Senior/Principal RAN Digital Twin & AI Simulation Engineer

📋 Description

• Own the architecture and roadmap for a modular multi-RAT RAN digital twin (LTE/5G NR/2G).
• Integrate MAC/scheduler into deterministic per-TTI closed-loop simulations with stable interfaces.
• Model interactions among scheduler, PHY, channels, UE, traffic, interference, and power control.
• Extend LTE simulation with reusable abstractions for 5G NR and 2G stacks.
• Design a fidelity ladder with high-fidelity PHY and fast surrogate models.
• Develop AI/ML RAN capabilities including neural channel estimation and learned scheduling.

🎯 Requirements

• BSc or MSc in Electrical/Computer Engineering, CS; PhD advantageous.
• Typically 7+ years in wireless systems, RAN dev, modem/PHY, or simulation.
• Strong C/C++ and Python; integrate production code with simulation tooling.
• Experience building/validating link-level and system-level simulations; lab validation.
• Knowledge of 3GPP LTE/NR specs; test scenario development.
• Experience with Linux, Git, CI/CD, and containers.
• Ability to lead architecture decisions and communicate across teams.

🎁 Benefits

• MATLAB toolboxes experience for communications.
• Production eNodeB/gNodeB software or Open RAN experience.
• Experience with PyTorch/TensorFlow for ML in communications.
• GPU acceleration, CUDA, distributed simulation, cloud/HPC.
• SDR, lab automation, field-log analysis.
• Self-service experiment platforms.