Jaehyeon Kim
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Linux Dev Environment on Windows

Linux Dev Environment on Windows
November 1, 201913 min read DevelopmentDockerKubernetesMinikubePythonRWSL

Build a Linux development environment on Windows with WSL, then run an RServe web service with a sidecar container on Minikube as the example app.

Read More: Linux Dev Environment on Windows

AWS Local Development with LocalStack

AWS Local Development with LocalStack
July 20, 20197 min read DevelopmentAWSAWS LambdaDockerFlaskLocalStackPython

Develop and test AWS applications against LocalStack, a mocking framework that runs AWS services on a local machine, demonstrated with a web service.

Read More: AWS Local Development with LocalStack

Serverless Data Product POC Backend Part 4 - Serving R ML Model via S3

Serverless Data Product POC Backend Part 4 - Serving R ML Model via S3
April 17, 201710 min read Development Serverless Data ProductAmazon API GatewayAWSAWS LambdaPythonR

Host the web application that calls an R machine learning model on Amazon S3, so both the front end and the Lambda backend run without a server.

Read More: Serverless Data Product POC Backend Part 4 - Serving R ML Model via S3

Serverless Data Product POC Backend Part 3 - Exposing R ML Model via APIG

Serverless Data Product POC Backend Part 3 - Exposing R ML Model via APIG
April 13, 201712 min read Development Serverless Data ProductAmazon API GatewayAWSAWS LambdaPythonR

Expose an R machine learning model packaged in AWS Lambda through Amazon API Gateway, giving the model a callable HTTP endpoint on AWS.

Read More: Serverless Data Product POC Backend Part 3 - Exposing R ML Model via APIG

Serverless Data Product POC Backend Part 2 - Deploying R ML Model via Lambda

Serverless Data Product POC Backend Part 2 - Deploying R ML Model via Lambda
April 11, 20179 min read Development Serverless Data ProductAmazon API GatewayAWSAWS LambdaPythonR

Deploy an R machine learning model to AWS Lambda and call it without managing a server.

Read More: Serverless Data Product POC Backend Part 2 - Deploying R ML Model via Lambda

Serverless Data Product POC Backend Part 1 - Packaging R ML Model for Lambda

Serverless Data Product POC Backend Part 1 - Packaging R ML Model for Lambda
April 8, 201712 min read Development Serverless Data ProductAmazon API GatewayAWSAWS LambdaPythonR

Package a logistic regression model built in R so it can run on AWS Lambda, after testing it locally.

Read More: Serverless Data Product POC Backend Part 1 - Packaging R ML Model for Lambda

Quick Test to Wrap Python in R

November 21, 20154 min read DevelopmentPythonR

Wrap Python boto calls for Amazon S3 in an R package, rs3helper, where the Python scripts return JSON so R parses it as vectors and data frames.

Read More: Quick Test to Wrap Python in R

Some Thoughts on Python for R Users

August 9, 20155 min read DevelopmentPythonR

Call a SOAP web service from Python with the suds library, a job R has no comprehensive client package for, demonstrated on the Sizmek MDX API.

Read More: Some Thoughts on Python for R Users

Some Thoughts on Python

August 8, 20154 min read DevelopmentPythonR

Write Python in an object-oriented style, shown with SOAP API client classes, and a reading order for the Introducing Python book by chapter group.

