Lead Engineer – Payments | Sydney & Melbourne

We're partnering with a leading engineering organisation to hire multiple Lead Engineers to help shape the future of its payments technology.

This is a rare opportunity to join a team at the forefront of payments innovation, building technology that will continue to scale and evolve over the coming years. You'll work on highly available, high-throughput payment systems while remaining hands-on with modern engineering and playing a key role in defining the future direction of the platform.

This isn't a role where you'll simply deliver tickets. You'll have a genuine voice in platform strategy, architecture and engineering standards, working alongside Principal Engineers to solve complex technical challenges and influence how the platform evolves.

We're looking for engineers who thrive on ownership, enjoy challenging the status quo, and want to help build the next generation of payments technology.

What you'll be doing

• Drive architecture and technical direction across a modern, cloud-native payments platform.

• Design and build highly scalable, resilient Java microservices running on Google Cloud.

• Lead complex engineering initiatives from concept through to production.

• Influence platform strategy, architectural decisions and engineering best practices.

• Mentor and develop engineers through technical leadership, design reviews and coaching.

• Champion innovation, reliability, performance, security and operational excellence across the platform.

What you'll bring

• Extensive hands-on experience with Java and Spring Boot, building modern distributed systems.

• Strong experience developing cloud-native applications on Google Cloud Platform (GCP).

• Deep expertise in microservices, event-driven architecture, distributed systems and API design.

• Proven experience designing and delivering large-scale, high-throughput payments platforms, with a strong understanding of payment processing and financial transaction systems.

• Experience with NoSQL databases and building highly available, resilient platforms.

• A track record of leading complex engineering initiatives while remaining hands-on with software development.

• The confidence to influence technical direction, challenge ideas, contribute to architecture discussions and drive engineering excellence.

• Excellent communication skills with the ability to engage and influence stakeholders across engineering and the wider business.

Please note: This is a specialist opportunity requiring recent hands-on payments engineering experience combined with hands-on engineering leadership. We're looking for engineers who want to influence platform strategy, drive innovation and make a genuine impact. Only candidates with recent payments engineering experience will be contacted.

Location: Permanent opportunities available in Sydney and Melbourne.

Senior Software Engineer – Java | Payments Platform

Sydney or Melbourne | Permanent

If you're the type of engineer who enjoys solving complex distributed systems problems, influencing technical direction, and building software that operates at genuine scale, this is worth a look.

We're partnering with one of Australia's leading technology organisations as they continue investing in a next-generation payments platform. With significant long-term investment already committed, you'll be joining a business at a pivotal stage as they modernise and scale a platform that will underpin millions of critical financial transactions for years to come.

This is more than another Java role. You'll have the opportunity to shape engineering standards, influence platform strategy, introduce new ideas, and work alongside experienced engineers who genuinely care about building quality software.

What you'll be doing

• Build and evolve a modern, cloud-native payments platform using Java and Spring Boot.

• Design highly scalable, resilient microservices capable of handling high-volume transaction processing.

• Influence architecture, platform strategy and engineering best practices.

• Drive improvements around performance, reliability, observability and operational excellence.

• Work closely with Product, Architecture and Engineering teams to solve complex technical challenges.

• Champion modern engineering practices, including AI-assisted development, automation and continuous improvement.

• Mentor other engineers through code reviews, technical discussions and knowledge sharing.

What we're looking for

• Strong commercial experience with Java and Spring Boot.

• Experience building microservices and event-driven distributed systems.

• Exposure to Google Cloud Platform (GCP) and modern cloud-native architectures.

• Experience designing and delivering APIs for large-scale production systems.

• Strong understanding of software reliability, resilience and security.

• Experience contributing to incident management and continuous platform improvement.

• Comfortable using AI engineering tools to improve development productivity.

• Excellent communication skills and the confidence to influence technical decisions.

• Experience within payments, cards, banking or other high-throughput transactional environments is highly regarded.

Why this opportunity?

