Test Automation Engineer at Horizontal Talent Test Automation Engineer at Horizontal Talent in Foster City, California Posted in 12 days ago. $61.00 - $97.00 per hour Join a hands-on engineering team focused on validating Ethernet-connected sensor networks for an advanced autonomous vehicle platform. This onsite role in Foster City, CA offers the opportunity to build robust automation frameworks, strengthen network reliability, and support testing across systems, integration, software, and sensor engineering. Responsibilities 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 Skills 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 Horizontal Talent is committed to fostering a diverse, equitable, and inclusive workplace where every person is respected, supported, and empowered to contribute. We welcome candidates from all backgrounds who bring the skills and experience needed for this opportunity. By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex. Please apply through this online posting or by visiting our Job Board at www.horizontaltalent.com/job-board. Applications will be accepted for 4 weeks. For those that join the team, we offer competitive compensation and benefits including medical, dental, vision, and retirement. Check out all we have to offer and how you can become part of the Horizontal Talent Team. The pay range for this role is $61 - $97 per hour based on qualifications and experience.