Software Engineer (Fullstack JavaScript)

AI-First Product Team | Sydney-based 

About the Role

We’re looking for a Community Engagement Specialist who knows how to build, nurture, and energise online communities. You’ll be the human heartbeat of our brand - the person who turns users into advocates, conversations into insights, and engagement into loyalty.

What You’ll Do

• Manage and grow online communities across Discord, Telegram, Reddit, forums, and in‑app channels
• Facilitate conversations, answer questions, and keep discussions healthy, active, and on‑brand
• Build relationships with power users, VIPs, and community influencers
• Plan and execute community events, AMAs, competitions, and engagement campaigns
• Gather community insights and feedback to share with product, marketing, and leadership
• Monitor sentiment, identify trends, and proactively address issues
• Develop community guidelines, playbooks, and engagement frameworks

What You Bring

• 2–3 years’ experience in community management, engagement, or customer‑facing digital roles
• Experience in online gambling, gaming, crypto, or fintech (or strong interest in these sectors)
• Strong communication skills and a natural ability to build rapport
• Comfortable managing fast‑moving, high‑volume online conversations
• Data‑aware mindset- you understand what good engagement looks like and how to measure it
• A proactive, people‑first approach

Why you’ll love it 

We are building a new Information Security program, and you will be the first Detection and Response Engineer. This is a hands-on role where you will design and implement detection capabilities from the ground up, focusing on proactive threat identification, automated response, and intelligence driven security operations.

Key Responsibilities:

• Conduct a focused threat modelling exercise to identify key risks and gaps, including additional log sources required for the SIEM rollout and AI system monitoring.
• Develop and maintain detections using a Detection-as-Code approach, iterating based on threat modelling outcomes and emerging threat intelligence.
• Design, implement, and optimise automated triage and investigation playbooks to accelerate response times.
• Integrate threat intelligence feeds into the SIEM and a dedicated AI agent for enriched detection and context.
• Conduct priority threat hunting exercises targeting the highest risk areas of the environment.
• Collaborate with SOC, IT, and engineering teams to ensure logs, alerts, and detection rules are actionable and effective.
• Document and communicate findings, detections, and lessons learned to inform broader security strategy.

Required Skills & Experience:

• Hands-on experience in detection engineering & threat hunting
• Strong familiarity with SIEM platforms, log ingestion, and analytics.
• Experience with Detection-as-Code methodologies
• Understanding of threat modelling and risk-based detection prioritisation.

Delivery Lead - B2B SaaS Fintech

• B2B Saas, high growth fintech
• Combine your project and program management expertise to make an impact
• Circa $200k plus super

With an innovative product that services large organisations in the financial services industry, this cutting edge scale-up is looking for a Delivery Lead that has impeccable project and program management expertise.

You’ll be working closely with a range of stakeholders internally, managing the execution of multiple critical projects as they build and implement their SaaS product. Someone who has experience leading the seamless delivery of products to Tier 1 financial services institutions will be able to really add value here.

What you'll be doing

• Work with Product Consultants to coordinate project teams and lead client deliveries.
• Develop client-facing delivery plans and budgets, but also internal sprint plans.
• Lead regular team meetings across the global teams.
• Oversee release management activities as changes are promoted and tested.
• Drive to continuously improve internal delivery processes.
• Define project metrics and communicate to all stakeholders.
• Deliver agreed project updates to external and internal stakeholders.

What you bring

In order to hit the ground running, Delivery / Project Management experience in a Fintech start-up/scale up is essential.  In addition, you'll be able to demonstrate your:

• Experience delivering products/projects for clients in the Wealth Management or Superannuation industries (or similar).
• Deep expertise in a Project Management capacity (or similar) in software development environments.
• The ability to communicate with C-suite stakeholders.
• Experience working with fast-paced, agile delivery teams.
• The ability to jump quickly between varying priorities, and execute to tight deadlines.

Does this sound like you? Call Michelle Rubinstein at The Onset on 0413 463 043 or apply online.

