Optical Design Engineer

Job Description
Infinera provides Intelligent Transport Networks to help carriers exploit the increasing demand for cloud-based services and data center connectivity as they advance into the Terabit Era. Infinera is unique in its use of breakthrough semiconductor technology to deliver large scale Photonic Integrated Circuit (PICs) and the application of PICs to vertically integrated optical networking solutions that deliver the industry’s only commercially available 500 Gb/s FlexCoherent super-channels. Infinera Intelligent Transport Network solutions include the DTN-X, DTN and ATN platforms.

Over 120 customers in more than 70 countries rely on an Infinera Intelligent Transport Network to differentiate their services, protect their investment and lower operating expense as they scale their network.

Imagine being part of a team that is fundamentally changing the way people communicate, the way they collaborate, the way they watch TV and explore the universe through the internet. Utilizing our uniquely differentiated technology, we have created a Digital Optical Networking system with more speed, capacity and scalability than ever before. Imagine a world with unlimited bandwidth. The network of tomorrow will allow for content and creativity limited only by the imaginations of its users.

Infinera is looking for a motivated and experienced optical engineer to join the Optical Architecture team. The individual will be a key contributor to the architecture and design of Infinera's optical line system products. He/she will be the owner of system performance requirements and their translation to detailed optical HW architecture and SW controls design in collaboration with Systems Engineering and SW Development teams. This is a leadership opportunity to help define the next generation of Infinera's transmission system.

Essential Functions and Key Responsibilities:

Architecture and design of Infinera's transmission system line cards based on product requirements, including optical amplifiers, ROADMs, optical switches

Perform optical power flow budgeting, noise figure calculations and analytical simulations of line card performance based on system design goals/metrics

Design optical performance monitoring and control algorithms to run-time optimize system bring up and end-to-end optical performance

Interface extensively with product planning and system architecture teams as well as with HW, SW, FPGA and DSP engineers to drive the product from conception to prototype

Job Requirements

Minimum Knowledge/Skills/Abilities:

In-depth knowledge of optical communication systems, linear and nonlinear impairments and design tradeoffs, including cross-talk, gain flatness, noise-figure cascading, filtering penalties, CD, PMD, SPM, XPM, FWM etc

Extensive experience in EDFA and Raman amplifier design

Extensive experience in ROADM and optical switching technologies

Expertise in statistical analysis techniques and associated software

Familiarity with standard industry product life cycle

Ability to work under pressure and adhere to tight deadlines in a dynamic collaborative environment

Strong written and verbal communication skills

Strong interpersonal skills with demonstrated ability to work in a cross-functional role

Programming experience in various languages (e.g., VB.NET, MATLAB, C, C++, python)

Education Required:

Ph.D. with >5 years direct experience in the optical communications industry

Hands-on experience with basic optical communication building blocks including optical amplifiers, coherent transponders and other DWDM equipment

Knowledge of optical components/subsystems calibration, bring-up and optical verification process


Infinera Corporation

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