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Added 10 days ago
SM
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Thanks for visiting our Job Board. Please review our open positions and apply to the positions that match your qualifications.
Evertz
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- Full-time
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Celero Communications

Principal Optical Systems Engineer

Ottawa, ON, Canada

Full-time

Apply About employer

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Job details

Job type: Full-time
Apply by: Nov 18, 2026
Experience: 10+ years of experience in coherent optical systems or high-speed communication systems
Posting language: English
Posted: Oct 19, 2026

Original job description

About The Role

We are seeking a Principal Optical Systems Engineer to join our newly established optical system verification team at Celero Inc. The successful candidate will help lead system integration and validation of advanced coherent optical DSP solutions. Key areas of focus include defining system specifications, delivering test strategies for DSP and optical integration, supporting firmware solutions to resolve integration challenges in pluggable modules, and driving cross-domain debugging and optimization across DSP, optics, and hardware. You will also help shape architecture and next-generation product direction (1.6T and beyond).

This role requires deep expertise in communication theory, DSP algorithms, and optical systems, combined with strong leadership in defining validation methodologies and resolving complex cross-functional issues.

Key Responsibilities

Partner with the DSP systems group to translate high-level system requirements into DSP performance targets for equalization, clock recovery, and laser frequency and phase recovery
Establish link budgets based on DSP specifications to set performance targets for optical components and work with module partners to optimize link margin
Lead development of high-fidelity system models that correlate with ROSNR and module receiver sensitivity measurements
Lead resolution of critical system-level issues spanning DSP algorithms, analog front-end calibrations, and optical impairments
Develop structured debug frameworks to isolate multi-domain problems
Work with module partners to define system-level test frameworks and adopt qualification test plans from tier-1 customers to expedite module deployment
Oversee bring-up of new DSP ASIC EVBs and coherent optical modules

Required Qualifications

Master’s or PhD in Electrical Engineering, Optical Communications, Photonics, or related field, or equivalent experience

10+ years of experience in coherent optical systems or high-speed communication systems

Proven track record of leading system verification of coherent optical DSP products (e.g., 400ZR, 800ZR, coherent-lite).

Hands-on experience working with:

Optical communication hardware and components – EVBs and pluggable modules
High-speed optical and electrical test/measurement equipment, such as OSA, RTO, DCA, and AWG
Extensive understanding of DSP and FEC for coherent optical communication systems, including experience with QPSK, 16QAM, and 64QAM.
Programming experience in Python, MATLAB, and/or C

Preferred Qualifications

Familiarity with OIF implementation agreements (400ZR, 800ZR), OpenZR+, and the CMIS management interface for pluggable modules
Experience with advanced coherent techniques, such as probabilistic constellation shaping and soft-decision FEC (e.g., oFEC)
Knowledge of coherent optical components (tunable lasers, modulators, ICRs, silicon photonics or InP) and how their impairments affect DSP performance, such as laser phase noise, PDL, PMD, and fiber nonlinearity
Familiarity with OTDR-based fiber link characterization
Experience building automated test frameworks in Python, including instrument control
Experience working directly with hyperscale or tier-1 network operator customers
Publications or patents in optical communications or DSP

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More about this job

Responsibilities

Lead system integration and validation for coherent optical DSP solutions, translating system requirements into DSP targets, link budgets, models, and test strategies. Drive cross-domain debugging and optimization across DSP, analog hardware, and optics, while coordinating qualification testing and bring-up with module partners.

Requirements

Requires a master's degree or PhD in electrical engineering, optical communications, photonics, or a related field (or equivalent experience), plus 10 or more years in coherent optical or high-speed communications systems. Candidates should have led verification of coherent optical DSP products and bring hands-on experience with optical hardware, test equipment, DSP and FEC, modulation formats, and programming in Python, MATLAB, or C.

Skills

Coherent Optical Systems
Optical DSP
System Integration
System Verification
System Validation
Communication Theory
DSP Algorithms
Link Budgeting
System Modeling
Cross-Domain Debugging
Optical Communications
Forward Error Correction
Python
MATLAB
C
Test Automation

Visa sponsorship

Not detected in the job text

Keywords

Coherent Optical DSP
400ZR
800ZR
Coherent-Lite
QPSK
16QAM
64QAM
Forward Error Correction
Soft-Decision FEC
oFEC
OIF Implementation Agreements
OpenZR+
CMIS
Optical System Verification
Link Budgets
ROSNR
Receiver Sensitivity
Optical Spectrum Analyzer
Real-Time Oscilloscope
Digital Communications Analyzer
Arbitrary Waveform Generator
Evaluation Boards
Pluggable Optical Modules
Probabilistic Constellation Shaping
Tunable Lasers
Silicon Photonics
InP
Laser Phase Noise
Polarization-Dependent Loss
Polarization Mode Dispersion

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