Artificial Intelligence Full Stack & Agentic Developer

Posted 2 days ago

Worldwide

Summary

ROLE OVERVIEW We are seeking a hands-on AI Full-Stack & Agentic Developer who can rapidly turn business requirements into secure, scalable, production-grade AI applications. The ideal candidate combines strong software engineering fundamentals with modern AI-assisted / vibe coding, agentic development, cloud architecture and workflow automation. KEY RESPONSIBILITIES • Build AI-powered web applications, copilots and autonomous/agentic workflows from prototype to production. • Use AI-assisted coding tools such as OpenAI Codex, Cursor, Claude Code and GitHub Copilot for rapid development, debugging, refactoring and testing. • Develop with OpenAI Responses API, Agents SDK, tool/function calling, structured outputs, multimodal AI, RAG and realtime/voice capabilities. • Design AI agents, multi-agent workflows, tool orchestration, memory/state, human approvals, guardrails, evaluations and observability. • Build and consume MCP servers/tools to securely connect agents with enterprise applications, APIs, databases and knowledge sources. • Create advanced n8n workflows including AI agents, webhooks, API integrations, custom JavaScript/TypeScript, retries and event-driven automation. • Deploy scalable solutions on AWS using serverless, containerized and event-driven architectures. • Own APIs, databases, frontend, testing, CI/CD, security, monitoring and production troubleshooting. ESSENTIAL LANGUAGES • Python — FastAPI, Pydantic, async programming, AI/LLM SDKs and backend APIs. • TypeScript / JavaScript — Node.js, React, Next.js, n8n custom code and modern frontend/backend development. • SQL — PostgreSQL/MySQL, data modelling and query optimization. • HTML/CSS/Tailwind plus Bash/Shell, JSON and YAML. MANDATORY TECHNOLOGY STACK • OpenAI APIs • Responses API • Agents SDK • AI Agents • MCP • AWS: Lambda, API Gateway, ECS/Fargate, S3, RDS/Aurora, DynamoDB, SQS/SNS, EventBridge, IAM, CloudWatch, Bedrock • n8n • REST APIs • Webhooks • OAuth 2.0 • JWT • React • Next.js • Node.js • FastAPI • PostgreSQL • Redis • RAG • Embeddings • Vector Search • pgvector / Pinecone / Qdrant / Weaviate • Git/GitHub • Docker • CI/CD • GitHub Actions • Terraform/CDK HIGHLY DESIRABLE • Voice AI / realtime conversational systems: WebRTC, Twilio, Deepgram, ElevenLabs, Cartesia. • Salesforce / Agentforce and WhatsApp Business integrations. • LangGraph / LangChain or equivalent orchestration frameworks. • AI evaluation, tracing, model routing, latency/cost optimization and prompt-injection/tool-security controls. • SaaS, multi-tenant architecture and enterprise data security. CANDIDATE PROFILE • Builder mindset — able to independently convert a business problem into architecture, working code and production deployment. • Must understand, review and debug AI-generated code; prompt-only experience is not sufficient. • Portfolio/GitHub demonstrating deployed AI applications, agents, MCP tools, n8n workflows and AWS implementations preferred. SUCCESS IN THIS ROLE Idea → Prototype → Production, rapidly. The developer should use the latest AI coding tools for speed while maintaining production-grade architecture, security, reliability, maintainability and engineering discipline.

  • More than 30 hrs/week
    Hourly
  • 6+ months
    Duration
  • Expert
    Experience Level
  • $20.00

    -

    $60.00

    Hourly
  • Remote Job
  • Ongoing project
    Project Type
Skills and Expertise
Mandatory skills
AI Agent Development
OpenAI Codex Prompt
Activity on this job
  • Proposals:50+
  • Last viewed by client:yesterday
  • Hires:
    1
  • Interviewing:
    0
  • Invites sent:
    0
  • Unanswered invites:
    0
About the client
Member since Jun 15, 2022
  • Singapore
    Singapore1:06 AM
  • $66K total spent
    21 hires, 10 active
  • 3,039 hours
  • Tech & IT
    Large company (100-1,000 people)

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