In-Demand Senior machine learning engineer Jobs in Parramatta, Nsw

Senior Applied Scientist
NinjaTech AI —Sydney NSW
- Full-time
- Doctoral degree
- Computer Science
- Research
Senior Gemini Platform Engineer
Accenture —Sydney NSW
- Full-time
- Management
- ERP systems
- SQL
Senior AI Engineer
MYOB —Sydney NSW
- Hybrid work
- Computer Science
- Master's degree
- AWS
- Parental leave
Senior Director, Digital
Alvarez and Marsal —Sydney NSW
- Full-time
- Doctoral degree
- Engineering
- Master's degree
Senior Solution Architect
AMP Limited —Sydney NSW
- Full-time
- Hybrid work
- Azure
- Salesforce
- AWS
- Employee assistance program
- Employee discount
14d
Senior Engineer - ML Systems (AI Products)
Xero —Sydney NSW
- Full-time
- Hybrid work
- Systems design
- Research
- Master's degree
Senior AI Engineer (AI Innovation Office)
Westpac —Sydney NSW
- Full-time
- Hybrid work
- Management
- Master's degree
- Machine learning
8d
Principal AI Scientist
NAB —Sydney NSW
- Full-time
- AI
- Communication skills
9d
Principal Architect – HR Technology
Westpac Group —Sydney NSW
- Full-time
- Hybrid work
- Management
- Human resources
- AI
Staff Designated Support Engineer
Databricks —Sydney NSW
- Azure
- SQL
- AWS
12d
Senior ML/AI Engineering Consultant (expression of interest)
DiUS —Sydney NSW
- Hybrid work
- Azure
- AWS
- Machine learning
Quick Apply
2d
Senior Software Engineer - Database Engineering
Snowflake —Barangaroo NSW
- Full-time
- Computer Science
- Engineering
- Master's degree
Senior Software Engineer II
RELX —North Sydney NSW
- Full-time
- Computer Science
- Data analysis skills
- Analysis skills
- Health insurance
- Employee assistance program
Senior Manager, Data Analytics and AI Consulting
EPAM Systems, Inc. —Sydney NSW
- Azure
- SQL
- AWS
Sr Security Engineer, Region Services
Amazon Web Services Australia Pty Ltd —Sydney NSW
- Full-time
- AWS
- Scripting
- AI
- Health insurance
- Employee assistance program
Associate Systems Engineer
Amazon Support Services Pty Ltd —Sydney NSW
- Full-time
- Computer Science
- Software troubleshooting
- AWS
PCI Electrical Engineer (Controls and Automation)
James Hardie —Rosehill NSW
- Full-time
- Microsoft Excel
- Analysis skills
- Electrical experience
- Parental leave
- Employee assistance program
Quick Apply
2d
Principal Data Engineer
Corporate Services —Sydney Western Suburbs NSW
- $154,231 - $178,369 a year
- Full-time
- Azure
- SQL
- AI
21h
Senior Manager Data Science & AI Global Markets
Commonwealth Bank —Sydney NSW
- Full-time
- SQL
- Machine learning
- AI
8d
Software Engineer - API
Nuix —Sydney NSW
- Hybrid work
- Management
- Computer Science
- No degree
9d

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Senior Applied Scientist

NinjaTech AI
Sydney NSW

Apply Now

Job Details

Full-time

Qualifications

Law
Doctoral degree
Computer Science
Deployment
Data structures
Research
Master's degree
Analysis skills
Machine learning
Deep learning
Natural language processing
AI
Software architecture

Full Job Description

Come build the intelligence behind autonomous AI employees.

At NinjaTech AI, we’re building AI systems that do more than answer questions. Our agents plan, reason, use tools, operate computers, collaborate with humans, and execute complex work over long periods of time. As a Senior Applied Scientist, you’ll help push the capabilities of these systems forward through applied research in reinforcement learning, LLM training, model optimization, natural language systems, and multimodal AI.

This is a highly hands-on role for someone who wants to take cutting-edge research and make it work at production scale. You’ll work closely with our Chief Science Officer, engineering and product leaders, ML engineers, and software developers, with significant ownership over the models and systems that power Ninja.

What You’ll Own

Research, prototype, train, evaluate, and deploy advanced ML and LLM systems, with a particular focus on reinforcement learning and agentic AI.
Develop and apply state-of-the-art RL techniques, including RLHF and related approaches, to improve model reasoning, reliability, accuracy, and task performance.
Design large-scale training and evaluation datasets, including synthetic data generation, statistical modeling, and data-mining techniques.
Train, fine-tune, distill, quantize, and optimize large language models for production environments.
Build high-performance multi-GPU training and inference pipelines using modern acceleration and mixed-precision techniques.
Develop rigorous evaluation frameworks and experimentation systems to measure model quality, behavior, and performance.
Design and run experiments, including A/B tests, to validate model and product improvements.
Build robust, scalable production ML systems and write high-quality code primarily in Python and Rust.
Optimize algorithms and systems for latency, throughput, memory efficiency, and cost.
Advance NinjaTech’s natural-language and speech capabilities, including NLU/NLG, automatic speech recognition, TTS, and STT.
Translate novel academic research into practical capabilities that can be shipped to users.
Continuously evaluate emerging research, models, and techniques and determine where they can meaningfully improve Ninja’s AI systems.

What We’re Looking For

Master’s degree or PhD in Computer Science, Machine Learning, Applied Mathematics, Statistics, Engineering, or a related quantitative field.
Significant experience building end-to-end machine learning or deep learning systems, from data and experimentation through training and production deployment.
Deep understanding of machine learning, deep learning, probability, statistics, optimization, and algorithms.
Strong experience with reinforcement learning methods such as PPO, actor-critic methods, RLHF, or related approaches.
Hands-on experience training, fine-tuning, evaluating, and deploying transformer-based language models.
Strong proficiency in Python; experience with Rust is highly valued.
Deep experience with PyTorch and modern ML tooling and libraries.
Experience with distributed and multi-GPU training, mixed precision, model distillation, quantization, ONNX, and inference optimization.
Experience in one or more of the following areas: natural language understanding, natural language generation, information retrieval, question answering, knowledge extraction, text classification, or speech/audio processing.
Strong understanding of software architecture, data structures, algorithms, database systems, and runtime/performance analysis.
Ability to move comfortably between research and engineering, from exploring a new technique in a paper to shipping a reliable production implementation.
Strong analytical instincts and the ability to independently investigate ambiguous problems, form hypotheses, run experiments, and make evidence-based decisions.

At NinjaTech AI, you won’t be optimizing a small component of a mature system. You’ll help shape the core intelligence of an autonomous AI platform and turn advances in AI research into capabilities used by real customers.

Apply Now

Refine Your Search

senior machine learning engineer jobs in parramatta, nsw

Senior Applied Scientist

Senior Gemini Platform Engineer

Senior AI Engineer

Senior Director, Digital

Senior Solution Architect

Senior Engineer - ML Systems (AI Products)

Senior AI Engineer (AI Innovation Office)

Principal AI Scientist

Principal Architect – HR Technology

Staff Designated Support Engineer

Senior ML/AI Engineering Consultant (expression of interest)

Senior Software Engineer - Database Engineering

Senior Software Engineer II

Senior Manager, Data Analytics and AI Consulting

Sr Security Engineer, Region Services

Associate Systems Engineer

PCI Electrical Engineer (Controls and Automation)

Principal Data Engineer

Senior Manager Data Science & AI Global Markets

Software Engineer - API

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