• Help shape a strategic payments platform that will continue to evolve over the coming years.

• Influence technical direction rather than simply delivering tickets.

• Work on genuinely complex engineering challenges at enterprise scale.

• Join a collaborative, high-performing engineering culture that values ownership and innovation.

• Be surrounded by experienced engineers who enjoy solving difficult technical problems.

• Long-term career progression with opportunities to grow your technical influence as the platform expands.

If you're looking for an environment where your ideas will be heard, your technical expertise will have genuine impact, and you'll play a key role in shaping the future of a large-scale payments platform, we'd love to hear from you.

Apply now or reach out for a confidential discussion.

End User Support Technician / Helpdesk – 12+ Month Contract - Level 1 & 2

📍 Sydney CBD | 🔐 NV1 Clearance Required | 💻 Enterprise IT Environment

Ready to take your IT support career to the next level?

We’re looking for a hands-on, customer-focused End User Support Technician to join a high-performing team supporting critical enterprise technology environments across Sydney, Norwa and occasional visits to Canberra sites. This is your opportunity to work on cutting-edge IT systems in a fast-paced, collaborative environment where no two days are the same.

If you thrive on solving problems, supporting users, and being the go-to technical expert — this role is for you.

🚀 What You’ll Be Doing

As the frontline lead for Desktop & End User Support (Level 1 & 2), you’ll play a vital role in keeping operations running smoothly across multiple locations.

Your day-to-day will include

✅ Supporting enterprise IT devices, systems, and infrastructure
✅ Troubleshooting desktops, laptops, mobile devices, networks, and AV hardware
✅ Installing, configuring, monitoring, and maintaining IT environments
✅ Managing incidents and service requests through ticketing systems
✅ Performing upgrades, preventative maintenance, and emergency support tasks
✅ Deploying software and hardware across user environments
✅ Supporting remote sites when required (travel may be involved)
✅ Assisting users with onboarding and IT orientation
✅ Contributing to technical documentation and process improvements
✅ Ensuring security and compliance standards are maintained

🎯 What We’re Looking For

Technical Skills & Experience

✔ 3-4+ years’ experience in Desktop / PC Support
✔ Strong experience supporting Windows 11 environments
✔ Experience with ITSM / ticket management platforms (ServiceNow highly regarded)
✔ Knowledge of PC hardware, peripherals, LAN networking, Fibre/Ethernet
✔ Exposure to enterprise IT environments and infrastructure support
✔ Strong troubleshooting and analytical skills
✔ Ability to work independently and manage competing priorities
✔ Certificate-level IT qualification or equivalent experience

🌟 About You

You’re someone who:
🔹 Loves solving technical challenges
🔹 Delivers exceptional customer service
🔹 Communicates confidently with both technical and non-technical users
🔹 Thrives in fast-paced environments
🔹 Is proactive, adaptable, and eager to learn new technologies
🔹 Enjoys being part of a collaborative, high-performing team

🔐 Security Clearance Requirement

Please note: This role is only open to Australian Citizens with a current Australian Government Security Clearance, preferably at NV1 level.

💥 Why This Opportunity?

✨ Long-term 12+ month contract - opportunity for an ongoing contract/renewable
✨ Enterprise-scale technology environment
✨ Opportunity to work with global IT teams
✨ Varied and engaging technical work
✨ Supportive team culture
✨ Sydney CBD based - onsite

📩 Apply Now

If you're an experienced IT Support professional looking for your next exciting contract opportunity, we’d love to hear from you.

Apply today or reach out to Christina at 📧 christina@theonset.com.au to find out more!

This role isn't aimed solely at career Security Architects. If you've built your career around Microsoft 365, Modern Workplace or End User Computing architecture and have worked in an environment where security, governance and risk have been an important part of your design decisions, you'll be well suited to the role. 

This role is a Modern Workplace Architect to join a Security Architecture team. This role sits at the intersection of workplace technology and security, supporting the design and delivery of modern Microsoft solutions across a complex enterprise environment.

