数据仓库 Jobs

I need a well-structured SQL database that turns raw sales transactions into clear insight for our monthly analytics and reporting. The core job is to design the schema, import existing sales data, and build the queries (or stored procedures) that generate our standard monthly sales report with totals, trends, and key breakdowns. Right now the data lives in CSV exports from our point-of-sale system. I want it migrated into a relational database—engine choice is open (PostgreSQL, MySQL, MS SQL, or another you recommend) as long as it handles growth and lets me run additional ad-hoc reports later. Good indexing and normalization are essential because report runs must stay quick when the dataset scales. Deliverables: • SQL scripts for creating all tables, constraints, and index...

Looking for an Experienced Data Engineer Project Description I am looking for a skilled Data Engineer to help design, build, and maintain reliable data pipelines and infrastructure. The work may include collecting data from different sources, cleaning and transforming it, and storing it in a database or data warehouse. You may also work with APIs, cloud services, ETL workflows, and large datasets. The ideal candidate should have strong experience with Python, SQL, data modeling, and ETL/ELT pipelines. Experience with AWS, GCP, or Azure is preferred. Knowledge of tools such as Airflow, Spark, Kafka, Snowflake, BigQuery, or Databricks would be a plus. Please include the following in your proposal: A short introduction about your Data Engineering experience Examples of similar projects ...

Senior Data Engineer Needed for Cloud Data Pipelines and Data Warehouse We are looking for an experienced Senior Data Engineer to help design, build, improve, and maintain our data platform. The selected freelancer will work with our team to develop reliable data pipelines, integrate multiple data sources, improve data quality, and prepare analytics-ready datasets. Responsibilities: • Design and develop scalable ETL and ELT pipelines • Integrate data from APIs, databases, files, and third-party platforms • Build and optimize data warehouse models • Write efficient Python and SQL code • Configure workflow orchestration, monitoring, logging, and error handling • Troubleshoot pipeline failures and performance issues • Implement data-quality checks and va...

This project centers on turning our raw operational and sales data into clear, actionable insight that drives day-to-day and strategic decision making. During a two-week training period you will be onboarded to our current databases, data-collection procedures, and reporting cadence; that phase is compensated at $25 per hour. Once fully ramped, regular work is billed at $60 per hour, with monthly earnings expected in the $25k–$45k range. Scope of work • Connect to existing SQL tables, cloud storage, and Excel feeds, then clean and consolidate the data. • Build repeatable Python or R scripts (your choice) that automate descriptive and diagnostic metrics. • Design intuitive dashboards in Power BI or Tableau so non-technical managers can track KPIs in real time. ...