Senior Software Engineer – Java, Security & SD-WAN Platform from 8+ Years

123 Cisco Systems (India) Private Limited; Bengaluru; On-site; INR 1,500,000 - 2,000,000; Full time

Job summary

123 Cisco Systems (India) Private Limited is looking for a seasoned software developer to enhance the SD-WAN Manager platform layer. You will focus on scalable backend services and collaborate across teams to contribute to architectural excellence.

The ideal candidate should have over 8 years of experience, strong Java skills, and knowledge of distributed systems and cloud-native technologies.

Qualifications

• 8+ years of software development experience.
• Proven ability to design, build, and scale high-performance applications.
• Experience with security protocols and reliable systems.

Responsibilities

• Develop and enhance the platform layer of SD‑WAN Manager.
• Collaborate across teams to improve platform scalability.
• Contribute to platform architecture and runtime reliability.

Skills

Java

Data Structures & Algorithms

Distributed Systems

Cloud-native Technologies

Linux-based Environments

CI/CD

Education

BE/BTech/MS/MCA in Computer Science, Electrical Engineering, or related field

Tools

Observability and Monitoring Solutions

AI-powered Development Tools

Job description

Overview

Meet the team. The Routing SD‑WAN Group develops intelligent, secure, and scalable networking solutions that help enterprises connect and protect their networks from edge to cloud.

Responsibilities

Develop and enhance the platform layer of SD‑WAN Manager, focusing on scalable backend services and distributed systems. Design and build foundational platform capabilities that support multiple product teams and applications. Demonstrate strong proficiency in software development, with proven DSA, multithreading, and OOP fundamentals, along with networking and security experience, to build scalable, secure, and high‑performance solutions. Contribute to platform architecture, service frameworks, developer tooling, build systems, and runtime reliability. Collaborate across teams to improve platform scalability, maintainability, and operational excellence.

Minimum Qualifications

• 8+ years of software development experience with a BE/BTech/MS/MCA in Computer Science, Electrical Engineering, or a related field.
• Good expertise in Java and data structures & algorithms (DSA), with a proven ability to design, build, and scale high‑performance applications, services, and APIs.
• Experience with observability and monitoring solutions, telemetry pipelines, performance optimization, and security protocols, including authentication, authorization, secure coding, and building reliable, resilient systems.
• Experience developing scalable applications and services, with exposure to distributed systems, cloud‑native technologies and Linux‑based environments.
• Passion for solving complex technical challenges, with hands‑on experience in debugging, root‑cause analysis, CI/CD, automated testing, and modern quality engineering practices.
• Strong communication and collaboration skills, combined with experience using AI‑powered development tools and agentic assistants to enhance productivity, innovation, and engineering effectiveness.

Preferred Qualifications

• Experience in Python or Go.
• Experience with SD‑WAN, routing, controller‑based networking, or network management systems.
• Understanding of digital certificates (issuance, renewal, revocation, configuration, maintenance, etc.).