24 hours ago
Lisbon, PortugalSenior
Responsibilities
- Design and implement multi-agent systems using LangChain and LangSmith.
- Build production backends with Node.js and TypeScript and frontends for human-agent interaction using React or Next.js.
- Deploy and scale agent services on AWS using EC2, Lambda, and managed services.
- Monitor agent behavior, token efficiency, and latency, and implement fallback logic and state management.
- Collaborate with clients to define agent use cases, refine architectures, and iterate on deployed systems.
Requirements
- Strong Node.js and TypeScript backend development experience with full-stack capability, including React or Next.js.
- Hands-on experience deploying and managing production workloads on AWS.
- Experience building or working with multi-agent systems using LangGraph, AutoGen, CrewAI, or custom implementations.
- Daily experience using Claude, Cursor, or similar AI coding tools, plus familiarity with LangChain and LangSmith.
- Ability to move quickly from concept to production and communicate with technical and non-technical stakeholders.
- Preferred qualifications include experience with agent evaluation, self-correction loops, memory architectures, consulting or product studios, and Python for specialized AI services.
Benefits
- 25 vacation days, 2 volunteering days, and 3 additional wellness days.
- Health insurance, including possible coverage for family members, plus a Mental Health First Aider and Employee Assistance program.
- Hybrid work with an expectation of 1 day per week or 4 days per month in the office in Lisbon.
- Agile and flexible working hours, a digital nomad policy, and a permanent full-time contract.
- Career development, access to Dentsu Academy, employee discounts, referral bonuses, and team and company events.
- Software-house environment with cutting-edge technology, latest IT tools, free breakfast every second Wednesday, and recreational amenities.
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.