Senior Machine Learning Engineer

Roman Health Pharmacy LLC; Toronto; On-site; CAD 100,000 - 150,000; Full time

Job summary

A leading company in AI product development is seeking a Senior ML Engineer to design scalable infrastructure and mentor team members. The role requires strong coding skills in Python, proficiency in SQL, and expertise in machine learning frameworks. This position offers a unique opportunity to contribute to innovative projects in a collaborative environment, backed by a human-first culture that prioritizes employee well-being and career growth.

Benefits

Generous paid leave

Health insurance and dental reimbursement

Wellbeing and sports programs

Employee Share Plan

Flexible working

Career development opportunities

Qualifications

• Strong coding and system design skills in Python or similar languages.
• Excellent SQL proficiency and distributed processing knowledge.
• Exceptional communication skills for explaining technical concepts.

Responsibilities

• Lead design of AI research and production infrastructure.
• Mentor and develop team members in AI product development.
• Manage technical debt and improve data quality.

Skills

Python

SQL

communication

system design

mentoring

machine learning

Tools

MLFlow

Tensorflow

PyTorch

Airflow

AWS EMR

Job description

Our Purpose

At Xero, we’re here to help you supercharge your business. We do this by automating routine tasks, surfacing actionable insights and connecting businesses with the right data, advisors and apps. When that happens, we’re not only making life better for small business, we’ll be building a stronger economy that can change the world.

About The Team

The AI Products group exists to collaboratively build products that use AI and ML to reduce toil and deliver the right insight at the right time. Working within the Data & Science team, you will join a diverse, globally distributed team of scientists, engineers, product managers, and analysts who help Xero turn data into beautiful, insightful products.

ML engineers design and build the infrastructure and services that power AI products that serve millions of customers every day. They also work closely with Applied Scientists through the research and development process to create harnesses and interfaces to safely take models from research to production environments. As a Senior ML Engineer, you will lead delivery programs that push the boundaries of what's possible with today's technology.

About The Role

• Lead the design of our AI research and production infrastructure and services, ensuring that our services scale while preserving flexibility for research teams
• Own our strategy for managing the growth rate of technical debt and costs across our stack
• Make sure we're solving the right problems with the right methods
• Share knowledge with colleagues and lift the bar for the AI Products team
• Mentor and develop members of your team, increasing our capability to build and operate intelligent, data-driven products and services in our core customer offerings
• Work with teams across Xero to improve the quality and usability of data

What you will bring with you

• Strong coding and system design skills in Python or another language used in web scale data and AI applications.
• SQL proficiency with a strong grasp of distributed processing principles, including data and machine learning (e.g. Spark, Dask).
• Exceptional written and verbal communication skills, enabling effective explanation of technical concepts to both technical and business audiences.
• Proven ability to establish practical standards and mentor junior machine learning engineers.
• Eagerness to learn and apply emerging Large Language Model (LLM) technologies to product innovation.
• Experience with established AI frameworks (e.g., MLFlow, Tensorflow, PyTorch), data orchestration tools (e.g., Airflow, Prefect), and an understanding of how to manage distributed data processing workloads (e.g., AWS EMR) are highly valued.

Why Xero?

Diversity of people brings diversity of thought, and we like that. Our human-first culture of respect, fairness, and inclusion is what helps Xeros thrive and work and beyond, and that includes our candidates. Research has shown that women and underrepresented groups are less likely to apply to jobs unless they meet every single competency or experience, but you could be just the right person for this role. If you are excited about working at Xero, but your past experience doesn't align perfectly, we encourage you to apply anyway.

Offering very generous paid leave to use however you’d like (plus statutory holidays!), dedicated paid leave to care for your physical and mental wellbeing as well as an Employee Assistance Program to access mental health care for you and your family, health insurance and dental reimbursement with vision allowances, a healthcare spending account, fertility and family forming financial support, wellbeing and sports programmes, employee resource groups, 26 weeks of parental leave for primary caregivers, an Employee Share Plan, beautiful offices with shared meals, flexible working, career development, and many other benefits that reflect our human value, you’ll do the best work of your life at Xero.