Retym, Inc

Senior BackEnd (Physical design) Engineer

Retym, Inc  •  Ramat Gan, IL (Onsite)  •  18 days ago
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Job Description

For an exciting well-funded start-up, we are looking for a Backend Team member.

You will work on complex design, high frequency and low-power budget. Work on ramp-up full RTL2GDSII flow for leading technology and work with external vendors.

Requirements

Key responsibilities:

  • RTL-to-GDSII Ownership: execute the complete backend implementation flow (Logic Synthesis, P&R, Tape-Out, IR-drop, etc.), ensuring timely, first-pass silicon success.

· Constraints & Timing Closure: Work with design and DFT engineers to write timing and physical constraints, and sign-off on the design using comprehensive Static

Timing Analysis (STA), timing eco implementation.

· Advanced Physical Implementation: Drive complex physical design tasks including Floorplanning, Power/Ground (PG) Mesh implementation, and handling advanced

clocking (CTS/Clock-Mesh) and Hierarchical Design flows.

· Low Power Expertise: Define, implement, and verify advanced low power design techniques to meet aggressive power consumption targets.

· Design for Manufacturability: Implement and verify Design-for-Test (DFT) strategies and close physical verification challenges, specifically focusing on IR-Drop

analysis.

· IP Integration & Automation: Execute complex IP integration, incorporating blocks generated by memory compilers and other automated tools.

  • Collaboration: work closely with design team to understand the data path and correctly implement the floorplan, provide feedback on RTL changes required, Implement logical eco post RTL freeze with design team.
  • CAD: Improve existing implementation flows to achieve better QOR, write scripts for supporting the P&R flows.

Minimum Qualifications

  • Experience of 10+ years in backend design
  • Strong expertise of full RTL2GDSII including:
  • Logic synthesis & equivalence checking
  • Constraints definition and writing
  • Complicated IP integration
  • Memory compilers and other automated block generators
  • DFT
  • Floorplanning, PG Mesh
  • P&R
  • Low power design including definition, implementation and verification
  • Timing STA
  • IR-Drop
  • BS/MS in EE/CE from lead universities

Preferred Qualifications

  • Team player
  • Highly motivated
  • Learning abilities
  • Good communication
  • Work with external vendors
  • Experience in Synopsys/Cadence tools is an advantage
  • Low power techniques
  • Clock-mesh/ multi source cts
  • Hierarchical design flow
  • Experience in tape-out procedures
  • RTL code reading

A very interesting job and good conditions are guaranteed to the candidates

Retym, Inc

About Retym, Inc

AI is transforming industries at an unprecedented scale - but today’s data center infrastructure wasn’t built to keep up. As AI workloads grow more complex and data volumes double every two years, connectivity - not compute - has become the bottleneck.

Retym is solving this challenge by delivering next-generation Coherent DSP solutions that provide high-performance, low-latency connectivity for AI infrastructure and data center interconnects.

We are a semiconductor company driven by innovation, bringing together a world-class team of chip designers, optical networking experts, and leading investors to rethink how data moves in the AI era. Our purpose-built DSP technology delivers:

Scalable, high-bandwidth interconnects for AI-driven data centers

Power-efficient, high-performance networking that removes bottlenecks

A coherent DSP provider that gives module makers more control and builds toward a more open, vibrant ecosystem

With hyperscalers deploying AI across multiple locations and AI infrastructure requirements rapidly evolving, Retym is building the connectivity backbone for the future of AI.

The future of AI isn’t just about compute - it’s about how we move data.

Together, we are building a novel semiconductor technology that will transform the datacenter and telecommunications industries.

Industry
Hardware & Semiconductors
Company Size
51-200 employees
Headquarters
Cupertino, CA
Year Founded
2021
Website
retym.com
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