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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 validation processes • Document the architecture, pipelines, and deployment procedures • Communicate progress and technical risks clearly through Freelancer.com Required experience: • Strong professional experience in data engineering • Advanced Python and SQL skills • Experience with ETL and ELT pipeline development • Experience with relational databases and data warehouses • Experience with at least one cloud platform, preferably AWS, Azure, or Google Cloud • Experience with tools such as Airflow, dbt, Spark, Kafka, Snowflake, or Databricks • Strong understanding of data modeling, data quality, and pipeline monitoring • Ability to work independently and deliver production-quality work Initial scope: 1. Review the current data sources and architecture. 2. Recommend an appropriate technical approach. 3. Build or improve the required data pipelines. 4. Add validation, monitoring, and error handling. 5. Provide technical documentation and knowledge transfer. Please include the following in your bid: 1. A brief description of similar data-engineering projects you have completed. 2. The cloud platforms and data tools you have used professionally. 3. An example of a difficult pipeline or performance problem you solved. 4. Your availability and preferred working hours. 5. Your hourly rate or estimated cost based on the proposed approach. Please do not include external contact information in your bid. All communication, files, milestones, and payments will be handled through Freelancer.com. This may become an ongoing engagement for a freelancer who delivers reliable work and communicates consistently.
Project ID: 40582069
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174 freelancers are bidding on average $428 USD for this job

⭐⭐⭐⭐⭐ Experienced Senior Data Engineer for Cloud Pipelines & Data Warehousing ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for a Senior Data Engineer. You have no need to look any further, as Zohaib is here to help you! My team has already completed 50+ similar projects focused on data pipelines and warehousing. I will create scalable ETL and ELT pipelines, integrate various data sources, and enhance data quality—all within your budget. ➡️ Why Me? I can easily handle your data engineering needs as I have 5 years of experience in building data pipelines, optimizing data warehouses, and working with cloud platforms. My expertise includes Python, SQL, and tools like Airflow and Spark. I have a strong grip on data modeling and monitoring, ensuring a comprehensive approach to your project. ➡️ Let's have a quick chat to discuss your project in detail and I can show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Data Pipeline Development ✅ ETL/ELT Processes ✅ Python Programming ✅ SQL Proficiency ✅ Data Warehouse Optimization ✅ API Integration ✅ Cloud Platforms (AWS, Azure, Google Cloud) ✅ Airflow & dbt ✅ Spark & Kafka ✅ Data Quality Checks ✅ Performance Troubleshooting ✅ Technical Documentation Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
7.9
7.9

The biggest risk in a data platform like this usually isn't building new pipelines—it's making sure existing ETL/ELT jobs, warehouse models, and source integrations can be improved without introducing silent data quality issues or unreliable downstream analytics. I'd start by reviewing the current architecture, data sources, and pipeline flow before recommending changes, then focus on making the ingestion and transformation layers easier to monitor and recover from when failures occur. For Python and SQL pipelines, I'd pay particular attention to idempotent loads and validation so retries don't create duplicate or inconsistent data. Adding meaningful logging, monitoring, and documentation alongside the implementation makes ongoing maintenance much simpler. One question that would affect the approach: what cloud platform and orchestration stack are you using today (Airflow, dbt, Databricks, or something else)? That will determine the most practical path for improving the existing platform rather than replacing working components.
$500 USD in 7 days
6.7
6.7

Hello, I recently worked on a cloud data platform where I built ETL pipelines that collected data from APIs, databases, and files, then transformed it into analytics-ready datasets with validation and monitoring. The business domain was different, but the engineering challenges were very similar. I can help review your architecture, improve pipeline reliability, optimize warehouse models, and add proper logging, error handling, and documentation. I have hands-on experience with Python, SQL, Airflow, dbt, Spark, AWS, and Snowflake. One question: is your current warehouse already in production, or are we free to improve the data model as part of this engagement? Looking forward to building a platform your team can rely on. Dev S.
$500 USD in 7 days
6.7
6.7

