
Lead Engineer, Applied ML (Remote within Canada)
Calliere · Remote
Weak hiring record · median 93 days open
All reasons
- Open 68 days
- 86% of this employer's openings are over 60 days old
- No location stated
In its favour
- Still listed on the employer's own board
- Publishes a salary range
This is a remote position.
Company
Confidential — an early-stage, founder-led technology company (full details shared with shortlisted candidates)
Location
Canada (EST preferred) Type
Full-time — also open to 1-year contractors
Reports to
Founder / CEO Compensation
Approx. $220–$450k CAD base + equity options for full-time hires
About the Role
Our client is an early-stage, founder-led company building AI-driven analytics for multi-sensor data, working across commercial, regulatory, and government/defense programs. Their platform has already been validated in real operational environments with early customers, and they're now extending it into new defense, security, and commercial applications.
They're hiring a Lead Engineer with applied ML depth. You'll work directly with the founder to build the company's technical capability from the ground up. This is a true foundational role with a lot of autonomy.
Your first project extends the platform into a new AI-driven decision-support system for a defence-sector client. It fuses multi-domain sensor data (radio-frequency, infrared, and visual-band), applies ML-based signal classification, and delivers a real-time visualization and decision-support interface. You'll be the primary technical builder across data ingestion, model development, dashboard, and system integration, working alongside a small set of specialist subcontractors (human factors, independent model review, security audit) who validate and stress-test what you build.
Past that first project, you'll help shape the company's engineering practices and pick up new work as the project portfolio grows.
What You'll Own
Data pipeline & fusion
- Stand up ingestion connectors for a range of sensor and data sources over common transport protocols (e.g. REST, gRPC, MQTT)
- Define a single unified schema and metadata model; identifiers, timestamps, frequency, location, calibration
- Align streams across time and space, and add automated quality checks that catch dropouts, outliers, and malformed records
Applied ML
- Build and train both supervised and unsupervised models for signal classification and anomaly detection
- Tune inference for near-real-time latency. This entails; profiling, quantization, pruning, and similar techniques.
- Produce the evaluation evidence (accuracy, precision/recall, false-positive rates) needed to support independent third-party model review
Visualization & dashboard
- Build a live, GPU-accelerated dashboard that renders fused data with overlays and per-result confidence scoring.
- Design adaptive visual layers that stay responsive at near-real-time refresh under full data load.
- Fold in usability findings from an external human-factors reviewer.
Systems integration
- Bring the pipeline, models, and dashboard together into one modular, containerized system exposed through secure APIs.
- Support deployment and scenario-based testing inside client test environments.
- Partner with an external security auditor to close out findings ahead of deployment.
Requirements
What We're Looking For
- Strong full-stack engineering background. You are comfortable owning a system end to end.
- Applied ML experience: building, training, and deploying models in production or near-production settings, not just research or prototyping.
- Experience with real-time or near-real-time data pipelines and systems integration.
- Cloud infrastructure experience (AWS preferred, reflecting the current stack) and containerized deployment.
- Comfortable operating as the sole technical owner, with subcontractor partners handling independent review and validation rather than a peer engineering team.
- Bonus: signal processing, RF/sensor data, or defense/regulatory technical environments.
- Bonus: Dual citizenship (Canada & USA).
Skills
- Machine Learning
- gRPC
- MQTT
- AWS
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