Junior Python/Next.js Full-Stack Engineer

CodeX Gate; Kuala Lumpur; On-site; MYR 56,000 - 89,000; Full time

Job summary

CodeX Gate is seeking a Junior Software Engineer to contribute from day one, primarily in Python backend and Next.js dashboards. You will build REST APIs with FastAPI, write clean async Python, and work with PostgreSQL/MySQL, while integrating external AI APIs and payment/messaging services.

Collaboration with a proactive, developing team is expected. You should have hands-on Python experience, knowledge of Next.js, and a solid backend foundation.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, AI, or related field (or equivalent practical experience).
• 1–2 years of professional or internship experience in Full Stack Development.
• Solid understanding of Python and object-oriented programming principles.
• Hands‑on experience with FastAPI.
• Comfortable writing and reasoning about async Python (asyncio, await, coroutines).
• Working knowledge of relational databases and SQL (PostgreSQL preferred).
• Familiarity with RESTful API design and HTTP fundamentals.

Responsibilities

• Build and maintain REST APIs and backend services using FastAPI (or similar Python frameworks).
• Write clean, readable, and well-documented Python code, including async Python where appropriate.
• Work with relational databases (PostgreSQL or MySQL) - write efficient queries and manage schema migrations.
• Integrate third-party APIs and services (e.g., payment gateways, messaging platforms, voice/calling services, AI APIs).
• Implement and verify webhooks, including signature/HMAC validation where required.
• Build background workers and scheduled jobs for retries, cleanup, and batched processing.
• Write unit tests and participate in code reviews to maintain code quality.
• Debug and resolve issues across backend services in development and production.
• Familiar with frontend development and design fundamentals to ship features independently.
• Contribute to improving existing codebases under guidance from senior developers.
• Follow team Git workflows, coding standards, and deployment practices.

Skills

Python

OOP

FastAPI

REST APIs

PostgreSQL

MySQL

AsyncIO

Next.js

TypeScript

Git

Linux

SQLAlchemy

Docker

Education

Bachelor's degree in CS/Software Engineering

Tools

SQLAlchemy

Docker

Job description

CodeX Gate is seeking a Junior Software Engineer to contribute from day one, primarily in Python backend and Next.js dashboards. You will build REST APIs with FastAPI, write clean async Python, and work with PostgreSQL/MySQL, while integrating external AI APIs and payment/messaging services.

Collaboration with a proactive, developing team is expected. You should have hands-on Python experience, knowledge of Next.js, and a solid backend foundation.