You'll join a large enterprise where you'll work alongside architecture, engineering and delivery teams to ensure security is embedded into technology initiatives from day one. Whether it's cloud platforms, digital products or emerging technologies, you'll provide practical guidance that enables the business to move quickly without compromising security.

This role is about influencing outcomes rather than policing them. You'll review solution designs, define security architectures, identify risks early and work closely with technical stakeholders to deliver secure, scalable solutions. You'll also help evolve the organisation's security capability and contribute to the adoption of modern technologies, including AI-enabled services.

You'll have experience as a Security Architect within a large, complex environment and be comfortable working across multiple projects and stakeholders. You'll have a solid understanding of cloud security, modern application architectures and secure design principles, with the ability to communicate technical concepts to both technical and non-technical audiences.

Experience with cloud platforms, container technologies, APIs, automation, DevSecOps and security architecture frameworks will be highly regarded, along with a genuine interest in emerging technologies and the evolving security landscape.

Russell@theonset.com.au  / 0438984265

Senior Java Engineer – AI & Automation Platforms (Contract)

Overview

We’re partnering with a leading financial services organisation currently investing heavily across backend engineering, AI integration, and automation capability.

As part of a broader uplift across enterprise platforms and intelligent workflow systems, they’re looking to engage several Senior Java Engineers on initial 12-month contracts.

These roles sit within high-performing engineering teams focused on building scalable, production-grade systems leveraging modern cloud architecture, AI-enabled tooling, and automation frameworks.

Day to day activities 

• Design and develop scalable backend applications and distributed systems using Java
• Build and integrate APIs, microservices, and cloud-native platform components
• Contribute to AI-enabled workflow and automation initiatives across enterprise environments
• Work closely with engineering, platform, and architecture teams on modernisation programs
• Support integration of LLM/GenAI capabilities into production systems and internal tooling
• Drive engineering best practices across performance, scalability, reliability, and security

Your career so far

• Strong commercial experience across Java engineering and backend system design
• Experience building scalable APIs and microservices architectures
• Exposure to cloud-native environments, ideally GCP
• Strong understanding of distributed systems and enterprise application architecture
• Experience working within complex engineering environments and agile delivery teams

Big bonus points 

• Experience working with LLMs/GenAI solutions in production environments
• Exposure to AI-driven automation or workflow orchestration platforms
• Experience with containerisation, Kubernetes, CI/CD, or DevOps tooling
• Background within financial services, enterprise SaaS, or high-scale platforms

Contract Details

• Initial 12-month contract engagements
• Up to 1150 inclusive of Super 
• Multiple positions available
• Sydney-based & Hybrid
• 3 days on site 

This is an opportunity to join a large-scale engineering program where AI capability is being embedded into real production systems, platforms, and operational workflows.

Senior Engineer – Practice Lead | Global Financial Services | Sydney

If you're a Principal or Lead Engineer in platform or DevOps, and you're tired of being the person holding everything together while everyone else goes home. This is worth reading.

A globally recognised financial services organisation is looking for someone to own its Telemetry and Analytics practice. That means platform and product ownership of enterprise-scale SIEM and threat intelligence platforms, a live and varied project pipeline, and a small, high-trust team that actually has its act together.

The person who held this role for the past two years told us it's the first job they've had in years where they weren't online every weekend dealing with something platform-related. The support infrastructure here is real. You're not carrying it alone.

What you'll be working on

There's a solid pipeline of technical work ahead. A credential management overhaul spanning source code, pipelines, and release infrastructure; a vendor platform migration; new platform delivery; and active POCs in flight. It's genuinely varied, and it's hands-on. You'll be designing, integrating, and developing platforms rather than babysitting them.

Day to day you'll be working across IaC, CI/CD pipelines, containerisation, and scripting. Building and maintaining the infrastructure that underpins security operations at enterprise scale. You'll work closely with a small, experienced team across Australia and the US, and interface with detection engineers, analysts, and senior stakeholders globally.

What this does for your career

The brand carries weight. Two years here, owning platforms at this scale, delivering complex projects, and operating within a world-class financial services environment is a credible and visible step toward a Director or Principal Architect role. The person before you used it exactly that way.

What you'll bring

A strong DevOps, platform, or release engineering background. Solid hands-on experience with IaC (Terraform, Puppet, or Ansible), CI/CD pipelines, Kubernetes, and Linux. Proficiency in Python or Shell. You've worked in an enterprise environment, financial services, insurance, banking, or similar scale and complexity. And you're fluent in governance and compliance without being slowed down by it.

You don't need a security specialism. If you've operated SIEM, log pipelines, or observability platforms from a platform engineering angle, that experience is relevant. You will grow your domain knowledge with this role.

Hit apply or send me a message and I'll get you the full brief.

Julien@theonset.com.au - 0406 158 832

We need an Architect.

Not an assessor.

Someone who can shape architecture patterns, work through technical trade-offs with developers, and help engineering teams move faster while maintaining strong security guardrails.

This role sits at the intersection of Architecture, Engineering, Security and AI.

You'll help build platforms that support large-scale AI and agent-based workloads, while defining secure, repeatable patterns that simplify delivery rather than create friction.

You could come from a software engineering, platform engineering, cloud architecture, solution architecture, or security architecture background, but you'll need a strong understanding of how modern platforms are built and delivered.

Working closely with engineering teams, you'll design secure AI and cloud-native solutions, influence platform decisions, embed security into delivery pipelines, and establish architecture patterns that can scale.

We're looking for someone who can balance security, engineering, and business outcomes, and who understands that architecture is as much about enabling delivery as it is about managing risk.

If your experience has been primarily focused on governance, compliance, or architecture reviews, this probably isn't the right fit.

0438984265 / russell@theonset.com.au