Full Stack Software Engineer - Agentic AIJoin NinjaTech AI as a Software Development Engineer: you will learn and use the latest tech to innovate, build and scale long-running AI agents, intelligent Apps and automations (B2B and B2C), powered by SuperNinja - our advanced agentic AI platform with full OS capabilities.About the Company: NinjaTech AI is a generative AI startup with headquarters in Silicon Valley and a subsidiary in Sydney.
NinjaTech AI is backed by Alexa Fund and Samsung Ventures and we are on track to raise Series A funding in ****.About the Role: Software Engineer is a full-time position, based at our Sydney office (5 days on-site; fantastic office space, free daily meals).
Our team works in a fast-paced and collaborative environment.What you will do: Design, develop, integrate and deploy various AI technologies within NinjaTech's Agentic AI product.Report to the VP of Engineering and collaborate daily with the Chief Science and Technology Officer, Founder/CEO and team.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 current technologies to maximize development efficiency.Required Experience: 1+ year(s) of experience in software development, with a focus on building scalable and reliable web applications.
Generalist mindset: comfortable working across frontend, backend, and infra.
Professional experience in at least one of: Python, React, Node.js, or Next.js and curiosity to learn the rest.
Familiarity with cloud platforms (AWS strongly preferred) and databases (Supabase, PostgreSQL, DynamoDB, Firebase, etc.).
Systematic thinker.
Ownership mentality.
Strong problem-solving skills and ability to work in a team.
Bachelor's degree in Computer Science or relevant field preferred.Nice to Have: Startup experience.
End-to-end projects.
Experience with TypeScript, WebSockets, CI/CD pipelines, or service-oriented architectures.
Interest in AI/ML and how large language models work.Benefits: Annual Health insurance subsidy.
Superannuation.
Paid Time Off (Vacation, Sick & Holidays).
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