Full job description
Pixalate is hiring a full-time senior AI Engineer (PhD required) to work remotely from Singapore. The role involves bridging AI research and production systems focused on digital safety and fraud detection. Responsibilities include designing multi-agent AI systems, advanced reasoning and compute optimization, and building multimodal AI and knowledge systems. Candidates must have a PhD in Computer Science, AI, Machine Learning or related field, with published research in large language models, agentic AI, multimodal learning, and scalable ML. Technical expertise required includes Python, PyTorch, TensorFlow, LangChain, Hugging Face Transformers, Ray, RAG systems, vector databases, distributed training, and GPU optimization. Strong research skills and experience with MLOps, reinforcement learning, neural architecture search, and production ML systems are essential. Benefits include monthly internet reimbursement, flexible remote work environment, advancement opportunities, team events, and competitive compensation.
What you'll do
- Design and implement multi-agent architectures for autonomous fraud detection and analysis
- Develop sophisticated agent coordination systems using frameworks like LangChain, AutoGen, or custom architectures
- Create tool-integrated AI agents capable of complex reasoning and decision-making
- Research novel approaches to agent safety and alignment in production environments
- Implement state-of-the-art reasoning systems inspired by recent breakthroughs (o1, DeepSeek-R1)
- Optimize inference-time compute allocation for complex analytical tasks
- Develop chain-of-thought and verification mechanisms for high-stakes decision making
- Research novel approaches to scaling reasoning capabilities efficiently
- Build advanced multimodal models for analyzing video, image, text, and behavioral data
- Develop sophisticated RAG (Retrieval-Augmented Generation) architectures including high-performance vector databases and hybrid search systems
- Implement advanced chunking strategies and semantic understanding
- Create context-aware retrieval mechanisms for complex documents
- Research cross-modal learning for fraud pattern detection
Requirements
- PhD in Computer Science, AI, Machine Learning, or related field (or exceptional research track record)
- Published research in peer-reviewed venues demonstrating expertise in Large Language Models and transformer architectures
- Published research demonstrating expertise in Agentic AI, autonomous systems, or multi-agent coordination
- Published research demonstrating expertise in Multimodal learning or computer vision
- Published research demonstrating expertise in Distributed systems and scalable ML
- Expert proficiency in Python and deep learning frameworks (PyTorch preferred, TensorFlow)
- Advanced experience with modern AI frameworks: LangChain, Hugging Face Transformers, Ray
- Experience in agent development and orchestration
- Experience with RAG systems and vector databases
- Experience with distributed training frameworks and GPU optimization
- Strong understanding of transformer architectures and attention mechanisms
- Strong understanding of reinforcement learning and reward modeling
- Strong understanding of neural architecture search and AutoML
- Strong understanding of MLOps and production ML systems
- Track record of novel algorithm development and innovation
- Experience with large-scale experimentation and ablation studies
- Proficiency in research tools: Weights & Biases, MLflow, TensorBoard
- Strong theoretical foundation in optimization, statistics, and linear algebra
Tech stack
PythonPyTorchTensorFlowLangChainAutoGenHugging Face TransformersRayRAG systemsvector databasesdistributed training frameworksGPU optimizationWeights & BiasesMLflowTensorBoard
Benefits
Monthly internet reimbursementCasual, remote work environmentHybrid, flexible hoursOpportunity for advancementFun annual team eventsBeing part of a high-performing teamExtremely competitive compensation