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Senior Software Engineer- User Behavior

San Mateo, CA💼 Full-time💰 $196,750–$196,750🗓 2026-09-10 → 2026-09-26

Core

Design and operate low-latency backend systems for a personalized, adaptive user safety and risk management platform.

Role type

Senior backend software engineer (safety infrastructure)

Builds

A centralized behavioral data layer, rules-and-inference engine, and intervention-delivery framework for real-time safety decisions.

Domain

Trust & Safety / Adversarial Systems / Distributed Backend

Deliverable

production ML models | product features | infrastructure

Required skills

Go, distributed systems design, rules engine development, streaming/batch data pipelines, production operations, system migration

Preferred skills

Trust & Safety domain experience, feature stores, ML-serving infrastructure, server-driven UI frameworks

Technologies

Go, gRPC, LLMs

Responsibilities

Design and operate the per-user behavioral data layer for real-time safety decisions; Build and evolve the centralized decision engine combining rules and ML signals; Build the unified backend framework for safety interventions; Consolidate abuse reporting channels with ML classification and agentic workflows; Design serving infrastructure for explainability and auditability; Own end-to-end delivery from design to production operation.

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