Software Engineer
Bangalore · On-site · 1–3 yrs · Junior · Full-time
- java
- spring boot
- rest
- grpc
- python
- pytest
- jenkins
- gitlab
- docker
- kubernetes
Build cloud-native optical network SDN microservices in Java with Python automation testing at Cisco Bangalore.
Apply on Cisco's site Ask for a referral Interview prep
Interview prep: questions this posting points to
- Walk me through how you'd debug a packet drop issue on a Nexus switch where traffic matching an ACL rule is being forwarded incorrectly through the CPU packet path instead of being hardware-switched.
- You're on-call for the Nexus switch software and a customer reports intermittent packet loss only under high QoS queue pressure in production. Walk me through how you'd triage this and what root cause analysis you'd write afterward.
- Tell me about a time you identified and debugged a sophisticated issue in production that required root cause analysis. What was the issue, and how did you solve it?
Read the full job description
Meet the team: The Cisco Optical Network Controller (CONC) team is building next-generation SDN software to automate, visualize, and control optical networks across multi-layer infrastructures. Our solution is built on modern, cloud-native microservices architecture. In our team, engineers have end-to-end quality and feature ownership: we build the software and we automate the testing ourselves , writing robust backend services in Java and automated test suites in Python . Your Impact: Microservices Development: Design, implement, and maintain scalable microservices in Java (Spring Boot / REST / gRPC) for optical network management and control plane workflows. • Full Dev-Test Ownership: Write comprehensive unit, integration, and end-to-end automated tests in Python (PyTest, custom test harnesses) as part of your day-to-day feature deliverables. • Continuous Integration: Integrate automated Python test suites into CI/CD pipelines (Jenkins / GitLab CI) to guarantee zero regression and rapid release cycles. • Collaborate & Deliver: Work closely with Technical Leads, Product Managers, and team members in an Agile Scrum model to deliver resilient, production-ready software.
Minimum Qualifications
Education &
Experience
Bachelor's or Master's in Computer Science, Computer Engineering, Electrical Engineering, or related discipline with 1 to 3 years of hands-on software development experience. • Core Java Skills: Strong foundation in Core Java , OOP design patterns, data structures, and building RESTful microservices. • Python Automation Skills: Practical experience writing clean, maintainable Python automation scripts/test suites for API, integration, and functional validation. • Containers & Orchestration: Hands-on familiarity with Docker , containerized deployments, and basic Kubernetes . • Database & Messaging: Working knowledge of relational/NoSQL databases and messaging systems (e.g., Kafka, RabbitMQ). • Mindset: Strong quality-first mentality with a proactive attitude toward diagnosing and resolving automated test failures.
Preferred Qualifications
Familiarity with Optical Networking / SDN concepts, YANG data modeling, or NETCONF/RESTCONF protocols Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.
Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.
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