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I'm Tim Johnson, a seasoned full-stack engineer with 14+ years of experience building scalable web platforms and AI/ML systems across retail, media, and data-driven industries. I specialize in Python, Node.js, and React, with deep expertise in cloud-native architectures (AWS, GCP), data engineering pipelines, and machine learning deployments. I've led end-to-end product development, optimized infrastructure, and mentored engineering teams to deliver production-grade solutions. I'm passionate about applying data and ML to real-world problems, collaborating with product and design teams to deliver impactful, user-centric features, and continually improving systems for reliability and performance.…I'm Tim Johnson, a seasoned full-stack engineer with 14+ years of experience building scalable web platforms and AI/ML systems across retail, media, and data-driven industries. I specialize in Python, Node.js, and React, with deep expertise in cloud-native architectures (AWS, GCP), data engineering pipelines, and machine learning deployments. I've led end-to-end product development, optimized infrastructure, and mentored engineering teams to deliver production-grade solutions. I'm passionate about applying data and ML to real-world problems, collaborating with product and design teams to deliver impactful, user-centric features, and continually improving systems for reliability and performance.

Tim Johnson

Full Stack Developer, Back-End Developer, Front-End Developer, +4

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I'm Tim Johnson, a seasoned full-stack engineer with 14+ years of experience building scalable web platforms and AI/ML systems across retail, media, and data-driven industries. I specialize in Python, Node.js, and React, with deep expertise in cloud-native architectures (AWS, GCP), data engineering pipelines, and machine learning deployments. I've led end-to-end product development, optimized infrastructure, and mentored engineering teams to deliver production-grade solutions. I'm passionate about applying data and ML to real-world problems, collaborating with product and design teams to deliver impactful, user-centric features, and continually improving systems for reliability and performance.…I'm Tim Johnson, a seasoned full-stack engineer with 14+ years of experience building scalable web platforms and AI/ML systems across retail, media, and data-driven industries. I specialize in Python, Node.js, and React, with deep expertise in cloud-native architectures (AWS, GCP), data engineering pipelines, and machine learning deployments. I've led end-to-end product development, optimized infrastructure, and mentored engineering teams to deliver production-grade solutions. I'm passionate about applying data and ML to real-world problems, collaborating with product and design teams to deliver impactful, user-centric features, and continually improving systems for reliability and performance.

Available to hire

I’m Tim Johnson, a seasoned full-stack engineer with 14+ years of experience building scalable web platforms and AI/ML systems across retail, media, and data-driven industries. I specialize in Python, Node.js, and React, with deep expertise in cloud-native architectures (AWS, GCP), data engineering pipelines, and machine learning deployments. I’ve led end-to-end product development, optimized infrastructure, and mentored engineering teams to deliver production-grade solutions.

I’m passionate about applying data and ML to real-world problems, collaborating with product and design teams to deliver impactful, user-centric features, and continually improving systems for reliability and performance.

Skills

Experience Level

Expert

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Language

English

Fluent

Work Experience

Lead Software Engineer at Gigantic Playground

July 1, 2024 - July 1, 2024

Designed and implemented a data ingestion and transformation pipeline using Python, Airflow, and AWS Glue, automating the processing of unstructured media data into structured analytics-ready formats. Built a real-time data enrichment service in Node.js and FastAPI, integrating with third-party APIs and streaming events via GCP Pub/Sub. Developed and deployed a React + Next.js dashboard that visualized processed datasets and AI insights for internal product teams. Implemented ML models in PyTorch and TensorFlow for classification and clustering tasks, deployed via AWS SageMaker, enabling automated tagging of user-generated content. Led migration of core data workflows to a hybrid AWS/GCP environment, optimizing costs while ensuring scalability and reliability. Coordinated with product managers and data scientists to ensure end-to-end delivery of a production-grade data processing platform.

Senior Software Engineer at Valtech

April 1, 2023 - April 1, 2023

Architected and deployed AI-powered personalization engines for global retail clients using Python, TensorFlow, and AWS SageMaker, boosting recommendation accuracy and conversion rates. Designed Node.js + React micro-frontends to replace legacy monoliths, enabling faster feature delivery. Built scalable data engineering pipelines with Airflow and GCP BigQuery to process billions of user events monthly. Migrated services from on-prem to AWS Kubernetes (EKS) with Helm and Terraform, reducing infra costs and standardizing deployments. Created a real-time analytics dashboard with React, GraphQL, and D3.js to monitor live KPIs. Implemented event-driven microservices with Kafka and Node.js for near real-time order tracking and fraud detection. Introduced CI/CD using GitHub Actions, Docker, and AWS Lambda, reducing deployment times. Led a monorepo strategy with Nx and shared TS libraries, and designed ML-driven A/B testing framework. Optimized Elasticsearch clusters for performance and reliab