Senior Data Engineer

Hammerjack Pty Ltd; Philippines; On-site; PHP 1,000,000 - 1,800,000; Full time

Job summary

Hammerjack Pty Ltd is seeking a Data Engineer to design, build, and optimize scalable data pipelines and services powering analytics, AI/ML, and internal apps. You will own ingestion, transformation, validation, and delivery of diverse data in a cloud-native environment.

The role partners with analytics, platform, and AI teams to ensure high-quality, governed data that is performant and ready for downstream use. Strong Python, ETL/ELT, and data modeling skills are essential.

Qualifications

• Bachelor’s degree or higher in Computer Science, Computer Engineering, Data Science, or a related field.
• 5+ years of professional experience in data engineering, including end-to-end ownership of ETL/ELT pipeline design, development, deployment, and monitoring.
• Practical experience implementing data validation, cleansing, transformation, and reconciliation processes to ensure high-quality, trustworthy datasets.
• Strong programming skills in Python and experience with common data engineering libraries and frameworks such as Pandas, SQLAlchemy, PySpark, and/or Airflow.
• Deep experience with relational (SQL) and NoSQL databases, data warehouse platforms, and schema/model design.
• Experience with data governance, metadata management, and lineage tracking.

Responsibilities

• Build robust ETL/ELT workflows that handle varied data sources at scale.
• Design data models and ontologies to maximize analytical value.
• Implement data validation and integrity checks across ingestion processes.
• Develop APIs and data services exposing data to internal apps and platforms.
• Optimize queries and data workflows for performance and resilience.
• Collaborate with stakeholders to integrate new data sources.
• Maintain documentation for pipelines, models, metadata, and lineage.
• Monitor ETL/ELT processes for data quality and alert on issues.

Skills

ETL/ELT design

Data modeling

Python programming

Pandas

SQLAlchemy

PySpark

Airflow

Relational databases

NoSQL databases

APIs and data services

Data governance

Metadata management

Data lineage

Education

Bachelor's degree or higher in Computer Science, Computer Engineering, Data Science, or related field

Tools

Pandas

SQLAlchemy

PySpark

Airflow

Job description

Position Summary

The Data Engineer, will design, build, and optimize scalable data pipelines and services that power analytics, AI/ML, and internal applications across the enterprise. This role owns the ingestion, transformation, validation, and delivery of structured, semi-structured, and unstructured data in a cloud-native environment.

The ideal candidate brings strong experience building robust ETL/ELT workflows, designing scalable data models, and exposing trusted data through APIs and reusable data services. This role will partner closely with analytics, application, platform, and AI teams to ensure data is high-quality, governed, performant, and ready for downstream use.

What You'll Do

• Build robust ETL/ELT workflows that handle structured, semi-structured, and unstructured data sources at scale.
• Design data models and ontologies that maximize analytical value and support graph-oriented and downstream application use cases.
• Implement data validation, cleansing, reconciliation, and integrity checks across ingestion processes to ensure consistent, trustworthy data.
• Develop APIs and data services that expose graph and enterprise data to internal applications and platforms.
• Optimize queries and data workflows for performance, scalability, and resilience.
• Collaborate with subject matter experts and technical stakeholders to identify, evaluate, and integrate new data sources.
• Maintain detailed documentation for pipelines, data models, metadata, lineage, and integration processes.
• Monitor and tune ETL/ELT processes for efficiency, resilience, and scalability, including alerting for data quality issues.

Qualifications

• Bachelor's degree or higher in Computer Science, Computer Engineering, Data Science , or a related field.
• 5+ years of professional experience in data engineering , including end-to-end ownership of ETL/ELT pipeline design, development, deployment, and monitoring.
• Practical experience implementing data validation, cleansing, transformation, and reconciliation processes to ensure high-quality, trustworthy datasets.
• Strong programming skills in Python and experience with common data engineering libraries and frameworks such as Pandas, SQLAlchemy, PySpark, and/or Airflow .
• Deep experience with relational (SQL) and NoSQL databases, data warehouse platforms, and schema/model design.
• Experience with data governance, metadata management, and lineage tracking.