Senior Packaging Engineer — 2.5D/3D AI Hardware, Equity

Platform Recruitment; Austin (TX); On-site; USD 200,000 - 400,000; Full time

Benefits offered by this job

Equity & stock options

Annual local bonus

Job summary

Platform Recruitment has a client, an ambitious AI hardware company, seeking a Senior/Staff Packaging Engineer to lead advanced ASIC packaging from architecture to production readiness. You will drive 2.5D/3D packaging architectures, own the design flow and mentor engineers across layout, simulation and release.

The role requires deep semiconductor packaging expertise, tool fluency (Cadence Allegro, Xpedition, Ansys SIwave), and experience with silicon-to-board integration for high-performance

Qualifications

• Deep expertise in advanced semiconductor packaging for ASICs or other high-performance products.
• Strong experience in front-end package design and ASIC-to-substrate integration.
• Hands-on experience with 2.5D and/or 3D packaging architectures.
• Proficiency with package design tools such as Cadence Allegro, Siemens Xpedition or equivalent.
• Experience leading package development across layout, simulation, verification and release.
• Strong PI/SI simulation experience using tools such as Ansys SIwave, Cadence Sigrity or equivalent.
• Experience in substrate design and package-to-board integration.
• Understanding of manufacturability, interconnect technologies and package reliability.
• Relevant degree in engineering or physical sciences.
• Experience with AI accelerators, HPC, networking or advanced data-centre hardware.
• Familiarity with wafer-level packaging, package qualification and failure analysis.
• Experience mentoring engineers and supporting new product introduction

Responsibilities

• Lead advanced package design for ASIC-to-substrate integration, including bump mapping, substrate routing, floorplanning and stack-up definition
• Develop 2.5D and 3D package architectures for multi-die and chiplet-based designs
• Own the package design flow from concept and layout through simulation, verification, sign-off and manufacturing support
• Run package-level SI/PI simulations to optimise performance and power delivery
• Drive substrate and PCB co-design, ensuring alignment between silicon, package and board-level interfaces
• Establish package design methodologies, libraries, workflows and implementation guidelines
• Collaborate with ASIC, thermal, mechanical and systems engineers, as well as substrate vendors and manufacturing partners
• Support prototype builds, qualification, failure analysis and productisation

Skills

Semiconductor packaging

2.5D/3D packaging

Front-end package design

Package-to-board integration

PI/SI simulation

Mentoring engineers

Education

Engineering or physical sciences degree

Tools

Cadence Allegro

Siemens Xpedition

Ansys SIwave

Cadence Sigrity

Job description

Platform Recruitment has a client, an ambitious AI hardware company, seeking a Senior/Staff Packaging Engineer to lead advanced ASIC packaging from architecture to production readiness. You will drive 2.5D/3D packaging architectures, own the design flow and mentor engineers across layout, simulation and release.

The role requires deep semiconductor packaging expertise, tool fluency (Cadence Allegro, Xpedition, Ansys SIwave), and experience with silicon-to-board integration for high-performance