AI Engineer: Agentic Systems for Sales Automation

lemlist; United States; Remote; USD 180,000 - 240,000; Full time

Job summary

lemlist is seeking an applied AI engineer to turn raw LLM intelligence into a reliable production product. Agent orchestration, context engineering, memory management, retrieval, and evaluation are at the center of your day-to-day work in collaboration with software engineers and product teams.

You are responsible for ensuring our system delivers the best possible outcomes for our customers. In practice, you will consistently look for the best quality/latency/cost trade-offs and own the

Qualifications

• 10+ years in software development or data science.
• Deep knowledge of LLM architecture, prompting, context engineering, and vector databases.
• Hands-on experience building agentic systems with orchestration frameworks and evaluations.
• Entrepreneurial experience is a plus.

Responsibilities

• You consistently look for the best quality/latency/cost trade-offs.
• You own our evaluation and guardrails system ensuring reliability and safety.
• You own our context engineering system.
• You consistently improve our AI product by identifying and implementing new opportunities at every level.

Skills

Entrepreneurial mindset

User-centric

Curiosity about AI

Ability to handle ambiguity

Agentic coding tools

Tools

LangGraph

Agno

Mastra

Custom orchestration

Job description

lemlist is seeking an applied AI engineer to turn raw LLM intelligence into a reliable production product. Agent orchestration, context engineering, memory management, retrieval, and evaluation are at the center of your day-to-day work in collaboration with software engineers and product teams.

You are responsible for ensuring our system delivers the best possible outcomes for our customers. In practice, you will consistently look for the best quality/latency/cost trade-offs and own the