Network Test Engineer

Net2Source (N2S); New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Net2Source (N2S) is seeking a senior Network Routing and Switching Engineer to lead testing, certification, and automation for enterprise and cloud-native networks. You will design lab tests, automate workflows, and certify patches across LAN/WAN platforms and data centers.

Responsibilities include collaborating on vendor offerings, driving improvements in testing coverage, and delivering clear documentation of results and certifications to engineering teams.

Qualifications

• Experience with routing protocols such as OSPF, BGP, and PIM.
• Cisco Catalyst/Nexus platforms experience.
• Knowledge of code certification and bug scrubs on IOS/XE/NX-OS.
• Strong Linux, networking, and automation foundation.
• Cloud networking concepts including Kubernetes and CNI.

Responsibilities

• Design, test, certify network hardware and lab environments.
• Develop automation in Python, Ansible, APIs, and IaC.
• Lead testing and certification projects; document findings and recommendations.
• Evaluate vendors and interoperability with IP appliances.
• Provide expert guidance to teams on platforms, designs, and testing improvements.

Skills

OSPF

BGP

Linux admin

Python

Ansible

Kubernetes

eBPF

Networking concepts

Cisco platforms

Git

ROBOT Framework

kubectl

Tools

IXIA/Spirent

Git

Docker

ROBOT Framework

kubectl

Job description

Network Routing and Switching Engineer is responsible for testing and certifying network hardware to ensure optimal performance, reliability, and compliance. This role is crucial for maintaining the integrity and efficiency of the organization's network infrastructure.

The successful candidate should have hands-on experience in functional testing, with the ability to identify automation opportunities and develop automated test solutions. Mid-level Python and Ansible skills are required to create, maintain, and enhance test automation workflows, improve test coverage, and increase operational efficiency.

A combination of networking expertise, Linux proficiency, automation skills, Kubernetes operations, and eBPF observability to design, test, automate, and operate modern enterprises and cloud-native network infrastructures at scale.

Working knowledge of cybersecurity principles, CVE analysis, and network risk assessment. Ability to evaluate vulnerabilities, assess operational and business risk, and support remediation, patch certification, and security validation activities across enterprise network platforms.

This individual's focus will be on lab testing and certifications with particular focus on the campus/ branch/ WAN-MAN/ Data Center/ Low latency/ limited interoperability with network appliances (firewalls/ load balancers)

Rapid certification of patches/ SMU/ codes – with particular focus but not limited to - Risk/ CVE driven events and rapid need for targeted & expedited certifications to ensure the given patch/ SMU/ code can be safely applied on production devices.

Interoperability with IP appliances like F5/ A10/ Fortinet/ SRX Load balancers and firewalls (MAB/ 802.1x, firewall & load balancers experience not necessary but a plus).

Proficiency with tools such as tcpdump, Wireshark, and Git, and the ability to develop automation using Python, Ansible, APIs, and Infrastructure-as-Code techniques.

Develop and design testing for various network hardware, including routers, switches.

Conduct Performance Tests: Perform performance tests to evaluate the functionality, speed, and reliability of network hardware.

Identify Issues: Detect and diagnose any hardware malfunctions, performance issues, or compatibility problems during testing.

Document and present recommendations and finding to the wider teams, including testing results and certifications.

He/ She will work on engineering standards and create best practice network documentation utilizing knowledge of industry and technical trends.

Providing guidance to the wider teams related to platforms and designs

This includes but is not limited to evaluating vendor offerings, collaborating with internal and external peers towards innovating, and becoming also responsible for the software and hardware testing of all future code releases and drive decisions about testing improvements.

Creating and updating standards and configuration templates, tracking bugs and vulnerabilities and providing expert level support of the production environment.

Heavily engage with vendors to research, understand and communicate industry trends and upcoming products & features of interest and benefit to the BUs.

The Ideal candidate is one that has prior worked on network engineering designs and testing plus evaluated products within a network lab; but not a must.

Experience:

Senior level, experienced, can lead projects and work independently.

8+ years of experience required with extensive experience with LAN/WAN network design, engineering, and code/ feature certification/ validation.

Experience with testing design and certification of products in LAB environments is highly desirable.

CCIE or at a min CCNP level experience.

Skills Required:

Demonstrate knowledge of working with protocols such as OSPF, BGP, IGMP and PIM.

Experience with Cisco Platforms such as Catalyst and Nexus.

Knowledge of certification of new code, and bug Scrubs on IOS/ XE/ NXOS/ and limited XR.

Good foundation in Linux administration, networking, and automation.

Cloud-native networking concepts, including Kubernetes architecture, container networking (CNI), and operational tools such as kubectl.

Familiarity with eBPF-based networking and security, particularly platforms such as Cilium is major plus. This includes policy enforcement, observability, service load balancing, BGP integration, and troubleshooting using eBPF maps and kernel-level telemetry

Good knowledge of Python, Github.

Ansible playbooks authoring and how to integrate Ansible with ROBOT framework for seamless automation is beneficial.

Some proficiency in the ROBOT Framework is a big plus

Experience with Arista Platforms such as 7280, 7504, 7060 etc.

Experience developing strategies with multiple vendors.

Experienced with creating design documents for each certification which includes engineering guidelines.

Experience with Tools such as IXIA and / or Spirent to test and certify various designs and troubleshoot networks issues.

Excellent knowledge of IP Routing, BGP, OSPF, and layer2 protocols like Spanning-tree.

Understanding of network protocols, network platforms such as Cisco/Arista to design and troubleshoot new implementations.

Multicast: IGMPv2/3, PIM-SM, Static RP, RP-Anycast, MSDP.

IP Routing Platforms, ISR4k, ASR1K, Catalyst.

Cisco/ Arista Switching Platforms Catalyst switches.

strong knowledge of Switching and Switching mechanisms like CEF, TCAM.

Experience with MAB/ Port Security/ NAC/ 802.1x/ QoS/ IPSec is desirable.

Understanding of new protocols being deployed intra and inter Data Center.

AWS (or Azure cloud equivalent) is desirable.

Data Center power and cooling, cabling 10/ 25G/ 40G/ 50G/ 100G.

Cloud computing, Virtualization industry standard and trends, server technologies a plus.

Router hardening technologies, DDoS mitigation, routing protocol encryption, SSH implementation, out-of-band network design, 802.1x, NAC, IPSec.

L2 and L3 QoS are a plus.

Other Requirements:

Manage vendors, coordinate testing and evaluate PoC.

Possess ability to quickly and effectively interpret data.

Possess ability to perform very complex implementations with little or no guidance and/or oversight from a project manager.

Ability to work independently and within a global testing team environment.

Excellent verbal and written communication skills are a strong must - candidate must possess excellent business writing and presentation skills.

Ability to prioritize effectively with good time management skills.

Excellent interpersonal skills, strong logical and analytical skills

Deep sense of ownership/accountability / must think as an owner and be proactive is a huge must

Ability to move quickly and multitask in a fast-paced environment.

Stakeholder management and providing reports and overviews to both technical and non-technical