Lead Data Engineer

Sydney | Hybrid

$200k - $220k + super (depending on experience) 

We’re partnering with a high-growth technology organisation building advanced detection products driven by cutting-edge algorithms and R&D. They are seeking a Lead Data Engineer to take ownership of the data platforms and tooling that underpin their core revenue-generating technology.

This is a high-impact leadership role where you will shape the data ecosystem that enables AI/ML development at scale - influencing architecture, standards, and the overall usability of data across engineering teams.

The Role

You will lead the uplift of data tools and infrastructure that support AI/ML model development and deployment. This includes enabling robust pipelines, lifecycle management, validation, and standardisation practices that allow teams to confidently build and iterate on algorithm-driven products.

A core focus of the role is improving how data is collected, ingested, stored, governed, and ultimately made accessible and usable across the organisation.

You’ll work alongside two other technical team leads within a group supporting algorithm development for detection products and R&D initiatives. As part of this, you’ll build and lead a team of three across data engineering and software engineering.

The scope and influence of this role are significant - you’ll be architecting the tools and data platforms that directly underpin the company’s primary revenue stream.

Ideal Background

We’re particularly interested in candidates who have supported AI/ML or algorithm-driven systems in technically complex environments. Relevant industry experience may include:

• Autonomous systems, robotics, or drone platforms
• Defence, radar, communications, or signal-processing technologies
• Aerospace, satellite, or geospatial systems
• Autonomous vehicles or advanced mobility
• Industrial IoT or edge AI environments

Candidates from similarly rigorous engineering domains will also be considered.

Experience & Skills

• Proven experience designing and delivering end-to-end data tooling and platform architecture
• Strong programming capability in Python, plus at least one compiled language (Go or C++ preferred)
• 5+ years working with AI/ML-based systems and supporting production pipelines
• 3+ years leading or mentoring engineering teams
• Deep understanding of data collection, ingestion, storage, and governance best practices
• Experience enabling scalable, reliable data access for algorithm or model development teams

If this sounds like you and you've got the relevant skills hit apply or reach out to ailbhe@theonset.com.au

You’ll be the only AppSec engineer based in Australia, reporting to the Head of Product Security overseas. Working for a large US eCommerce platform.

That means you’ll own AppSec locally, from spotting vulnerabilities to making sure they’re fixed. It’s hands-on work, not just pointing out problems. If you find an XSS in a web app, you’ll look at the PR, make the fix if it’s simple, or coordinate the change if it requires a bigger architectural update. You’ll also take ownership of tasks like rotating credentials and securing databases.

The role covers traditional web app security (mainly .NET) as well as cloud security in Azure. You’ll work with tools like Wiz, Oligo, runtime protection platforms, and AI-assisted security review tooling. Your job isn’t just to run scans; you’ll dig into the findings, validate true positives, understand the root cause, and turn them into controls.

Compliance is part of the picture too. The company is going through PCI and SOC 2, so you’ll help build and enforce controls that align with these frameworks. 

If you want to talk, call, text or email - russell@theonset.com.au / 0438984265

Senior AI Engineer (AI-Facing Systems)

Join and immediately contribute to a high calibre growing AI team building real, production-grade AI systems.

Senior Backend Engineer (Python & AWS)

North Sydney | Hybrid (3 days in office)

This isn’t a role for someone who just wants to ship tickets.

It’s for an engineer who wants to shape architecture, modernise a real platform, and influence technical direction inside a profitable, globally operating data business.

The company operates at  serious scale, processing and resolving large volumes of identity and data signals used by major international organisations. They are stable, growing (40%+ revenue growth over the past two years), and backed by long-term enterprise contracts.

Now they’re ready to uplift their platform for its next phase.

What You’ll Love About Working Here

1. Genuine Architectural Influence
You’ll act as a 2IC to the Head of Technology. Your thinking will shape direction not just implementation.

2. Real Scale (Not Resume Scale)
Large datasets. Performance-sensitive systems. Complex resolution logic.
You’ll solve meaningful engineering problems, not UI tweaks.

