Full-Stack AI Engineer (Backend-Leaning)

Full-Stack AI Engineer (Backend-Leaning)

Location: Jakarta, Indonesia
Work Arrangement: On-site
Employment Type: Full-time
Salary: IDR 14,000,000–20,000,000/month, depending on experience and capability

About the Company
We are building a digital employee team for North American real estate agents.

Our AI-powered digital employees operate through WhatsApp and are designed to perform real operational tasks, including tracking transaction deadlines, managing follow-ups, drafting property listings and social media content, and supporting administrative workflows.

We are looking for a Full-Stack AI Engineer with a strong backend focus to help design and develop the infrastructure powering these AI employees.

Key Responsibilities:

• Design, develop, and maintain backend systems supporting AI agent orchestration, tool execution, task queues, scheduling, memory, and state management.
• Build and maintain integrations with WhatsApp, calendars, email, MLS, and real estate transaction systems.
• Develop reliable production systems with appropriate idempotency, retry mechanisms, observability, and evaluation processes.
• Develop user-facing features and interfaces when required.
• Build and maintain LLM-based agents capable of handling real-world user interactions.
• Implement tool use, memory, state management, error handling, and other components required for reliable AI agents.
• Collaborate with the team to identify technical issues and continuously improve system reliability and performance.
• Utilize AI-assisted development tools such as Claude Code, Codex, or Cursor to improve development efficiency and output.

Requirements:

• Minimum 3 years of professional experience in production backend engineering.
• Strong proficiency in Node.js or Python.
• Experience with PostgreSQL and relational database systems.
• Experience with asynchronous programming, task queues, and backend architecture.
• Experience with cloud deployment and production systems.
• Strong working knowledge of TypeScript, React, and/or Next.js.
• Experience developing and deploying LLM/AI agents used by real users.
• Understanding of AI agent concepts including tool use, memory, state management, and error handling.
• Regular experience using Claude Code, Codex, Cursor, or similar AI-assisted development tools.
• Good written and spoken English.
• Strong problem-solving and debugging skills.

Preferred Qualifications:

• Bachelor's degree in Computer Science or a related field, preferably from a leading university.
• Previous professional experience in an AI company or AI-focused environment.
• Experience building AI-powered products or production LLM applications.
• Experience working with third-party APIs and complex system integrations.

What We Offer

• Competitive salary of IDR 14,000,000–20,000,000/month, depending on experience and technical capability.
• Opportunity to work directly on production AI systems.
• Opportunity to build AI agents that perform real-world tasks rather than simple chatbot or prompt-based applications.
• A highly technical environment focused on shipping meaningful products and measurable output.