Founding Machine Learning Engineer
Remotefull-timePosted 10mo ago
About the role
A founding technical role focused on shaping the core AI model infrastructure, architecture, and strategies for a new consumer AI product in a stealth startup environment.
Responsibilities
- Build end-to-end training pipelines: data → training → eval → inference
- Design new model architectures or adapt open-source frontier models
- Fine-tune models using state-of-the-art methods (LoRA/QLoRA, SFT, DPO, distillation)
- Architect scalable inference systems using vLLM / TensorRT-LLM / DeepSpeed
- Build data systems for high-quality synthetic and real-world training data
- Develop alignment, safety, and guardrail strategies
- Design evaluation frameworks across performance, robustness, safety, and bias
- Own deployment: GPU optimization, latency reduction, scaling policies
- Shape early product direction, experiment with new use cases, and build AI-powered experiences from zero
- Explore frontier techniques: retrieval-augmented training, mixture-of-experts, distillation, multi-agent orchestration, multimodal models
Qualifications
- Strong background in deep learning and transformer architectures
- Hands-on experience training or fine-tuning large models (LLMs or vision models)
- Proficiency with PyTorch, JAX, or TensorFlow
- Experience with distributed training frameworks (DeepSpeed, FSDP, Megatron, ZeRO, Ray)
- Strong software engineering skills — writing robust, production-grade systems
- Experience with GPU optimization: memory efficiency, quantization, mixed precision
- Comfortable owning ambiguous, zero-to-one technical problems end-to-end
Skills
Required:Deep LearningLarge Model TrainingPyTorch, JAX, TensorFlowDistributed Training FrameworksGPU Optimization
Benefits
- Extreme ownership and autonomy from day one - you define and build key model systems
- Founding-level influence over technical direction, model architecture, and product strategy
- Remote-first flexibility
- High-impact scope—your work becomes core infrastructure of a global consumer AI product
- Competitive compensation and performance-based bonuses
- Backing of a profitable US$2B group, with the speed of a startup
- Insurance coverage, flexible time off, and global travel insurance
- Opportunity to shape a new global AI product from zero
- A small, senior, high-performance team where you collaborate directly with founders and influence every major decision
Last updated Dec 6, 2025. Interested? Apply on the company site.
About Bjak
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