About Galaxy Joy
Galaxy Joy operates Vietnam's leading loyalty platform, powering the Vietjet SkyJoy program
andconnecting over 250 brand partners across thecountry. As we expand across ASEAN,we're
building a world-class data infrastructure from the ground up to support real-time transaction
processing, partner integrations, and data-driven decision making at scale
II. Mô tả công việc/ Job Description:
We're looking for a Senior Data Engineer to join our growing data team and play a central role in
transforming our data infrastructure into a modern, scalable platform. This is a hands-on leadership
position where you'll own critical deliverables, drive architectural decisions, and help establish best
practices as we build out our medallion architecture. You'll work across the full data stack, from
ingestion and orchestration through transformation andanalytics, and have significant influence over
how we design and operate our data platform.
Platform Modernization
You will drive the transformation of legacy systems into our modern data architecture. This includes
championing engineering best practices such as code reviews, documentation, and testing, as well as
mentoring junior team members andcontributing to building our data engineering culture.
Data Ingestion and Orchestration
You will design, develop, and maintain robust data pipelines using Apache Airflow and Python. This
includes building and optimizing DAGs for ingesting data from brand partners with varying formats
anddelivery methods. You'll ensure data quality and reliability at the point of ingestion with proper
validation and error handling.
Data Transformation and Processing
You will own heavy data transformation workloads, translating complex business requirements into
efficient Spark jobs. This involves building and maintaining scalable data pipelines that handle late
arriving data, schema evolution, and partner data synchronization. You'll implement comprehensive
monitoring and alerting to ensure pipeline health and data freshness, working with Delta Lake for
reliable, ACID-compliant data processing.
Analytics and Reporting
You will design and optimize data models in Snowflake for analytical workloads. You'll partner with
BI teams to ensure data is structured for effective Power BI reporting and self-service analytics, and
build aggregation pipelines that support business intelligence and operational reporting needs.
III. Yêu cầu công việc/ Job requirements:
Required:
Minimum 4 years of experience in data engineering or related roles
Strong proficiency in Python and SQL
Hands-onexperience with ApacheAirflow or similar orchestration tools and DAG design
patterns
Production experience with Apache Spark for large-scale data transformations
Experience with cloud data warehouses, preferably Snowflake
Solid understanding of data modeling, ETL/ELT patterns, and data quality practices
Experience building monitoring and alerting for data pipelines
Strong knowledgeofdatagovernanceandcompliancerequirements,particularly Vietnam's
data regulations
Strong communicationskills and ability to work with business stakeholders to understand
requirements
Strong attention to detail and commitment to delivering well-tested, and maintainable data solutions.
Nice to Have:
Experience with Delta Lake or similar lakehouse technologies
Familiarity with dbt for transformation workflows
Experience in loyalty, banking, airlines or multi-tenant data platforms
Background working with high-volumetransactional data
Experience with Power BI, similar BI tools and Dashboards
Agentic AI efficient prompting skills.