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I have an Airflow pipeline written in Python whose sole purpose is data transformation, and it’s not behaving as expected. I need someone to jump in right away, review the existing DAG, correct the logic or write missing pieces, and then validate that every transformation scenario runs cleanly end-to-end. Scope of work • Inspect the current DAG structure, task dependencies, schedules, and Python operators. • Patch or rewrite any sections that break the transformation flow, including hooks, sensors, and custom Python functions. • Create or update unit tests and an Airflow test run so each transformation scenario (success path, retries, failure alerts) is covered. • Hand over the updated DAG, a short README explaining configuration variables, and evidence of a green test run in my environment. Acceptance criteria • DAG is visible in the Airflow UI without import errors. • All tasks succeed when triggered manually and on schedule. • Retry logic, alerting, and failure handling behave exactly as coded. • Code follows PEP8 and Airflow best practices. Timeline is ASAP, so I’ll prioritise freelancers who can demonstrate solid Airflow experience and can start immediately. When you respond, briefly outline similar transformation pipelines you’ve fixed or built and your estimated turnaround.
ID del proyecto: 40011266
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7 freelancers están ofertando un promedio de ₹993 INR /hora por este trabajo

Dear Hiring Manager, I understand you need someone to quickly stabilize and refine an existing Airflow-based transformation pipeline so every scenario runs cleanly end-to-end. My focus would be on making the DAG reliable, readable, and fully aligned with Airflow best practices. Here’s how I can help: ➡ Review the current DAG structure, imports, task dependencies, schedules, and PythonOperators to resolve any import or graph issues ➡ Inspect hooks, sensors, and custom Python functions to fix broken logic and ensure transformations run in the correct order ➡ Refactor code to follow PEP8 and Airflow conventions (clear task IDs, XCom usage, reusable helpers, proper retries and SLAs) ➡ Implement or update unit tests plus an Airflow test run to cover success paths, retries, and failure/alert scenarios ➡ Configure and verify email/Slack (or your chosen) alerting so failures behave exactly as defined ➡ Provide an updated DAG, a concise README documenting configuration variables, connections, and how to run tests locally/in your environment I’ll aim to leave you with a clean, maintainable pipeline that is visible in the UI, runs without surprises, and is easy to extend for future transformations. Best Regards, Mayank Saluja
₹750 INR en 40 días
4,8
4,8

We have set up airflow dags for another project for insurance company, am sure we can quickly fix your problem.
₹1.500 INR en 30 días
3,4
3,4

Hi, To meet your needs, I’ll move away from legacy operators and use the TaskFlow API with @task decorators. This will simplify the code and improve data passing (XComs handled automatically), making everything more readable. For the unit tests, I’ll provide a pytest suite that tests the Python logic outside of Airflow to make sure your transformation rules hold up. Please share the current DAG code and relevant functions, and I’ll review it right away. I’ll identify any issues, refactor the code, and implement the new architecture you requested. Looking forward to getting started! Best regards, Abubakar M
₹850 INR en 40 días
2,3
2,3

Hello, I hope you are doing well. I understand that you need someone who can quickly review and fix your Airflow pipeline. I have strong experience working with Airflow, Python-based DAGs, and data transformation workflows, and I can join immediately to inspect and repair the full pipeline. I can help you with: Reviewing your existing DAG, task order, schedules, and Python operators Fixing or rewriting any broken parts, including hooks, sensors, and custom Python functions Updating or creating unit tests so all transformation cases are covered Running full test executions to confirm success, retries, and failure alerts Delivering a clean, updated DAG with a short README explaining the configuration Providing proof of a successful test run in your environment I follow PEP8 and Airflow best practices, and I will make sure the DAG loads cleanly in the UI, runs end-to-end without errors, and behaves exactly as expected for retry and alert logic. I have worked on several transformation pipelines where I fixed failing tasks, improved dependency logic, corrected retry behaviour, and built testable DAGs for production data workflows. I can usually complete this type of work very quickly once I review the current code. Please share the DAG or repository access so I can check it and confirm the exact turnaround time. Best regards.
₹1.000 INR en 40 días
0,0
0,0

Having reviewed the specifics of your project, I'm confident in my ability to swiftly and effectively address your Airflow DAG issues. Though you may not immediately see the connection between data transformation and my proficiencies as a typing expert, my 60+ words per minute speed and 100% accuracy make me a technician when it comes to fine-tuning processes. Ensuring that every task in your DAG executes smoothly aligns with my precision-focused skillset. On top of my nimble fingers, I also have valuable experience dealing with data processing, which is an essential aspect of your project. I've adeptly handled tasks similar to yours such as converting files from PDFs/Images to Word/Excel and performing copy-paste operations with utmost attention to detail. My competency in executing accurate and thorough data entry contributes well to troubleshooting workflow discrepancies you currently face. In terms of your project turnaround time, I prioritize immediate action just as much as you do. If chosen, I assure you that I will not only tackle the existing obstructions but also enhance your entire transformation pipeline by creating comprehensive unit tests and implementing rigorous error handling mechanisms. Let's work together toward achieving an optimised airflow process that stands up to both manual resurrection or regular scheduled refuels!
₹1.000 INR en 40 días
0,0
0,0

Experienced Data Engineer with 4+ years of industry experience, specializing in designing and deploying scalable cloud-based products. Expertise in Azure Databricks, Pyspark, Python, SQL, Airflow and Azure Cloud. Developed and implemented a comprehensive data cleansing framework resulting in a 60% reduction in manual effort. Led migration of complex data to Cloud, increasing performance by 25%. Achieved 99.9% accuracy for loaded data and improved data accuracy by 36%. Strong skills in developing data pipelines and collaborating with cross-functional teams.
₹1.000 INR en 40 días
0,0
0,0

Having extensive experience in developing and maintaining complex technological solutions, I possess the actionable skills required to identify, isolate, and fix any issues in your Airflow DAG. Though I am relatively new to Freelancer, I have a comprehensive track record of over a decade in providing top-notch solutions across the globe. My core competency lies in PHP and Airflow is one among several areas where I have honed my expertise. During my career, I have built and fixed various transformation pipelines, which resemble the task at hand. For instance, when fine-tuning an intricate transaction pipeline for one of my clients, I had to meticulously evaluate each segment to ensure a smooth workflow similar to what your project demands. Moreover, my adeptness in adhering to standard PEP 8 coding practices guarantees that all the deliverable code for this project will be well-documented, clean and maintainable; saving you considerable effort in any future modifications or upgrades. Given my merge of skills and proficiency in Airflow, I assure you rapid turnaround without compromising on quality or functionality. Let me solve your problem quickly so you can continue your important data transformations without stress. Let's discuss further. Regards, Kuntal
₹850 INR en 40 días
0,0
0,0

Kanpur, India
Miembro desde oct 2, 2024
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