Data Platform Engineer - Bilingual KR/EN (Greenfield)

Woongjin, Inc; Plano (TX); On-site; USD 110,000 - 120,000; Full time

Benefits offered by this job

Medical Insurance

Vision Insurance

401(k)

Paid Sick hours

Job summary

Woongjin, Inc. is seeking a mid-level Data Platform Engineer to build a new greenfield data platform integrating internal systems (GSCM, SEASI, SMART, and BOSS) using a Medallion Architecture.

This role owns the end-to-end data pipeline—from ingestion through Bronze/Silver/Gold transformation—while migrating existing Alteryx workflows to code-based dbt and Python implementations. The engineer will also develop an MCP server enabling AI agents to query business-specific data marts, directly

Qualifications

• 3+ years of hands-on data engineering experience in production environments.
• Advanced SQL skills, including window functions, CTEs, and query tuning.
• Hands-on dbt experience, including model design, incremental strategies, macros, and tests.
• Python proficiency for data processing and automation, including libraries such as pandas.
• Experience with at least one analytical engine: Trino/Presto, Apache Spark, or DuckDB.
• Experience with at least one lakehouse table format: Apache Iceberg, Delta Lake, or Apache Hudi.
• Experience integrating relational database sources, such as Microsoft SQL Server and Oracle, using CDC or batch processing
• Experience with Medallion Architecture and star schema/dimensional modeling

Responsibilities

• Ingest data from sources such as Microsoft SQL Server (BOSS) and Oracle into the Bronze layer, implementing CDC-based incremental ingestion
• Develop dbt models for the Silver layer including cleansing, standardization, deduplication, and data quality testing
• Develop Gold layer business-specific data marts and migrate existing Alteryx transformation logic
• Configure Apache Iceberg tables and a REST Catalog, including schema evolution and time travel support
• Develop and operate Apache Airflow DAGs, managing dependencies, scheduling, and failure notifications
• Develop an MCP server enabling AI agents to query Gold-layer data marts, including catalog/metadata access, ontology integration, and query execution
• Manage metadata and data lineage using OpenMetadata
• Automate Excel reporting using Python and openpyxl

Skills

SQL

dbt

Python

Trino/Presto/Spark/DuckDB

Iceberg/Delta/Hudi

CDC data ingestion

Medallion Architecture

Star schema modeling

Tools

Microsoft SQL Server

Oracle

MinIO (S3-compatible storage)

OpenMetadata

DataHub

Alteryx

Job description

Woongjin, Inc. is seeking a mid-level Data Platform Engineer to build a new greenfield data platform integrating internal systems (GSCM, SEASI, SMART, and BOSS) using a Medallion Architecture.

This role owns the end-to-end data pipeline—from ingestion through Bronze/Silver/Gold transformation—while migrating existing Alteryx workflows to code-based dbt and Python implementations. The engineer will also develop an MCP server enabling AI agents to query business-specific data marts, directly