Connectivity Software Engineer
Designs, implements, and optimizes Bluetooth/BLE and Wi-Fi connectivity features in Linux kernel drivers and system services for OpenAI products. Requires deep expertise in C/C++, wireless protocols, and Linux systems programming with hands-on shipping experience.
About the job
Responsibilities
- Design, implement, and debug Bluetooth/BLE and Wi-Fi features across kernel drivers, BlueZ/wpa_supplicant/hostapd, and systemd/D-Bus services
- Deliver robust pairing, bonding, and provisioning flows (GATT/GAP, LE Audio/LC3, WPA3/802.1X, captive portals, NAN)
- Optimize link performance: throughput, latency, jitter, roaming, coexistence (BT↔Wi-Fi), and power modes (TWT, WoWLAN)
- Build reliable network management using NetworkManager/nmcli, nl80211/cfg80211/mac80211, DNS/DHCP/mDNS, P2P/SoftAP
- Instrument and analyze with packet captures and tooling (btmon/hcidump, Wireshark, iperf, eBPF/perf, spectrum sniffers)
- Drive interoperability and certification readiness (Bluetooth SIG, Wi-Fi Alliance) and resolve field issues with root-cause fixes
- Contribute to OTA-safe configuration, telemetry, and diagnostics for fleet-scale operation
Requirements
- Deep experience shipping wireless features on Linux-based products
- Highly proficient in C/C++ with scripting experience (Python or shell) and systems debugging (gdb, strace, logs, packet traces)
- Deep knowledge of Bluetooth Classic/BLE (HCI, L2CAP, GATT/GAP, profiles) and Wi-Fi (802.11 a/b/g/n/ac/ax, WPA2/3, nl80211, NAN)
- Hands-on experience with BlueZ, wpa_supplicant/hostapd, NetworkManager, and driver bring-up on ARM64 or x86 platforms
- Proven track record of improving real-world performance and reliability under RF constraints
Preferred Qualifications
- Experience with LE Audio (LC3), BLE Mesh, advanced roaming (802.11k/v/r), QoS/WMM, multicast/IGMP
- Coexistence tuning across radios (BT/Wi-Fi/UWB/mmWave) and antenna/RF fundamentals with test equipment workflows
- Familiarity with UWB (IEEE 802.15.4z, FiRa); mmWave/Wi-Gig (802.11ad/ay)
- Experience with security and provisioning at scale (EAP-TLS, device identity, secure boot, disk/network hardening)
- Background in building factory test, interoperability, and certification test plans; upstream/open-source contributions
Skills
C++, Linux, Bluetooth, Ble, Wi-Fi, Bluez, Wpa_Supplicant, Networkmanager, Nl80211, Python, Ebpf, Arm64, Gatt, Gap, 802.11
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