With extensive experience in ETL pipeline design, data source integration, and data warehouse optimization using Python, SQL, AWS, and Airflow, I am well-equipped to enhance your data platform as a Senior Data Engineer. Understanding scalability needs and real-time data processing requirements are crucial for developing future-proof solutions. I have a proven track record of streamlining large healthcare datasets using AWS Glue and optimizing pipeline performance through strategic implementations. Let's collaborate to propel your data platform towards efficiency and reliability.
$675 USD in 5 days
6.3
6.3

Hi, I am Principal Software Engineer with 7 years of experience and I have worked on multiple datawarehouse pipeline development project.I can work on it as mentioned. Let’s connect through chat to know more
$250 USD in 3 days
6.4
6.4

Hello, I HAVE DEVELOPED SCALABLE CLOUD DATA PIPELINES, ETL/ELT WORKFLOWS, AND DATA WAREHOUSE SOLUTIONS BEFORE, AND I CAN SHARE RELEVANT PROJECT EXPERIENCE. I have carefully reviewed your requirements and can assess your current architecture, recommend the most suitable cloud data strategy, build and optimize scalable ETL/ELT pipelines, integrate APIs, databases, and third-party data sources, implement data validation, monitoring, logging, and error handling, and deliver analytics-ready datasets with complete technical documentation and knowledge transfer. I HAVE 10+ YEARS OF EXPERIENCE IN PYTHON, SQL, AWS, AZURE, GCP, AIRFLOW, DBT, APACHE SPARK, KAFKA, SNOWFLAKE, DATABRICKS, DATA WAREHOUSING, AND CLOUD DATA ENGINEERING. I follow an Agile development approach with regular updates, clean architecture, production-quality code, and comprehensive documentation. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT, COMPLETE SOURCE CODE, FULL DOCUMENTATION, AND ASSIST YOU FROM ARCHITECTURE REVIEW THROUGH DEPLOYMENT, TESTING, KNOWLEDGE TRANSFER, AND POST-DEPLOYMENT SUPPORT. I am available to start immediately and can work independently while maintaining clear communication throughout the project. I would be happy to discuss the technical approach, timeline, and milestones. I eagerly await your positive response. Thanks, Christina
$300 USD in 7 days
6.2
6.2

Hi there, I understand you're looking for a Senior Data Engineer to strengthen your data platform by building scalable, production-grade pipelines that are reliable, observable, and analytics-ready. I am confident I can help modernize your data architecture by delivering resilient ETL/ELT pipelines, robust data validation, and well-modeled warehouse solutions that support long-term growth. My approach will be to first assess your existing data architecture, source systems, and pipeline dependencies to identify performance bottlenecks, quality issues, and scalability opportunities. I'll then design modular ETL/ELT pipelines using Python and SQL, integrate data from APIs, databases, files, and third-party platforms, and optimize warehouse models for efficient analytics. I'll implement automated data-quality validation, orchestration, monitoring, logging, alerting, and fault-tolerant error handling using the most suitable cloud-native tools and frameworks. To ensure project success, I'll provide regular progress updates, proactively communicate technical risks, and deliver clean, well-tested code that follows industry best practices. What is your current cloud and data stack (AWS, Azure, or GCP), and are your existing pipelines already orchestrated with tools like Airflow, dbt, or another workflow platform? I'm ready to start immediately. Warm Regards, Aneesa.
$250 USD in 2 days
6.3
6.3

Hey, I will build your ETL/ELT pipelines, integrate your APIs, databases, and third-party sources, and deliver a warehouse model ready for analytics queries. On a recent project, restructuring a failing Airflow DAG with proper validation checkpoints and retry logic reduced pipeline failures by over 80%. You will get a short update at the end of each day. Questions: 1) Which cloud platform are you currently on (AWS, Azure, or GCP), or is the choice still open? 2) How many data sources need integration in the initial scope? Share your current architecture overview and I will send back a recommended technical approach before we kick off. Looking forward to your response. Best regards, Kamran
$276 USD in 10 days
6.4
6.4

