Backend Developer (Python/AWS)

SM

Software Mind

Work Place

remote

Work Type

full-time

Seniority

mid-level / senior

Salary

Not specified

Published at

Location

Buenos Aires, Argentina

We are Software Mind, an awesome team of engineers who are ready to ramp up any top-notch company’s projects! Our aim? To always be one step ahead. Become part of a multicultural company in constant growth with an excellent work environment certified by Great Place To Work!

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, Vue.js 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.

Your Responsibilities

• Build and maintain the BFF/Backend API layer (Python/FastAPI, ECS/Lambda).
• Implement SSO / identity provider integration and the tenant-based authentication schema (AWS Cognito).
• Build the audit logging layer, from minimal dev logging through to full document lifecycle tracking.
• Develop core API services supporting the chat Q&A interface and retrieval orchestration.
• Integrate with AWS services: API Gateway, Cognito, DynamoDB, S3, CloudWatch.
• Write unit and integration tests; support the QA Automation Engineer with testable, documented service contracts.
• Participate in code reviews and contribute to maintaining backend code quality standards alongside the Tech Lead.
• Tech Stack: Python, FastAPI, AWS Lambda, ECS, API Gateway, Cognito, DynamoDB, S3

Must-Have Skills & Experience

• 3+ years in backend software development.
• Proficient in
• Python; FastAPIor- Flaskexperience preferred.
• Experience with
• AWSserverless and container services:- Lambda, ECS, API Gateway.- Experience with
• DynamoDB / S3.
• Familiarity with SSO/OAuth 2.0/OIDC patterns; AWS Cognito or equivalent identity provider integration experience.
• Understanding of API design principles, audit logging patterns, and secure data handling.
• Comfortable working in agile/scrum teams with Jira.

Nice-to-Have

• Exposure to RAG or LLM-integrated backend systems working alongside AI pipeline components.
• Experience with multi-tenant application architecture and tenant-scoped access control patterns.
• Familiarity with structured audit logging for compliance or regulated-data use cases.

We are accepting applications from LATAM countries

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