VPN & WAN Optimization Tester

Role & responsibilities

• VPN Protocol Testing: Conduct thorough testing of various VPN protocols (OpenVPN, IPSec, IKEv2, WireGuard, etc.) to ensure proper functionality and performance. • End-to-End Testing: Execute end-to-end testing on VPN software across different platforms (Windows, macOS, Linux, iOS, Android) to ensure compatibility and stability. • Performance Testing: Assess VPN performance under varying network conditions, focusing on latency, throughput, and connection stability. • Security Testing: Identify and evaluate potential security vulnerabilities in VPN implementations, including testing for data leakage, DNS leaks, and other security threats. • WAN Optimization Testing: Test and validate WAN optimization technologies, including deduplication, compression, protocol optimization, and TCP acceleration to ensure optimal application performance over wide-area networks. • Optimization Evaluation: Evaluate how WAN optimization solutions impact the performance of VPN connections, and work on improving the overall network efficiency in a high-latency or lowbandwidth environment. • Troubleshooting: Reproduce, debug, and isolate defects related to VPN and WAN optimization connectivity and performance, working closely with developers to fix issues. • Automation: Develop and maintain automated test scripts to ensure consistent testing for VPN and WAN optimization functionality, load, and performance. • Documentation: Document test cases, test plans, results, and defects in detail to ensure traceability and accountability. • Collaboration: Collaborate with development, product management, and other QA teams to provide feedback and contribute to product enhancements. • Reporting: Provide detailed reports on test results, issues, and improvements, ensuring transparency in the testing process.

Required Qualifications:

• Bachelors degree in Computer Science, Information Technology, Engineering, or a related field (or equivalent experience).

• 3+ years of experience in software testing, with a focus on VPN and WAN optimization products and networking technologies.

• Strong knowledge of VPN technologies and protocols (IPSec, PPTP, L2TP, OpenVPN, WireGuard, Cisco VPN, Microsoft Always on)

• Solid understanding of WAN optimization technologies (e.g., Riverbed SteelHead, Cisco WAAS, Silver Peak) and their impact on network performance.

• Experience testing networking protocols like TCP/IP, DNS, HTTP/HTTPS, and routing.

• Proficiency with networking tools such as Wireshark, tcpdump, NetFlow, and others for analyzing network traffic.

• Hands-on experience with testing VPN clients, WAN optimization devices, and servers on multiple platforms (Windows, macOS, Linux, iOS, Android).

• Strong knowledge of firewalls, proxies, and NAT traversal as it relates to VPNs and WAN optimization.

• Experience with performance testing tools such as JMeter, LoadRunner, or similar.

• Knowledge of security testing techniques (pen testing, vulnerability assessments) to identify weaknesses in VPN and WAN optimization implementations.

• Familiarity with automation testing tools like Selenium, Python, or similar scripting languages for network-based testing.

• Strong troubleshooting skills and attention to detail.