Drawing on my 20+ years of experience, I am confident that I can meet your data engineering needs for this project. My expertise extends far beyond Laravel and Wordpress, with a particular focus on backend development and API integration. Throughout my career, I have developed and maintained numerous ETL pipelines within relational databases all while leveraging my advanced Python and SQL skills. In terms of cloud platforms, I am well-versed in using AWS, Azure, and Google Cloud to build secure and scalable applications. Plus, my proficiency with tools like Airflow, dbt, Spark, Kafka, Snowflake, and Databricks has enhanced my capabilities as a data engineer. I have personally dealt with problematic pipelines and performance issues before so I can confidently handle the present scope of this project. As a freelancer, I offer great availability and flexible working hours which ensure that critical issues or urgent updates can be dealt with promptly. My hourly rate is competitive for the value you'll receive especially considering it comes with a wealth of pragmatic experience you won't find elsewhere. Being able to communicate progress and technical risks clearly through Freelancer.com has always been one of my strengths.I strongly believe that bạn dự án will benefit from choosing me for this task and will consider continuing our cooperation past its completion .
$350 USD in 12 days
5.7
5.7

I am excited about the opportunity to collaborate on your Cloud Data Pipelines and Warehouse Development. With extensive experience as a Senior Data Engineer, I have successfully designed, built, and optimized data platforms that enhance operational efficiency and reliability. My approach will focus on developing scalable ETL and ELT pipelines, integrating diverse data sources, and ensuring data quality through rigorous validation processes. I have worked extensively with AWS, SQL, and Python, and have hands-on experience with tools such as Airflow and Snowflake, which aligns perfectly with your requirements. Having tackled challenging pipeline issues in previous projects, I am adept at troubleshooting and optimizing performance. My communication skills ensure clear progress updates and the systematic handling of any technical risks. I believe in documentation as a means to facilitate knowledge transfer and to provide a comprehensive understanding of the architecture and processes. I look forward to discussing how I can contribute to your team effectively. Can you specify the primary cloud platform you plan to use for the project? Thank you for considering my proposal. I hope to create a long-term partnership where we can achieve great results together! Best, Talha
$250 USD in 11 days
5.2
5.2

Hello, I understand you are looking for a Senior Data Engineer to design, optimize, and maintain a scalable cloud-based data platform. The goal is to build reliable ETL/ELT pipelines, improve data quality, optimize warehouse performance I have over 6 years of experience building enterprise solutions using Azure, SQL Server, Python, Power BI, REST APIs, ETL processes, Azure Synapse, Data Factory, Dataverse, and cloud-based data integration I can help with: - Designing and optimizing ETL/ELT pipelines - Integrating APIs, databases, and third-party systems - Building scalable data warehouse models - Writing efficient SQL and Python for data transformation - Implementing monitoring, logging, validation, and error handling - Performance tuning and troubleshooting pipeline failures - Documentation, deployment guidance, and knowledge transfer Cloud & Data Platforms: Azure, Azure Data Factory, Azure Synapse Analytics, SQL Server, Power BI, REST APIs. Similar Experience: I have developed enterprise data integration solutions involving multiple data sources, automated ETL workflows, reporting pipelines, and executive dashboards for operational analytics and business intelligence. Availability: 40 hours/week Working Hours: Flexible with overlap for US and European time zones Hourly Rate: $10/hour I would be happy to review your current architecture and recommend the best approach for building a scalable, maintainable, and production-ready data platform. Regards, Muhammad Shoaib
$299 USD in 7 days
5.4
5.4

Hi, I can help design, build, and optimize a scalable cloud-based data platform with reliable ETL/ELT pipelines and analytics-ready data models. With 16+ years of experience in cloud engineering, DevOps, and data infrastructure, I have delivered secure, high-performance solutions on AWS, Azure, and GCP. My expertise includes building data pipelines using Python, SQL, Airflow, Kafka, dbt, Spark, Snowflake, and Databricks, integrating APIs, databases, and third-party platforms, and designing optimized data warehouses with robust monitoring, logging, validation, and error handling. I also have extensive experience with infrastructure automation, cloud security, and performance optimization. I can review your current architecture, recommend the best technical approach, develop or enhance production-ready pipelines, implement data quality checks, and provide complete documentation with knowledge transfer. I communicate proactively, deliver clean and maintainable solutions, and can support long-term enhancements as your platform grows. We can discuss the project scope, budget, timeline, and preferred working hours once we connect. Best regards, SaD
$700 USD in 7 days
5.3
5.3

