DSP Algorithms Engineer (System Level Testing)

Austin, TX - USA

Monthly Salary: Not Disclosed

Posted on: 3 hours ago

Vacancies: 1 Vacancy

Job Summary

Title: DSP Algorithms Engineer (System Level Testing)

Location: Austin Texas (Onsite 5 days/week)

Employment Type: Full-Time

Sponsorship: H1B sponsorship available

Experience: 15 20 Years

Salary: $180000 to $195000 with benefits (Full Medical & Dental Meaningful Equity)

We are seeking a senior-level DSP Algorithms Engineer to own system-level performance verification of advanced coherent optical DSP prior to silicon tape-out. This role is not tool-centric but problem-centric: the primary objective is to stress challenge and break the DSP design in realistic and worst-case optical scenarios-before it is too late to fix.

You will act as the final technical line of defense against latent algorithmic and system-level issues requiring deep understanding of DSP algorithms optical channel physics and coherent receiver behavior. This is a highly impactful individual contributor role with significant autonomy.

Key Responsibilities

System-Level DSP Verification & Stress Testing
- Design and execute system-level performance verification for coherent optical DSP across the full signal chain (Tx fiber Rx).
- Develop aggressive stress tests corner cases and adversarial scenarios aimed at exposing algorithmic weaknesses prior to tape-out when fixes are still possible.
- Focus on bug discovery and robustness validation not feature validation or basic functional testing.
- Build and maintain realistic optical channel models capturing fiber propagation effects and physical impairments (e.g. dispersion non-linearities noise laser impairments).
- Translate real-world optical behavior into actionable system-level test scenarios distinct from wireless channel modeling approaches.
- Continuously refine models to reflect worst-case and edge-case deployment conditions.
- Leverage deep DSP algorithm knowledge to attack weak points intentionally rather than relying on generic or template-based test methodologies.
- Work closely with DSP algorithm designers to:
  - Define performance metrics acceptance criteria and failure thresholds
  - Interpret failures in the context of algorithmic intent and system trade-offs
- Drive root-cause analysis and corrective action recommendations.
- Develop and maintain flexible system-level test frameworks using tools such as MATLAB C/C Python or equivalent (tool choice is secondary to outcome).
- Automate regression testing and performance analysis to enable rapid iteration.
- Produce clear documentation describing test methodology assumptions coverage gaps and performance trends.
- Operate as a self-directed individual contributor particularly in a geographically distributed team environment (Austin-based role with primary DSP team in Israel).
- Serve as a domain expert contributing knowledge rather than learning core optical fundamentals on the job.

Minimum Qualifications

Deep expertise in coherent optical communications DSP with hands-on experience in real optical systems (expertise-not exposure).
Proven background in DSP algorithm development and system-level verification ideally in pre-silicon contexts.
Strong understanding of:
1. Optical fiber channel behavior and physical impairments
2. Coherent receiver architectures and signal processing chains
Extensive experience with DSP simulation and modeling using MATLAB C/C Python SystemC or equivalent.
Ability to independently define execute and interpret complex verification strategies.
Bachelors Masters or PhD in Electrical Engineering or related field; degree level is secondary to demonstrated expertise and industrial experience.
Experience working in commercial/industrial environments not purely academic research.

Preferred Qualifications

Experience with RTL-level understanding or hardware implementation flows enabling tighter alignment between algorithm behavior and silicon realities.
Familiarity with analog front-end (AFE) behavior and its interaction with DSP algorithms.
Exposure to:
1. Fixed-point modeling
2. ASIC/DSP implementation considerations
3. FEC schemes (LDPC RS OFEC)
4. Mixed-signal effects such as jitter PLL/CDR behavior
Prior experience in companies with a strong optical DSP pedigree

Title: DSP Algorithms Engineer (System Level Testing) Location: Austin Texas (Onsite 5 days/week) Employment Type: Full-Time Sponsorship: H1B sponsorship available Experience: 15 20 Years Salary: $180000 to $195000 with benefits (Full Medical & Dental Meaningful Equity) We are seeking a se...