Senior Data Scientist/AI Engineer

Aubay Portugal; Lisboa; Hybrid; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Training Academy

Career progression

Health insurance

Mental health platform

Team events

Family support

Language platform

Hybrid work model

Job summary

Aubay Portugal is seeking a data scientist with 5+ years of experience to design and scale autonomous and multi-agent solutions for leading clients. You will work with LangChain, LangGraph, AutoGen, and other SDKs to build robust agent architectures and ensure reliable memory, state, and communication between agents.

You will join a hybrid team in Lisbon, benefiting from our Training Academy, career progression, comprehensive health coverage, and an inclusive, collaborative culture that values

Qualifications

• Min 5 years as a Data Scientist or similar role.
• Proven experience building scalable autonomous or multi-agent architectures.
• Strong knowledge of agent harness components: memory, state, context, and communication protocols.

Skills

Data Scientist

Autonomous architectures

Multi-agent systems

Tools

LangChain

LangGraph

AutoGen

CrewAI

Claude Agent SDK

Google GenAI SDK

Job description

At Aubay Portugal, we work daily with some of the largest organisations across sectors such as banking, insurance, telecommunications and energy, helping to build and evolve critical systems that support millions of users. We have been in Portugal since 2007 and part of an international group with a presence in several European countries. More than technology, we build close relationships and deliver real-impact projects.

What are we looking for?

• 5 years or more as a Data Scientist or in similar roles;
• Proven experience building and scaling autonomous or multi-agent architectures using frameworks like LangChain, LangGraph, AutoGen, CrewAI, or native SDKs (e.g., Claude Agent SDK, Google GenAI SDK, and Google ADK);
• Solid understanding of agent harness components including memory management, state handling, context storage, and agent communication protocols (A2A, ACP, MCP servers);

What can we offer?

• Continuous growth through our Training Academy, with technical and soft skills training, mentoring, tech communities, workshops and in-person meetups;
• Close support with regular feedback and a structured career advancement model;
• Comprehensive health insurance, including dental coverage, as well as access to a mental health platform and well-being initiatives;
• Team-oriented environment, including events and initiatives to promote connection and team spirit
• Personal and family life support, from the moment your children are born and throughout their educational path;
• Access to a language platform with conversational classes in multiple languages;
• Project-tailored work model: hybrid.

What will you find here?

• A close-knit and informal environment, where direct communication is preferred and people are valued;
• Recognition of your contribution, with initiatives that celebrate important meaningful moments;
• Freedom to be yourself, without any unnecessary formalities;
• Teams where knowledge sharing, collaboration and joint growth are a reality.

Personal Data collected by AUBAY PORTUGAL as Data Controller, regarding the identification, contact and professional capabilities of the candidates, in the present procedure, will be processed for the application analysis, having in consideration that the processing is conducted in order to to take the steps, at the request of the data subject, prior to entering into a contract;

Personal data sent through the present application will be kept by Aubay during the application procedure and will remain stored whilst updated (for two years period).

The collected data might be transferred or include other processing activities, as long as the data subject is informed, in the occurrence of a standard application and selection procedure, for the compliance of legal obligations for the time required by law.

For any queries or request regarding personal data protection rights, the Data Subject may contact AUBAY PORTUGAL’s headquarters in Avenida Duque D`Ávila, nº46 em Lisboa or use the DPO’s e-mail - [e-mail]. The Data Subject also has the right to file a complaint with the National Data Protection Authority – www.cnpd.pt.

(please do not include data regarding racial or ethnical origins, political opinions, religion, philosophy, biometrical data, health data, sexual life and orientation, or relating to criminal convictions and offences.)