21 days ago
Remote, SpainSenior
Responsibilities
- Design and develop LLM-based agents with tool calling, memory, and orchestration.
- Build documentation and information-retrieval pipelines using embeddings, vector databases, RAG, and response-quality evaluation.
- Design, deploy, and operate solutions on Amazon Bedrock and AgentCore using infrastructure as code.
- Develop backend APIs, integrations, authentication, user interfaces, and connections to internal systems through MCP and APIs.
- Measure and improve observability, costs, latency, and response quality for production AI systems.
- Apply security practices including OAuth/OIDC, secrets management, and per-user permissions.
- Communicate technical decisions in business terms to non-technical stakeholders.
Requirements
- Demonstrable experience taking LLMs and agents into production, beyond prototypes.
- Strong command of RAG, including chunking, embeddings, vector search, and evaluation.
- Solid AWS cloud development experience, particularly with Bedrock and AgentCore.
- Experience with Python and/or TypeScript backends and modern frontend frameworks such as React.
- Experience with serverless systems, containers, IAM, networking, and CI/CD.
- Experience using Pulumi for infrastructure as code.
- Experience with Model Context Protocol (MCP).
- Experience with LLM observability tools such as Langfuse and automated evaluation.
- Knowledge of security best practices including OAuth/OIDC, secrets management, and per-user permissions.
- Strong analytical, critical judgment, adaptability, and proactive problem-solving skills.
- Ability to understand business models and explain technical decisions to non-technical stakeholders.
- Fluent spoken and written English at B2+ level.
- Knowledge of Salesforce is a plus.
Benefits
- Permanent full-time contract.
- Flexible schedule and remote home-office work from Spain.
- Certifications plan with official certifications from main partners.
- Flexible remuneration options including public transport and meal tickets.
- Health insurance.
- Professional development opportunities.
- Company social-impact initiatives.
Tech Stack
Categories
About Dentsu
Dentsu is a global advertising and marketing services group that plans and buys media, develops creative campaigns, and builds data- and technology-led customer experiences for brands. It earns revenue from agency fees and media services across a network that includes Carat, iProspect, and Merkle. Founded in 1901 and headquartered in Tokyo, Dentsu is publicly traded in Japan and serves clients across many sectors worldwide.