance compute chips.

• Collaborate closely with cross-functional teams (silicon architecture, SI/PI, thermal, mechanical, system, test, and manufacturing) to align package development with product requirements and program milestones.

• Drive vendor engagement and technical alignment with external partners (foundry/OSAT/material/tool vendors), including technology selection, DOE planning, and qualification readiness.

You might thrive in this role if you have:

• Large-reticle / large-body-size integration, including interposer/bridge-based architectures, package-scale mechanical/thermal risk management, and manufacturability at scale.

• Hands-on experience with CPO packaging, including package-level optical integration constraints and cross-domain trade-offs (electrical/optical/thermal/mechanical).

• Proven track record developing and productizing large-format, high-power, high-speed advanced packaging technologies for high-performance compute products.

• In-depth expertise across advanced packaging techniques and platforms used in the semiconductor industry (2.5D, 3D stacking, interposers/bridges, high-density substrates, advanced materials and assembly).

• Strong understanding of chip–package co-design: how chip architecture, I/O, power delivery, and floorplan decisions interact with packaging architecture and constraints.

Preferred Qualifications

• Solid understanding of thermal and mechanical interactions in large-format packages (warpage, stress, lid/heat-spreader/cold-plate interfaces, material interactions).

• Working knowledge of reliability requirements and qualification methodologies for advanced packages (JEDEC/industry practices, failure analysis, DOE-driven learning cycles).

• Familiarity with system-level considerations and chip architecture fundamentals (I/O topology, HBM/advanced memory integration, SI/PI constraints, module-to-system integration).

To comply with U.S. export control laws and regulations, candidates for this role may need to meet certain legal status requirements as provided in those laws and regulations.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. 

We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.

For additional information, please see OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement.

Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.

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