Tech & Product

Freelance Data Engineer

Jakarta
Work Type: Contract
Responsibilities:
● Design, develop, and maintain scalable ETL/ELT pipelines to process structured and unstructured data. 
● Manage and optimize databases, data warehouses, and data lakes (SQL/NoSQL, BigQuery, etc.). 
● Ensure data quality, governance, and reliability through validation, monitoring, and automation. 
● Optimize pipelines and queries for large datasets and high-volume transactions.
● Explore and analyze datasets using statistical methods to identify trends and insights.
● Build, validate, and fine-tune predictive and prescriptive machine learning models relevant to the business.
● Deploy models into production by integrating them with data pipelines and business applications
● Communicate findings and recommendations through dashboards, visualizations, and reports
● Set up, maintain, and monitor Google Cloud Platform services (BigQuery, Dataflow, Cloud Storage, Pub/Sub, Composer). 
● Manage ETL workflows on GCP, ensuring reliability, scalability, and cost efficiency. 
● Implement security, access control, and compliance in cloud-based data systems. 
● Collaborate with cross-functional teams (business, sales, operations) to ensure data is actionable and accessible.

Requirements & Qualifications:
● Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience). 
● Minimum 2+ years of experience in Data Engineering, especially in data modeling, warehousing, and distributed systems
● Strong proficiency in Python (for data pipelines, ML).
● Strong knowledge of SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB) and experience with ClickHouse is a plus. 
● Familiarity with RESTful APIs (design, development, integration).
● Familiarity with machine learning frameworks (TensorFlow, scikit-learn, PyTorch).
● Hands-on expertise with Google Cloud Platform (BigQuery, Dataflow, Pub/Sub, Composer, Cloud Storage); experience in GCP infra setup is a strong plus.
● Proficient in Linux-based servers and deployment workflows.
● Skilled in Git/Bitbucket for version control and collaborative development.
● Experience implementing security best practices in both web applications and data infrastructure.
● Strong problem-solving, analytical, and collaboration skills.
● Experience with Zoho Deluge scripting is a plus.

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