> Markdown version of [/jobs/ext/3975784-test-automation-engineer](https://www.wearedevelopers.com/jobs/ext/3975784-test-automation-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Test Automation Engineer - **Company:** Horizontal Talent - **Location:** Foster City, CA, United States - **Experience:** Expert - **Salary:** $126,880.0 - $201,760.0 - **Contract:** Permanent contract - **Skills:** Address Resolution Protocols, Automation of Tests, Bash Shell, Code Coverage, Computer Networks, Continuous Integration, Software Debugging, DevOps, Ethernet, Hardware-In-The-Loop Simulation, Internet Control Message Protocol, Traceroute, OSI Models, Python (Programming Language), Network Troubleshooting, Pcap, Simple Network Management Protocols, TCP/IP, Tcpdump, Wireshark, Virtual Local Area Networks, Performance Testing, Pytest, Information Technology - **Published:** October 27, 2026 - **Apply:** https://www.dice.com/job-detail/8161347a-ad10-4578-ac04-ad8dd88bd954 ## About the Role * BS or MS in Computer Science, Electrical Engineering, or a related field * 6+ years of relevant experience in network testing, automation, or a closely related area * Strong understanding of OSI layers, TCP/IP, UDP, ICMP, ARP, SNMP, and VLAN concepts * Advanced Python and Bash scripting skills, with experience building test automation using tools such as pytest * Hands-on experience with network troubleshooting tools such as Wireshark, iPerf, tcpdump, traceroute, and ethtool * Solid CI/CD and DevOps experience * Ability to debug issues across the full networking stack * Strong communication, organization, and documentation skills Preferred Skills * Experience with DoIP and UDS over IP * Background in automotive Ethernet standards such as 100BASE-T1 or BroadR-Reach * Familiarity with H-MTD or FAKRA connectors * Knowledge of time synchronization protocols such as IEEE 1588v2/PTP or 802.1AS * Experience supporting bench or air-gapped environments * Exposure to advanced Linux networking and HIL infrastructure, including DAQ and relay-controlled power rails ## Description * Develop and maintain Python-based automation frameworks for Ethernet compliance, integration, and performance testing * Create PCAP and tcpdump-based tools, along with fault injection scripts, to validate network behavior and recovery scenarios * Set up and support VLAN-segmented network environments across bench and hardware-in-the-loop test systems * Work with power supplies, DAQ systems, relay controls, and related lab infrastructure to support validation activities * Test interoperability between switches and sensors while helping ensure security and PPAP-related Ethernet standards are met * Document test frameworks, system setups, methodologies, and technical configurations clearly and thoroughly * Partner closely with cross-functional engineering teams to troubleshoot issues and improve test coverage