Full Stack Software Engineer - Agentic AI

NinjaTech AISydneyOn-siteFull-time3 Sept 2026

Join NinjaTech AI as a Full Stack Software Engineer to build and scale long-running AI agents and intelligent applications powered by the SuperNinja agentic AI platform. This full-time role is based in Sydney and requires 1+ years of software development experience with skills in Python, React, Node.js, or Next.js. You will collaborate with a strong engineering team and report to the VP of Engineering.

What you'll do

Build features (end-to-end) for our web app (super.myninja.ai)
Bring expertise in performance and optimization to improve our applications for smooth and fast user experience.
Develop and maintain documentation for the platform, including API documentation.
Write clean, efficient, and well-documented code in React, Next.js, Python and ensure code quality through automated testing and continuous integration and deployment.
Participate in code reviews and provide constructive feedback to other members of the team.
Troubleshoot and debug issues that arise in the platform, and implement solutions to prevent recurrence.
Collaborate with product management to define and prioritize product requirements, ensuring technical feasibility and alignment with company goals and user requests.
Leverage RESTful APIs and web sockets for fast communication with our backend systems.
Unit-test code for robustness, including edge cases, usability, and general reliability.
Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

What you need

Must-have

PythonReactNode.jsNext.jsAWSSupabasePostgreSQLDynamoDB

Nice-to-have

TypeScriptWebSocketsCI/CDService-Oriented ArchitecturesAI/MLLarge Language Models

Soft skills

Problem-solvingTeamworkOwnershipSystematic thinkingGeneralist mindsetCuriosity

Full StackSoftware EngineerAgentic AIAIStartupSydneyPythonReactNext.jsAWS

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Nice-to-have

Soft skills

What you'll do

What you need