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 <50ms latency.
• 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