Finance Operations Coordinator / Senior Bookkeeper (Part-Time)

Onset Group | Sydney | Hybrid (4 days onsite) | ~25 hours per week

At Onset, we partner with some of Australia’s most innovative technology companies across SaaS, AI and engineering. We’re a boutique recruitment firm known for high standards, strong relationships and a collaborative, team-first culture.

We’re looking for a Finance Operations Coordinator / Senior Bookkeeper to take ownership of the day-to-day financial operations of the business. This role supports the Operations Manager and works closely with our finance support team to keep financial processes running accurately and efficiently. 

The Role

You’ll manage core finance operations including invoicing, reconciliations, debtor management and financial administration.

Key responsibilities include:

Billing & Revenue Operations

• Manage client invoicing

• Ensure billing accuracy

• Reconcile CRM and accounting data

Accounts Receivable

• Monitor outstanding invoices

• Manage debtor follow-ups

• Maintain clean receivable records

Financial Operations

• Perform daily bank reconciliations

• Maintain financial records in Xero

• Manage finance queries and internal reporting support

Compliance
Support statutory obligations including:

• BAS

• Payroll tax

• Fringe Benefits Tax

• Workers compensation reporting

You will work with external accountants to ensure compliance deadlines are met. 

What We’re Looking For

• Strong Xero experience

• Bookkeeping, finance admin or accounts background

• Accounts receivable and reconciliation experience

• High attention to detail

• Strong spreadsheet skills

• Organised and process-driven

Experience in professional services environments (recruitment, consulting, agency, legal, tech services) is highly valued.

Work Structure

This role is designed to be flexible.

Typical structure:
~10:00am – 3:00pm, Monday–Friday

Other part-time arrangements can be discussed.

Important Requirement: Applicants must be Australian Residents due to government portal access required in the role.

Senior Backend Engineer (Node.js) - 6 Month Contract

$900 - $1,000/day incl super | Hybrid - Sydney

About the job

We're transforming the grocery industry

At Instacart, we invite the world to share love through food because we believe everyone should have access to the food they love and more time to enjoy it together. Where others see a simple need for grocery delivery, we see exciting complexity and endless opportunity to serve the varied needs of our community. We work to deliver an essential service that customers rely on to get their groceries and household goods, while also offering safe and flexible earnings opportunities to Instacart Personal Shoppers.

Instacart has become a lifeline for millions of people, and we’re building the team to help push our shopping cart forward. If you’re ready to do the best work of your life, come join our table.

Instacart is a Flex First team

There’s no one-size fits all approach to how we do our best work. Our employees have the flexibility to choose where they do their best work—whether it’s from home, an office, or your favorite coffee shop—while staying connected and building community through regular in-person events. Learn more about our flexible approach to where we work.

Overview

FoodStorm, part of Instacart, powers prepared-foods operations for major retailers. As a Senior Product Manager, reporting to the General Manager of FoodStorm, you will own a critical product domain within FoodStorm’s Order Management Platform, driving product strategy and execution that enables retailers to scale their operations - in store and online. Your work will directly influence how enterprise partners manage orders, production, fulfillment, and integrations and how customers experience the grocery store of the future.

You will join a small, high‑impact R&D team operating like a scale‑up and collaborate with a much larger Product team as part of a publicly listed Silicon Valley tech company. This role requires strong product leadership, sharp commercial thinking, clear communication, and the ability to partner closely with Engineering, Design, DS, Professional Services, and other Instacart Product teams to deliver measurable customer and business impact.

Combining the culture of a scale-up with the benefits and influence of a Silicon Valley tech giant, FoodStorm provides a unique opportunity to join our small, growing R&D team based in Australia, while collaborating with a large, highly proficient team around the world. The role offers full-time remote work within Australia or access to our Melbourne office, competitive salary, and additional employee benefits.

