Senior Network Test Engineer

KellyMitchell Group; Irving (TX); On-site; USD 58,000 - 84,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

ESOP

401K

Job summary

KellyMitchell Group is seeking a Senior Network Test Engineer to validate store network infrastructure, POS applications, peripherals, and connected devices across lab, mock-store, pilot-store, and production environments.

You will partner with Network Engineering, InfoSec, Store Operations, and project leadership to identify risks, define test strategies, execute validation, troubleshoot issues, and confirm deployment readiness for store technology solutions.

Qualifications

• 6+ years in test engineering or QA for networks.
• Strong knowledge of IPv4/IPv6, DNS, DHCP, and ICMP.
• Experience with lab, mock-store, and production environments.

Responsibilities

• Build, configure, test, and maintain network lab environments used to validate new technologies before production deployment.
• Define, develop, and review test cases, test plans, test scenarios, and overall test strategy.
• Perform network-performance testing including latency, packet loss, and bandwidth analysis.
• Troubleshoot issues across application, device, network, security, and configuration layers.

Skills

Test engineering

IPv4/IPv6

DNS/DHCP

Wireshark

Packet capture

Troubleshooting

Tools

Wireshark

nslookup

tracert

dig

Job description

Job Summary

Our client is seeking a Senior Network Test Engineer to join their team. This is a senior-level quality engineering role responsible for validating store network infrastructure, POS applications, peripherals, and connected devices across lab, mock-store, pilot-store, and production environments. This role partners with Network Engineering, InfoSec, Store Operations, application teams, vendors, and project leadership to identify risks, define test strategies, execute validation, troubleshoot issues, and confirm deployment readiness for store technology solutions.

Core Responsibilities

• Build, configure, test, and maintain network lab environments used to validate new technologies, configurations, upgrades, and network solutions before production deployment
• Identify business, technical, and operational risks and contribute to user story and requirement definition
• Define, develop, and review test cases, test plans, test scenarios, and overall test strategy
• Read and analyze network requirements and Change Requests; identify testable, ambiguous, and missing requirements
• Convert requirements and Change Requests into positive, negative, boundary, integration, and regression test scenarios
• Build and maintain mock-store and lab environments that represent real store network and device configurations
• Perform integration and functional testing of store devices after a Change Request is implemented
• Execute connectivity, reachability, configuration, DNS, routing, firewall, port, and device-access validation
• Perform network-performance testing, including latency, packet loss, bandwidth, and response-time analysis
• Execute network failover, recovery, reliability, and stability testing
• Test POS applications, payment devices, scanners, cameras, printers, and other store peripherals and cloud-connected services
• Capture logs, packet traces, screenshots, test evidence, and performance measurements to support defect analysis
• Troubleshoot issues across application, device, network, security, and configuration layers and help determine root cause
• Manage defects through triage, prioritization, retesting, closure, and regression validation with full traceability
• Coordinate test execution with Network Engineering, InfoSec, Store Operations, engineering teams, vendors, and AT&T Support
• Support pilot-store validation, go/no-go reviews, production verification, and post-deployment issue investigation
• Recommend wired or wireless implementation approaches based on reliability, security, bandwidth, cost, and maintainability
• Improve repeatability through automation, scripting, reusable test utilities, and standardized test evidence

Required Skills/Experience (Must-Haves)

• 6+ years of experience in test engineering, systems testing, network testing, or quality engineering
• Strong understanding of IPv4/IPv6 addressing and subnetting, TCP versus UDP, DNS, DHCP, ARP, and ICMP
• Working knowledge of HTTP/HTTPS, VLANs, VPNs, NAT, firewalls, routing, switching, Wi‑Fi, and PoE
• Experience understanding Change Requests, validating implemented configurations, and testing store devices after changes are applied
• Experience executing connectivity, reachability, performance, failover, recovery, reliability, and stability tests
• Ability to design positive, negative, boundary, integration, functional, regression, and end-to-end test scenarios
• Hands‑on experience with Wireshark or similar packet‑capture tools; basic packet-capture interpretation is required
• Experience using ping, tracert/traceroute, nslookup, dig, and comparable connectivity or DNS troubleshooting tools
• Ability to analyze connectivity failures and identify DNS, routing, firewall, port, application, network, or configuration issues
• Experience interpreting logs and error messages and performing basic network isolation and troubleshooting
• Experience maintaining traceability from requirements to test cases to defects
• Strong written and verbal communication skills with the ability to produce clear test evidence and technical documentation

Preferred Skills/Experience (Nice-to-Haves)

• Experience with Juniper and Aruba network environments
• Experience with convenience retail, store technology, point-of-sale, payment, or other high-availability transaction systems
• Experience with API, WebSocket, device, cloud-service, or hardware-integration testing
• Experience with automated testing frameworks, scripting, packet analysis, or performance testing
• Experience with pilot rollouts, change control, InfoSec reviews, and production-readiness assessments
• Experience creating reusable test utilities, automation, or diagnostic scripts

Work Environment

Location: Irving, TX Onsite 5 days a week Contract through April 2027 – Potential for extension

Compensation & Benefits

Pay Range: The approximate pay range for this position is between $42.00 and $61.00. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums.

• Medical, Dental, & Vision Insurance Plans
• Employee-Owned Profit Sharing (ESOP)
• 401K offered

About KellyMitchell

At KellyMitchell, our culture is world class. We’re movers and shakers! We don’t mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment's notice.