About the Role:

We are seeking a forward-thinking Agentic AI Engineer to design, build, and orchestrate autonomous AI agents capable of reasoning, planning, and executing complex workflows. Unlike traditional LLM-based chatbots, our agents interact with dynamic environments, use tools, collaborate with other agents, and operate with minimal human intervention.

Key Responsibilities:

Agent Architecture & Development:

- Design and implement autonomous agent systems using frameworks using Hermes Agent.
- Build multi-agent collaboration patterns (e.g., orchestrator-workers, debate, hierarchical swarms).
- Implement agentic memory systems (short-term, long-term, and episodic memory) using vector databases and semantic caching.

Reasoning & Planning:

- Integrate advanced reasoning techniques: ReAct, Chain-of-Thought (CoT), Tree-of-Thoughts (ToT), and Plan-and-Solve.
- Develop agents capable of dynamic planning, error recovery, and replanning based on environmental feedback.
- Implement tool use (function calling) and API grounding for actions like database queries, API calls, RAG retrieval, and UI automation.

Production & Evaluation:

- Build robust evaluation frameworks (agentic eval) to test for task completion, efficiency, and safety—not just lexical similarity.
- Instrument agents with tracing, observability, and logging (e.g., LangSmith, Arize, Weights & Biases).
- Optimize for latency, cost (token usage), and reliability in production.

Integration & Tooling:

- Connect agents to internal and external systems: CRMs, databases, Slack, browsers, REST APIs, and code interpreters.
- Develop custom tools and sandboxed environments for agents to execute code or shell commands safely.

Required Qualifications:





Technical Skills:

- Programming: Expert in Python
- Strong understanding of prompt engineering, few-shot learning, and structured output generation (JSON mode, grammars).
- Reasoning Patterns: Proven experience implementing agentic patterns (ReAct, Reflexion, Toolformer) in production or complex prototypes.
- Memory & Retrieval: Experience with vector databases (Pinecone, Weaviate, Qdrant) and RAG optimization (hybrid search, reranking).
- Orchestration: Familiarity with workflow engines (Temporal, Prefect, Airflow) for human-in-the-loop and durable execution.
- Observability: Experience monitoring LLM applications (prompt traces, token usage, drift).
- Model Context Protocol: Built agents that use MCP for multi-step research, code analysis, or data engineering tasks.
- Agentic Framework : Practical experience with Hermes Agent

Education & Experience:

- Bachelor’s degree in Computer Science, Software Engineering, AI, or related discipline
- 3 years in software engineering / ML engineering.
- Experience building production-grade agentic systems (not just demos or chatbots).
- Strong understanding of LLM limitations: hallucinations, jailbreaks, prompt injection, and failure modes.
- Good understanding of MCP discovery patterns and context negotiation.
- Strong knowledge of context management in LLM applications: prompt caching, sliding window, semantic retrieval, MCP resource lifecycle.

Job Type: Full-time

Pay: 1.00€ - 2.00€ per year

Application Question(s):

- The role requires a production experience with MCP and sufficient experience using Hermes Agent framework.

Briefly describe your practical experience on both.

Work Location: Remote

📌 Applied AI Engineer (España)
🏢 PST.AG
📍 España