About The Job

• Own a critical product area end-to-end, from discovery through delivery and iteration, ensuring clear commercial and customer outcomes are defined and achieved.
• Translate customer needs and business objectives into clear product strategy, well-defined roadmaps, and focused execution plans grounded in data and measurable impact.
• Work extensively with our retail partners to scope and test features, observe user behaviors, and iterate quickly; support pilots and launches as needed to drive strong adoption and value realization.
• Lead the entire product lifecycle, from deep user and retailer discovery to final delivery. Use qualitative and quantitative research, retailer feedback, and industry best practices to identify new opportunities. Intake, validate, and convert new ideas into implementable projects with clear success metrics, and PRDs/specifications.
• Champion best-in-class design and user experiences by applying strong product craft and design thinking principles.
• Drive cross‑functional alignment by partnering closely with Engineering, Design, Data Science and Operations teams to deliver high-quality, scalable solutions; communicate tradeoffs, risks, and progress with transparency and urgency.

About You Minimum Qualifications

• You have 4+ years of Product Management experience, ideally within complex web-based or enterprise B2B software environments.
• You’ve driven product or technical innovation from 0-1 and know how to turn early signals into scalable solutions.
• You’re highly data-literate and comfortable working with complex analytics to guide decisions in ambiguous situations.
• You communicate complex ideas with clarity and influence, aligning cross-functional teams and senior stakeholders around shared goals without direct authority.
• You operate with an entrepreneurial mindset — comfortable in fast-moving, evolving environments while maintaining high standards.
• You care deeply about building great software and strong teams — and you hold yourself accountable to meaningful customer and commercial outcomes.

Preferred Qualifications

• Your leadership style is grounded in trust, clarity, and empowerment. You raise the bar for those around you.
• Strong ability to navigate both a startup‑like environment and Instacart‑scale operations
• A passion for building great teams and great software that delivers measurable impact for customers and the business.

A high-growth technology business within a well-backed ecosystem, focused on solving complex operational challenges for enterprise customers. The company is entering a significant scale phase with ambitions to become a category-defining platform.

The leadership team is looking for a senior sales operator who can help drive enterprise adoption and play a central role in building the company’s revenue engine.

The Opportunity

This role will drive enterprise sales and strategic commercial growth. The successful candidate will work closely with leadership to shape go-to-market strategy while building high-value relationships with large enterprise clients.

This is a unique opportunity to join a business at an inflection point and help scale a platform with significant long-term potential.

Key Responsibilities

• Drive enterprise sales and revenue growth
• Build relationships with senior decision makers at large organisations
• Lead complex commercial negotiations and strategic partnerships
• Help shape the go-to-market strategy as the business scales
• Work closely with product and leadership teams on market strategy

Interested to learn more? E-mail megan@theonset.com.au

Due to the high volume of applications expected, only shortlisted candidates will be contacted.

Senior / Staff Backend Engineers - Build Platforms at the Intersection of Embedded Systems, Data & AI

I’m currently partnering with a small but ambitious Australian technology company that is quietly building a platform sitting at the intersection of embedded products, data, and emerging AI capabilities. 

The engineering organisation is structured around three key initiatives. The core platform team focuses on embedded product infrastructure, which is where most engineers initially join and build a deep understanding of the systems. Alongside this, the company is developing a new AI-driven initiative, with their first product expected to launch later this year. The longer-term ambition is to evolve into a generative-AI-native platform, with engineers gradually gaining exposure to this work as the roadmap unfolds.

From an engineering perspective, the team is looking for Senior or Staff-level backend engineers who think beyond a single language or framework. They are particularly interested in polyglot engineers who have built and operated production systems across multiple stacks and enjoy solving complex problems rather than simply implementing tickets.

The environment is highly collaborative and product-focused. Engineers work closely with product, design, and data teams to shape solutions from early problem definition through to delivery. Strong engineers here are the kind who ask thoughtful questions, challenge assumptions, and bring others along on the journey rather than working in isolation.

Technically, the platform is largely Python-based (Django / Flask / FastAPI) with cloud infrastructure in AWS, modern CI/CD practices, and architectures built around microservices and event-driven systems. Engineers are expected to take ownership of systems end-to-end - from designing scalable services and reviewing code across the squad, to improving platform health through monitoring, logging, and infrastructure automation.

Because the company operates in a highly regulated industry, engineers must also enjoy working within real-world constraints. This means designing systems that are not only scalable and elegant, but also secure, resilient, and compliant.

The team itself is distributed, with a strong engineering presence in Sydney but openness to outstanding engineers across Melbourne or Newcastle provided collaboration and communication remain strong.

