Full Stack Engineer (AI / Cyber)

Are you a Software Engineer who wants to move beyond experimenting with AI and start building production-grade, AI-powered security systems?

We're hiring for an Australian Financial Services organisation building the next generation of internal cyber tooling.

3 vacancies available: 1 Manager + 2 ICs

Build the agents, tools and systems that make security teams faster, more efficient and more effective. You'll have genuine ownership across the full lifecycle — from shaping what should be built and how it works, through to implementation and deployment.

Think of an AI agent taking a security alert, pulling together the relevant data, cross-referencing threat intelligence and producing a first-pass assessment - so the analyst can focus on making the decision, rather than finding the information.

Innovative solutions to security, driven by you and a world class engineering team.

What You'll Do

• Design, build and operate full-stack web applications and backend services for internal security tooling
• Integrate LLMs directly into production products
• Build agentic AI systems capable of autonomous, multi-step actions including retrieval, cross-referencing, drafting and escalation
• Build and maintain data pipelines that ingest and process security data, including logs, scan results and alerts, for both human and AI consumption
• Own solutions end-to-end: design, build, test, deploy and support in production
• Collaborate closely with security engineers and analysts to understand real workflows and pain points
• Participate in code reviews, architecture discussions and agile ceremonies within a DevOps-driven team

Must-have

• Strong backend engineering experience with Python, using Flask, FastAPI or equivalent
• Real, production experience integrating LLMs into applications or products
• Hands-on experience with agentic AI patterns and tooling, such as LangChain, LangGraph, OpenAI Agents SDK or custom tool-calling/orchestration approaches
• Experience building and owning data pipelines
• Full-stack capability, with confidence across backend services and frontend interfaces
• A track record of owning systems end-to-end, from design through to production support

Nice-to-have

• Familiarity with cyber security concepts, including vulnerabilities, threat data, SOC workflows and security tooling
• Exposure to cloud infrastructure and container orchestration, including AWS, Azure, GCP, Docker or Kubernetes

Why This Role?

• Genuine ground-floor opportunity to shape how a major financial institution builds AI-powered security tooling — this is a growing investment area
• Work on high-stakes, real-world problems where your tools directly improve how a security team operates
• Join a team that's serious about doing agentic AI properly
• Full ownership and autonomy over what you build

If this sounds like something you'd be interested in, click APPLY or reach out directly to *****@decipherbureau.com for more information.

Please note: Full Australian working rights are required for this position — Australian Citizenship or Permanent Residency.