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Sinqia

Senior Developer, Python/Java – AI Focus

Sinqia

. Develop LLM-based applications and services using Python .

Posted 10/6/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in developing LLM-based applications using Python, with a strong focus on Retrieval-Augmented Generation (RAG) solutions and multi-agent architectures. Proficient in integrating AI solutions with APIs and ensuring quality and scalability in AI application development.

Highest-signal resume keywords
Python DevelopmentRetrieval-Augmented Generation (RAG)LangChainVector DatabasesMulti-Agent Architectures

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
PythonJavaReactJSLLM DevelopmentAPI DevelopmentService IntegrationGitAgile Methodologies
Tools & Technologies
LangChainLangGraphLangFusePineconeWeaviateQdrantChroma
Certifications & Qualifications
Bachelor’s Degree
Industry Keywords
AI ApplicationsKnowledge IndexingObservability PracticesMicroservices

Tech Stack

Tools & technologies
JavaPythonReact

About the role

Key responsibilities & impact
  • Develop LLM-based applications and services using Python
  • Design and implement Retrieval-Augmented Generation (RAG) solutions
  • Work with vector databases for knowledge indexing and retrieval
  • Develop agent-based architectures and multi-agent systems
  • Build pipelines and applications using LangChain and/or LangGraph
  • Implement observability practices for AI applications using tools such as LangFuse
  • Integrate AI solutions with APIs, microservices, and existing systems
  • Collaborate with multidisciplinary teams to transform business needs into AI-based solutions
  • Ensure quality, scalability, and best practices in the development of AI solutions

Requirements

What you’ll need
  • Strong experience with Python, Java, and ReactJS
  • Experience developing applications with LLMs
  • Knowledge of LangChain and/or LangGraph
  • Experience with Retrieval-Augmented Generation (RAG)
  • Experience with vector databases (e.g., Pinecone, Weaviate, Qdrant, Chroma, or similar)
  • Experience building multi-agent architectures
  • Familiarity with API development and service integrations
  • Experience with Git and Agile methodologies (Scrum/Kanban)
  • Bachelor’s degree or equivalent higher education qualification
  • Intermediate English proficiency (a plus)

Benefits

Comp & perks
  • Meal or food allowance
  • Flexible benefits (Flash)
  • Health insurance
  • Psicologia Viva
  • Dental insurance
  • Childcare assistance
  • Assistance for children with special needs
  • Fertility assistance
  • Extended maternity and paternity leave
  • Transportation allowance or home office allowance (for telework contracts)
  • Gympass (Wellhub) and TotalPass
  • Flexible working hours
  • Life insurance
  • Partnership benefits club
  • Partnership with Sesc
  • Beca (education incentive program)
  • Profit-sharing plan (PPR) or bonus, based on the achievement of goals and results