Principal Software Engineer, WAN Assurance

At Juniper, we believe the network is the single greatest vehicle for knowledge, understanding, and human advancement the world has ever known.
To achieve real outcomes, we know that experience is the most important requirement for networking teams and the people they serve. Delivering an experience-first, AI-Native Network pivots on the creativity and commitment of our people. It requires a consistent and committed practice, something we call the Juniper Way.

Job Description

We are seeking a talented and motivated Principal Engineer to join our dynamic team in building carrier-grade networking solutions on a multi-tenant SaaS platform. In this role, you will play a pivotal role in designing, developing, and optimizing our core services. As a key member of our engineering group, you will work on cutting-edge technologies, collaborate with cross-functional teams, and drive impactful solutions. You will leverage your deep understanding of networking principles, distributed systems, and cloud technologies to deliver a reliable, performant, and secure solution to our global customer base.

Responsibilities

• Technical Leadership: Work with product managers, architects, and other engineers to understand the software requirements, and define corresponding functional and design specifications. Drive technical decisions and contribute to the overall strategy.
• Software Development: Design, develop, test, deploy, and maintain high-quality, production-grade software, with a strong emphasis on backend systems. Write clean, efficient, and well-documented code.
• System Design & Optimization: Design and implement micro-services for high availability, scalability, performance, and security within our SaaS platform. Identify and resolve complex performance bottlenecks and system issues.
• Networking Expertise: Apply deep knowledge of networking protocols (e.g., TCP/IP, HTTP/S, DNS, NAT), network security, and cloud networking concepts to build robust and secure solutions.
• SaaS & Cloud Native Development: Design and implement solutions leveraging cloud platforms (e.g., AWS, Azure, Google Cloud Platform) and containerization technologies (e.g., Kubernetes, Docker).
• Collaboration: Collaborate effectively with cross-functional teams including product management, QA, SRE, and Juniper technical assistance team.
• Code Quality & Best Practices: Champion best practices in software development, including code reviews, testing methodologies, CI/CD, and DevOps principles.
• Problem Solving: Troubleshoot and resolve complex technical issues in a timely and effective manner, often in production environments.
• Innovation & Research: Stay abreast of emerging technologies and industry trends in networking, SaaS, and software engineering. Propose and prototype new ideas and solutions.
• Documentation: Create and maintain comprehensive technical documentation for designs, APIs, and operational procedures.

Minimum Qualifications

• Experience: A minimum of 15 years of professional software development experience, with a significant portion focused on backend systems and distributed applications.
• Programming Languages: Proven expertise in one or more backend programming languages such as Golang (preferred), Java or Python.
• Networking Fundamentals: Deep understanding of networking protocols, network architectures, network security, and common networking concepts is essential.
• Microservices & Orchestration: Proven experience in designing, building, and deploying scalable microservices using Docker, Kubernetes, etc.
• SaaS & Cloud Experience: Significant experience in building, deploying, and operating scalable SaaS applications in a Public Cloud (AWS/Google Cloud Platform) environment.

Preferred Qualifications

• Distributed Systems: Strong understanding of distributed systems principles, including concurrency, scalability, fault tolerance, and consistency.
• Databases: Experience with various database technologies, including relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., DynamoDB, Redis) databases.
• APIs & Integrations: Experience designing, building, and consuming RESTful APIs and other integration technologies like WebSocket, Kafka, etc.
• Security Focus: Experience with network security principles, threat modelling, and secure coding practices is an added advantage.
• Problem-Solving Skills: Excellent analytical and problem-solving skills, with the ability to tackle complex technical challenges.
• Communication & Collaboration: Strong verbal and written communication skills. Ability to articulate complex technical ideas clearly and concisely. Proven ability to work effectively in a collaborative team environment.
• Leadership: Demonstrated ability to provide technical leadership, mentor other engineers, and drive projects to successful completion.

Minimum Salary: $231,200.00

Maximum Salary:$332,350.00

The pay range for this position is expected to be between $231,200.00 and $332,350.00/year; however, the base pay offered may vary depending on multiple individualized factors, including market location, job-related knowledge, skills, and experience. The total compensation package for this position also includes medical benefits, 401(k) eligibility, vacation, sick time, and parental leave. Additional details of participation in these benefit plans will be provided if an employee receives an offer of employment.

If hired, employee will be in an "at-will position" and the Company reserves the right to modify base salary (as well as any other payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Juniper's pay range data is provided in accordance with local state pay transparency regulations. Juniper may post different minimum wage ranges for permanent residency petitions pursuant to US Department of Labor requirements.

ABOUT JUNIPER NETWORKS

Juniper Networks challenges the inherent complexity that comes with networking and security in the multicloud era. We do this with products, solutions and services that transform the way people connect, work and live. We simplify the process of transitioning to a secure and automated multicloud environment to enable secure, AI-driven networks that connect the world. Additional information can be found at Juniper Networks ( or connect with Juniper on Twitter, LinkedIn and Facebook.

WHERE WILL YOU DO YOUR BEST WORK?

Wherever you are in the world, whether it's downtown Sunnyvale or London, Westford or Bengaluru, Juniper is a place that was founded on disruptive thinking - where colleague innovation is not only valued, but expected. We believe that the great task of delivering a new network for the next decade is delivered through the creativity and commitment of our people. The Juniper Way is the commitment to all our colleagues that the culture and company inspire their best work-their life's work. At Juniper we believe this is more than a job - it's an opportunity to help change the world.

At Juniper Networks, we are committed to elevating talent by creating a trust-based environment where we can all thrive together. If you think you have what it takes, but do not necessarily check every single box, please consider applying. We'd love to speak with you.

Additional Information for United States jobs:

ELIGIBILITY TO WORK AND E-VERIFY

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

Juniper Networks participates in the E-Verify program. E-Verify is an Internet-based system operated by the Department of Homeland Security (DHS) in partnership with the Social Security Administration (SSA) that allows participating employers to electronically verify the employment eligibility of new hires and the validity of their Social Security Numbers.
Information for applicants about E-Verify / E-Verify Informacin en espaol: This Company Participates in E-Verify / Este Empleador Participa en E-Verify
Immigrant and Employee Rights Section (IER) - The Right to Work / El Derecho a Trabajar

E-Verify is a registered trademark of the U.S. Department of Homeland Security.

Juniper is an Equal Opportunity workplace. We do not discriminate in employment decisions on the basis of race, color, religion, gender (including pregnancy), national origin, political affiliation, sexual orientation, gender identity or expression, marital status, disability, genetic information, age, veteran status, or any other applicable legally protected characteristic. All employment decisions are made on the basis of individual qualifications, merit, and business need.