Full Stack Automation Engineer
- Level
- Mid
- Work type
- Remote · Brazil only
Not stated in the posting: salary, visa.
Open. First seen 6 October 2026.
About the role
We're hiring a Full Stack Automation Engineer who operates at the intersection of AI and production systems. You'll build, optimize, and scale AI-powered infrastructure across the full stack — from LLM pipelines and RAG systems to dashboards and background workers. This is a high-ownership role. You won't be handed tickets. You'll be handed problems and trusted to solve them.
WHAT YOU'LL BUILD & SCALE
AI Communication Pipelines
- Classify inbound messages by category, intent, urgency, and tone
- Generate contextual responses using enrichment data
- Implement and tune human approval gates
AI-Powered Sales Intelligence
- Transform raw enrichment data into structured pre-call briefs
- Generate backgrounds, pain hypotheses, talking points, and rapport hooks
RAG System
- Maintain and improve the vector database with embeddings
- Implement markdown-aware chunking strategies
- Build async ingestion workers and semantic search APIs
Trend Intelligence Engine
- Process RSS feeds, social media, video platforms, and search trends
- Generate reports, forecasts, and content drafts
- Run autonomously on scheduled jobs
Content Quality Pipeline
- Extend the multi-agent system (outline → audit → generate)
- Maintain binary quality gates (PASS/FAIL with citations)
- Support multiple content formats across the pipeline
Automated Lead Qualification
- Enrich leads with product data and market insights
- Build AI scoring and qualification grading systems
- Generate automated audit reports
AI Executive Assistant
- Build and maintain Slack-integrated operations
- Automate scheduling workflows
- Triage and respond to email autonomously
- Build and improve AI pipelines for client performance insights
- Improve RAG retrieval quality (re-ranking, chunking, hybrid search)
- Add tool use / function calling for real-time data in LLM pipelines
- Debug classification errors and improve model accuracy
- Optimize LLM costs, latency, and performance
- Build dashboards for AI metrics and usage monitoring
- Add observability and tracing to AI pipelines
- Expand content quality systems to new formats and use cases
Requirements
Required:
- Production LLM experience — Claude or OpenAI deployed in real, live systems
- RAG system experience — embeddings, retrieval, chunking, and context handling
- 3+ years TypeScript / Node.js
- 2-3 years building end-to-end production systems spanning backend services, AI pipelines, and frontend dashboards
- Bachelor's degree in Computer Science
- Strong React skills (component architecture, state management, performance)
- PostgreSQL — queries, migrations, indexing, query optimisation
- API integrations — REST, OAuth, webhooks
- Linux server experience — SSH, log analysis, debugging, deployments
- AWS Lambda, Terraform, and Docker experience
- Available during Eastern Time business hours
Strong Pluses:
- Multi-agent LLM systems and orchestration
- Anthropic Claude expertise (prompt engineering, tool use, system prompts)
- Vector search and embeddings (pgvector, Pinecone, or similar)
- Slack API and bot development
- Ad platform APIs (Meta, Google, LinkedIn)
- LLM observability — cost tracking, tracing, monitoring
- AI-assisted dev tools (Cursor, Claude Code, etc.)
Benefits
WHAT WE OFFER
- High-impact role with genuine ownership over systems that matter
- Full time remote role
- Work directly on one of the most advanced AI-native business platforms in the Amazon space
- A team that moves fast, thinks big, and holds a high bar
- PTO after successfully completed probationary period
The team: Information Technology
This role is one of 3 open in Information Technology.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
JavaScript (3 of 3), Linux (3 of 3), LLM (3 of 3), Node.js (3 of 3), OAuth (3 of 3), PostgreSQL (3 of 3), RAG (3 of 3)
OTHER ROLES ON THIS TEAM
- Junior Full Stack Automation Engineer posted Aug 17
- Automation AI Engineer posted Mar 24
From the team and dates on GigaBrands's own job board.
Other openings for this role
2 open postings for this role in Brazil, first posted 6 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 6 October 2026 – open (this posting)
- 6 October 2026 – open
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