Machine Learning Engineer – Senior
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Job Description
Senior Machine Learning Engineer developing autonomous AI agents using LangChain framework. Collaborating with data scientists and software engineers for integration into broader applications.
Responsibilities:
- Agent Development: Design and implement autonomous AI agents using the LangChain framework for orchestration and flow control;
- Model Integration: Use and integrate various open-source Large Language Models (LLMs) and embedding models from the Hugging Face Hub for tasks such as text generation, sentiment analysis, and question answering;
- Workflow Optimization: Implement advanced agent-based (agentic) workflows using tools like LangGraph, enabling greater control over execution flow, human-in-the-loop interactions, and multi-agent systems;
- Collaboration: Work closely with data scientists and software engineers to smoothly integrate machine learning agents into broader applications;
- Other routine responsibilities within the area.
Requirements:
- Proven experience in machine learning, natural language processing (NLP), or AI development;
- Programming Languages: Strong proficiency in Python (required);
- Frameworks: Hands-on experience with LangChain (Python or JavaScript) and familiarity with Hugging Face libraries (e.g., transformers, datasets);
- Strong analytical and problem-solving skills, with the ability to operate in a fast-evolving AI environment;
- Required: Bachelor's degree (completed);
- Language: Advanced English for conversation (there will be an interview stage conducted in English).
Benefits:
- Medical insurance for employees and dependents with nationwide coverage (Bradesco or Unimed);
- Dental insurance with nationwide coverage;
- Meal voucher or grocery allowance (employee's choice);
- Childcare assistance;
- Life insurance for employees and dependents;
- Gympass for employees and dependents;
- EAP (Employee Assistance Program) offering Financial Assistance, Legal Assistance, Social Assistance, and Psychological Support (24/7);
- Discounts and special rates with universities (Mackenzie, SENAC, FIA, FIAP, and BBS Business School) and language schools (CNA, Cultura Inglesa, Wizard, CCAA, Indeed);
- Discounts on banking packages and preferential rates with Itaú and Bradesco;
- Payroll-deductible loan options with direct salary repayment;
- Reimbursement program for certain external certifications;
- Training: The company offers remote and in-person training and development platforms covering soft skills, technologies, and domains across more than 15,000 topics;
- Longevity awards: Recognition and rewards for employee commitment and loyalty at milestones (3, 5, 10 years and every 5 years thereafter);
- Employee referral bonus for successful new hires;
- Fit4life: A program promoting physical exercise for employees with scheduled online functional training sessions;
- International experience: Depending on skills and business needs, opportunities to apply for positions abroad (within and outside Latin America);
- And more.
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