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Nicholas LeeNL

Nicholas Lee

AI/ML Engineer & Architect

€219/day
San Mateo, US
8-15 years

Average response time: 1 hour

About Nicholas

AI/ML architect and engineer with 8+ years of experience designing and scaling intelligent systems across NLP, LLMs, multi-agent collaboration, and autonomous AI ecosystems.
Expert in architecting end-to-end AI solutions using Python, PyTorch, vector databases, and modern ML tooling. Proven record in deploying production-ready AI platforms that support agent orchestration, contextual memory, decision-making, and continuous learning.
Adept at leading research and engineering teams in remote-first environments and driving technical strategy across AI infrastructure.
  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • MindForge AI
    Lead AI/ML Architect
    January 2021 - April 2025 (4 years and 3 months)
    California, USA
    • Architected an end-to-end AI agent framework for enterprise document processing, increasing automation coverage by 62% across legal and healthcare domains.
    • Led fine-tuning of LLMs (e.g., LLaMA, GPT-J) using domain-specific datasets, resulting in a 41% gain in domain comprehension benchmarks.
    • Developed contextual memory and retrieval-augmented generation pipelines using LangChain + Weaviate, cutting average query resolution time by 38%.
    • Designed and deployed AI safety layers for tool-using agents, integrating fail-safe loops and task retries to reduce critical failures by 45%.
    • Integrated streaming pipelines for continuous agent interaction logging and performance feedback loops using Kafka + Prometheus.
    • Built agent testing sandbox for memory replay and goal chaining verification, enhancing pre-deployment confidence by 85%.
    • Collaborated with DevOps to deploy agents using Docker and Kubernetes, improving horizontal scaling under multi-user loads.
    • Prototyped new inference pipelines with OpenAI Function Calling and Anthropic Claude, supporting dynamic tool orchestration.
    • Authored internal architecture documentation and training playbooks, improving onboarding efficiency by 30%.
    • Drove the adoption of hybrid fine-tuning strategies (LoRA + QLoRA) to reduce compute cost without compromising task accuracy.
    Python software architect Apache Kafka DevOps OpenAI
  • Fluence Labs
    AI Agent Systems Engineer
    April 2018 - November 2020 (2 years and 7 months)
    California, USA
    • Engineered peer-to-peer autonomous agent services on Fluence's decentralized compute protocol, enabling trustless task execution across 1,200+ nodes.
    • Designed AI-based verification layers for on-chain task result auditing, improving computational integrity and reducing bad actor risk by 48%.
    • Integrated LLMs with Fluence's Aqua language to create self-verifying agent flows for smart contract governance and DAO automation.
    • Developed off-chain contextual data fetchers and vector indexing services to power memory for long-running AI agents in Web3 dApps.
    • Optimized cryptographic proof workflows and reduced interaction time between agent layers and relay nodes by 35%.
    • Contributed to open research on decentralized agent consensus algorithms and self-healing compute paths.
    • Implemented token-based AI function pricing models with stake slashing mechanics to incentivize high-quality computation.
    • Wrote robust developer tooling for agent simulation and message tracing, increasing debugging efficiency by 60%.
    • Supported cross-chain smart contract orchestration using Polkadot bridges and EVM-compatible agents.
    • Presented technical architecture and security model in Devcon and ETHGlobal sessions, strengthening ecosystem engagement.
    Infra as Code LLM Pytorch DevOps Blockchain
  • CypherCore AI
    Machine Learning Developer
    May 2016 - February 2018 (1 year and 9 months)
    California, USA
    • Developed reinforcement learning algorithms for autonomous task planning in multi-agent robotic environments.Collaborated with a cross-functional team of 8 developers and UI/UX designers to optimize the user interface, resulting in a 40% reduction in transaction processing time and a 20% increase in user satisfaction ratings based on feedback surveys.
    • Fine-tuned BERT-based instruction parsers to achieve 92% + accuracy in cross-domain task resolution with natural language inputs.
    • Built large-scale simulation frameworks in PyTorch and OpenAI Gym, supporting continuous agent learning.
    • Integrated computer vision pipelines with object recognition and environment mapping using YOLOv5 + depth sensors.
    • Deployed distributed training jobs on AWS with autoscaling and checkpointing, improving training efficiency by 40%.
    • Applied advanced attention mechanisms to improve temporal state understanding for long-horizon planning agents.
    • Partnered with product teams to deliver embedded AI solutions in field-ready hardware for logistics partners.
    Infra as Code Python Pytorch DevOps YOLO

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Education

  • Bachelor of Science
    TMC Academy
    2016
    Bachelor of Science

Skill set

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