System Architect for High-Speed Optics

2 days ago


Stockholm, Stockholm, Sweden Infinera Full time

Infinera's DWDM transmission systems rely on advanced coherent line interfaces consisting of Digital Signal Processors and optical electrical conversion. These components offer best-in-class cost, data rate, reach and power consumption – e.g. in transponder and muxponder units – providing mapping of client signals, signal supervision, traffic protection and similar functions with Tbit/s throughput.

The Coherent Interface Design Lead is responsible for developing and maintaining the product architecture and detailed product features and requirements based on market requirements and industry feature requests for those coherent modules.

This role coordinates and leads cross-functional concepts preparing for smooth transition in the development organization and coordinates feature teams and provides technical & directional support to R&D, product management and customer teams.

Key responsibilities:

  • Designing innovative, competitive product architectures and concepts for optical coherent pluggable modules:
  • Aligning requirements and concepts and integrating Digital Signal Processor ASICs, Optics, FW & SW into best-in-class coherent interfaces
  • Understanding business requirements, use cases and operational concepts
  • Trade-off between cost, function, capacity and performance
  • Up-to-date, deep technical understanding of coherent interfaces and their application, including hand-on HW development experience, thorough understanding of coherent modulation formats, and optical components used in coherent receivers and transmitters
  • A good technical understanding of optical network equipment and optical network design in general
  • The ability to lead a cross-functional team of experts to a successful implementation of coherent pluggable modules

Main tasks:

Collaborating with international, cross-functional product teams (product management, optical transmission experts, ASIC developers, integrated photonics technologists and component experts, HW, FW & SW developers) to facilitate & build consensus on innovative solutions meeting the product and customer requirements and schedule and cost constraints; breaking down product functions and requirements into functions and building blocks for the coherent pluggable modules.

Leading technical thought leadership and innovation capability.

Requirements include:

  • A MSc/PhD degree in communications, electrical engineering or a related field and a minimum of 5+ years working experience in HW development of coherent optical interfaces.
  • In-depth knowledge of relevant telecommunication standard, optical coherent transmission technology, network protocols, trends and emerging technologies with focus on coherent systems.
  • Experience with different CPU platforms and bus protocols like I2C, MDIO, SPI, PCIe, AMBRA (AXI)
  • Experience in leading HW design and HW architecture of coherent pluggable modules or related telecommunications products.
  • Excellent communication and presentation skills and ability to work in a multi-disciplinary, multi-site and multi-national team environment.
  • Self-directed and highly motivated.


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