This role tends to resonate with engineers who:

• Enjoy owning systems end-to-end, not just contributing small components
• Are curious problem solvers who ask the right questions before jumping to solutions
• Have experience working across multiple languages or architectures
• Care about platform quality, engineering standards, and mentoring others
• Want exposure to AI-driven product development while still working on meaningful platform problems

It’s a rare opportunity to join a small, high-calibre engineering team early, shape the technical platform, and work on problems that sit across backend engineering, distributed systems, and the next generation of AI-enabled products.

If you want to discuss further, reach out to reema@theonset.com.au

Senior Machine Learning Engineer (Computer Vision)
Sydney | Full-time | Hybrid (3 days per fortnight)

The Mission
A Sydney-based engineering team builds perception systems that inspect critical infrastructure in the real world. Think crack detection on dams and corrosion detection on heavy industrial assets. This role exists to build new computer vision and ML capability, then carry it all the way into production.

Not a demo. Not a research island. End-to-end ownership.

What You’ll Work On
• Designing and shipping ML and computer vision systems across multiple software platforms
• Building scalable pipelines for image and 3D/spatial data (point clouds, meshes)
• Developing production-grade models and data processing workflows (Python, PyTorch/TensorFlow, scikit-learn, NumPy, Pandas)
• Handling uncertainty in sensors, data quality, and operating environments
• Taking ML components from PoC through to product features that are reproducible, monitorable, and maintainable
• Validating performance and robustness against real customer requirements
• Communicating trade-offs, limitations, and technical risk clearly to stakeholders
• Partnering with product and engineering to shape feature scope, priorities, and delivery plans
• Improving team practices through documentation, mentoring, and pragmatic engineering standards

The Way This Team Works
• Extreme ownership: engineers steer from ideation to requirements to build to production
• Cross-functional by default: product, ops, data capture, platform engineering, global stakeholders
• Flexible work patterns: outcomes matter, not clock watching
• High retention: people stay because the problems are hard and the impact is real
• This is a long-game role with room to shape your lane, whether that’s technical depth, product influence, or leadership over time

What Matters Here
• 4+ years of hands-on applied ML and computer vision experience (detection, segmentation, classification, 3D reconstruction)
• Strong Python and modern ML framework experience
• Solid software engineering fundamentals (Git, testing, modular design)
• Comfortable in Linux environments
• You can navigate ambiguity without freezing or over-processing
• You can own a feature like it’s your baby and run it to maturity
• Clear communicator across technical and non-technical audiences

Nice To Have
• Deep experience working with 3D data (point clouds, meshes, spatial workflows)
• Robotics, SLAM, sensor fusion, or autonomy-adjacent background
• CI/CD, deployment workflows, orchestration tooling, and production monitoring patterns

Apply / Enquire
Apply directly or email Toby Tank at toby@theonset.com.au with your CV or a short note on what you’ve shipped in production (especially in CV, 3D, robotics, or sensor-driven ML).

Write code that makes the heart of this trading machine beat.

Software Engineer (C++)

Hands-on development role focused on exchange connectivity and rapid execution

The mission

This global High-Frequency Trading ("HFT") firm provides liquidity to global markets, keeping trading action alive globally, open to close. Their two opportunities to win are:

1. Relentlessly developing trading strategies that capitalise on opportunities while they exist
2. Executing on them while they exist, before their competitors*

*Here's where you fit in.

The team

A collection of the world's sharpest mathematical, logical and technical minds across trading, engineering, IT and operations. You'll find your place in a group of engineers responsible for driving excellence in:

• Hardware: FPGAs keep things fast and customisable
• Software: Java, C++, CUDA, Python*
• ML: Actually, this is a secret

*These folks, your new colleagues are divided between core teams, and teams attached to particular trading activities

The control room

State-of-the-art office and lab environment fit for the market's most sought-after talent, complete with the following benefits:

• Generous paid parental leave
• Catered meals, barista coffees, well-stocked kitchen
• Volunteering opportunities, charitable donation matching
• A stacked social calendar
• Family days

The problem

• Insane socio-economic climate + headlines that could be Black Mirror episode titles = market volatility
• Volatility = growth for HFT firms equipped to capitalise (like this one)
• Growth = more brainpower needed to stay ahead

The solution

An engineer with a winning mindset, and likely experience and knowledge of:

• Modern C++ (on Linux) in ultra-low latency CI/CD environments
• Genuine ground-up "build" projects
• Thriving in high-pressure, often ambiguous circumstances
• Outstanding academics in Computer Science, Maths, Physics

Still reading?

