JV

Justin Velasco

Available to hire

I’m Justin Velasco, an experienced Machine Learning and Full Stack Engineer focused on building production-ready AI systems.

About

I’m Justin Velasco, an experienced Machine Learning and Full Stack Engineer focused on building production-ready AI systems. Over the past decade, I’ve designed and deployed conversational AI chatbots, retrieval-augmented generation (RAG) workflows, and scalable backend architectures across healthcare, insurance, and e-commerce—helping improve accuracy, response times, and operational efficiency.

I also enjoy taking end-to-end ownership: engineering ML pipelines, automating continuous learning from feedback, and integrating modern cloud stacks (AWS/GCP, Docker, Kubernetes, and CI/CD) to deliver reliable services. From LLM-based knowledge systems to AI image generation platforms and real-time analytics, my goal is to turn advanced models into practical, high-impact products users can trust.

  • 11 years' experience
  • Joined October 2026

Languages

  • EnglishFluent
  • JapaneseAdvanced

Industry experience

  • Healthcare
  • Financial Services
  • Software & Internet

Work experience· 6 roles

Machine Learning Engineer · ArcadiaNov 2023 – Present · 3 yrs 1 mo

Leveraged Google BigQuery and Gemini AI federated learning capabilities to integrate multiple data sources and improve RAG document retrieval and synthesis accuracy by 15%. Developed REST vector store services to abstract text embeddings from users. Accelerated ML model deployment by integrating Kubeflow for knowledge graph construction and document information retrieval. Integrated Gemini AI models into RAG workflows for advanced NLP tasks, improving response quality and contextual understanding in chatbots.

Senior Machine Learning Engineer, Full Stack Engineer, Generative AI Expert · Vistendo Nov 2023 – Apr 2025 (Arcadia, California)Nov 2023 – Apr 2025 · 1 yr 6 mos

Designed and built conversational chatbots for healthcare and insurance, improving accuracy by 15% by integrating advanced LLMs and frameworks (React/Next.js, Django, Flask) with Pinecone vector databases. Engineered AWS SageMaker-based ML/IoT pipelines for health monitoring, improving storage efficiency in S3 and supporting incremental learning with Pandas/NumPy. Developed automated log analytics and repair using the Elastic stack combined with RAG, reducing resolution times by 40%. Led a team to build a B2B medicine supply chain portal with SQL/NoSQL data handling, achieving a 35% increase in operational efficiency. Built a fashion recommendations system that attracted 100,000 users in the first month using personalized recommendations. Developed a robust backend for an AI image generation platform (Flask, Docker, Jenkins, Runpod) and integrated with Dialogflow for dynamic, real-time user feedback.

Machine Learning Engineer · RaftJun 2022 – Oct 2023 · 1 yr 5 mos

Built a continuous learning ML system to serve and fine-tune models from user feedback. Integrated with Flowise and LabelStudio for streamlined user interactions. Engineered resilient data pipelines to collect and create training datasets, applied training techniques such as QLoRA, and implemented CI/CD using Kubeflow pipelines. Added Evidently-based model performance monitoring and improved inference speed by 20% using Google AI Platform services for training and deployment.

Senior AI Engineer · AbyonMar 2019 – Apr 2022 · 3 yrs 2 mos
Machine Learning Engineer · Terlato Wine GroupJan 2018 – Mar 2019 · 1 yr 3 mos
Software Engineer · AldridgeAug 2014 – Nov 2017 · 3 yrs 4 mos

Education

Bachelor's Degree in Computer Science · Rice University2009 – 2014

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