21 hours 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.
- Deploy and operate AI solutions on AWS, including Amazon Bedrock and AgentCore, using infrastructure as code.
- Develop backend APIs, integrations, authentication, and React-based user interfaces connected to internal systems through MCP and APIs.
- Measure and improve observability, costs, latency, and response quality.
- 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 rather than only building prototypes.
- Strong Python and TypeScript development skills, with familiarity with backend and modern frontend development using React or a similar framework.
- Strong knowledge of RAG, including chunking, embeddings, vector search, and evaluation.
- Solid AWS knowledge, particularly Amazon Bedrock and AgentCore, plus experience with serverless systems, containers, IAM, networking, and CI/CD.
- Experience with Pulumi for infrastructure as code.
- Experience with Model Context Protocol and LLM observability using Langfuse or a similar tool, as well as automated evaluation.
- Knowledge of security best practices, including OAuth/OIDC, secrets management, and per-user permissions.
- Strong analytical and critical judgment skills, including the ability to validate AI outputs and adapt quickly to emerging tools.
- Ability to understand business models, explain technical decisions, and communicate fluently in written and spoken English at approximately B2+ level.
- Knowledge of Salesforce is a plus.
Benefits
- Permanent, full-time contract.
- Remote work from Spain with a flexible schedule and home-office support.
- Certifications plan and professional development opportunities.
- Flexible-retribution options such as public transport tickets and restaurant tickets.
- Health insurance.
- Work-life balance support and involvement in 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.