Remote: Senior AI Platform Engineer, LLM & Agent Systems

Socket.dev; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Simulations Plus is seeking a Staff Engineer for the AI/LLM Platform to design, build, and scale agentic systems that turn scientific modeling into customer-facing experiences. Work spans MCP servers, context layers, and knowledge bases, with emphasis on cost, latency, and autonomy in a remote, high-leverage team.

You will mentor engineers, shape architectural standards, and drive applied-AI work across web/SaaS and agent products, collaborating with product and tech leadership.

Qualifications

• 5+ years of professional software engineering experience with agents, LLM-integrated features, or MCP servers.
• Strong Node.js and TypeScript background; experience in service-layer design and tool integrations.
• Hands-on experience with at least one major LLM provider SDK (Anthropic, OpenAI, or comparable).

Responsibilities

• Design, build, and distribute agentic systems that surface our scientific capability to customers.
• Operate MCP servers and the context-management layer for agent interactions.
• Mentor engineers and contribute to architectural patterns and technical standards.

Skills

Node.js

TypeScript

Agent orchestration

Prompt design

Education

Bachelor's degree

Master's degree

Tools

LangGraph

Mastra

Pydantic AI

LlamaIndex

OpenAI SDK

Anthropic SDK

Job description

Simulations Plus is seeking a Staff Engineer for the AI/LLM Platform to design, build, and scale agentic systems that turn scientific modeling into customer-facing experiences. Work spans MCP servers, context layers, and knowledge bases, with emphasis on cost, latency, and autonomy in a remote, high-leverage team.

You will mentor engineers, shape architectural standards, and drive applied-AI work across web/SaaS and agent products, collaborating with product and tech leadership.