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VTRAC Consulting Corporation

Intelligent Solutions

Thank you for applying to VTRAC opportunities. Please e-mail your resume as an MS-WORD document in confidence Subject: Sr. Machine Learning Engineer (Python, LangChain, Postgres) - BRAZIL CONTRACT, Attention: mask@vtrac.com or call: (647) 254-0770

Position #: 251175

Position: Sr. Machine Learning Engineer (Python, LangChain, Postgres) - CONTRACT

Position Type: Contract

No. of Positions: 1

Location: Remote (Brazil) Eastern Standard Time

(Must be able to start in 10 days)

Description:

This is an exciting opportunity for a highly experienced Machine Learning Engineer to enhance a cutting-edge AI product using RAG and LLM technologies. You will focus on production-grade system design, integrating new use cases, optimizing ML infrastructure, and leading the delivery of at least one new use case within our NLQ product. The role involves collaborating with a cross-functional team of engineers and product owners. This is a remote contract opportunity with strong potential for long-term extension.

Key Responsibilities:

• Lead the system design and implementation of ML solutions focused on RAG pipelines, LLMs, and production-grade infrastructure.
• Develop and iterate on the existing ML pipeline, including containerized services deployed via Docker and Kubernetes.
• Design and integrate new use cases for the NLQ product by working with data pipelines and enhancing prompt engineering.
• Collaborate with cross-functional teams to support AI capabilities embedded in real-world applications.
• Drive infrastructure improvements and build new ML components from scratch where necessary.
• Influence architecture decisions, enforce MLOps standards, and promote ethical and compliant AI practices.
• Deliver measurable impact by leading the launch of at least one new use case within the first two months.

Qualifications:

• 10+ years of experience in Machine Learning Engineering, with a strong emphasis on production-grade systems.
• 10 years of experience in Python and LangChain (must-have).
• Strong experience with vector-based search techniques and RAG architectures.
• Proficiency in Postgres and familiarity with data modeling for real-time ML applications.
• Experience with AWS services and containerized deployments (Docker, Kubernetes).
• Familiarity with tools such as Hugging Face, AWS SageMaker, dbt, and Snowflake (nice-to-have).
• Exposure to CRMs or ERMs is a plus.
• Ability to work on infrastructure as well as model-driven workflows.
• Excellent communication, collaboration, and problem-solving skills.
• Degree in Computer Science, AI, or a related field.

We thank all candidates in advance. Only selected candidates for interviews will be contacted. For other exciting opportunities, please visit us at . VTRAC is an equal-opportunity employer.

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