Senior Software Engineer, Full Stack – Agentic AI

Sift

Senior Software Engineer developing agentic AI for hardware engineering teams, with product ownership and customer interaction. Designing dependable systems for large-scale time-series data.

Posted 7/22/2026full-timeMarina del Rey • California • 🇺🇸 United StatesSenior💰 $170,000 - $220,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in software engineering with a focus on building reliable agentic systems and frontend web applications. Proficient in designing APIs and working with large-scale time-series data to enhance agent capabilities.

Highest-signal resume keywords

Frontend Web Application DevelopmentAPI Design and ImplementationLarge-Scale Time-Series Data ManagementSoftware Engineering ExperienceCuriosity About AI Products

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

ReactNextJSGoPythonRustRESTGRPCAPI DevelopmentSoftware EngineeringTime-Series Data Analysis

Soft Skills

CuriosityCollaborationProblem-Solving

Tools & Technologies

Sift MCP ServerAgentic Systems

Industry Keywords

Agent CapabilitiesEvaluation SuitesFrontend SurfacesLarge-Scale Systems

Tech Stack

Tools & technologies

GoGRPCNext.jsPythonReactRust

About the role

Key responsibilities & impact

talk directly to customers and partner with product to turn real review workflows into agent capabilities
design, ship, and operate agentic systems that reason over large-scale time-series data
build everything around the model that makes agents dependable
develop and maintain Sift’s MCP server
work across the whole stack
build the frontend surfaces where Sift Agents live
design and implement the APIs that power our agentic capabilities
run agents reliably at scale
build evaluation suites that measure whether agents actually help engineers

Requirements

What you’ll need

8+ years of professional software engineering experience
built frontend web applications with technologies like React, NextJS, or similar
built APIs (REST, gRPC, etc.) or backend services with technologies like Go, Python, Rust, or similar
curiosity about new AI products and opinions about them

Benefits

Comp & perks

equity
professional development opportunities