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From the employer's careers site First seen 27 Oct 2026

Senior Engineer - Cisco Optical Network Controller (CONC)

Cisco senior full-time

The employer hasn't listed a salary.

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Description

The Cisco Optical Network Controller (CONC) team leads the industry in optical SDN controller solutions, powering mission-critical tier-1 service provider networks globally.

As a Senior Engineer on this team, you will drive both architectural excellence in Java microservices and automated validation frameworks in Python.

Your Impact

  • Technical Design & Architecture: Lead the design and implementation of complex, resilient Java microservices for topology discovery, service provisioning, circuit path computation, and lifecycle management.
  • Dev-Test Architecture & Strategy: Architect scalable, reusable Python test automation frameworks; mentor engineers on writing robust end-to-end tests for distributed edge cases.
  • Performance & Scale Optimization: Profile, troubleshoot, and optimize microservice performance, concurrency, and memory footprint in containerized Kubernetes clusters.
  • Code Quality & Mentorship: Drive rigorous code reviews, test-driven development (TDD), automated regression guardrails, and technical onboarding for junior engineers.
  • Release & Customer Quality: Partner with Product Leads and Architects to ensure carrier-grade reliability and rapid turnaround on critical customer escalations.

Minimum Qualification

  • Education & Experience: Bachelor's or Master's in CS/ECE/EE with 4 to 9 years of progressive experience designing and developing distributed enterprise or networking software.
  • Advanced Java Mastery: Deep expertise in Java (Spring Boot / Micronaut), concurrency/multithreading, distributed data caching, transactional consistency, and REST/gRPC API design.
  • Python Test Engineering Expertise: Extensive experience designing modular, automated Python test frameworks (PyTest, Robot Framework, mock servers) to simulate large-scale network topologies and microservice interlocks.
  • Cloud-Native & Distributed Systems: Strong experience with Kubernetes, Docker, Kafka, distributed state management, and Linux systems internals.

Preferred Qualification

  • Deep domain experience in Optical Networking (ROADM, Transponders, OTN, DWDM), L0-L3 network topologies, or PCE/Path Computation algorithms.

Skills

Nice to have

  • Optical Networking
  • ROADM
  • Transponders
  • OTN
  • DWDM
  • PCE
  • Path Computation algorithms

Ready to apply?

You apply with the employer directly. Their original posting is here: https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Bangalore-India/Software-Engineer_2026383

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