Senior AI/LLM Platform Engineer - Remote & Impactful

Simulations Plus; Northern (KY); Hybrid; USD 100,000 - 120,000; Full time

Benefits offered by this job

Fully remote work

Flexible schedules

Generous vacation policy

Health coverage

Annual bonus

Job summary

Simulations Plus is seeking a Staff Engineer, AI/LLM Platform, to lead the AI-facing engineering efforts across web/SaaS and agent products. You will help design, build, and distribute agentic systems, context management, and knowledge layers that translate our scientific modeling capabilities into customer-facing agent experiences.

The role emphasizes hands-on engineering over research, with a lean, high-leverage team, remote location, and clear opportunities to impact architecture, tooling,

Qualifications

• 5+ years of professional software engineering experience, with recent production work on agents, LLM-integrated features, or MCP and tool servers.
• Strong Node.js and TypeScript background; comfort designing service-layer code and tool integrations.
• Working knowledge of agent orchestration, prompt and tool design, and context-management patterns (RAG, vector search, memory).
• Hands-on experience with at least one major LLM provider SDK (Anthropic, OpenAI, or comparable).
• Pragmatic, applied mindset — this is an engineering role, not a research or data-science role.

Responsibilities

• Agent Systems and Product Surfaces: design, build, and distribute agentic systems; balance autonomy, cost, and latency; decide prompts/tools across providers.
• Context, Knowledge and MCP Layer: operate MCP servers; maintain context-management; stand up vector stores and knowledge bases.
• Quality & Team Impact: build evals, traces, and feedback loops; contribute to architectural patterns; mentor engineers.
• Other Duties as Assigned

Skills

5+ years software engineering

Node.js

TypeScript

Agent systems

Prompt design

Education

Bachelor's degree in CS/Engineering

Master's degree (plus)

Tools

Anthropic SDK

OpenAI SDK

Job description

Simulations Plus is seeking a Staff Engineer, AI/LLM Platform, to lead the AI-facing engineering efforts across web/SaaS and agent products. You will help design, build, and distribute agentic systems, context management, and knowledge layers that translate our scientific modeling capabilities into customer-facing agent experiences.

The role emphasizes hands-on engineering over research, with a lean, high-leverage team, remote location, and clear opportunities to impact architecture, tooling,