Sift Stack, Inc.

Senior Software Engineer, Frontend (Agentic AI)

Sift Stack, Inc.
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4 months ago
Marina del Rey, CA, USASenior / Staff+
H1B sponsor

Base Salary

$160k - $200k/yr

Responsibilities

  • Engage with customers to understand their review workflows and translate them into agent capabilities.
  • Develop and enhance the frontend surfaces for Sift Agents.
  • Design interaction patterns for agentic UX, including streaming responses and long-running tasks.
  • Render agent findings alongside telemetry data while maintaining performance.
  • Utilize advanced browser technologies to optimize data handling.
  • Contribute to the component library for consistent UI patterns.
  • Collaborate with backend engineers on API design for agent sessions.

Requirements

  • 8+ years of professional software engineering experience.
  • Experience in building complex, high-performance web applications using React, NextJS, TypeScript, or similar technologies.
  • Strong attention to detail in user interface design and performance.
  • Curiosity about new AI products and features.
  • Willingness to take ownership of product areas and engage with customers.

Benefits

  • Equity and benefits package.
  • Flexible work arrangements with in-person collaboration twice a week.
  • Opportunity to work in a dynamic startup environment with a focus on innovation.

Tech Stack

Apache BeamApache FlinkApache KafkaAWSAzureD3.jsDockerGitHub ActionsGoGoogle Cloud PlatformInfluxDBKubernetesNext.jsReactReduxTailwind CSSTerraformTypeScript
Sift Stack, Inc.

About Sift Stack, Inc.

51-200 employees

Sift Stack builds a data infrastructure and telemetry analysis platform for hardware engineering teams in aerospace, defense, autonomy, and energy. Its software ingests, stores, and analyzes high-frequency machine data to automate anomaly detection, accelerate testing, and support operations for rockets, satellites, autonomous vehicles, and other mission-critical systems. Founded in 2022 and privately held, Sift is headquartered in El Segundo, California, and was started by former SpaceX engineers.

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