Senior Mobile Engineer (Flutter)

Company: Elite Recruiting Co
Location: San Francisco
Posted on: February 13, 2026

Job Description:

Job Description Job Description Senior Flutter/Mobile Engineer – Real-Time Motion Intelligence, Agentic AI, AR Stabilization & On-Device Privacy Location: Remote / Hybrid / On-Site (Silicon Valley) Our client is enabling every human to earn from anywhere by leveraging their real-world presence through their smartphone. The app with intelligent in-app execution engine that makes this possible—turning remote actions into precise, safe, real-time physical execution. Role Overview We are hiring a Senior Mobile Engineer with deep expertise in Flutter, real-time sensor fusion, AR-style 3D object stabilization, privacy-preserving computer vision, and agentic offline execution. This role sits at the heart of our real-time execution engine for millions of remote helpers. ? Key Responsibilities Real-Time Command Interpretation: Build ultra-low-latency pipelines to receive consumer commands. Generate synchronized directional animations and voice cues. Implement deterministic state machines for safety-critical execution. Sensor Fusion & Intelligent Motion Guidance Use accelerometer, gyro, and magnetometer data to detect: Speed, Direction & rotation angle, Jerks, drift, or shaky motion, Incorrect movement (too slow, too fast, wrong angle) Trigger auto-corrections via: Visual cues, Professional voice instructions, Temporary blurring as a warning, Maintain Agentic AI for Offline Task Execution: Build lightweight on-device agentic systems capable of understanding intent sequences (“move 3m then stop”), Continuing execution when offline, predicting incorrect motion, and auto-correcting without requiring new consumer input Real-Time Object Detection & Privacy Masking: Develop edge AI systems that : Detect faces, number plates, and sensitive objects. Apply blur before streaming, ensuring true privacy at source. Run efficiently across mid-range devices. AR-Style Object Stabilization & Persistent Blurring (Pokémon GO–like) A major requirement: Once a face/plate is blurred, the blur must stay locked to that object in 3D space even as: The camera moves Angles shift Lighting changes Use techniques including: Optical flow tracking Feature-point detection ARKit/ARCore anchoring concepts Multi-frame object persistence Blur should not flicker or jump. Provider ? Consumer Feedback Loop, Send structured telemetry for motion deviation and error states. Drive consumer-side safety screens (“billing paused due to difficulty”). Integrate deeply with backend telemetry and billing. Cross-Platform Architecture, Build the entire experience in Flutter, with advanced native integrations for: Motion sensors CV blurring GPU acceleration AR stabilization primitives Required Skills & Experience Mandatory Technical Requirements 5 years of hands-on Flutter experience (required) 5–12 years total mobile engineering experience Strong, demonstrable experience in: IMU sensor fusion (Kalman filters, quaternions, complementary filters) Real-time computer vision (TFLite, MediaPipe, CoreML, ONNX) On-device blurring, masking, data redaction AR tracking, optical flow, feature locking Deterministic state machine design High-performance animation real-time audio sync Flutter native platform channels (Swift/Kotlin) Strong

Keywords: Elite Recruiting Co, Walnut Creek , Senior Mobile Engineer (Flutter), Engineering , San Francisco, California