The ultimate guide to hiring a web developer in 2021
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ETL stands for Extract, Transform and Load, which is the foundation of the data warehousing process. An ETL Expert is someone who understands the data requirements of an organization and helps create an efficient method of managing that data. This professional should be able to collect data from multiple sources, organize that data for use, and make sure that the data is clean and up-to-date with minimal downtime. An ETL Expert can also monitor, guarantee performance and optimize data delivery to facilitate best practices in a business environment.
Here's some projects that our expert ETL Experts made real:
An experienced ETL Expert makes these demanding projects look effortless, while also making sure that they are delivered with accuracy and care. With the right knowledge on hand ,they have the potential to make significant contributions by helping businesses expand their customer base by utilizing their exisiting resources effectively. We invite you to post your project in Freelancer.com and find an expert ETL Expert who will help your business reach new heights.
Müşterilerimiz, ETL Experts freelancerlarımızı 5,307 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.ETL stands for Extract, Transform and Load, which is the foundation of the data warehousing process. An ETL Expert is someone who understands the data requirements of an organization and helps create an efficient method of managing that data. This professional should be able to collect data from multiple sources, organize that data for use, and make sure that the data is clean and up-to-date with minimal downtime. An ETL Expert can also monitor, guarantee performance and optimize data delivery to facilitate best practices in a business environment.
Here's some projects that our expert ETL Experts made real:
An experienced ETL Expert makes these demanding projects look effortless, while also making sure that they are delivered with accuracy and care. With the right knowledge on hand ,they have the potential to make significant contributions by helping businesses expand their customer base by utilizing their exisiting resources effectively. We invite you to post your project in Freelancer.com and find an expert ETL Expert who will help your business reach new heights.
Müşterilerimiz, ETL Experts freelancerlarımızı 5,307 değerlendirme içinden 5 üzerinden 4.9 ile derecelendirdi.Estoy por arrancar una migración con Informatica PowerCenter y necesito apoyo directo en la construcción de los procesos ETL. El conjunto de datos con el que trabajaremos está en Oracle y lo extraeremos desde una base de datos SQL; el objetivo es una migración limpia, controlada y auditable hacia el nuevo esquema. Qué espero de ti • Diseñar y desarrollar mappings, sesiones y workflows en PowerCenter que cubran todo el flujo de extracción, transformación y carga. • Incluir manejo de errores, validaciones de calidad y registro detallado de eventos. • Documentar cada mapping en el repositorio y entregar un pequeño manual de despliegue/rollback. Aceptaremos el trabajo cuando: - Todos los procesos se ejecu...
Project Title: Hiring Experts for IT and Digital Transformation Roles Project Description: We are seeking highly qualified professionals to join our team for a comprehensive digital transformation initiative. The roles require expertise in IT, digital infrastructure, social protection, and legal frameworks. Below are the positions and their respective qualifications: 1. Senior Project Manager - PMP or PRINCE2 certification - 10 years of experience managing complex projects in IT/e-government 2. Principal IT Architect - Degree in Computer Engineering or equivalent, TOGAF certification - 10 years of experience as an enterprise architect with expertise in API, ETL, cloud technologies 3. Business Architects/Analysts - Degree or Master’s in Computer Security, Data Science, or Computer...
Help wanted: daily/multi-daily comparison of supplier prices and stock levels (B2B webshop) Text: We operate a B2B webshop where business customers can place orders or commission items on request. Most of the goods are sourced directly from manufacturers. For most suppliers we have access to their stock levels and current prices; for some, no login is required, while others require login credentials. We are looking for a solution or a skilled professional who can help us retrieve supplier prices and stock levels daily — ideally multiple times per day — and compare them with our internal purchase prices so we stay up to date. No automatic syncing with our system or automatic price changes are required. It is sufficient if discrepancies between supplier prices and our system pu...
I need a reusable ETL framework built inside Databricks notebooks, version-controlled in Bitbucket and promoted automatically through a Bitbucket Pipeline. All source data arrives via GraphQL APIs, so the job includes handling authentication, pagination, and schema inference before landing raw payloads in Delta tables. A dedicated cleaning stage must then standardise and validate the data before it moves on to the curated layer. The structure should be modular—ideally a bronze/silver/gold notebook hierarchy—so I can slot in new sources or extra transformations without touching the core logic. I also want a lightweight Python package (wheel) that wraps the GraphQL connector and can be attached to any cluster. Acceptance criteria • Parameter-driven notebooks organised by...
