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Role description

DSP Algorithm Engineer

Retym, Inc logoRetym, Inc
WorkplaceOn-site
SenioritySenior
LocationAustin, TX
Posted9/25/2026
Engineering

For an exciting well-funded start-up, we are looking for a DSP Optical Communication Algorithm senior engineer.

As an Algorithm Engineer you will be part of the R&D group developing next generation coherent optical transceivers for DCI with data rates of 800Gbps and 1600Gbps.

You will design, simulate, and optimize algorithms.

You will interact with many different teams such as: Analog, System, VLSI, Design Verification and FW.

What will your work look like?

  • Design and simulate DSP architectures, define key capabilities, performance requirements and drive specifications for analog, digital and firmware designers.
  • Develop and simulate DSP algorithms and behavioral models of the optical channel, the optical-electrical transceivers and analog units (ADC/DAC).
  • Work with designers to ensure circuit architecture can be efficiently implemented.
  • Participate in cross-functional teams with analog, digital, and firmware designers for bring-up and validation/optimization activities.

Requirements:

Required Experience

  • 5 years or more of hands-on experience and a well proven record of modem algorithms development (Clock Recovery, Equalization, Phase Recovery, and tracking) for Single Carrier modulation and demodulation.
  • Fixed point design and programming in MATLAB and C
  • Very good understanding of System and HW implementation restrictions (from MATLAB to RTL)
  • Lab hands on (algorithms debug and tuning)

Additional Preferred Experience

  • Experience with Optical Communication systems
  • Understanding analog mixed signal (ADC/DAC/PLL/VCO) and specifications
  • Experience with analog circuit calibrations

Educational Background: BSc in Electrical Engineering

Relevant archetypes

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Company info

Retym, Inc logo

Retym, Inc

Developing Next Generation Optical Communication Infrastructure

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 loca

Private companySeries D
Founded2021
HQCupertino, United States
Unlock human wisdom
ThesisTermsPrivacy
Size
51–200 employees
IndustrySemiconductor Manufacturing
Funding
  • Series D · $75M · Mar 31, 2025
Investors
Spark Capital
Tech stackjenkins, microsoft-forefront, pics, matlab, amazon-linux, amazon-ebs, cadence-virtuoso, workspace, aws-iam, national-instruments

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