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System C Modeling Engineer

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System C Modeling Engineer
Mogi IO OTTPodcastShort Video Apps for you
Country flag
Austin, Texas, United States
Classification symbol Engineering
H-1B
Salary
160000 - 180000 USD /YEAR
Job posted on November 18, 2025
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Job Description:
Work Type: Full-Time, Permanent

Experience Required: 10 – 15 Years

Compensation: USD 160,000 – 180,000 + Generous Equity

Eligibility: Will sponsor H1-B

Job Overview

  • ator specializing in programmable coherent DSP (Digital Signal Processing) solutions for cloud and AI infrastructure seeks a DSP Algorithms Engineer (System C Simulation) to join their Optical DSP team in Austin, Texas.

The company has secured over $180 million in funding from elite investors including Kleiner Perkins, Spark Capital, Mayfield, and Fidelity Investments, and is building next-generation DSP technologies enabling ultra-fast data transmission between AI data centers.

This role offers the opportunity to work at the intersection of optical systems, DSP algorithms, and System C simulation, directly contributing to the architecture and performance of coherent optical DSP ASICs.

Key Responsibilities

  • Develop a comprehensive System C simulation platform that models full optical DSP systems, including TX/RX data paths, analog front-end, optical subassemblies, and firmware interaction.
  • Translate MATLAB-based DSP models into efficient System C/C++ implementations.
  • Design and integrate simulation frameworks for timing recovery, equalization, carrier recovery, FEC, DAC/ADC, and optical channel modeling.
  • Model real-world effects such as fiber impairments, noise, jitter, and OSNR to evaluate DSP performance (BER, EVM, sensitivity).
  • Collaborate closely with DSP algorithm developers, ASIC design, and verification teams to ensure seamless architecture validation.
  • Build regression test environments and ensure robust verification of full DSP chains.
  • Document simulation architectures, APIs, and development methodologies for team-wide usage.
  • Support architecture trade-off studies and provide insights that influence DSP ASIC design decisions.

Must-Have Qualifications
  • Master’s degree (MSc) in Electrical Engineering, Computer Engineering, or a related field.
  • Minimum 10 years of experience in DSP design and modeling for communications, optical, or related systems.
  • Strong proficiency in System C / C++, with proven experience building modular simulation environments.
  • Hands-on experience with MATLAB DSP prototyping and translation into System C.
  • Solid understanding of digital communication systems:
    • Modulation
    • Equalization
    • Coding
    • Carrier & timing recovery
  • Familiarity with coherent optical communications and fixed-point modeling.
  • Experience in DSP ASIC design flow and cross-functional collaboration with hardware/firmware teams.
  • Excellent analytical, debugging, and teamwork skills.
  • Job stability and continuity — no frequent job changes or breaks.

Nice-to-Have Qualifications

  • Experience with verification methodologies such as UVM/SystemVerilog or HW/SW co-simulation.
  • Familiarity with HDLs (VHDL/Verilog) or HLS (High-Level Synthesis) design flows.
  • Exposure to FEC algorithms (LDPC, RS, OFEC) and their integration in DSP systems.
  • Understanding of PLL/CDR, jitter modeling, and mixed-signal impairments in high-speed systems.
  • Experience in ASIC system-level performance validation or optical link modeling.

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