Real job — pulled straight from Q-CTRL’s careers page · Verified October 25, 2026 · No reposts.
Job description
Q-CTRL is hiring a Senior Software Engineer, Backend — a full-time, based in Sydney role. Apply directly on Q-CTRL's careers page below.
Senior Software Engineer, Back end (Opal Platform)
Team: Computing Engineering
Location: Sydney
Commitment: Full-Time / Permanent
Workplace Type: hybrid
About the role
As a Senior Back-end Software Engineer in the Opal Platform team you will be responsible for managing how users and partners can access the Q-CTRL products and how our own services interact with our platform.
You'll share ownership of the Python APIs and microservices that power Q-CTRL's quantum software products, used by customers worldwide. You'll work in an AI-native engineering team, where agentic tools handle the routine work so you can focus on design, quality and impact.
What you'll be doing:
- Designing, building, testing and documenting Python APIs (REST and GraphQL) and the microservices and client packages behind our product features
- Turning product intent into working software, using stories (AS A, WHEN, THEN) from the Product team as shared, testable specs
- Using AI coding assistants and agentic workflows daily (e.g. Copilot, Claude Code) for implementation, test generation, refactoring and documentation, while owning the quality of what ships
- Helping shape how the team uses AI: evaluating tools, writing prompts and guardrails, and sharing what works
- Reviewing pull requests with rigour and kindness, including AI-generated code
- Improving reliability, performance and security of our distributed systems
- Mentoring teammates and sharing knowledge openly
Ideally you'll have:
- 5+ years of professional software development, including 3+ years in Python
- Strong experience building web APIs (REST, GraphQL) with Django or FastAPI
- Fluent with AI tools in your development workflow, with good judgement about when to trust, verify or override them
- Experience with OIDC/OAuth2 (we use Keycloak)
- Sound testing habits (BDD, automated tests, CI/CD)
- Clear communication and the ability to communicate with different internal audiences
- Comfort moving fast with thought and empathy in a scaleup environment
- A degree in computer science or equivalent practical experience
It would be fantastic if you have these skills/experience but not essential:
- Experience building with LLMs, agents or MCP
- Microservices and distributed systems (we use Ray and RabbitMQ)
- Curiosity about quantum computing (no physics background required)
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Frequently asked questions
What skills are required for Senior Software Engineer, Backend at Q-CTRL?
The required skills for Senior Software Engineer, Backend at Q-CTRL include: Python, REST, GraphQL, Django, FastAPI, AI, OAuth, CI/CD, Microservices, RabbitMQ, LLM.
What is the seniority level for Senior Software Engineer, Backend at Q-CTRL?
Senior Software Engineer, Backend at Q-CTRL is a Senior level position.
How do I apply for Senior Software Engineer, Backend at Q-CTRL?
You can view the full description and apply for Senior Software Engineer, Backend at Q-CTRL on EchoJobs: https://echojobs.io/job/q-ctrl-senior-software-engineer-back-end-opal-platform-8tjex.