Let's explore.

The world’s biggest breakthroughs rarely fail in theory, they fail in execution.

A process works beautifully in the lab, then collapses under real-world constraints.
A technology clears every technical hurdle, then stalls at pilot because no one owns delivery.
A promising system exists, but never quite makes the leap to something you can actually build, install, and run.

This team exists to close that gap.

They operate where science meets engineering reality — taking first-of-a-kind technologies out of the lab and into pilot plants, demonstration facilities, and ultimately commercial scale.

Right now, they’re looking for a Senior Process Engineer who can own that complexity end-to-end

What you'll be doing 
This is not a “sit behind the model” role.
You’ll take ownership of pilot plant delivery — translating experimental results into something that can be designed, built, installed, commissioned, and operated safely.
You’ll work alongside scientists, simulation specialists, fabricators, vendors, and commissioning crews — and you’ll be accountable for making the system work in the real world.

In this role, you will:

• Own the delivery of pilot-scale systems, from early design through to installation and commissioning.
• Translate lab and experimental outcomes into practical, buildable process designs.
• Lead first-of-a-kind process design, embedding scale-up, operability, and safety considerations from day one.
• Prepare and review engineering deliverables including BFDs, PFDs, P&IDs, equipment lists, and preliminary layouts.
• Develop and iterate mass and energy balances, equipment sizing, and process assumptions as data evolves.
• Perform techno-economic assessments to inform design choices and commercial decisions.
• Lead procurement of process and mechanical equipment, working directly with local and international vendors.
• Act as the on-site technical owner during fabrication, installation, commissioning, and troubleshooting.
• Identify technical, commercial, and safety risks early — and actively manage them through delivery.
• Communicate clearly with internal leaders and external stakeholders when trade-offs are required.

What we’re looking for

This role suits someone who has been through pilot delivery before, and understands where theory breaks down.

You’ll be a strong fit if you have:

• A degree in Chemical Engineering
• Hands-on experience delivering pilot plants or demonstration-scale systems — not just contributing to them.
• The ability to move comfortably between modelling, design, site work, and commissioning.
• Experience working with hazardous or corrosive systems, with a strong safety-by-design mindset.
• Sound judgement when data is incomplete and timelines are non-negotiable.
• A track record of owning outcomes, not just producing analyses.
• Clear communication skills — especially when explaining uncertainty, risk, and trade-offs.
  

The Ideal Background

• There’s no single “perfect” background for this role. Strong candidates typically have experience working outside the lab, delivering pilot or demonstration-scale systems in real operating environments.
• You’re likely to have worked with corrosive or hazardous processes, early-stage or first-of-a-kind technologies, and systems where data was incomplete and design assumptions were tested in the field.
• Your experience may come from chemical manufacturing, hydrometallurgy, mineral or metals processing, energy-adjacent technologies, or pilot plant operations. Specific commodity experience is less important than the ability to own delivery, balance safety and operability, and make sound engineering decisions under pressure.
• If you’ve been responsible for getting a pilot plant built, commissioned, and running — not just designed — you’re probably a strong fit.

Why this role is different

You won’t be handed a perfectly defined problem.
You won’t have the luxury of infinite data.
And you won’t be shielded from accountability.

But you will see your work move from concept to something physical, operating, and real — and you’ll know you played a critical role in getting it there.

If you’re motivated by ownership, execution, and seeing complex systems come to life outside the lab, this role will stretch you in the right ways.

Interested?
Reach out to Thaís Amorim at thais@theonset.com.au for a confidential conversation.

Senior Scientific Software Engineer, 3D Geometry and Visualisation
Sydney | Full time | Hybrid

The Mission
A global medical technology team designs complex physical products that must fit real human anatomy across massive population diversity. This role exists to turn large scale 3D scan data into practical digital tools that engineers actually use.

You are not building a generic platform. You are building internal software that directly shapes how physical products are designed, sized, and validated.