You'll work closely with engineering, infrastructure and project teams to provide architecture guidance across Microsoft 365, Windows, Intune, endpoint management and collaboration technologies. There are a number of major initiatives underway, including workplace platform modernisation, Intune migration, Microsoft Copilot adoption and secure collaboration, giving you the opportunity to influence how these technologies are designed and implemented from the outset.

You'll ideally have experience designing enterprise Microsoft solutions across technologies such as Microsoft 365, Entra ID, Intune, Windows and endpoint management, along with the ability to engage confidently with engineers, architects and business stakeholders. Exposure to security frameworks, threat modelling or risk assessments would be advantageous, but practical experience designing secure enterprise solutions is more important than having a purely cyber security background.

Feel free to call or email if you want more detail.

Russell@theonset.com.au / 0438984265

Lead Data Engineer | Azure Enterprise Data Platform

Most organisations talk about AI. This business is investing in the data foundations that actually make AI possible.

If you've ever wanted the opportunity to build an enterprise data platform the right way, rather than inherit years of technical debt, this is a rare chance to shape its future from the ground up.

I'm partnering with one of Australia's most respected organisations, with more than 50 years of success and a significant investment underway in Data, AI and modern engineering capabilities.

As Lead Data Engineer, you'll lead one of the organisation's most significant technology transformations. Today, critical business data lives across multiple legacy systems that don't seamlessly connect. Your role will be to bring these disparate data sources together into a modern, centralised enterprise data platform, creating a single source of truth that enables better business decisions, trusted reporting, and the data foundations required for AI and advanced analytics.

This is a genuine leadership opportunity for someone who enjoys remaining hands-on while influencing architecture, engineering standards and the long-term technology roadmap.

What you'll be doing

• Lead the transformation of multiple disconnected legacy systems into a modern, centralised enterprise data platform.
• Design and build a modern enterprise data platform using Microsoft Azure technologies.
• Develop scalable, production-grade data pipelines using Azure Data Factory and Azure Databricks.
• Define enterprise data architecture, modelling standards and engineering best practice.
• Establish DataOps processes, CI/CD pipelines and platform governance.
• Partner with architects, software engineers and business stakeholders to deliver data solutions that create real business value.

What you'll bring

You'll ideally have:

• Proven experience leading the design and delivery of enterprise-scale data platforms.
• Strong hands-on experience with Azure Data Factory and Azure Databricks.
• Experience designing and delivering enterprise-scale data platforms.
• Deep knowledge of ETL/ELT, SQL and modern data modelling.
• Experience implementing DataOps, CI/CD and modern engineering practices.
• Strong stakeholder engagement skills and the ability to influence technical direction.

Experience with Microsoft Fabric, Azure Synapse, Spark or other modern cloud data platforms would be highly regarded, but isn't essential.

Why this opportunity?

• Lead one of the organisation's most significant technology transformations.
• Build a centralised enterprise data platform that becomes the single source of truth for the business.
• Influence architecture, engineering standards and technology decisions from the ground up.
• Work alongside a growing AI & Innovation function shaping the organisation's future.
• Enjoy genuine ownership, autonomy and the opportunity to leave a lasting technical legacy.

If you're looking for the opportunity to solve complex engineering challenges, modernise legacy platforms and build the data foundations that will power AI across the business, we'd love to hear from you - apply now!

Finance & HRIS Platforms Lead — Melbourne — $170,000 + super

Platform leads carry the technical depth to run an entire organisation's systems. Most are still asking permission to make a routine call. Why?

Here, you'll earn $170,000 + super, plus an extra week of annual leave on top of standard entitlements, and free tickets to major sporting events throughout the year, if you're into that kind of thing. 

But it's not just the money or the perks. In this role, you're not the person who implements what's been decided elsewhere, you're the person deciding. 

Access controls, testing and release practices, what gets simplified, automated or replaced across the platform stack: that's yours to call, not yours to escalate. 