Read More: Some Thoughts on Python
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Profile
Jaehyeon Kim
Jaehyeon Kim
Data Engineer | Data Streaming | Powering ML & AI in Real Time
Taxonomies
Data Streaming 70 Data Engineering 45 Development 28 Data Analysis 17 Open Source 15 Data Integration 12 Machine Learning 7 Kubernetes 6 Security 5 Data Architecture 3 Data Processing 3 Big Data 2 System Architecture 2 Web Development 2
Python 79 Apache Kafka 73 AWS 50 Docker 50 Apache Flink 39 Apache Beam 17 Apache Spark 17 Kafka Connect 16 Amazon MSK 14 AWS Lambda 14 Benchtop 13 dbt 13 desflow 13 odctl 12 Amazon EMR 11 PostgreSQL 10 Discrete Event Simulation 8 Kubernetes 8 PyFlink 8 Apache Iceberg 7 Change Data Capture (CDC) 7 Debezium 7 Kotlin 7 SimPy 7 Apache Airflow 6 Kafka UI 6 Amazon DynamoDB 5 PySpark 5 Amazon API Gateway 4 Amazon Athena 4 AWS Glue 4 AWS Glue Schema Registry 4 BigQuery 4 Digital Twin 4 FastAPI 4 Minikube 4 Amazon EKS 3 Amazon QuickSight 3 Amazon S3 3 Apache Hudi 3 ALL 144
Kafka Development with Docker 11 Apache Beam Python Examples 10 Building Real-Time Digital Twins with desflow 8 Real Time Streaming with Kafka and Flink 7 dbt Pizza Shop Demo 6 Apache Beam Local Development with Python 5 dbt for Effective Data Transformation on AWS 5 Getting Started with Real-Time Streaming in Kotlin 5 Kafka Connect for AWS Services Integration 5 Serverless Data Product 4 Data Lake Demo Using Change Data Capture 3 Getting Started with PyFlink on AWS 3 Kafka Development on Kubernetes 3 Parallel processing on single machine 3 Realtime Dashboard with FastAPI, Streamlit and Next.js 3 API development with R 2 dbt Guide for Production 2 Deploy Python Stream Processing App on Kubernetes 2 Download Stock Data 2 From Prototype to Production: Real-Time Product Recommendation with Contextual Bandits 2 ALL 25
2026 19 2025 13 2024 29 2023 39 2022 15 2021 7 2020 1 2019 5 2018 2 2017 6 2016 6 2015 15 2014 5
Posts
  • desflow from the Command Line: One Model, Every Command
    desflow from the Command Line: One Model, Every Command
    October 30, 2026
  • From dynamic-des to desflow: What Changed in Five Releases
    From dynamic-des to desflow: What Changed in Five Releases
    October 28, 2026
  • odctl 1.0: Kafka, Flink, Spark, Iceberg, Trino and MLflow on Your Laptop with One Command
    odctl 1.0: Kafka, Flink, Spark, Iceberg, Trino and MLflow on Your Laptop with One Command
    October 12, 2026
  • Defining Data-Streaming Simulations in YAML, Without Writing Python
    Defining Data-Streaming Simulations in YAML, Without Writing Python
    October 6, 2026
  • Keeping Game Leaderboards Up to Date in Real Time with Kafka and Flink SQL
    Keeping Game Leaderboards Up to Date in Real Time with Kafka and Flink SQL
    October 2, 2026
  • Change Data Capture on a Simulated Online Shop with Debezium and Kafka Connect
    Change Data Capture on a Simulated Online Shop with Debezium and Kafka Connect
    October 1, 2026
  • Building an Agentic Analytics System over an Iceberg Lakehouse
    Building an Agentic Analytics System over an Iceberg Lakehouse
    July 18, 2026
  • Current London 2026: Building End-to-End Data Lineage
    Current London 2026: Building End-to-End Data Lineage
    May 22, 2026
  • Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    Building a Real-Time Industrial Digital Twin with Apache Flink and Online Machine Learning
    April 21, 2026
  • Productionizing an Online Product Recommender using Event Driven Architecture
    Productionizing an Online Product Recommender using Event Driven Architecture
    February 23, 2026
  • desflow from the Command Line: One Model, Every Command
    desflow from the Command Line: One Model, Every Command
    October 30, 2026
  • From dynamic-des to desflow: What Changed in Five Releases
    From dynamic-des to desflow: What Changed in Five Releases
    October 28, 2026
  • odctl 1.0: Kafka, Flink, Spark, Iceberg, Trino and MLflow on Your Laptop with One Command
    odctl 1.0: Kafka, Flink, Spark, Iceberg, Trino and MLflow on Your Laptop with One Command
    October 12, 2026
  • Defining Data-Streaming Simulations in YAML, Without Writing Python
    Defining Data-Streaming Simulations in YAML, Without Writing Python
    October 6, 2026
  • Keeping Game Leaderboards Up to Date in Real Time with Kafka and Flink SQL
    Keeping Game Leaderboards Up to Date in Real Time with Kafka and Flink SQL
    October 2, 2026
  • Change Data Capture on a Simulated Online Shop with Debezium and Kafka Connect
    Change Data Capture on a Simulated Online Shop with Debezium and Kafka Connect
    October 1, 2026
  • Data Streaming and Machine Learning Projects That Run on Your Laptop
    Data Streaming and Machine Learning Projects That Run on Your Laptop
    September 30, 2026
  • Learning MLOps with a Feature Store: A New Series
    Learning MLOps with a Feature Store: A New Series
    September 28, 2026
  • Building an Agentic Analytics System over an Iceberg Lakehouse
    Building an Agentic Analytics System over an Iceberg Lakehouse
    July 18, 2026
  • desflow: A Declarative API with Postgres and Redis Connectors
    desflow: A Declarative API with Postgres and Redis Connectors
    July 17, 2026
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Jaehyeon Kim

Data Engineer | Data Streaming | Powering ML & AI in Real Time

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