Note: The job is a remote job and is open to candidates in USA. Ruya AI is a venture-backed defense-tech company building AI-native intelligent software for sovereign institutions. They are seeking an AI Engineer to design and build multi-modal intelligence systems that convert complex operator requirements into secure and reliable AI capabilities.
Responsibilities
- Build asynchronous Python/TypeScript services with FastAPI, Pydantic, and asyncio
- Develop agent orchestration, subagent delegation, tool calling, and structured outputs
- Design MCP tools and AG-UI/SSE integrations
- Improve prompt, context, memory, and token-management strategies
- Build safeguards against prompt injection, data leakage, and unsafe tool use
- Create behavioral evals and regression datasets using Langfuse
- Trace model calls and tool execution with Langfuse, Sentry, and OpenTelemetry
- Diagnose failures spanning model behavior, tools, data sources, and distributed services
Skills
- Strong production Python and asynchronous programming experience
- Experience building LLM applications with tool use and multi-step reasoning
- Knowledge of structured output validation and non-deterministic system testing
- Practical understanding of prompt injection and sensitive-data risks
- Ability to evaluate AI behavior empirically rather than relying on demonstrations
- Experience with MCP, Langfuse, LiteLLM, Anthropic-compatible APIs, agent memory, CopilotKit, geospatial intelligence, or entity graphs
- Fine-tuning and pre-training of LLM models
- Post-training
- Agent and memory graph engineering
- RAG and knowledge systems
Benefits
- Employees (and their eligible dependents) can enroll in medical, dental, and vision insurance
- Commuter benefits
- Relocation assistance
- Paid time off built into the end of each year (subject to team and business needs) and based on location
- A supportive leave-of-absence program, including time off for military service and medical events
Company Overview