Hi, I have expertise in data engineering and worked on several similar projects so I can help in your data engineering project. Please find an example of similar project below: I worked to develop ETL data pipelines for website cartrail.co.uk. It helps car buyers to make a well informed decision to buy a car and it provide comprehensive information (100+ data points) about all registered vehicles (100s of millions) cars in the UK. - Lead the development of the complete product from scratch. - Worked to set ETL data pipelines to process raw data including 800 millions of records from several sources. - Developed an algorithm for processing raw data to get the required insights. - Worked on customer facing website and integrated data in customer facing interface and reports which included backend and front end development. - Worked on SEO for organics traffic from major search engines. - Setup infrastructure including development, staging and production server and setup auto CI/CD pipeline. - Technical Stack: Python (for ETL pipelines and data processing), PHP (Laravel), PostgreSQL, Redis, Varnish, Deployer, Stripe for payment processing I can show more examples if you want to see my further similar experience. Please message me so that we can discuss further. Kind Regards Masood Ahmed
$750 USD in 15 days
5.5
5.5

I understand you're looking to enhance your data platform by developing reliable data pipelines and integrating multiple sources effectively. My approach would begin with a thorough review of your current architecture, followed by recommending a tailored technical strategy to build or refine the necessary ETL and ELT pipelines. With 7-8 years of experience in data engineering, I have successfully constructed scalable data solutions using Python and SQL, and I’m proficient in tools like Airflow and Snowflake to optimize data workflows and ensure high data quality. In a recent project, I tackled a challenging pipeline performance issue where I implemented advanced monitoring and validation processes, which significantly reduced downtime and improved data accuracy. I have worked extensively with AWS, integrating various data sources and designing data warehouse models that are both efficient and scalable. I’m available to discuss your project further and can align my working hours with your team’s needs. My hourly rate is competitive, and I’m committed to delivering reliable work while maintaining clear communication throughout the project.
$500 USD in 7 days
4.9
4.9

Your data warehouse will fail under production load if you're ingesting from multiple APIs without implementing rate-limit handling and retry logic at the orchestration layer. This causes silent data loss that breaks downstream analytics. Quick questions - are you currently handling schema drift from your third-party sources? And what's your target data freshness SLA for analytics queries? Here is the architectural approach: - PYTHON/SQL: Build idempotent ELT pipelines with dbt for transformation logic and Great Expectations for automated data quality gates that catch anomalies before they hit your warehouse. - AWS/ETL: Design event-driven ingestion using Lambda + Step Functions for orchestration, S3 for staging, and Glue for schema evolution handling across your source systems. - DATA WAREHOUSING: Implement star schema models in Redshift with incremental materialization strategies that reduce query costs by 60% compared to full table scans. I've built similar platforms for 2 fintech companies processing 50M+ records daily with zero data loss. Let's schedule a 20-minute architecture review so I can map your specific sources to the right ingestion pattern before we commit to tooling choices.
$450 USD in 10 days
5.8
5.8

As a seasoned and dedicated Senior Full Stack Developer with over 6 years of professional experience, I am exceptionally skilled in Python and SQL – two essential components of your project. My proficiency extends to various data engineering tasks like building scalable pipelines, integrating multiple data sources, optimizing data warehouse models and writing efficient code. Additionally, my practical experience with Airflow, Spark, Snowflake etc. makes me a fitting choice for this role. One of the most fitting examples highlighting my competence is when I faced a complex pipeline issue during a previous project. Through an optimal application of my problem-solving abilities, I navigated the hurdles and created an efficient ETL pipeline which not only resolved the initial problem but also increased overall system performance significantly. My working hours are flexible given the nature of my job, allowing me to work according to your preferred time zone. Moreover, as an expert in data engineering, I understand the importance of consistent communication - you can expect comprehensive progress reports and updates from me throughout our engagement. Given your objective of reliability, consistency, and quality, I believe I perfectly align for this ongoing position. Thank You!
$251 USD in 2 days
5.4
5.4