This is where scientific software meets real-world hardware outcomes.

What You’ll Work On
• Owning and evolving an internal digital anthropometry platform used by engineering teams
• Building cross platform desktop applications using Qt for Python
• Developing interactive 3D visualisation tooling with VTK for shape and fit analysis
• Working hands on with meshes, point clouds, geometry, and population level variation
• Implementing backend algorithms and data processing pipelines that support design decisions
• Translating messy engineering workflows into usable, repeatable software tools
• Driving adoption of digital first workflows across multidisciplinary product teams
• Improving architecture, testing, CI/CD, and long term maintainability without over-engineering

What Matters Here
• Strong experience building software for scientific, engineering, or R&D environments
• Deep comfort working with 3D data, meshes, geometry, and visualisation
• Solid Python engineering fundamentals
• Hands on experience with Qt for Python and VTK or equivalent frameworks
• Enough mathematical and statistical grounding to reason about shape variation and populations
• Ability to work directly with engineers, gather requirements, and influence how tools get used

The Type of Engineer Who Thrives
A scientific programmer who likes owning real tools, not abstract platforms. Someone who enjoys working with geometry, visual data, and physical constraints. Comfortable operating as the only dedicated software engineer in a domain heavy team, and confident enough to challenge workflows when the software can do better.

Not a web generalist. Not a ticket taker. Someone who wants their code to shape real products.

Why This Role Matters
Physical product development is slow and expensive when driven by trial and error. Better digital tools reduce iterations, improve upfront decisions, and raise the quality bar across every product cycle. This role directly influences how efficiently and accurately products are designed.

The "What's In It For Me" Bit
• Senior individual contributor role with clear technical ownership
• Long-term platform work, not short-lived features
• High autonomy and direct access to a varied class of engineering stakeholders
• Exposure to applied 3D geometry, anthropometrics, and medical R&D

If you want to build software where geometry, data, and real world fit actually matter, reach out.

Senior Hardware Production Engineer

(AU Citizenship Required)

Sydney | Full-time | Hybrid

The Mission
A senior hardware team in Sydney builds complex electronic systems that must work first time and continue to work at scale.

The PCB designs are largely completed upstream. This role exists to ensure those designs survive manufacturing, supplier variability, and real-world, rugged conditions.

This is where hardware moves from design intent to repeatable production.

What You’ll Work On

• Reviewing high-speed and RF-adjacent PCB designs for production readiness
• Assessing schematics, layouts, and BOMs with a manufacturing and reliability focus
• Working directly with suppliers to validate components, processes, and incoming quality
• Defining inspection and test approaches that catch issues before they scale
• Investigating failures and driving proper root cause analysis and corrective actions
• Feeding lessons learned back into upstream design teams to improve future revisions
• Supporting audits and quality frameworks without turning engineering into paperwork
• Acting as the technical gate between design and volume production

What Matters Here

• Strong experience with high-speed PCB or RF-influenced designsComfort reviewing and challenging existing designs rather than creating them from scratch
• High-speed exposure is essential: multigigabit, high-speed DDR3 or DDR4, and 100GbE Ethernet chops are the unavoidable foundation
• Hands-on experience with Altium schematics and PCB layouts
• Strong understanding of PCB assembly drawings and manufacturing documentation
• Practical use of quality tools such as FMEA, SPC, 8D and root cause analysis
• Experience working with external suppliers and manufacturing partners
• Familiarity with ISO-style quality management systems

The Type of Engineer Who Thrives Here
An engineer who has seen boards fail in production and understands why. Someone who enjoys tightening tolerances, closing feedback loops, and preventing issues before they reach the field. Design-literate, detail-oriented, and comfortable operating without a management title.

Why This Role Matters
The hardware is non-trivial. The environments are unforgiving. Errors are expensive. This role protects the product and the roadmap by ensuring what gets built matches what was intended, every time.

The Opportunity

• Senior individual contributor role with real technical ownership
• Direct influence on how hardware moves into production at scale
• Close proximity to manufacturing, suppliers, and real failure modes
• Competitive salary + super + bonus

If you want to work on hardware where production realities matter as much as design intent, apply directly or reach out to Toby Tank: toby@theonset.com.au