Job Title: NestJS Backend Developer – High-Performance Car Bulk Import (ETL) The Challenge We are looking for a senior-level NestJS developer to build a robust, production-ready car data import engine for our vehicle marketplace. This isn't a simple "upload and save" task; we require a sophisticated streaming pipeline capable of processing massive datasets (CSV, XML, JSON) with minimal memory footprint and high reliability. Core Task Build a POST /imports/cars endpoint that: Automatic Format Detection: Handles multipart/form-data and identifies the file type (CSV, XML, or JSON) programmatically. Stream-Based Processing: Processes data using Node.js Streams / AsyncIterables. The application should never load the full file into RAM. Data Pipeline: Implements a clean ...
- Designed automated ETL routines to standardize disparate source formats, reducing manual reconciliation time by 40%. Performed root‑cause analysis and cohort studies to identify process bottlenecks and cost drivers. Built enterprise dashboards with row‑level security, incremental refresh, and performance tuning; improved executive visibility into KPIs. Implemented and supported ERP reporting modules, mapped master data across modules, and led data migration and validation during upgrades. - Established validation rules, lineage documentation, and data quality KPIs to maintain trust in analytics. - Replaced manual spreadsheets with parameterized Power BI reports and scheduled dataflows, saving recurring effort and reducing errors. - Performance Metrics: Delivered dashboards that improved...
I’m standing up a brand-new business-intelligence stack in Snowflake and need a reusable migration framework built with dbt and solid SQL. The framework has to pull from two kinds of sources—existing relational databases and the steady stream of CSV/Excel flat files our teams export—then land, cleanse, validate, and automate each load all the way into analytics-ready tables. Here’s what I’m after: • A dbt project structured for easy extension, complete with models, seeds, macros, and tests that enforce data-quality rules at every stage. • Parameterised SQL and Snowflake tasks/procedures that orchestrate fully automated loads, from raw landing zones through staging to final marts. • Built-in monitoring and reporting—leveraging dbt tes...
I have an SSIS package that pulls data from an Oracle database through an connection and loads it downstream for ETL processing. The transfer works, but network-level performance is far below what I need. Here is what I’m looking for: • Diagnose the current ADO.NET-to-Oracle connection, identify any network, buffer, or packet-size bottlenecks, and benchmark the baseline throughput. • Tune the SSIS data flow (buffers, rows per batch, commit size, async settings, etc.) and, if necessary, adjust the Oracle driver or provider configuration. • Provide an updated package or detailed change list so I can reproduce the performance gains in other environments. • Produce a concise report summarizing findings, before-and-after metrics, and next-step recommendations....
Job Description We are looking for an experienced Azure Data Engineer / Data Integration Specialist to design and implement a robust, scalable data pipeline that pulls data from the Blackbaud API and loads it into an Azure SQL Database using Azure Data Factory (ADF). The goal is to have a fully automated, secure, and monitored ETL pipeline that runs on a scheduled basis and supports future scaling. Project Scope 1. Data Ingestion Connect to Blackbaud REST APIs (OAuth authentication) Handle pagination, rate limits, and API throttling Extract multiple endpoints (e.g., constituents, gifts, transactions, etc.) 2. Data Transformation Clean, normalize, and structure raw API JSON Handle nulls, schema drift, and data type conversions Add audit fields (load date, source system, batch id) 3. Data Lo...
REQUISITO EXCLUYENTE: Debes hablar español de forma fluida. Por favor, no apliques si no cumples este requisito, ya que la comunicación constante con el equipo es vital. Buscamos un experto freelance en Power BI y n8n para una colaboración a largo plazo. Tenemos múltiples proyectos de automatización en cola, pero comenzaremos con un Dashboard de Productividad operativo. Buscamos un perfil técnico que domine la integración de datos (ETL) y la visualización de alto nivel. El Primer Proyecto: Dashboard de Productividad El objetivo es añadir una sección a un reporte existente para calcular la productividad por operario. Fuentes de datos: Odoo 17 Enterprise: Extracción vía API de ausencias (vacaciones, baja...
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