Digital Signal Processing Engineer Algorithm Engineer …, Austin

About Retym:
Retym is revolutionizing AI infrastructure and cloud connectivity with groundbreaking digital signal processing (DSP) innovations.
Our state-of-the-art technologies are engineered to maximize AI performance, minimize latency, and deliver effortless scalability for next-generation applications.
At Retym, we bring together world-class experts in analog, DSP, VLSI, and optical communications, collaborating with visionary investors to redefine the landscape of AI infrastructure.
With headquarters in Silicon Valley and offices in Austin, Tel Aviv, and Yerevan, Retym is rapidly expanding.
We are looking for passionate, driven individuals to join our dynamic team and help shape the future of AI technology.
Become part of a collaborative, forward-thinking environment where your work will make a real impact.
Job Title:
Digital Signal Processing Engineer Algorithm Engineer (System Level Testing)
Location:
Austin (Preference)/ Open to other location candidates
Role:
Full-Time
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.
Key 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
.