[VCK] Senior Development Lead (AI +RAG Platform )
Buenos Aires - Argentina
Department:
Job Summary
About the Project
Software Mind is building a private tenant-isolated AI assistant for the real estate title and settlement industry. The platform is a retrieval-first (RAG) system that ingests historical email documents and structured metadata into a per-tenant vector index and serves grounded cited expert-weighted answers through a chat-style Q&A interface with single sign-on and full audit logging.
The platform is AWS-native with a Python/FastAPI backend frontend OpenSearch/Pinecone vector store and OpenAI/Anthropic/Bedrock as LLM provider. You will join a senior cross-functional LATAM-based team where hands-on AI delivery experience not just familiarity is the baseline expectation.
You are the technical delivery lead the bridge between architectural intent and day-to-day engineering execution. You own code quality technical decisions within the team and the delivery of the core AI Extraction Gateway (Simple and Complex RAG). You are hands-on: coding reviewing and unblocking across the Python backend and retrieval layers.
Your Responsibilities
Lead hands-on development of the AI Extraction Gateway progressing from Simple RAG to Complex RAG
Implement and tune the expert-weighted (SME) retrieval layer and structured result validation
Own confidence score calibration; collaborate with the BA on accuracy rubrics and test evidence
Drive technical delivery cadence: sprint planning code reviews technical risk identification and team unblocking
Ensure architectural patterns are implemented consistently across the codebase
Collaborate with the Data Engineer on ingestion pipeline integration points and vector store schema
Implement and evolve the query orchestration layer (Python/FastAPI AWS Lambda/ECS)
Support the QA Automation Engineer in designing the validation harness for RAG outputs
Maintain development observability: structured logging CloudWatch dashboards X-Ray tracing
Must-Have Skills & Experience
6 years in software development; minimum 2 years in a tech lead or senior engineering lead capacity
Strong Python development skills; FastAPI or equivalent async Python framework required
Hands-on AWS experience: ECS and/or Lambda API Gateway DynamoDB S3 CloudWatch X-Ray
Experience with vector databases OpenSearch Pinecone Weaviate or equivalent
Solid understanding of API design service decomposition and clean backend architecture
AI Experience (Required Not Optional)
Delivered at least one production RAG semantic search or LLM-integrated application end-to-end not a prototype or internal tool
Practical experience integrating with LLM provider APIs (OpenAI Anthropic or Amazon Bedrock) in a production or enterprise configuration
Working knowledge of chunking strategies embedding models retrieval ranking and prompt engineering in a production context
Experience with confidence scoring retrieval evaluation or hallucination mitigation approaches in a deployed system
Qualifications :
Nice-to-Have
Experience with LangChain LlamaIndex or similar LLM orchestration frameworks
Familiarity with OCR pipelines and document extraction tooling (AWS Textract Tesseract or equivalent)
Exposure to multi-tenant data isolation patterns and tenant-scoped encryption key management
We are accepting applications from LATAM countries
#LI-DNI
Additional Information :
Remote Work :
Yes
Employment Type :
Full-time
About Company
Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities these are a few words that describe an average day for us. Building cross-functional engineering te ... View more