Principal System Architect - OLS

Nokia; Bengaluru; On-site; INR 3,000,000 - 6,000,000; Full time

Job summary

NILightpath in Bengaluru is seeking an experienced Optical Transport Architect to own the requirements and architecture for Layer0 feature areas from concept through release.

You will shape features with Product Line Management, guide development teams, and validate control loops and OSNR models for end-to-end transmission.

Qualifications

• Ph.D. in a relevant field with minimum 5 years of optical transport experience.
• MS with 8+ years in optical transport is acceptable as an alternative.
• Experience writing and leading robust requirements and architecture specs.
• Knowledge of multi-layer networking control planes and data models.
• Ability to mentor engineers and communicate technical concepts clearly.

Responsibilities

• Own requirements and architecture for Layer0 feature areas from concept to release.
• Shaping product features with Product Line Management and feasibility analysis.
• Define system design rules and optical performance models used by the team.
• Drive architecture and interfaces across development leads and teams.
• Architect and validate distributed control loops (power, gain, tilt, suppression).
• Collaborate with documentation to describe features for customers.
• Lead cross-functional teams and present in technical engagements with customers.
• Mentor engineers and architects on the team.

Skills

Fiber transmission

Optical networking

ROADM/WSS

YANG data models

OTAI/ONF TAPI

OSI/OSNR modeling

System architecture

Cross-functional leadership

Technical mentorship

Communication skills

Education

Ph.D. in Electrical Engineering / related field

M.S. in Electrical Engineering / related field

Tools

YANG

OpenROADM

OpenConfig

OTAI

Job description

Working from business requirements, customer use cases and industry standards (such as ITU-T and IEEE), you will make and document trade-offs among cost, function, capacity and performance for network elements such as ROADMs and optical amplifiers.

NILightpath

How You Will Contribute and What You Will Learn

In this role, you will own the requirements and architecture of assigned Layer0 feature areas, and be accountable for their technical success from concept through release. Your key responsibilities will include:

• Shaping product features and requirements with Product Line Management, and recommending solutions to new feature requests based on feasibility, cost and risk
• Owning the system requirements, architecture specifications and acceptance criteria for these feature areas, and guiding development teams through implementation and validation
• Driving the system architecture of these feature areas with fellow architects and development leads, including interfaces and data models
• Architecting and validating the distributed, link-level control loops in these feature areas, such as power control, gain and tilt equalization and transient suppression
• Defining the system design rules and optical performance models these feature areas rely on, such as target power profiles and OSNR estimation
• Partnering with the product documentation team to describe features and operational concepts for customers
• Leading cross-functional feature teams to build consensus on architecture and technical concepts, and influencing their plans and priorities
• Representing these feature areas in technical engagements and demonstrations with key customers
• Mentoring engineers and architects on the team

Qualifications

Knowledge / Skills / Abilities

• Deep understanding of fiber transmission effects, such as power and OSNR evolution and fiber nonlinearities, and their impact on optical line system design
• Hands-on experience with optical networking equipment, including coherent transponders, EDFAs, Raman amplifiers and ROADM/WSS, and knowledge of OTN, Ethernet and SDN/GMPLS control plane
• Experience designing and validating closed- and open-loop, link-level control algorithms and optical performance monitoring to optimize end-to-end transmission
• Broad systems expertise, with a track record of writing and leading high-quality requirements and architecture specifications for robust, reliable end-to-end systems
• Extensive experience defining fault, performance and configuration management, service provisioning and control plane requirements for multi-layer networking products, especially at L0 and L1
• Working knowledge of data models for operating and monitoring optical networks, including YANG, ONF TAPI, OpenROADM and OpenConfig
• Familiarity with the SONiC Optical Transport Network Working Group, including the Optical Transport Abstraction Interface (OTAI)
• Sound, independent judgment on ambiguous and novel technical problems
• Excellent communication and presentation skills for internal and customer audiences
• Highly motivated collaborator, effective in cross-functional, cross-cultural and international teams

Education & Experience Requirements:

• Ph.D. in Electrical Engineering, Computer Science, Telecommunications, Optics, Physics or a related field + minimum 5 years of relevant work experience in optical transport or a related telecommunications area
• M.Sc. in the same fields + minimum 8 years of relevant work experience in optical transport or a related telecommunications area