Your experience stops being something that executes someone else's roadmap and starts being what actually sets it.

This is a well-known national organisation pulling HR, Finance, CRM, Performance, and Cloud platforms out of silos. 

You'd own the Finance & HRIS side specifically: think Workday, TM1, Cognos, Concur, D365 or similar, plus the integrations that connect them.

If you stayed where you are, you'd likely still be running the same platforms under the same constraints in a few years' time, waiting on the same approvals. 

Move here, and you'd have spent that time rebuilding a fragmented five-platform environment into one coherent, modern stack, with your name on the decisions that got it there, and the results to point to.

That matters for where this goes next. This organisation is growing, and platform unification is only the start of it, the trajectory from here is toward a Head of Technology remit, for the person who actually owns this transformation rather than just maintains it. 

You're not applying for a support role with a ceiling. You're applying to be the one who builds the case for what comes after this job, because you'll be the one who can prove it worked.

You'd also have people actively wanting you to push. 

Senior leadership is driving AI-enabled ways of working and backing people who'll challenge a comfortable, long-tenured status quo. If you've spent years trying to modernise a legacy stack while everyone around you quietly defended it, that's not a battle you'll have here.

Good fit if you've got 8+ years across Finance/HRIS platforms and business process/data management, strong hands-on systems administration experience, and a track record of fixing the actual problem rather than the symptom.

Send your CV through, or me a message, happy to talk specifics before anything formal.

julien@theonset.com.au - 0406 158 832

Engineering Manager | Sydney | Lead a High-Growth Product Area

• Hybrid Working - 3 days in office

• High Visibility Business Unit - key investment area of the business

• Hands-On Technical Leadership - Greenfield and Brownfield work

Join one of Australia's leading digital businesses and take ownership of a critical engineering function powering a key growth area of the organisation.

As an Engineering Manager, you will create a team responsible for building and scaling products that millions of Australians use each day. This is a rare opportunity to combine technical leadership, people leadership, and strategic influence while remaining close enough to the technology to make a genuine impact.

You'll be a hands-on technical leader, partnering closely with Product, Design, and Principal Engineers to shape architecture, drive delivery, and develop engineering capability across a business unit that sits at the centre of future growth plans.

You'll inherit an existing technology environment, but will also be given the autonomy to influence future technical direction, improve engineering practices, and help shape the next generation of products used by both B2B and B2C customers every day.

What's in it for you?

• Create a new team working on a strategically important, revenue-generating product area.

• Remain hands-on while influencing architecture, technical direction, and engineering standards. Allowing you to have a direct impact on users. 

• Drive meaningful technical investment, platform improvements, and system evolution.

• Be a technical innovator in the AI space. 

The Role

You'll be responsible for leading a team of engineers, driving delivery outcomes, and ensuring the quality, scalability, and reliability of the systems you own.

You'll balance strategic leadership with technical contribution, helping the team navigate complex engineering challenges while ensuring delivery remains aligned to business objectives.

Working closely with business stakeholders, you'll influence roadmap decisions, guide architectural evolution, and create an environment where engineers can perform at their best and align with key business goals and metrics.

What You'll Bring

• Proven experience leading software engineering teams within modern product organisations.

• Strong hands-on background across C#/.Net and modern frontend technologies.

• Experience designing and evolving scalable cloud-based systems across AWS, Azure, or GCP.

• Strong understanding of distributed systems, APIs, microservices, event-driven architecture, and modern engineering practices.

• Experience balancing product delivery, technical debt, platform investment, and operational excellence.

• Ability to work closely with Product and Design to influence roadmaps, prioritisation, and business outcomes.

• Strong stakeholder management skills with the ability to communicate technical decisions to both technical and non-technical audiences.

If you're looking for a role where you can continue to influence technology while building and leading exceptional engineering teams, we'd love to hear from you.

