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I’m a Senior Software Engineer with 9+ years of experience designing scalable backend systems, robust API services, and ML engineering. I specialize in architecting microservice-based solutions, deploying containerized applications, and implementing CI/CD pipelines. I’m passionate about writing clean, maintainable code and delivering high-impact software across diverse industries. I thrive in collaborative environments, partnering with data scientists and product teams to build intelligent, end-to-end solutions—from backend services and ML workflows to responsive frontends and data visualization dashboards. I’m driven by technical excellence, robust monitoring, and a user-centric approach to software delivery.…I’m a Senior Software Engineer with 9+ years of experience designing scalable backend systems, robust API services, and ML engineering. I specialize in architecting microservice-based solutions, deploying containerized applications, and implementing CI/CD pipelines. I’m passionate about writing clean, maintainable code and delivering high-impact software across diverse industries. I thrive in collaborative environments, partnering with data scientists and product teams to build intelligent, end-to-end solutions—from backend services and ML workflows to responsive frontends and data visualization dashboards. I’m driven by technical excellence, robust monitoring, and a user-centric approach to software delivery.

John Kevin Lopez

Full Stack Developer, AI Developer, Back-End Developer, +2

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I’m a Senior Software Engineer with 9+ years of experience designing scalable backend systems, robust API services, and ML engineering. I specialize in architecting microservice-based solutions, deploying containerized applications, and implementing CI/CD pipelines. I’m passionate about writing clean, maintainable code and delivering high-impact software across diverse industries. I thrive in collaborative environments, partnering with data scientists and product teams to build intelligent, end-to-end solutions—from backend services and ML workflows to responsive frontends and data visualization dashboards. I’m driven by technical excellence, robust monitoring, and a user-centric approach to software delivery.…I’m a Senior Software Engineer with 9+ years of experience designing scalable backend systems, robust API services, and ML engineering. I specialize in architecting microservice-based solutions, deploying containerized applications, and implementing CI/CD pipelines. I’m passionate about writing clean, maintainable code and delivering high-impact software across diverse industries. I thrive in collaborative environments, partnering with data scientists and product teams to build intelligent, end-to-end solutions—from backend services and ML workflows to responsive frontends and data visualization dashboards. I’m driven by technical excellence, robust monitoring, and a user-centric approach to software delivery.

Available to hire

I’m a Senior Software Engineer with 9+ years of experience designing scalable backend systems, robust API services, and ML engineering. I specialize in architecting microservice-based solutions, deploying containerized applications, and implementing CI/CD pipelines. I’m passionate about writing clean, maintainable code and delivering high-impact software across diverse industries.

I thrive in collaborative environments, partnering with data scientists and product teams to build intelligent, end-to-end solutions—from backend services and ML workflows to responsive frontends and data visualization dashboards. I’m driven by technical excellence, robust monitoring, and a user-centric approach to software delivery.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Senior AI & Full Stack Developer at CharmAIOS

March 1, 2026 - Present

Developed and deployed AI-powered virtual agents using OpenAI GPT-4 and LangChain to automate e-commerce workflows, including customer support, product recommendations, and sales analytics. Built backend microservices in Python (FastAPI, Django) and containerized them with Docker and Kubernetes to enable efficient CI/CD on AWS (ECS, EKS). Designed scalable APIs and integrated them with third-party platforms (Shopify, BigCommerce) and CRMs (Salesforce, HubSpot). Implemented frontend interfaces with React and Next.js for real-time chat with LLMs and data visualization dashboards, while ensuring backend reliability. Used Redis, PostgreSQL, and Elasticsearch to support high-volume transactions, and collaborated with data scientists to fine-tune LLMs for sentiment analysis and predictive insights. Established monitoring and alerting with Prometheus, Grafana, and AWS CloudWatch for a resilient infrastructure.

Senior AI & Full Stack Developer at HKNet Company Limited

October 1, 2019 - November 1, 2023

Built AI-powered analytics platforms for workplace safety and ergonomic monitoring using Python (Flask, Django), OpenCV, and TensorFlow. Developed scalable full-stack applications with a Vue.js frontend and REST APIs for real-time video analysis and continuous delivery. Architected microservice-based systems on Google Cloud Platform using Cloud Functions, Pub/Sub, and Firestore; modernized legacy PHP Laravel services while introducing Python FastAPI modules. Integrated with hardware (i-PRO cameras) and optimized inference pipelines with ONNX and TensorRT; managed the AI lifecycle with MLFlow and Vertex AI, including data preprocessing, model training, evaluation, and production deployment. Implemented secure authentication using OAuth2, Firebase Auth, and JWT.

Full Stack & ML Engineer at AIDigital Inc.

June 1, 2017 - August 1, 2019

Developed AI-driven video analytics applications using Python and TensorFlow for behavior detection, facial recognition, and real-time alerts. Designed and maintained PHP Laravel-based admin portals and APIs supporting customer dashboards and real-time notifications. Built real-time 3D motion capture pipelines with multi-camera setups, computer vision, and WebSocket streaming integrated with React dashboards. Leveraged Google Cloud Platform (Cloud Run, BigQuery) for deploying ML inference models and large-scale analytics; integrated with Japanese eCommerce platforms and payment gateways via REST APIs. Implemented CI/CD pipelines with GitHub Actions, Docker Compose, and Kubernetes to ensure zero-downtime deployments. Collaborated with UX teams to translate AI insights into UI components using Tailwind CSS and Vue.js.