Visa · 2 days ago
Sr. Network Engineer
Ashburn, VA
Full-time
Hybrid
Mid, Senior Level
$111K/yr - $172K/yr
5+ years expVisa is a world leader in payments and technology, seeking a Senior Network Test & Certification Engineer with deep expertise in network modeling, simulation, cloud, and automation. This role is critical for validating network changes for performance, reliability, and compliance before deployment into production.
BankingFinanceFinancial ServicesInformation TechnologyMobile PaymentsPayments
Responsibilities
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
Qualification
Required
2+ years of relevant work experience and a Bachelors degree, OR 5+ years of relevant work experience
Preferred
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
Benefits
Medical
Dental
Vision
401 (k)
FSA/HSA
Life Insurance
Paid Time Off
Wellness Program
Company
Visa
Visa is a multinational financial services company that facilitates electronic payment systems throughout the world.
10001+ employees
H1B Sponsorship
Visa has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (459)
2024 (424)
2023 (416)
2022 (515)
2021 (351)
2020 (407)
Funding
Current Stage
Public CompanyTotal Funding
unknownKey Investors
TNB Financial Services
2016-09-10Post Ipo Equity
2008-03-19IPO
Leadership Team
Ryan McInerney
Chief Executive Officer
Chris Suh
EVP & Chief Financial Officer
Recent News
2026-01-09
thepeninsulaqatar.com
2026-01-09
Company data provided by crunchbase