Senior Algorithm Engineer – Error Correction Codes (ECC) | Optical Communication

Senior Algorithm Engineer Error Correction Codes (ECC) Optical Communication Remote (US)

Location: Fully Remote (US-based) Preferred near Austin TX or San Francisco Bay Area
Employment Type: Full-Time Sponsorship Available (H1-B)
Compensation: Competitive Base Equity (4-year vesting) Benefits
Interview Process: 3 Rounds 2 Weeks

About the Client

Our client is a Series-D semiconductor innovator revolutionizing cloud and AI infrastructure with cutting-edge programmable coherent DSP (Digital Signal Processing) solutions. Their technology enables faster and more efficient optical data transmission within and between AI data centres - forming the backbone of next-generation AI connectivity.
Backed by world-class investors including Kleiner Perkins Spark Capital Mayfield and Fidelity Investments the company recently emerged from stealth with $180MM in funding and is scaling rapidly.

About the Role

We are seeking a Senior Algorithm Engineer with deep expertise in Error Correction Codes (ECC) for optical communication systems. In this role you will join the R&D team developing next-generation coherent optical transceivers delivering 800Gbps and 1600Gbps data rates.
You will design simulate and optimize ECC algorithms collaborate across system VLSI firmware and verification teams and help bring innovative DSP architectures to life.

Key Responsibilities

• Design and simulate ECC architectures; define performance requirements and specifications for digital and firmware design teams.
• Develop and optimize Error Correction Code algorithms (OFEC preferred) and integrate them into MODEM simulations.
• Collaborate with digital and firmware teams for system bring-up validation and optimization.
• Translate MATLAB-level designs into hardware-efficient RTL-compatible implementations.
• Contribute to cross-functional reviews ensuring algorithmic feasibility and efficiency.
• Perform lab debugging analysis and fine-tuning of algorithms in real-world environments.

Required Qualifications

• 5 years of hands-on experience in ECC algorithm design and development in a hardware implementation context.
• Proven track record in Optical Communication Systems or High-Speed Data Transmission.
• Proficiency in MATLAB and C for algorithm modelling and fixed-point design.
• Strong understanding of hardware and system-level constraints from MATLAB to RTL.
• Practical lab experience with algorithm validation debugging and tuning.
• Corporate/industry experience (academic-only backgrounds not accepted).
• Demonstrated job stability - consistent roles with progressive responsibilities.

Preferred Qualifications

• Experience with OFEC (Open Forward Error Correction) - LDPC alone may not suffice.
• Exposure to DSP architectures and coherent optical transceivers.
• Experience collaborating with VLSI firmware and system design teams.

Target Industry Backgrounds

Candidates currently or previously employed with leading semiconductor and optical companies such as:
Acacia Communications Ayar Labs Broadcom Ciena Infinera Intel Marvell Nvidia AMD Lumentum Ciena Skyworks TSMC Texas Instruments Analog Devices Applied Materials Synopsys Cadence GlobalFoundries Samsung Qualcomm MediaTek Lightmatter Lam Research Onsemi Infineon STMicroelectronics and others.

Additional Details

• Visa Sponsorship: H1-B sponsorship available.
• Equity: Included (4-year vesting).
• Relocation: May be considered based on candidate background.
• Client Name: Confidential (disclosed later in process).

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