3. Modernisation with Backing
There’s technical debt  and full leadership buy-in to fix it properly.

4. Stability Without Bureaucracy
Profitable. Long-tenured team. Flat structure.
No corporate red tape but strong standards and ISO discipline.

5. Ownership Over Noise
You won’t be one of 200 engineers.
You’ll be one of a small, high-trust team.

What You’ll Get From This Role

• End-to-end ownership of backend architecture decisions

• Exposure to large-scale AWS system design

• The opportunity to uplift engineering standards

• Influence over roadmap and prioritisation

• A stable environment where your work compounds over time

If you want to look back in three years and say,
“I built that platform properly” - this is that role.

What You Need to Have Already Done

This is not a stretch role.

To be successful here, you will likely have:

• 6–10 years backend engineering experience

• Designed and built production systems in AWS

• Strong Python expertise (Django/Flask or similar)

• Worked on systems handling meaningful data scale

• Made architectural decisions not just implemented them

• Improved performance, security, or scalability of legacy systems

• Influenced stakeholders and extracted unclear requirements

You must be able to:

• Think architecturally first

• Communicate with gravitas

• Operate without ego in a flat structure

• Prioritise effectively when everything feels important

Environment

• AWS cloud-native

• Python backend

• Snowflake and large-scale data querying

• Hybrid (Mon, Tues, Fri in North Sydney - weekly team lunches)

• Strong culture, many team members have worked together 10-15+ years

• Investment in learning and conferences

This role suits someone who wants impact over title.Ownership over hierarchy. And long-term influence over short-term noise.

If this sounds like you then apply here or share your resume to Dani - danielle@theonset.com.au

Head of Quantitative

B2B Financial Services Technology | Global Scale | Sydney (Hybrid)

• Greenfield opportunity to define a global quantitative capability

• Direct influence on product strategy and international expansion

• Work with sophisticated institutional clients at scale

A high-growth B2B financial services technology company is appointing a Head of Quantitative in a newly created role to build and lead its next-generation modelling capability.

Operating at the intersection of wealth management, actuarial science and enterprise software, this business partners with tier-one financial institutions across Australia, the UK and Europe to modernise how financial advice is delivered at scale.

This is a rare opportunity to architect stochastic modelling frameworks from first principles, while building and leading a world-class quantitative function with global reach.

The opportunity

The business is at a pivotal inflection point and is poised for continued market traction.

Having successfully deployed deterministic advice models at institutional scale, the next phase of growth requires the introduction of sophisticated stochastic modelling to unlock new markets, new products and materially improved customer outcomes.

As Head of Quantitative, you will:

• Define the quantitative strategy

• Lead the technical uplift to stochastic modelling

• Build and scale a high-performing team

• Act as the ultimate authority on model risk, integrity and regulatory alignment

This is a genuine player–coach role, with significant hands-on technical ownership.

What you’ll be responsible for

• Architect and deliver stochastic modelling frameworks (Monte Carlo, scenario generation, multi-goal optimisation)

• Lead the transition from deterministic Excel-based models to scalable calculation engines

• Translate complex regulatory and advice policy requirements into robust quantitative logic

• Build, mentor and scale a quantitative team across Australia and global markets

• Partner closely with Product and Engineering to productionise models at scale

• Engage directly with tier-one institutional clients, actuarial teams and regulators

• Own quantitative governance, validation and model risk standards globally

What it will take to make an impact

• Deep expertise in stochastic / actuarial / quantitative modelling

• Strong hands-on background in tools such as Excel, Python or actuarial modelling platforms

• Experience operating in regulated financial services environments (wealth, retirement, insurance or advice technology)

• Proven ability to lead technical teams while remaining hands-on

• Confidence engaging with C-level stakeholders, institutional clients and regulators

• Comfort operating in ambiguity within a high-growth, product-led business

• Advanced qualifications in Actuarial Science, Mathematics, Statistics or a related quantitative field are highly regarded.

If you’re motivated by complex problems, real-world impact and global scale, this is a rare leadership opportunity.  Call Michelle Rubinstein at The Onset on 0413 463 043 for a confidential discussion or apply online.