AI / Data Engineer

Overview:

Caixa Mágica is looking for a Technical Lead, focused on the development, maintenance, and evolution of application solutions, data, Machine Learning, and GenAI.

What will you do?

• Lead technical activities related to code development, maintenance, and optimization.


• Work with Python, PySpark, Databricks, and application technologies.


• Support the evolution of solutions in Microsoft Azure, including Azure Data Factory.


• Maintain and improve data and Machine Learning pipelines.


• Support the maintenance of regression and classification models in production.


• Develop and maintain GenAI solutions, including integrations with OpenAI APIs.


• Implement and maintain RAG solutions, single-agent and multi-agent architectures.


• Develop and maintain REST APIs.


• Ensure best practices in development, testing, documentation, and code quality.


• Support deployments, environment management, and troubleshooting.

What are we looking for?

• Up to 5 years of experience in similar roles.


• Bachelor’s degree in Computer Engineering, Software Engineering, or a similar field.


• Experience with Python, PySpark, and Databricks.


• Solid experience with Microsoft Azure and Azure Data Factory.


• Knowledge of Machine Learning, GenAI, and LLM-based architectures.


• Experience with LangChain, LangGraph, RAG and, preferably, Langfuse.


• Knowledge of SQL/PostgreSQL, vector databases, and document indexing.


• Experience with REST APIs, GitHub, pytest, SonarQube, and DevOps practices.


• Good communication skills, critical thinking, and problem-solving ability.


• English required; Portuguese and Spanish are valued.


• Knowledge of Agile, JIRA, and Confluence is valued.

What can you expect from us?

• A permanent job contract for a long term project;


• Tech equipment + SIM Card + personal smartphone;


• Health and Life Insurance;


• Social events and team buildings;


• The commitment of letting you grow with us, and be rewarded accordingly;


• A dynamic and young team that will be always there to support you;


• Training in the latest technologies;


• Coffee, fruits, snacks and a warm welcoming when you pass by the office.