Apply now or reach out to Karl directly at karl@theonset.com.au

Software Engineer | Sydney | Utilise AI to develop exciting new features 

Seeking stability and innovation in your next role?

Why choose between the excitement of a start-up and the stability of an established company when you can have both!

Join a profitable scale-up with 12 years of success and significant funding to scale even further!

About the Company

This Sydney-based global design company that empowers small businesses to build their brand instantly. With a loyal customer base in Australia, EU, and the US, they are now focused on making their platform the best in the world.

The company has just rebranded their small-business branding application, anticipating more traffic and engagement. They are already leveraging AI, and have a dedicated AI team to develop image-based generative AI, keeping them ahead of the competition.

They value flexibility. Most of the team comes in one day a week, and they have monthly team events. If you prefer the office, there's a core group that goes in regularly, and they even have a coffee tab next door!

About the Role

This company is looking for both Mid-Senior level engineers to join their Agile, quality-focused teams. You'll work on developing and improving a large customer-facing platform, handling tasks from database design to integration development.

As a backend-focused engineer, you'll build and deploy new functionalities, support existing features, enhance site scalability, infrastructure, and testing, all in a highly collaborative environment.

They have weekly highlight and feature meetings, perfect for showcasing your work and staying updated on product developments.

What You'll Need

• Expertise in Microsoft .Net Framework and C# (.Net Core, WebApi, MVC)
• Experience with AWS or any other cloud provider
• Experience using AI in your development
• Solid REST API skills
• Knowledge of Vuejs, Angular, React, or any JS framework is a bonus
• Strong understanding of SDLC and TDD
• Significant experience writing unit and integration tests
• Experience with CI tools
• Excellent communication skills and the ability to work in an agile environment
• A passion for learning and taking ownership of your work 

Benefits

• Flexible working arrangements (home and office)
• Work with a team of innovators and tech enthusiasts (AI already introduced)
• Equity in the company
• Career progression in a fast-growing company
• Talented team and fun culture with quarterly events and team lunches

If you're ready to make an impact and grow with a dynamic and supportive team, I would love to hear from you! Apply directly now to join their journey.

Staff Engineer  

Lead the technology that moves a nation.

Sydney | Hybrid - 2/3 days Office 

Every day, millions of Australians rely on this business to keep life moving.
Behind every on-time order, every seamless delivery, and every moment of connection - there’s technology designed by brilliant people like you.

We’re looking for a Staff Engineer who can elevate ideas into scalable architecture, guide teams with empathy and precision, and make complex systems feel effortless for customers.

What You’ll Be Doing

You’ll be the bridge between strategy and execution, setting the architectural direction for the Order Delivery domain, partnering with engineering squads, and ensuring the health and stability of the digital ecosystem that underpins customer trust.

Expect influence at scale, autonomy to innovate, and the chance to leave a visible legacy on one of Australia’s largest digital transformations.

Your Impact

• Inspire and lead cross-domain engineering teams through architectural clarity.

• Define and communicate the target-state vision and the roadmap to get there.

• Collaborate with product and engineering leaders to embed modern, agile delivery practices.

• Model architectures that deliver measurable business and customer value.

• Drive innovation while maintaining operational excellence.

You’ll Bring

• Deep engineering experience, likely as a Staff Engineer, Technical Architect, or Tech Lead within complex, cloud-native environments.

• Strong foundation in .NET, Azure/AWS/GCP, Microservices, and Kubernetes.

• Proven track record in scaling distributed systems and optimising performance.

• Natural leadership - you build confidence through collaboration, clarity, and care.

• A mindset that balances technical purity with commercial impact.

What You’ll Experience

• A flexible hybrid model that prioritises wellbeing and balance.

• A collaborative culture built on trust, curiosity, and growth.

• Discounts across a number of Iconic brands connected to the business.

• Career pathways across a global organisation with the resources to back big ideas.

If you’re ready to design the systems that power Australia’s everyday, we’d love to hear from you.

Apply here or directly reach out to Karl - karl@theonset.com.au