Senior Software Developer – Artificial Intelligence​/Machine Learning Specialist

Position: Senior Software Developer – Artificial Intelligence / Machine Learning Specialist
Overview  Chaac Technologies is seeking a Senior Artificial Intelligence / Machine Learning Developer to design, train, optimize, and deploy production-grade AI systems, with a strong focus on computer vision, edge inference, and mission-critical deployments.
This role is defense-first, but not defense-only. You will work on real-world AI systems used in defense, public safety, transportation, and high-risk industrial environments, where robustness, performance, and reliability matter more than demos.
You will collaborate closely with our CTO and R&D teams to take AI models from data to deployment, including training pipelines, optimization, and operational rollout on servers and edge devices.
What You’ll Do   Design, train, and optimize machine learning and deep learning models, primarily for computer vision
Work with modern neural network architectures, including transfer learning, data augmentation, and hyperparameter tuning
Configure and manage training pipelines (batch size, learning rate, epochs, anchors, image resolution)
Monitor and interpret metrics; apply early stopping, checkpointing, and resume training
Prepare and manage large datasets, including annotation workflows (e.g. Label Studio)
Evaluate models using standard metrics (confusion matrix, F1-score, IoU)
Deploy models using Docker and Kubernetes, including conversion to ONNX
Support inference pipelines on edge and resource-constrained devices
Document training processes and collaborate with engineering and product teams
Core Technical Skills   Expert-level Python
Py Torch
Ultralytics YOLO
Familiarity with ONNX
GPU training and optimization
Docker & Kubernetes
Git, Bash scripting
Experience managing large datasets
Degree in Computer Science, AI/ML, or equivalent professional experience
5+ years of hands-on experience in ML / AI engineering
Proven experience deploying ML models into production environments
Nice-to-Have   Custom model architectures
Basic Elixir knowledge
Model compression, pruning, or quantization
Multi-modal AI (vision + thermal + acoustic)
Synthetic data or photogrammetry
MLOps pipelines and lifecycle management
This role is for you if   You’ve trained models that failed, debugged them, retrained them, and shipped them anyway
You’ve worked with real datasets, not just clean academic benchmarks
You’re comfortable owning the full ML lifecycle: data → training → evaluation → deployment
You care about performance, robustness, and reproducibility, not just accuracy scores
You maintain and update current backend deployments
You enjoy working close to hardware, constraints, and real operational requirements
This role is not for you if   You only want to do research without production responsibility
Your experience is limited to notebooks and proof-of-concept demos
You avoid deployment, monitoring, or operational constraints
You’re looking for a junior or heavily guided role
Benefits   Competitive compensation and flexible work structure
Opportunity to work on cutting-edge national security and defense AI initiatives
A Senior-level position with architectural and scientific influence
Collaboration with an elite, multidisciplinary team across AI, defense tech, and R&D
Basic annual vacation of three weeks
Six days of sick leave or personal days per year, non-cumulative
One extra day off for your birthday
Monthly public transit pass reimbursement (based on Montreal rates)
Up to $500/year reimbursement for gym, sports, or other physical activities
Flexible 40-hour week, remote or Old Montreal office, with occasional travel
Group insurance and health benefits
About Us  Chaac Technologies is a Montreal-based technology company specializing in advanced AI-driven, immersive, and autonomous systems for defense, public safety, transportation, and high-risk industrial environments.
We design and deploy mission-critical solutions that combine artificial intelligence, computer vision, virtual reality, and UAV/drone-enabled systems to support training, situational awareness, and operational decision-making.
Chaac works closely with defense and security stakeholders to develop next-generation training solutions, intelligent perception tools, and operational support technologies,…