SiftStack
Software Engineer, Frontend (Agentic AI)
$160K–$200K
Marina Del Rey, CA · Hybrid · Full-time · Posted Oct 27, 2026
- Experience
- 3+ years of professional software engineering experience.
- Visa sponsorship
- Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee, in compliance with ITAR/EAR regulations.
About the job
Build and own frontend experiences for Sift Agents, helping hardware engineers investigate telemetry with dependable, high-performance AI agent interfaces.
What you'll do
- Partner with customers and product to turn review workflows into agent capabilities, then build and iterate on the frontend.
- Design agentic interactions, including streaming responses, long-running tasks, interruptions, and explanations of agent work.
- Render agent findings alongside large telemetry datasets and improve browser performance; collaborate on agent-session APIs and shared UI components.
What they ask for
- 3+ years of professional software engineering experience.
- Experience building complex, high-performance web applications with React, NextJS, TypeScript, or similar.
- Interest in owning a product area, including customer conversations, product decisions, and shipping.
- Curiosity about AI products, agents, and models.
Nice to have
- Shipped LLM-powered features or chat/agent interfaces.
- Experience with web performance, visualization tools, WebAssembly, modern CSS, or component libraries.
Pay
$160,000 - $200,000 per year (base salary)
Tools
React, NextJS, TypeScript, Web Workers, OPFS, Tailwind, Radix UI, WebGL
AI focus
Build frontend experiences for AI agents that investigate anomalies, review hardware test and flight data, generate dashboards and analysis scripts, and surface telemetry insights; focus on reliable agentic UX rather than AI research.
Model-written summary · the original posting is authoritative