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GigaBrands

Full Stack Automation Engineer

Full-TimeUpdated on 10/14/2026
No salary listed
Mid, Senior
Bachelor's
Remote in Brazil
RemoteMust be available during Eastern Time business hours.
Software EngineeringAI Application Engineering, Full-Stack Engineering

About the job

Requirements
  • Production experience deploying Claude or OpenAI in live systems.
  • Experience with retrieval-augmented generation (RAG) systems, including embeddings, retrieval, chunking, and context handling.
  • At least 3 years of experience with TypeScript and Node.js.
  • 2–3 years of experience building end-to-end production systems spanning backend services, AI pipelines, and frontend dashboards.
  • Bachelor's degree in Computer Science.
  • Strong React skills, including component architecture, state management, and performance.
  • Experience with PostgreSQL queries, migrations, indexing, and query optimization.
  • Experience integrating APIs using REST, OAuth, and webhooks.
  • Linux server experience, including SSH, log analysis, debugging, and deployments.
  • Experience with AWS Lambda, Terraform, and Docker.
  • Availability during Eastern Time business hours.
Responsibilities
  • Classify inbound messages by category, intent, urgency, and tone.
  • Generate contextual responses using enrichment data and implement and tune human approval gates.
  • Transform raw enrichment data into structured pre-call briefs, generating backgrounds, pain hypotheses, talking points, and rapport hooks.
  • Maintain and improve the vector database with embeddings, implement markdown-aware chunking strategies, and build asynchronous ingestion workers and semantic search APIs.
  • Process RSS feeds, social media, video platforms, and search trends; generate reports, forecasts, and content drafts; and run the system autonomously on scheduled jobs.
  • Extend the multi-agent content system from outline through audit and generation, maintain binary quality gates with citations, and support multiple content formats.
  • Enrich leads with product data and market insights, build AI scoring and qualification grading systems, and generate automated audit reports.
  • Build and maintain Slack-integrated operations, automate scheduling workflows, and triage and respond to email autonomously.
  • Build and improve AI pipelines for client performance insights and improve retrieval quality through re-ranking, chunking, and hybrid search.
  • Add tool use and 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; and add observability and tracing to AI pipelines.
  • Expand content quality systems to new formats and use cases.
Desired Qualifications
  • Experience with multi-agent LLM systems and orchestration.
  • Expertise with Anthropic Claude, including prompt engineering, tool use, and system prompts.
  • Experience with vector search and embeddings, such as pgvector or Pinecone.
  • Experience with Slack API and bot development.
  • Experience with advertising platform APIs, including Meta, Google, and LinkedIn.
  • Experience with LLM observability, including cost tracking, tracing, and monitoring.
  • Experience with AI-assisted development tools such as Cursor and Claude Code.

About the company

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