DSP Algorithm Engineer (System Level Testing)

Retym, Inc; Austin (TX); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Opportunity for career growth in DSP algorithm design and architecture

Collaborate with a multidisciplinary team of experts

Job summary

Retym, Inc. is seeking a highly skilled Algorithm Engineer in Austin, Texas, to develop and automate system-level tests for advanced coherent optical DSP. You will work on ensuring the performance and robustness of cutting-edge DSP systems.

This role requires an MSc in Electrical Engineering or a related field and over 10 years of experience in DSP design and modelling. You'll be collaborating with a multidisciplinary team, influencing architectural decisions and driving various testing methodologies.

Qualifications

• MSc in Electrical Engineering, Computer Engineering, or related field.
• 10+ years of experience in DSP design and modelling, preferably for communications or optical systems.
• Strong proficiency in MATLAB / C++, with hands-on experience building modular simulation frameworks.

Responsibilities

• Design, implement, and maintain system-level test frameworks for coherent DSP algorithms.
• Develop automated end-to-end test environments including channel models and performance analytics.
• Analyze test results and drive corrective actions based on performance degradation.

Skills

MATLAB DSP prototyping

Digital Signal Processing (DSP)

C/C++ programming

Problem-solving

Teamwork

Education

MSc in Electrical Engineering or related field

Tools

MATLAB

Job description

Overview

We are seeking a highly skilled Algorithm Engineer to develop, execute, and automate system-level tests for advanced coherent optical DSP. In this role, you will work at the intersection of signal processing and optical communications to ensure the performance, robustness, and readiness of cutting-edge coherent DSP.

Responsibilities

• Design, implement, and maintain system-level test frameworks to validate and stress coherent DSP algorithms across the full signal chain.
• Develop automated end-to-end test environments including channel models, impairments, hardware-in-the-loop elements, and performance analytics.
• Create novel stress tests, corner-case scenarios, and fault-injection methodologies to uncover algorithmic weaknesses.
• Work closely with algorithm developers to define test requirements, acceptance criteria, and performance metrics.
• Analyze test results, identify root causes of performance degradation, and drive corrective actions.
• Generate detailed documentation covering test design, simulation assumptions, and system-level performance trends.

Requirements

• MSc in Electrical Engineering, Computer Engineering, or related field.
• Experience with MATLAB DSP prototyping and translation C/Phyton.
• 10+ years of experience in DSP design and modelling, preferably for communications or optical systems.
• Strong proficiency in MATLAB / C++, with hands-on experience building modular simulation frameworks.
• Solid understanding of digital communication systems (modulation, coding, equalization, carrier and timing recovery).
• Knowledge of coherent optical communications.
• Excellent problem-solving and teamwork skills.

Nice to Have

• Familiarity with fixed-point modelling and ASIC/DSP design flow.
• Exposure to FEC codes (LDPC, RS, OFEC) and their integration into DSP systems.
• Understanding of jitter, PLL/CDR modelling, and mixed-signal impairments in simulations.

Why Join Us?

• Be at the forefront of next-gen optical communication systems (800G, 1.6T, and beyond).
• Collaborate with a multidisciplinary team of DSP, optics, and hardware experts.
• Influence architecture decisions by providing critical simulation insights.
• Opportunity for career growth in both DSP algorithm design and system architecture.