Aravind Raj focused on improving the reliability of PTF-based packet testing in the sonic-net/sonic-mgmt repository during January 2026. He addressed a persistent AssertionError in the test_hash workflow by refining packet formation logic in Python, specifically within test_fib.py. His work involved correcting the parameter order in the check_ipv4_route function and adjusting the ipinip_pkt assignment in check_ipv6_route, which stabilized both IPv4 and IPv6 route validation tests. By enhancing the robustness of automated network testing and reducing flaky test outcomes, Aravind demonstrated strong skills in Python, networking, and test automation, contributing to more stable CI and streamlined debugging.