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AI Full Stack Engineer

GigaBrands
Posted 6 months ago, valid for 13 days
Location

Austin, TX 78714, US

Salary

Competitive

Contract type

Full Time

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Sonic Summary

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  • The AI Full Stack Engineer position involves building and optimizing AI-powered infrastructure for an internal platform that supports Amazon brand management.
  • Candidates should have at least 3 years of experience with TypeScript and Node.js, along with production-level experience in LLMs and RAG systems.
  • Key responsibilities include developing AI communication pipelines, improving retrieval quality, and debugging classification errors in AI systems.
  • The role offers a competitive salary based on experience and emphasizes strong ownership and high-impact contributions.
  • This position provides an opportunity to scale cutting-edge AI systems to a world-class level.
AI Full Stack Engineer

We’ve built an AI-native internal platform that powers every aspect of our Amazon brand management business. AI isn’t a feature — it’s the backbone.

  • LLMs classify and respond to inbound communications
  • AI generates pre-call intelligence briefs from raw enrichment data
  • A RAG system feeds context into every generation pipeline
  • An AI checkpoint system audits all generated content against quality gates

The platform is already live and scaling fast:

  • 17+ background services
  • 130+ frontend pages
  • 214 backend services
  • 184 database tables
  • Dozens of autonomous AI pipelines

We’re hiring an engineer who operates at the intersection of AI and production systems. You’ll build, optimize, and scale AI-powered infrastructure across the full stack.

What You’ll Build & ScaleAI Communication Pipelines
  • Classify inbound messages by category, intent, urgency, and tone
  • Generate contextual responses using enrichment data
  • Implement human approval gates
AI-Powered Sales Intelligence
  • Transform raw enrichment data into structured pre-call briefs
  • Generate: background, pain hypotheses, talking points, rapport hooks
RAG System
  • Vector database with embeddings
  • Markdown-aware chunking
  • Async ingestion workers
  • Semantic search API
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
  • Multi-agent system (outline → audit → generate)
  • Binary quality gates (PASS/FAIL with citations)
  • Supports multiple content formats
Automated Lead Qualification
  • Enrich leads with product data and market insights
  • AI scoring and qualification grading
  • Automated audit reports
AI Executive Assistant
  • Slack operations
  • Scheduling workflows
  • Email triage and follow-ups
Key Responsibilities
  • Build AI pipelines for client performance insights
  • Improve RAG retrieval quality
  • Add tool use for real-time data in LLM pipelines
  • Debug classification errors in AI systems
  • Optimize LLM costs and performance
  • Build dashboards for AI metrics and usage
  • Add observability to pipelines
  • Expand content quality systems
Qualifications
    • Production LLM experience (Claude/OpenAI in real systems)
    • RAG system experience (embeddings, retrieval, chunking, context handling)
    • 3+ years TypeScript / Node.js
    • Strong React skills
    • PostgreSQL (queries, migrations, indexing)
    • API integrations (REST, OAuth, webhooks)
    • Linux server experience (SSH, logs, debugging, deployments)

Strong Pluses

  • Multi-agent LLM systems
  • Anthropic Claude expertise
  • Vector search / embeddings
  • Slack API experience
  • Ad platform APIs (Meta, Google, LinkedIn)
  • LLM observability (cost, tracing, monitoring)
  • Amazon / eCommerce experience
  • AI-assisted dev tools (Cursor, Claude Code, etc.)
  • Competitive salary based on experience
  • High-impact role with strong ownership
  • Opportunity to scale cutting-edge AI systems to world-class level



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By applying, a Sonicjobs account will be created for you. Sonicjobs's Privacy Policy and Terms & Conditions will apply.

SonicJobs' Terms & Conditions and Privacy Policy also apply.