SiftStack
Senior Software Engineer, Frontend (Agentic AI)
$180K–$230K
San Francisco, CA · Hybrid · Senior · Full-time · Posted Oct 27, 2026
- Experience
- 8+ 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, making AI-driven analysis of hardware telemetry dependable, fast, and understandable to engineers.
What you'll do
- Partner with customers and product to turn review workflows into agent capabilities, and own features from MVP through iteration.
- Build agentic interfaces for streaming responses, long-running tasks, interruptions, and explanations of agent work.
- Render agent findings alongside large real-time telemetry datasets, optimize browser performance, and contribute to shared UI patterns and agent-session API design.
What they ask for
- 8+ 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, models, and their user experience.
Nice to have
- Shipped LLM-powered features or chat/agentic interfaces.
- Experience with web performance, technical visualization, modern CSS/component libraries, technical-user tools, or scientific computing and hardware telemetry.
Pay
$180,000 - $230,000 per year (base salary)
Tools
React, NextJS, TypeScript, Web Workers, OPFS, Redux, Tailwind, Go
AI focus
Build frontend product experiences for AI agents that investigate hardware telemetry, generate dashboards and analysis scripts, surface insights, and explain their work to engineers; this is a product engineering role, not a research role.
Model-written summary · the original posting is authoritative