Senior Machine Learning Backend/Infrastructure Engineer

About the role

Machine learning infrastructure underpins all of our data products, and enables R&D on highly complex systems with the potential to unlock untapped value. We are looking for a Senior Machine Learning Infrastructure Engineer who can scale our market-leading behaviour models, enable the execution of scientific endeavors in a deep-learning dominant environment, and extend the way we apply machine learning to all areas of the business. We’re looking for people who are hungry to make an impact, are comfortable in a fast-paced environment, and love helping the people around them succeed.

We are looking for a Senior Machine Learning Infrastructure Engineer who can scale our market-leading behaviour models, grow our team of data scientists, and extend the way we apply machine learning to all areas of the business. We’re looking for people who are hungry to make an impact, are comfortable in a fast-paced environment, and love helping the people around them succeed.

What your day could look like:
• Design and maintain scalable ML pipelines for training, validation, and inference
• Build and optimize model serving infrastructure with proper monitoring, logging, and alerting
• Implement MLOps practices including automated testing, deployment, and rollback systems
• Manage data pipelines and ensure data quality, lineage, and governance
• Optimize model performance and resource utilization across different environments
• Collaborate with data scientists to productionize models and research experiments
Technical Requirements:
• Strong proficiency in cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes)
• Experience with ML frameworks (TensorFlow, PyTorch) and serving systems
• Knowledge of orchestration tools
• Proficiency in Python, SQL, and Infrastructure as Code (Terraform)
• Experience with monitoring and observability tools
• Understanding of CI/CD pipelines and version control systems
Infrastructure Skills:
• Database management (both SQL and NoSQL) and data warehousing solutions
• Stream processing and real-time data systems (Kafka, Spark Streaming)
• Model registry and experiment tracking systems
• Performance optimization and cost management in cloud environments

What we’re looking for:
• A comprehensive understanding of the fundamentals and design systems behind building reliable, scalable and fit-for-purpose machine learning models and infrastructure
• Strong experience in Python and familiarity with development in a backend tech stack
• A strong understanding of data engineering best practices and AWS infrastructure
• A confident understanding of data engineering best practices and AWS infrastructure
• Importantly, we are looking for someone who is passionate about what they do and eager to learn

Why our team loves working at Halter

At Halter, we’re committed to creating an environment where people thrive. We offer unlimited paid annual leave, as well as additional wellness days. Each year, every team member receives a $1,000 self-development budget to invest in whatever fuels their personal growth.

We offer six months of fully paid leave for primary caregivers and four weeks of fully paid leave for secondary caregivers, along with a range of additional family-friendly benefits. To support your wellbeing, we offer subsidised health insurance through Southern Cross.

And finally, everyone at Halter is an owner. Every employee is part of our stock ownership plan; when we succeed, you share in that success.

Our office-first approach

Being office-first is a core pillar of our culture. We believe in-person connections are key to driving your own growth, learning, impact, and building genuine long-lasting relationships.

We’re office first, not office only. This means that working from the office every day is our default setting, but we flex when needed. Your growth, learning, and impact are truly unlimited here, and a big part of that comes from being together, solving problems, innovating, building context, and constantly learning from each other.

We have a state-of-the-art, dog-friendly office in the heart of Auckland City and a test farm in Morrinsville. Delicious snacks and drinks are readily available.

About Halter

At Halter, we’re on a mission to enable farmers and graziers to run the most productive and sustainable operations. Our customers are using Halter to break free from the time-intensive constraints of conventional practices and revolutionizing grazing with Halter. People join Halter to do meaningful work. Our team out-think, out-work and out-care. We’re committed to delivering real change in the world. We’re backed to deliver on a mission that matters by Tier 1 investors including Bessemer Venture Partners, DCVC, BOND, Blackbird, Promus Ventures, Rocket Lab’s Peter Beck and Icehouse Ventures.

Join our team

If this opportunity sounds like you, please apply below by sending your cover letter explaining why you’re excited about this role and working at Halter, along with your CV.

If you think you have what it takes but don’t necessarily meet every requirement on this job description, please still get in touch. We’d love to chat to see if you’ll be an epic fit!

Feel free to check out the careers page for more information on working at Halter and don't forget to follow us on LinkedIn & Instagram.