AI Full Stack Engineer

Karo-solutions Sweden

AI Full Stack Engineer developing AI communication pipelines and sales intelligence for a fast-growing marketing agency. Focused on optimizing and scaling AI-powered infrastructure across the full stack.

Posted 4/30/2026full-timeRemote • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

JavaScriptLinuxNode.jsPostgresReactTypeScript

About the role

Key responsibilities & impact

Classify inbound messages by category, intent, urgency, and tone
Generate contextual responses using enrichment data
Implement human approval gates
Transform raw enrichment data into structured pre-call briefs
Generate: background, pain hypotheses, talking points, rapport hooks
Vector database with embeddings
Markdown-aware chunking
Async ingestion workers
Semantic search API
Process RSS feeds, social media, video platforms, and search trends
Generate reports, forecasts, and content drafts
Run autonomously on scheduled jobs
Multi-agent system (outline → audit → generate)
Binary quality gates (PASS/FAIL with citations)
Supports multiple content formats
Enrich leads with product data and market insights
AI scoring and qualification grading
Automated audit reports
Slack operations
Scheduling workflows
Email triage and follow-ups

Requirements

What you’ll need

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.)

Benefits

Comp & perks

Competitive salary based on experience
High-impact role with strong ownership
Opportunity to scale cutting-edge AI systems to world-class level

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

TypeScriptNode.jsReactPostgreSQLAPI integrationsLinux serverMulti-agent LLM systemsVector searchAI pipelinesRAG system

Soft Skills

debuggingoptimizationreport generationworkflow schedulingautonomous operationcontent quality improvementobservability