BLE Connectivity Engineer

Overview Expleo is a global engineering, technology, and consulting service provider that partners with leading organizations to guide them through their business transformation, helping them achieve operational excellence and future-proof their businesses. Expleo benefits from more than 50 years of experience developing complex products in automotive and aerospace, optimizing manufacturing processes, and ensuring the quality of information systems. Leveraging its deep sector knowledge and wide-ranging expertise in fields including AI engineering, digitalization, automation, cybersecurity and data science, the group’s mission is to fast-track innovation through each step of the value chain. With a worldwide presence in 30 countries, our global footprint includes excellence centers around the world, including Romania since 1994. #LI-CI1 Responsibilities Analyze and troubleshoot Bluetooth Low Energy (BLE) connectivity issues between smartphones and vehicle ECUs. Debug BLE connection establishment and session management sequences. Investigate radio interference, collisions, and connection instability problems. Perform root cause analysis of BLE stack behavior across different smartphone platforms:- iOS (CoreBluetooth)- Android (Google Pixel BLE stack)- Samsung devices (custom BLE implementation) Analyze HCI logs, BLE sniffer traces, and application logs. Support CCC Digital Key integration and validation activities. Collaborate with UWB teams to ensure seamless BLE-UWB interoperability. Optimize BLE communication latency, performance, and robustness. Support vehicle validation, system testing, and qualification activities. Provide technical analysis and recommendations for BLE-related issues. Qualifications Strong knowledge of Bluetooth Low Energy (BLE) protocol and architecture Good understanding of BLE connection procedures and communication flows. Experience debugging BLE communication between smartphones and embedded systems. Knowledge of smartphone BLE implementations: iPhone BLE, Samsung BLE, Google Pixel BLE Experience with: BLE sniffer traces, HCI logs, Application logs Understanding of BLE parameters: Connection Interval, Supervision Timeout, PHY configuration, Advertising Configuration and Strategies, Power-Saving Modes Knowledge of CCC Digital Key architecture and BLE integration principles. What do I need before I apply This position implies international relocation for 12 months (France).#LI-AT1 CIM or B2B collaboration (SRL only)