Hi, I reviewed the project and the main requirement is to design, build, and maintain cloud data pipelines and a data warehouse. I’ll deliver scalable ETL and ELT pipelines, integrate data from APIs, databases, and files, and optimize data warehouse models using Python and SQL. I will configure workflow orchestration with robust monitoring, logging, and error handling, and implement data-quality checks to deliver analytics-ready datasets. My approach leverages Cloud infrastructure with Hadoop for large-scale processing and Elasticsearch for fast search and analytics. I deliver quality, responsiveness, and clean, production-grade work with easy management. Let’s discuss here now.
$250 USD in 30 days
4.8
4.8

Hello There! I’m Md Toriqul Islam, and I’m excited to partner with you. I can dive into your project immediately. I have rich experience in data engineering, Python, SQL, ETL/ELT pipeline development, cloud platforms, and analytics-ready data warehouse solutions. I understand you need a Senior Data Engineer to review your architecture, build reliable data pipelines, optimize warehouse models, implement monitoring, validation, and documentation, and deliver production-quality solutions. I can provide scalable, maintainable pipelines with clear communication and thorough knowledge transfer throughout the engagement. I am skilled in Python, SQL, Airflow, dbt, Spark, AWS, Snowflake, PostgreSQL, and data modeling. I’m ready to start immediately and would be happy to discuss this project. Looking forward to hearing from you. Best regards, Md Toriqul Islam
$250 USD in 5 days
4.8
4.8

Hello, I will assist you as your Senior Data Engineer to design, build, and optimize your data pipelines and warehouse models. I have completed several complex data platform projects, including building end-to-end ELT pipelines that ingest terabytes of real-time event logs and API data into Snowflake. Professionally, I work primarily in the AWS and Google Cloud environments, utilizing Python and SQL alongside orchestration tools like Airflow, modeling frameworks like dbt, and processing engines like Spark and Kafka. A notable performance challenge I resolved involved a Databricks streaming pipeline that suffered from severe data skewness; by refactoring the join structures, implementing salting keys, and optimizing the cluster partitioning, I reduced the processing latency by seventy percent and stabilized the memory usage. I will audit your active data sources, build robust ETL flows, implement dbt-based data-quality assertions, and set up Airflow monitoring to ensure reliable, automated operations. 1) From which specific databases, SaaS APIs, or event streams, such as Kafka, are we primarily ingesting data in this initial phase? 2) Which cloud platform and data warehouse, such as AWS with Snowflake or GCP with BigQuery, are currently set up for your platform? 3) Are there specific data-quality checks, such as column nullity or schema drift validation, that you need built into the pipelines? Thanks, Bharat
$350 USD in 7 days
5.0
5.0

Hello, I will design and implement scalable cloud ETL and ELT pipelines, production-ready warehouse models, and observability so analytics datasets are reliable in production. I migrated a 20 TB Postgres and S3 pipeline into Snowflake and cut query times from minutes to seconds while rebuilding Airflow DAGs and dbt models. In that engagement I wrote Python transforms, Spark jobs on Databricks, integrated Kafka ingestion, added data quality checks and PagerDuty alerts. I use AWS, GCP, Snowflake, Databricks, Airflow, dbt, Spark, Kafka, Python and SQL professionally. I can review sources, recommend an approach, build or improve pipelines, add validation and monitoring, and deliver documentation and knowledge transfer. I am available 20 hours per week, UTC+5 between 09:00 and 17:00 local time. My rate is 60 USD per hour and I estimate about 500 USD for the initial scope as described. If you share repo and pipeline access I will deliver a 48 hour written list of architecture risks and immediate fixes, free. Happy to jump on a quick chat. Ali Zain
$500 USD in 7 days
4.8
4.8

Ashburn, United States
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