Full Stack Developer

ai32; Daerah Khusus Ibukota Jakarta; On-site; IDR 450,000,000 - 800,000,000; Full time

Job summary

ai32 is seeking a Full Stack Developer in Jakarta to own user experience and technical development of our product. You will design intuitive interfaces, build scalable backend services, and ensure seamless integration across the platform.

You will collaborate across UI/UX, frontend (React, TypeScript, Next.js), backend (Go, Python with FastAPI), and cloud infra (AWS, Docker) to deliver production-ready software with robust architecture, testing, and deployment processes.

Qualifications

• Strong interface and interaction design principles.
• Responsive and accessible UI development.
• Proficiency in React, TypeScript, and Next.js.
• Experience with state management and frontend performance optimization.
• Ability to implement and improve design systems (loading, empty, error states).
• Hands-on experience with Go and Python, especially FastAPI.

Responsibilities

• Frontend Development & User Experience: design intuitive, responsive interfaces that simplify business workflows.
• Full Stack Development: build and maintain modules across frontend, APIs, back-end services, and databases.
• System Architecture & Integration: define reliable service boundaries and ensure smooth communication between components.
• Testing & Deployment: manage development lifecycle, code reviews, tests, release prep, and improvements.
• Technical Documentation: maintain clear docs and record architectural decisions.

Skills

React

TypeScript

Next.js

Go

Python

FastAPI

UI/UX Design

Frontend Development

Backend Development

API Development

Concurrency & Async

AI Coding Tools

Tools

Docker

AWS

CI/CD

System Observability

Multi-tenant Architecture

Job description

As a Full Stack Developer, you will take ownership of the user experience, functionality, and technical development of our product.

You will be responsible for designing and developing intuitive interfaces, building scalable backend services, and ensuring seamless integration across the platform.

We are looking for someone who combines strong UI/UX capabilities with hands-on experience in React, Go, and Python, alongside the ability to make sound architectural decisions and deliver production-ready software.

You should be comfortable working independently, solving complex technical challenges, and taking ownership of projects from initial development through deployment and continuous improvement.

Key Responsibilities

Frontend Development & User Experience:

Design and develop intuitive, responsive, and user-friendly interfaces that simplify complex business workflows and improve the overall user experience.

Full Stack Development:

Build and maintain application modules across frontend interfaces, APIs, backend services, and databases.

System Architecture & Integration:

Develop reliable service boundaries, implement efficient workflows, and ensure seamless communication between system components.

Testing & Deployment:

Manage the development lifecycle, including implementation, code reviews, automated testing, release preparation, and post-deployment improvements.

Technical Documentation:

Maintain clear technical documentation and record architectural decisions to support collaboration and long-term maintainability.

Required Technical Skills and Experience

We are seeking candidates with strong practical experience in the following areas:

1. UI/UX Design & Frontend Development

• Strong understanding of interface and interaction design principles.
• Experience developing responsive and accessible user interfaces.
• Proficiency in React, TypeScript, and Next.js.
• Experience with state management, streaming interfaces, and frontend performance optimisation.
• Ability to implement and improve design systems, including loading, empty, and error states.
• Strong hands-on experience with Go and Python, particularly FastAPI.
• Understanding of concurrency, asynchronous operations, and API development.
• Experience building event-driven workflows and background processing systems.
• Knowledge of service architecture, retries, idempotency, and handling partial system failures.

3. Database & Infrastructure

• Experience working with PostgreSQL, query optimisation, and database migrations.
• Familiarity with AWS cloud infrastructure and Docker.
• Experience with CI/CD pipelines, system observability, and deployment processes.
• Understanding of API testing, secure authentication, and multi-tenant application architecture.

4. AI-Assisted Software Development

• Strong practical experience using Claude Code and OpenAI Codex.
• Ability to use AI coding tools for investigation, planning, implementation, and debugging.
• Experience managing AI coding agents, providing structured instructions, and coordinating isolated development tasks.
• Ability to review, validate, and explain AI-generated code before deployment.