Fullstack Developer

Alonix Digital; Jakarta Pusat; On-site; IDR 180,000,000 - 360,000,000; Full time

Job summary

Habitus Concept, a premium architectural door hardware distributor in Jakarta, is building a lean in-house tech team to power AI systems, ERP integrations, and business automation. We seek a Full Stack Engineer to build, maintain, and scale tools behind operations — from customer-facing chatbots to internal analytics dashboards.

You will work on full-stack apps (dashboards, internal tools) with React/Next.js and Node.js, connect Supabase, Ukirama ERP, and n8n, and contribute to our AI agent

Qualifications

• 3+ years as a full stack or backend-leaning engineer.
• Strong in React/Next.js, Node.js/Express, TypeScript.
• Comfortable with SQL and relational databases (Postgres/Supabase a plus).
• Experience with API integrations (REST, webhooks) and ERP or SaaS connections.
• Bonus: AI/LLM integration, automation tools like n8n, or chatbot/voice agent development.
• Based in or willing to work from Jakarta (Central Jakarta office).

Responsibilities

• Build and maintain full-stack applications (dashboards, internal tools) using React/Next.js on the frontend and Node.js on the backend.
• Integrate and maintain connections between our systems: Supabase (database/backend), Ukirama ERP, and n8n automation workflows.
• Support development of our internal AI agent ecosystem — customer service chatbot, operations agent, onboarding/RAG-based knowledge systems, and voice-based training simulators.
• Design and query relational databases (PostgreSQL/Supabase) for reporting, KPI tracking, and business analytics.
• Collaborate directly with operations and leadership (lean team — you'll talk straight to decision makers, not layers of PM).
• Write clean, documented, maintainable code — this isn't throwaway MVP work, these systems run daily operations.

Skills

Full stack development

React/Next.js

Node.js/Express

TypeScript

SQL databases

PostgreSQL

ERP integrations

AI/LLM integration

n8n

Chatbots / voice agents

Tools

Supabase

n8n

PostgreSQL

Job description

• 3+ years experience as a full stack or backend-leaning engineer
• Strong with React/Next.js, Node.js/Express, TypeScript
• Comfortable with SQL and relational databases (Postgres/Supabase experience is a big plus)
• Familiarity with API integrations (REST, webhooks) — experience connecting to ERP systems or third-party SaaS is a plus
• Bonus points: experience with AI/LLM integration (OpenAI/Anthropic API, prompt engineering, RAG pipelines), n8n or similar automation tools, or building chatbots/voice agents
• Comfortable working in a small, fast-moving team where you own things end-to-end — not just execute tickets
• Based in or willing to work from Jakarta (Central Jakarta office)
• Nice to have (not required):
• Interest in AI product development beyond just using APIs — genuine curiosity about how AI agents can solve real business problems

Habitus Concept is a premium architectural door hardware distributor in Jakarta and we're building a lean in-house tech team to power our internal AI systems, ERP integrations, and business automation.We're looking for a Full Stack Engineer to help us build, maintain, and scale the tools running behind our operations — from customer-facing chatbots to internal analytics dashboards.What you'll work on:Build and maintain full-stack applications (dashboards, internal tools, automation interfaces) using React/Next.js on the frontend and Node.js on the backendIntegrate and maintain connections between our systems: Supabase (database/backend), Ukirama ERP, and n8n automation workflowsSupport development of our internal AI agent ecosystem — customer service chatbot, operations agent, onboarding/RAG-based knowledge systems, and voice-based training simulatorsDesign and query relational databases (PostgreSQL/Supabase) for reporting, KPI tracking, and business analyticsCollaborate directly with operations and leadership (lean team — you'll talk straight to decision makers, not layers of PM)Write clean, documented, maintainable code — this isn't throwaway MVP work, these systems run daily operations