> Markdown version of [/jobs/ext/3388812-senior-optical-hardware-engineer](https://www.wearedevelopers.com/jobs/ext/3388812-senior-optical-hardware-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Optical Hardware Engineer - **Company:** Credo Llc - **Location:** San Jose, CA, United States - **Experience:** Expert - **Salary:** $140,000.0 - $210,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Content Management Interoperability Services, Data Infrastructure, Software Debugging, Ethernet, Firmware, PCI Express, Signal Integrity, Application Specific Integrated Circuits, System-level Testing, Power Analysis (Cryptography), Pcb Layout - **Published:** September 7, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=bc7e44c18a38fdd0 ## About the Role B.S., M.S., or Ph.D. in Electrical Engineering, Optoelectronics, Optics, or Applied Physics, with 7+ years of relevant experience. Familiarity with industry standards governing optical modules (IEEE, QSFP-DD, OSFP, CMIS). Proficiency with PCB design and analysis tools. Hands-on experience with high-speed optical and electrical test equipment. Familiarity with optical alignment and manufacturing-floor equipment. Strong skills in analyzing alignment data. Excellent written and verbal communication skills. Preferred Qualifications Experience developing PCBs for 800Gbps or 1.6Tbps optical transceiver modules. Familiarity with optical component manufacturing technologies and the industry landscape. * Experience leading and contributing to cross-functional teams. ## Description Review PCB-level requirements, interfaces, and constraints in collaboration with mechanical, firmware, optical, and manufacturing teams. Review PCB layouts, including component placement, stack-up design, high-speed routing, controlled impedance paths, and SI/PI-driven layout strategies. Perform PCB bring-up, debugging, and characterization using oscilloscopes, VNAs, high-speed scopes, and power analysis tools. Review SI/PI simulations and modeling reports, including channel analysis, PDN optimization, and high-speed data path modeling for 1.6Tbps+ module architectures. Support NPI and mass production, ensuring manufacturability, yield, reliability, and DFM compliance. Partner with manufacturing teams to ensure production readiness and timely issue resolution. Optical System Integration Coordinate electrical-optical system integration for high-speed modules, aligning PCB architecture with optical engine requirements. Define electrical interfaces for optical components-drivers, TIAs, DSPs/Coherent ASICs, lasers, and photodiodes-ensuring signal integrity across the full optical chain. Collaborate with optical, mechanical, and packaging teams to co-optimize PCB designs for thermal paths, mechanical constraints, fiber routing, and optical engine placement. Support integration of optical subassemblies (ROSAs, TOSAs, Coherent Optical Engines), including connector selection, power delivery, and high-speed interface routing. Debug electrical-optical performance issues, including modulation errors, link margin problems, thermal drift, eye diagrams, and interface compatibility. Develop system-level test plans validating both electrical and optical performance against industry standards (IEEE, OIF, MSAs). Work with optical component suppliers to align mechanical, electrical, and thermal requirements and influence next-generation platform roadmaps. * Ensure seamless integration across the full module stack: firmware, DSP/ASIC behavior, power regulation, clocking, and optical performance. About Credo: Credo's mission is to transform connectivity at scale through fast, reliable, and energy-efficient system solutions. Our high-speed copper and optical interconnect products deliver industry-leading power and performance at up to 1.6T to meet the ever-expanding data infrastructure demands of AI. Our product portfolio includes ZeroFlap (ZF) Active Electrical Cables (AECs) and ZF optical transceivers, OmniConnect memory solutions, and a suite of retimers and DSPs for optical and copper Ethernet and PCIe, all leveraging the PILOT diagnostic and analytics software platform. Credo innovations enable our customers to connect the systems that connect the world. ## Related Videos - [The Gashlycrumb Tinies of AI Networking You Must Know (or Languish!)](https://www.wearedevelopers.com/videos/2067-the-gashlycrumb-tinies-of-ai-networking-you-must-know-or-languish) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Strange New Worlds: shaping the future of the digital age](https://www.wearedevelopers.com/videos/677-strange-new-worlds-shaping-the-future-of-the-digital-age) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) - [Agent Smith Gets Hardware: Autonomous IoT Hacking From Debug Port to Cloud API](https://www.wearedevelopers.com/videos/100258-agent-smith-gets-hardware-autonomous-iot-hacking-from-debug-port-to-cloud-api) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Best US AI Conferences for CTOs in 2026: Build vs. Buy, Vendor Evaluation, and Peer Intelligence](https://www.wearedevelopers.com/magazine/736-best-us-ai-conferences-for-ctos-in-2026-build-vs-buy-vendor-evaluation-and-peer-intelligence) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026) - [6 Emerging Technologies We’ll Learn About in 2025](https://www.wearedevelopers.com/magazine/381-6-emerging-technologies-we-ll-learn-about-in-2025)