Senior AI Engineer, Agents

🔥 1 hour ago

🌐 Greece, Spain, +3 more countries – Remote

🇬🇷 Greece – Remote 🇪🇸 Spain – Remote 🇵🇹 Portugal – Remote 🇺🇦 Ukraine – Remote 🇮🇳 India – Remote

⏰ Full Time

🟠 Senior

🤖 AI Engineer

👻 Ghost score 17%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Nacre Capital

WebsiteLinkedInAll Job Openings

11 - 50 employees

🏥 Healthcare

💼 Consulting

📦 Logistics

Healthcare • Consulting • Logistics

Nacre Capital is a global venture builder that creates, builds, and grows start-ups focused on deep technologies that have a significant societal impact. The company identifies fundamental needs and develops innovative solutions in various sectors, including healthcare, biotechnology, agriculture, and aquaculture. They provide comprehensive support to start-ups, including financial, legal, and recruitment services, and actively help scale their ventures globally. Nacre Capital notably works with companies like FDNA, which assists in identifying rare diseases, and Seed-X, which advances AI-based solutions for seed and grain supply chains.

📋 Description

• Invent and maintain the agent roadmap by identifying repetitive expert work with sales, data, and product teams • Rank potential agents by feasibility, cost, and impact • Design agent architectures and write production code for tools, loops, sub-agents, memory, state, and evaluation • Build a reusable platform layer over EveryWatch data, including pricing, auctions, listings, references, and portfolios • Develop an MCP surface over the existing backend • Create shared memory, tracing, and reusable evaluation infrastructure • Improve WatchChat's multi-turn state, memory, latency, cost, tool-call reliability, and regression gates • Build golden multi-turn datasets, programmatic tool/argument verifiers, and LLM-as-judge evaluation on held-out sets • Optimize model selection, context budgets, caching, and fine-tuning to manage cost and latency • Collaborate with engineering, product, sales, and data teams to identify and deliver AI capabilities for collectors, dealers, sales teams, data operations, and engineering

🎯 Requirements

• 6+ years shipping production software, including 2+ years on LLM systems used by real users • Experience with ReAct or equivalent loops, tool/function calling, planners, state and checkpointing, long-term memory, HITL steps, and streaming • Hands-on LangGraph or a strong argument for an alternative • Experience with tracing/observability stacks such as LangSmith or Langfuse • Production Python experience, including FastAPI, asynchronous job processing, and clean service boundaries • Proper RAG experience: retrieval, re-ranking, relevance judgment, and evaluation • Experience with RAGAS, DeepEval, GEVAL, LLM-as-judge, or pass@k evaluation • Cloud production experience with AWS (Bedrock, SQS, EC2/EKS, S3) or equivalent • Docker and CI/CD experience • Strong architectural judgment and willingness to challenge existing technical decisions • Experience with LLM post-training using SFT, LoRA/QLoRA, preference/RL methods, reward design, or verifier design is nice to have • Experience with voice agents, vision-language work, multi-agent orchestration, MCP integrations, text-to-SQL, report/document generation agents, guardrails, PII handling, hallucination detection, or risk scoring is nice to have • Interest in watches, collectibles, or market data is nice to have, not required

🏖️ Benefits

• Ownership of EverWatch's entire agent layer, and the roadmap for it • A dataset that doesn't exist anywhere else • Direct line to the CTO; decisions in days, not quarters • Budget for models, tooling, and the coding agents you want to work with • Competitive compensation • Remote-first work arrangement