Sr. Network Engineer

Company Description

Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhere by being the best way to pay and be paid.

Make an impact with a purpose-driven industry leader. Join us today and experience Life at Visa.

Job Description

We are seeking a Senior Network Test & Certification Engineer with deep expertise in network modeling, simulation, cloud, and automation, and the ability to leverage Generative AI (GenAI) technologies to streamline testing workflows, accelerate certification processes, and optimize network designs. This position plays a critical role in ensuring all network changes are thoroughly validated for performance, reliability, and compliance before deployment into production.

In this role, you will collaborate closely with Global Network Engineering and Operations teams to test and certify network changes and new designs using advanced network modeling tools. Acting as a technical specialist, you will work independently or as part of a team, requiring only minimal guidance in complex scenarios.

Some travel (up to 10%) may be required for training, project-related activities, and vendor engagements.

RESPONSIBILITIES:

This is an individual contributor role responsible for testing, analyzing and validating complex network configurations and designs prior to deployment in the production network.

Conduct pre-implementation testing of network change scripts using Riverbed's NetPlanner and EVE-NG modeling tool.

Develop, execute, and automate test plans to validate cloud-based network architectures, connectivity, and security across platforms such as AWS, Azure, and Google Cloud.

Test the change scripts, document and publish test results from testing, and review findings with stakeholders.

Evaluate emerging GenAI tools to streamline workflows and enhance overall efficiency.

Automate repetitive tasks to improve productivity and reduce manual effort.

Leverage network modeling technologies to test network designs, optimize network infrastructures in alignment with industry best practices.

Build network models to simulate production environments prior to test pre-change and post-change network state.

Gather and analyze network and application data to support accurate simulation model creation and testing.

Perform network design analysis and validate configurations to ensure optimal performance and catch any configuration issues prior to the change.

Collaborate with cross-functional teams including Global Network Engineering, Global Network Architecture, and Global Network Operations to ensure alignment with design requirements.

Partner with project managers to ensure timely completion of testing and certification activities without impacting project timelines.

This is a hybrid position. Expectation of days in office will be confirmed by your hiring manager.

Qualifications

Basic Qualifications
2+ years of relevant work experience and a Bachelors degree, OR 5+ years of relevant work experience

Preferred Qualifications
3 or more years of work experience with a Bachelor's Degree or more than 2 years of work experience with an Advanced Degree (e.g. Masters, MBA, JD, MD)
Strong network engineering expertise with experience in design, configuration, and troubleshooting of complex network infrastructures.
In-depth knowledge of TCP IP and routing protocols including MPLS, BGP, OSPF, RIP, and EIGRP.
Proficient in advanced networking technologies: IPSec, SSL, HSRP, VRRP, VXLAN, MLAG, NAT, MPLS, VPN, EVPN, SDN and Load Balancing.
Extensive hands-on experience with Arista, Juniper, Cisco platforms, and F5 Big-IP load balancers.
Skilled in network simulation and modeling tools including EVE-NG, Cisco Modeling Lab (CML), and Riverbed NetPlanner NetIM.
Strong knowledge of AWS, Azure, and Google Cloud networking services, including VPC design, subnets, routing, load balancing, VPN, Direct Connect, and ExpressRoute.
Strong understanding of network monitoring and analysis tools: SNMP, NetFlow, and flow analysis.
Proficient in automation and scripting using Python, Ansible, GIT, Jenkins, REST API, gRPC.
Experienced with NETCONF, YANG, JSON, XML, YAML for network automation and configuration management.
Excellent analytical skills for interpreting large datasets into actionable recommendations and solutions.
Proven ability to deliver results under tight deadlines, including rapid turnaround of network models.
Strong team collaboration skills with the ability to work cross-functionally and communicate effectively with both technical and non-technical stakeholders.
Hands on experience with other modeling tools like EVE-NG, Cisco CML
Advanced Network Industry certification e.g. CCIE and JNCIE
Master's degree in Computer Science, Engineering, Information Technology, Information Systems, Telecommunications, or related technical field
Network programming using Ansible, Python

Additional Information

Work Hours: Varies upon the needs of the department.

Travel Requirements: This position requires travel 5-10% of the time.

Mental/Physical Requirements: This position will be performed in an office setting. The position will require the incumbent to sit and stand at a desk, communicate in person and by telephone, frequently operate standard office equipment, such as telephones and computers.

Visa is an EEO Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. Visa will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.

Visa will consider for employment qualified applicants with criminal histories in a manner consistent with applicable local law, including the requirements of Article 49 of the San Francisco Police Code.

U.S. APPLICANTS ONLY: The estimated salary range for this position is $110,700 to $171,800 USD per year, which may include potential sales incentive payments (if applicable). Salary may vary depending on job-related factors which may include knowledge, skills, experience, and location. In addition, this position may be eligible for bonus and equity. Visa has a comprehensive benefits package for which this position may be eligible that includes Medical, Dental, Vision, 401 (k), FSA/HSA, Life Insurance, Paid Time Off, and Wellness Program.