Data Engineer Senior
hace 3 semanas
We are looking for a talented professional to join our team at Derevo.
**About the role:**
We are seeking a highly skilled Data Engineer Senior to lead our data engineering efforts. The ideal candidate will have at least 5 years of experience in designing, implementing, and maintaining data management and storage systems.
**Key responsibilities:**
Collect, process, and deploy large datasets, understand ER data models, and integrate with multiple data sources. Analyze, communicate, and propose different data storage solutions, data lakes, and Big Data solutions for clients.
**Requirements:**
English B2+ or higher (you will lead projects 100% in the language, so it is essential to have a high level of spoken and written proficiency).
**Technical Proficiencies:**
**SQL:** Data Definition Language, Data Manipulation Language, Intermediate/advanced queries for analytical purposes, Subqueries, CTEs, Data types, Joins with business rules applied, Grouping and Aggregates for business metrics, Indexing and optimizing queries for efficient ETL processes, Stored Procedures for transforming and preparing data, SSMS, DBeaver
**Python:** Experience in object-oriented programming, Management and processing datasets, Use of variables, lists, dictionaries, and tuples, Conditional and iterating functions, Optimization of memory consumption, Structures and data types, Data ingestion through various structured and semi-structured data sources, Knowledge of libraries such as pandas, numpy, sqlalchemy, Good practices when writing code
**Databricks / Pyspark:** Intermediate knowledge in Understanding narrow and wide transformations, actions, and lazy evaluations, How DataFrames are transformed, executed, and optimized in Spark, Use DataFrame API to explore, preprocess, join, and ingest data in Spark, Use Delta Lake to improve the quality and performance of data pipelines, Use SQL and Python to write production data pipelines to extract, transform, and load data into tables and views in the Lakehouse, Understand the most common performance problems associated with data ingestion and how to mitigate them, Monitor Spark UI: Jobs, Stages, Tasks, Storage, Environment, Executors, and Execution Plans, Configure a Spark cluster for maximum performance given specific job requirements, Configure Databricks to access Blob, ADL, SAS, user tokens, Secret Scopes, and Azure Key Vault, Configure governance solutions through Unity Catalog and Delta Sharing, Use Delta Live Tables to manage an end-to-end pipeline with unit and integration tests
**Azure:** Intermediate/Advanced knowledge in Azure Storage Account: Provision Azure Blob Storage or Azure Data Lake instances, Build efficient file systems for storing data into folders with static or parametrized names, considering possible security rules and risks, Experience identifying use cases for open-source file formats like parquet, AVRO, ORC, Understanding optimized column-oriented file formats vs optimized row-oriented file formats, Implementing security configurations through Access Keys, SAS, AAD, RBAC, ACLs, Azure Data Factory: Provision Azure Data Factory instances, Use Azure IR, Self-Hosted IR, Azure-SSIS to establish connections to distinct data sources, Use of Copy or Polybase activities for loading data, Build efficient and optimized ADF Pipelines using linked services, datasets, parameters, triggers, data movement activities, data transformation activities, control flow activities, and mapping data flows, Build Incremental and Re-Processing Loads, Apache Kafka, Azure Event Hubs, or AWS Kinesis: Intermediate/Advanced knowledge in Architecture and fundamental concepts of event streaming platforms, including producers, consumers, topics, partitions, and consumer groups, Configuration, deployment, and management of event streaming clusters/services for high availability, scalability, and fault tolerance, Performance tuning and optimization of event streaming clusters, including message retention, partition sizing, and data replication, Implementing common usage patterns such as asynchronous messaging, real-time stream processing, and end-to-end data pipelines for real-time data ingestion and processing, Security best practices for event streaming platforms, including encryption, authentication, and access control mechanisms
**Personal qualities:**
We value people who are adaptable and proactive, who are not afraid to learn and adapt to new technologies and methodologies. We are looking for people who can analyze problems and communicate effectively in uncertain environments.
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