---
title: 'Principal Optical Systems Engineer at Celero Communications, Inc.'
canonical: 'https://feeny.ai/job/principal-optical-systems-engineer-celero-communications-inc-ottawa-5esg1r55angb'
type: 'job'
last_seen: '2026-11-06'
---

# Principal Optical Systems Engineer at Celero Communications, Inc.

- **Company:** Celero Communications, Inc.
- **Location:** Ottawa, Canada
- **Posted:** 2026-10-19
- **Last confirmed live:** 2026-11-06
- **Apply:** https://job-boards.greenhouse.io/celerocommunicationsinc/jobs/4457997009

## 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

## About Celero Communications, Inc.

## Company Overview
- **One-liner**: Celero Communications develops advanced coherent DSP solutions that enable high-bandwidth, low-power optical connectivity for AI infrastructure, eliminating distance bottlenecks in data centers.
- **Entity Type**: Private (Series B; total funding $148.4M per LinkedIn, $140M per company press release)
- **Headquarters**: Irvine, California, USA
- **Founded**: 2024
- **Founders**: Nariman Yousefi (CEO, President & Co-founder) and Oscar Agazzi (CTO & Co-founder)

## Core Business
- **Primary industry**: Semiconductor manufacturing / optical networking for AI infrastructure
- **Target customers**: B2B – hyperscale data centers, AI cloud providers, and large-scale accelerated computing clusters
- **Mission**: “Deliver the optical performance and scalability needed for the next generation of accelerated computing” [celero.inc](https://celero.inc/about/)

## Products & Services
- **Coherent DSP Platform**: A digital signal processor that provides light-speed performance, bandwidth efficiency, and scalable optical links for AI accelerators, servers, and clusters. The technology is described as 100x more efficient than conventional optical transmission and is designed for interoperability across diverse AI and cloud platforms. [celero.inc](https://celero.inc/celero-communications-secures-140-million-to-accelerate-ai-infrastructure/)

## Market Standing
- **Valuation**: Not publicly disclosed
- **Key Metric**: Total funding of **$148.4 million** (Seed $8.4M led by Sutter Hill Ventures; Venture Round $40M; Series B $100M led by CapitalG) [linkedin.com](https://www.linkedin.com/company/celero-communications)
- **Notable Investors/Partners**: Sutter Hill Ventures (lead seed & Series A), CapitalG (lead Series B), plus other undisclosed investors in venture round [linkedin.com](https://www.linkedin.com/company/celero-communications)
- **Growth Signals**: Founded in 2024, already employs **93 people** with a monthly headcount growth of **+9.3%**. Operates design centers in Irvine (CA), Ottawa (Canada), and Córdoba (Argentina). [linkedin.com](https://www.linkedin.com/company/celero-communications)

## Competitive Advantages
- **Founding team** consists of industry pioneers from Marvell, Inphi, Broadcom, and ClariPhy with decades of experience in analog design, digital signal processing, and optical networking. [celero.inc](https://celero.inc/about/)
- **Coherent DSP technology** that eliminates distance bottlenecks, delivering 100x more efficient optical transmission for scale-across AI infrastructure. [celero.inc](https://celero.inc/)
- **System flexibility and interoperability** across diverse AI and cloud platforms, making it easier for data centers to adopt. [celero.inc](https://celero.inc/)

## Strategic Focus
- **Current priorities**: Scaling AI infrastructure connectivity by delivering high-bandwidth, low-power optical links; expanding engineering teams across all design centers; and building energy-efficient systems that redefine how data centers connect. [celero.inc](https://celero.inc/careers/)

## Why Work Here
- **Culture**: Described as driven by curiosity, precision, and the challenge of making AI systems faster and more energy-efficient. Employees collaborate with global experts in coherent DSP and optical engineering. [celero.inc](https://celero.inc/careers/)
- **Work model**: On-site/hybrid at three locations – Irvine, CA (HQ); Ottawa, Canada; and Córdoba, Argentina. Multiple engineering roles (Analog Design, ASIC, DSP, Firmware, Verification) are posted with specific location requirements. [greenhouse.io](https://job-boards.greenhouse.io/celerocommunicationsinc)
- **Notable perks**: Opportunity to work on next-generation AI infrastructure technology alongside industry pioneers. The company emphasizes building scalable, energy-efficient systems and offers roles across R&D, operations, and manufacturing. [celero.inc](https://celero.inc/careers/)

## Sources
1. [celero.inc](https://celero.inc/) – Company homepage and product description
2. [celero.inc](https://celero.inc/about/) – About page (founding, leadership, mission)
3. [celero.inc](https://celero.inc/celero-communications-secures-140-million-to-accelerate-ai-infrastructure/) – Press release on $140M funding
4. [linkedin.com](https://www.linkedin.com/company/celero-communications) – LinkedIn company page (funding details, headcount, locations, employee breakdown)
5. [greenhouse.io](https://job-boards.greenhouse.io/celerocommunicationsinc) – Careers page (open positions, locations)

## Other roles at Celero Communications, Inc.

- [Office Manager](https://feeny.ai/job/office-manager-celero-communications-inc-san-jose-cn78s1p95vfp) — San Jose, CA
- [Junior Emulation Engineer](https://feeny.ai/job/junior-emulation-engineer-celero-communications-inc-cordoba-mr1rgy0be981) — Cordoba, Argentina
- [Senior ASIC Design Engineer - DSP/Analog/SerDes](https://feeny.ai/job/senior-asic-design-engineer-dsp-analog-serdes-celero-communications-inc-ottawa-x63zcvwcjacj) — Ottawa, Canada
- [Senior ASIC Design Engineer - DSP/Analog/SerDes](https://feeny.ai/job/senior-asic-design-engineer-dsp-analog-serdes-celero-communications-inc-irvine-cetabymy86nx) — Irvine, CA
- [Senior ASIC Design Engineer - DSP/Analog/SerDes](https://feeny.ai/job/senior-asic-design-engineer-dsp-analog-serdes-celero-communications-inc-san-jose-aybnp6fps5vc) — San Jose, CA
- [Post-Silicon Validation Engineer (Multiple Levels)](https://feeny.ai/job/post-silicon-validation-engineer-multiple-levels-celero-communications-inc-wrpm0f2vanb5) — Irvine CA OR Ottawa Ontario, Canada
- [Principal High-Speed Analog Layout Design Engineer](https://feeny.ai/job/principal-high-speed-analog-layout-design-engineer-celero-communications-inc-abktjq9g2jgw) — Ottawa, Canada
- [Principal High-Speed Analog Layout Design Engineer](https://feeny.ai/job/principal-high-speed-analog-layout-design-engineer-celero-communications-inc-4kasvranjrvf) — San Jose, CA
- [Principal High-Speed Analog Layout Design Engineer](https://feeny.ai/job/principal-high-speed-analog-layout-design-engineer-celero-communications-inc-vnzcs82knnj6) — Irvine, CA
- [High-Speed Analog Layout Design Engineer](https://feeny.ai/job/high-speed-analog-layout-design-engineer-celero-communications-inc-cordoba-k9yg56pm5h0s) — Córdoba, Argentina