CareerPlan

Software Development Engineer

Seattle, Washington, United StatesFull-time$144k–$224k2026-10-31 → 2026-11-10

Core

Design and deliver large-scale, low-latency distributed systems and ML infrastructure for LLM-powered conversational shopping experiences and advertising.

Role type

Senior IC Software Development Engineer (LLM/ML Infrastructure)

Builds

Conversational ad experiences, ML infrastructure, data processing pipelines for sponsored products

Domain

E-commerce, Advertising, Generative AI

Deliverable

production ML models

Required skills

Distributed systems design, Large-scale system architecture, LLM integration, LLMOps, C#/C++/Java/Perl, Object Oriented Design

Preferred skills

Full SDLC experience, Code reviews, Source control, Testing, Operations

Technologies

C#, C++, Java, Perl, LLMs, Distributed Systems

Responsibilities

Design and develop conversational ad experiences on the Search page, Build large-scale distributed systems and ML infrastructure, Partner with science team to bring LLM models into production, Develop new approaches to conversational AI, Collaborate across engineering, science, and product teams, Participate in design and code reviews

Seniority

Senior, hands-on IC