Software Engineer

At Decidr, we’re reimagining the way work works. This isn’t just another AI tool, Decidr is the future of business intelligence. Our AI-powered operating system brings every task, workflow, and decision together in one intelligent layer, helping businesses move faster, smarter, and with more confidence.


As a Full Stack Software Engineer at Decidr, you’ll help design, build, and optimise the intelligent systems that power Decidr's products. You’ll work end-to-end across our tech stack, combining Ruby on Rails and Elixir on the backend with React on the frontend, to deliver powerful and intuitive experiences that scale.

This role is perfect for engineers who thrive on ownership, think in systems, and want to turn abstract ideas into production-grade tools, fast.

What You'll Do:

Build full stack features across our AI platform using Ruby on Rails, Elixir, and React
Develop and maintain APIs, background jobs, and web interfaces that support decision-making workflows
Champion test-driven development with tools like RSpec to maintain performance and reliability
Collaborate with cross-functional teams to scope, design, and deliver end-to-end features
Contribute to architectural decisions that ensure code quality, scalability, and resilience
Continuously improve developer experience, tooling, and release velocity
What we're looking for:

3–5 years experience as a full stack engineer in product-led environments
Deep familiarity with Ruby on Rails; some exposure to Elixir or willingness to learn
Confident building modern UI with React and contributing to backend systems
Strong grasp of test-driven development (RSpec), version control, and clean code principles
Comfortable working in fast-moving, ambiguous, startup-style environments
Clear communicator who works well across functions and cares about outcomes
Why Join Decidr?

We’re not just building software, we’re building the infrastructure for smarter decisions. At Decidr, engineers are product shapers, not just executors.

Here’s what sets us apart:

Sydney HQ, in-office collaboration
High-impact role in a fast-growing AI startup
Work with sharp, low-ego teammates who move fast and follow through
Build systems that improve speed, transparency, and business outcomes
Apply Now – Be the engineering force behind smarter decisions.

Don’t meet every requirement? That’s okay. We value curiosity, clarity, and impact more than perfect resumes.