Junior Machine Learning Engineer (8x Roles)

Rokt is a hyper-growth ecommerce leader, unlocking real-time relevance in the moments that matter most. Our AI Brain and ecommerce Network power 7.5 billion+ transactions p/y and are trusted by thousands of leading companies globally (Expedia, Best Buy, Lowe’s, Walgreens, Ticketmaster, Venmo, Apple, Disney+, Uber Eats, Capital One) and in Australia (The Iconic, David Jones, Dan Murphy's, Dominos, Foxtel, Amazon, Afterpay, PayPal)

We are a team of builders helping smart businesses innovate, meet customer needs, and generate incremental revenue. Rokt’s economic edge unleashes a world of possibilities for growth and innovation.

We are hiring 8x Junior Machine Learning Engineers
Target start dates - late 2025/early 2026.
Target compensation for these roles includes a fixed annual salary of $130,000 - $150,000 (including superannuation). In addition, you will receive a world-class benefits package and a stake in Rokt through our employer equity grant plan. Equity grants are issued in good faith, subject to company policies, board approval, and individual eligibility.
The Roles
These roles are an entry pathway into Machine Learning model research and development for high-achieving graduates or career transitioners from quantitative fields (Mathematics, Statistics, Data Science, Computer Science, or similar).
You would be joining the Rokt Brain Relevancy team in Sydney. Our focus is delivering the most relevant experience for every user in the transaction moment, harnessing advanced ML and real-time data to optimise every offer and interaction to maximise value for customers, partners, and advertisers. We build adaptive and transparent models that continuously learn and improve.
Focus areas for the team include personalisation & relevance models, selection & scoring algorithms, exploration vs. exploitation tradeoffs, cold start & smart bidding models, predictive & agentic models and statistical modeling & data enrichment.

What You’ll Do

• Frame & Solve ML Problems: Work with colleagues to understand priorities, define ML problems, and design solutions that drive business outcomes.
• Build & Operationalise ML Systems: Develop and productionize end-to-end ML pipelines—including data processing, orchestration, modeling, and continuous deployment.
• Research & Experiment: Stay current with emerging ML technologies and prototype new models, validating them through experimentation (offline and online).
• Accelerate Development with AI: Leverage AI-driven tools to implement clean, well-tested code, focusing on creative problem-solving and quality.
• Collaborate & Innovate: Work closely with diverse teams, share knowledge, and contribute to a culture of learning.
• Drive Business Impact: Build capabilities that create personalized experiences and unlock incremental revenue for leading ecommerce brands.

Benefits:

• Hyper-Growth = Fast Progression: Rokt is a rapidly growing tech leader, which means huge opportunities for your career advancement, learning, and taking on bigger responsibilities quickly.
• Culture of Builders: Work with a smart, humble, and bold team that shares a “builder” DNA – we love to innovate, take risks, and turn ambitious ideas into tangible results. We win as a team and learn from every experiment.
• Ownership & Impact: Every Rokt’star (employee) has a voice and real equity in the company. You’ll have autonomy to make decisions, drive projects, and see the direct impact of your work on millions of users.
• World-Class Benefits & Support: Join a people-first culture with transparent career paths, continuous development (LevelUp training, mentorship), and great perks (equity grants, catered lunches, global offices, and more) that empower you to do your best work.
• Build the Future of AI in Ecommerce: Be at the forefront of AI-driven transformation in a company that’s pioneering how brands engage customers in the “moment that matters” during online transactions.

About The Benefits:

We leverage best-in-class technology and market-leading innovation in AI and ML, with all of that being underlined by building and maintaining a fantastic and inclusive culture where people can be their authentic selves, and offering a great list of perks and benefits to go with it:

• Become a shareholder. Every Rokt’star gets equity in the company
• Enjoy daily catered lunch, drinks, and healthy snacks. 
• Monthly wellness and phone allowance, generous yearly technology allowance
• Extra leave (bonus annual leave, sabbatical leave etc.)
• See the world! Trip to the Bahamas or New York for Induction/Global Kickoff (depending on start date).

We believe we’re better together. We love spending time together and are in the office most days (teams are in the office 4 days per week).

We at Rokt choose to create a company that is as diverse and inclusive as the world we live in by attracting, growing & keeping the best talent. Equal employment opportunities are available to all applicants without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If this sounds like a role you’d enjoy, apply here, and you’ll hear from our recruiting team.

Note: The first stage of the recruitment process for this role is to complete a 15-minute online aptitude test as well as an employee personality profile assessment, which will be sent out to your application email. Successful candidates will be contacted to discuss the next steps.

Requirements

• You’re completing or have completed a degree in Mathematics, Statistics, Computer Science, Data Science, or a related quantitative field (Or have equivalent industry experience)

• You have a strong mathematical foundation (e.g., probability, statistics, linear algebra) and familiarity with programming (Python).
• You’re curious, eager to learn, and passionate about AI/ML - demonstrated through academic projects, research, Kaggle competitions, personal initiatives, or industry experience.
• You enjoy breaking down complex problems, thinking analytically, and collaborating with others.
• You’re motivated by impact, value feedback, and thrive in a fast-paced, innovative environment.

Benefits

We leverage best-in-class technology and market-leading innovation in AI and ML, with all of that being underlined by building and maintaining a fantastic and inclusive culture where people can be their authentic selves, and offering a great list of perks and benefits to go with it:

• Become a shareholder. Every Rokt’star gets equity in the company
• Enjoy daily catered lunch, drinks, and healthy snacks. 
• Monthly wellness and phone allowance, generous yearly technology allowance
• Extra leave (bonus annual leave, sabbatical leave etc.)
• See the world! Trip to the Bahamas or New York for Induction/Global Kickoff (depending on start date).
  

Why Rokt?

• Hyper-Growth = Fast Progression: Rokt is a rapidly growing tech leader, which means huge opportunities for your career advancement, learning, and taking on bigger responsibilities quickly.
• Culture of Builders: Work with a smart, humble, and bold team that shares a “builder” DNA – we love to innovate, take risks, and turn ambitious ideas into tangible results. We win as a team and learn from every experiment.
• Ownership & Impact: Every Rokt’star (employee) has a voice and real equity in the company. You’ll have autonomy to make decisions, drive projects, and see the direct impact of your work on millions of users.
• World-Class Benefits & Support: Join a people-first culture with transparent career paths, continuous development (LevelUp training, mentorship), and great perks (equity grants, catered lunches, global offices, and more) that empower you to do your best work.
• Build the Future of AI in Ecommerce: Be at the forefront of AI-driven transformation in a company that’s pioneering how brands engage customers in the “moment that matters” during online transactions.
  

We believe we’re better together. We love spending time together and are in the office most days (teams are in the office 4 days per week).

We at Rokt choose to create a company that is as diverse and inclusive as the world we live in by attracting, growing & keeping the best talent. Equal employment opportunities are available to all applicants without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If this sounds like a role you’d enjoy, apply here, and you’ll hear from our recruiting team.

Note: The first stage of the recruitment process for this role is to complete a 15-minute online aptitude test as well as an employee personality profile assessment, which will be sent out to your application email. Successful candidates will be contacted to discuss the next steps.