Valtech

Senior Data Engineer

Valtech
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1 month ago
Sofia, BulgariaSenior

Responsibilities

  • Design and implement scalable batch, streaming, and near-real-time data platforms and pipelines on AWS with Databricks or Azure/Fabric with Databricks or native Fabric tooling.
  • Build ingestion, transformation, curation, lakehouse, and medallion-layer workflows for structured and unstructured data.
  • Deliver production-grade datasets and pipelines for analytics, machine learning, causal modeling, optimization, GenAI, RAG, vector-based data flows, and agent-based systems.
  • Design logical and physical data models and orchestrate workflows using Airflow, dbt, Databricks Workflows, Azure Data Factory, or equivalent tools.
  • Apply architecture, governance, lineage, quality, access-control, and observability practices across data platforms.
  • Enable data-serving layers, APIs, feature inputs, and analytical endpoints for downstream ML and AI platforms.
  • Monitor and optimize pipelines and infrastructure for performance, scalability, reliability, and cost efficiency.
  • Partner with stakeholders to discover, refine, and challenge business requirements and translate them into robust data solutions.
  • Collaborate with data scientists, ML engineers, analysts, platform teams, and business stakeholders and contribute to data and AI best practices.

Requirements

  • Strong hands-on experience with Apache Spark and Delta Lake, plus strong programming skills in Python and SQL.
  • Proven experience building batch and streaming data pipelines and production-grade data platforms.
  • Strong understanding of data modeling, data quality, governance, lakehouse architectures, distributed data systems, scalability, reliability, and performance.
  • Deep hands-on experience with either AWS data services such as S3, Glue, EMR, Redshift, Kinesis, and Lambda plus Databricks, or Microsoft Azure/Fabric services such as Data Factory, Synapse, Fabric Lakehouse, and Azure Databricks.
  • Curiosity, strong problem-solving skills, detailed analysis, experience-based recommendations, and the ability to derive and challenge business requirements.
  • Collaborative experience working with cross-functional teams; Agile or consulting experience is beneficial.
  • Experience with both AWS and Azure/Fabric, Databricks and native Fabric tooling, GenAI data systems, RAG pipelines, vector databases, LLM data preparation, CI/CD for data pipelines, Terraform, or CloudFormation is a plus.
  • Additional experience with Kafka, Spark optimization, causal or experimentation platforms, advanced analytics and ML workloads, data products, or large-scale analytics platforms is valuable.

Benefits

  • Hybrid work options and 25 vacation days.
  • Co-subsidized transportation and Multisport cards.
  • Premium health insurance.
  • Training policy covering technical and skills-related events, courses, and certifications.
  • Personal career development roadmap guided by performance evaluations.
  • Self-care program with psychological consultations and team discussions.
  • Cozy office space and team events and company gatherings.

Tech Stack

Amazon RedshiftApache AirflowApache KafkaApache SparkAWSAzureDatabricksdbtGoogle Cloud PlatformMLflowPythonSnowflakeSQLTerraform

Categories

Data Engineering
Valtech

About Valtech

5,001-10,000 employees

Valtech provides digital consulting and engineering services to large enterprises, delivering customer experience design, commerce platforms, data/AI solutions, and transformation programs. It works across sectors such as retail, financial services, manufacturing, mobility, health, and travel, offering strategy, design, build, and managed services. Founded in 1993, Valtech is a global company privately held under Kharis Capital.

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