In-Demand Full stack tech Jobs in Sydney, Nsw

Full Stack Software Engineer - Agentic AI
NinjaTech AI —Sydney NSW
- $160,000 - $190,000 a year
- Full-time
- Computer Science
- AWS
- Bachelor's degree
- Health insurance
- Annual leave
Full-Stack Software Engineer
FinXL —Sydney NSW
- Contract
- Management
- Software development
8d
Full Stack Web Developer (Intern)
Firstclass.com.au —Sydney NSW
- Part-time
- Hybrid work
- Microsoft Excel
- Sales
- Customer service
- Opportunities for advancement
- Referral program
Web Application Developer C# .Net
The Argyle Network —Sydney NSW
- $150,000 a year
- Full-time
- Hybrid work
- Azure
- SQL
- Financial services
Software Engineer - Engine by Starling
Starling Bank —Sydney NSW
- Hybrid work
- AWS
- Annual leave
Full Stack Software Engineer
L3Harris Technologies —Bondi Junction NSW
- Computer Science
- DevOps
- Bachelor's degree
Staff Software Engineer – Full Stack (.NET)
Commonwealth Bank —Sydney NSW
- Full-time
- Systems design
- AWS
- APIs
Full Stack Web Developer
Firstclass.com.au —Sydney NSW
- Part-time
- Hybrid work
- Microsoft Excel
- Sales
- Customer service
- Opportunities for advancement
- Referral program
Full Stack Software Engineer â€” Recently Acquired & Growing Australian FinTech!
The Argyle Network —Sydney NSW
- $150,000 a year
- Full-time
- Hybrid work
- APIs
- Agile
- Communication skills
Full Stack Engineer
Accenture —Sydney NSW
- Full-time
- Azure
- Management
- DevOps
- Parental leave
Work Experience / Internship
SSW —Sydney NSW
- Remote
- Public speaking
- Office
- Internship
- Annual leave
- Work from home
Vacationer Program | T&T | Engineering, Artificial Intelligence & Data
Deloitte —Sydney NSW
- Administrative experience
- AI
- Business
- Parental leave
Senior Full Stack Engineer
Cognizant —Sydney NSW
- Full-time
- Hybrid work
- AWS
- APIs
5d
Full Stack Engineer
Macquarie Group Limited —Sydney NSW
- SQL
- APIs
- Communication skills
Full Stack Software Engineer - Share Registry Platform Provider
The Argyle Network —Sydney NSW
- $150,000 a year
- Full-time
- APIs
- Agile
- Communication skills
Full Stack Tech Lead
Torrens University Australia —Surry Hills NSW
- Full-time
- Azure
- DevOps
- AWS
11d
Full Stack Tech Lead
hipages Group —Sydney NSW
- Hybrid work
- AWS
- AI
Quick Apply
Full Stack Engineer
CRM Strategy —Sydney NSW
- CRM software
Full-Stack Engineer - Front-End Focused
The Argyle Network —Sydney NSW
- $140,000 a year
- Full-time
- AWS
- Communication skills
Staff Software Engineer, InLife, Core Banking - Unloan (Typescript, Next.js, GraphQL, Node.js)
Commonwealth Bank —Sydney NSW
- Full-time
- Azure
- Systems design
- AWS

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Full Stack Software Engineer - Agentic AI

NinjaTech AI
Sydney NSW

Apply Now

Job Details

Full-time
$160,000 - $190,000 a year

Benefits

Stock options
Health insurance
Annual leave

Qualifications

CI/CD
Computer Science
AWS
Bachelor's degree
PostgreSQL
Software development
APIs
DynamoDB
AI

Full Job Description

Join 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 2026.

You will contribute to building an agentic AI platform featuring autonomous long-running AI agents, each on dedicated computers with browser, code editor, terminal, and tool integrations. Our AI Agents handle tasks like browsing, coding, workflow automation, data analysis, reporting, building AI-native apps, competitive intelligence, and content production.

About the Role:

The 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. We get a lot done when we ideate together and iterate quickly.

The Software Engineer will design, develop, integrate and deploy various AI technologies within NinjaTech’s Agentic AI product. You will report to the VP of Engineering (ex-AWS, onsite in Sydney) and will collaborate daily with the Chief Science and Technology Officer/Co-founder (ex-AWS, Sydney) and Founder/CEO (ex-Google, HQ), as well as our strong team of Software Engineers and Applied Scientists, PM, UX, and QA.

What you will do:

As a key member of our engineering team, the Software Developer will be responsible for translating our vision and customer needs into functional and appealing interactive applications, ensuring a great user experience.

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.

Required Experience:

1+ year(s) of experience in software development, with a focus on building scalable and reliable web applications.
Generalist mindset: you're comfortable working across frontend, backend, and infra. You see every layer as an exciting opportunity to make an impact.
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: you design before you code and you care about how things are built, not just that they work
Ownership mentality: you take problems from start to finish without needing to be told what's next
Strong problem-solving skills and ability to work in a team environment.
Bachelor's degree in Computer Science or relevant field preferred.

Nice to Have:

Startup experience: you've shipped in fast-moving, ambiguous environments
End-to-end projects you've built yourself (side projects, open source, hackathons)
Experience with TypeScript, WebSockets, CI/CD pipelines, or service-oriented architectures
Interest in AI/ML and how large language models work

Benefits:

NinjaTech AI offers excellent benefits:

Annual Health insurance subsidy
Superannuation
Paid Time Off (Vacation, Sick & Holidays)
Paid meals and snacks
Stock Option Plan

Compensation Range: A$160K - A$190K

Apply Now

Refine Your Search

full stack tech jobs in sydney, nsw

Full Stack Software Engineer - Agentic AI

Full-Stack Software Engineer

Full Stack Web Developer (Intern)

Web Application Developer C# .Net

Software Engineer - Engine by Starling

Full Stack Software Engineer

Staff Software Engineer – Full Stack (.NET)

Full Stack Web Developer

Full Stack Software Engineer â€” Recently Acquired & Growing Australian FinTech!

Full Stack Engineer

Work Experience / Internship

Vacationer Program | T&T | Engineering, Artificial Intelligence & Data

Senior Full Stack Engineer

Full Stack Engineer

Full Stack Software Engineer - Share Registry Platform Provider

Full Stack Tech Lead

Full Stack Tech Lead

Full Stack Engineer

Full-Stack Engineer - Front-End Focused

Staff Software Engineer, InLife, Core Banking - Unloan (Typescript, Next.js, GraphQL, Node.js)

I want to receive the latest job alert for full stack tech in sydney, nsw

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