Mid Data Engineer (Barcelona hybrid)

Reposted 23 Days Ago
Be an Early Applicant
Barcelona, Cataluña, ESP
Hybrid
Mid level
Information Technology • Consulting
The Role
Maintain and extend distributed ETL pipelines and BigQuery datasets, build and operate REST microservices, optimize analytical queries, operate AI-powered tooling, and ensure backward compatibility across authentication flows.
Summary Generated by Built In

We are:
Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit?

Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Responsibilities:

Existing platform (Databricks)

  • Keep production pipelines running: ingestion, transformation, and delivery to downstream consumers.
  • Diagnose and resolve pipeline failures and data quality issues, often without documentation to fall back on.
  • Reverse-engineer and document existing transformation logic and business rules — this is the input the migration depends on.
  • Migrate legacy tables from Hive Metastore to Unity Catalog.
  • Maintain Iceberg-enabled table sharing between Databricks and Snowflake.

New development (Snowflake, dbt, Airflow)

  • Build and test dbt models, including incremental materializations and data tests.
  • Develop and maintain Airflow DAGs for orchestration.
  • Validate that migrated pipelines produce output equivalent to the Databricks versions.
  • Contribute to Snowflake modeling, performance, and cost decisions.

Across both

  • Work directly with client stakeholders on technical topics, alongside the team lead.

Technical Requirements

Databricks

  • PySpark and SQL — able to read, debug, and modify existing pipelines. Deep Spark tuning is not required.
  • Delta Lake: MERGE/upsert patterns, table properties, OPTIMIZE, partitioning.
  • Databricks Workflows, cluster configuration, job troubleshooting.
  • Unity Catalog: catalogs, schemas, grants, lineage, and the metastore model.

Snowflake

  • Warehouses, roles and grants, and the general operating model.
  • Query performance and an awareness of how compute cost behaves.

Dbt

  • Models, sources, tests, and incremental materializations.
  • Project structure and how dbt fits into a deployment workflow.

Airflow

  • Writing and maintaining DAGs, operators, scheduling, and dependency management.
  • Understanding retries, backfills, and idempotent task design.

Fundamentals

  • 3+ years operating production data pipelines.
  • Strong SQL — window functions, complex joins, reading transformation logic written by someone else.
  • Python for scripting, automation, and API integration.
  • Incremental loading patterns, idempotency, late-arriving data, reprocessing.
  • AWS: S3, IAM basics. Basic working knowledge of Redshift and its role in the wider architecture.

Ways of working

  • Fluent English — client-facing role with stakeholders based abroad.
  • Self-directed. Able to make progress on an unfamiliar codebase without a structured onboarding path, and comfortable asking good questions when context is missing.
  • Clear communicator: can explain a production incident to a non-technical stakeholder and give a realistic ETA.

Nice-to-have:

  • Experience with an actual platform migration, not only greenfield work.
  • Open table formats, particularly Iceberg and cross-platform sharing.
  • Clickstream or web analytics data (Adobe Analytics, Google Analytics, Segment).
  • Experience taking over an undocumented system and stabilizing it.
  • AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows. 

What we offer:

  • A High-Impact Environment
  • Commitment to Professional Development
  • Flexible and Collaborative Culture
  • Global Opportunities
  • Vibrant Community
  • Total Rewards

*Specific benefits are determined by the employment type and location.

Find out more about our culture here.

Skills Required

  • Experience with Scala and Apache Beam
  • Proficient in Python and building services with FastAPI
  • Unit testing with pytest
  • Experience with Google Cloud Platform (App Engine, Cloud Functions v2, Cloud Build, Dataflow, Pub/Sub, GCS, Cloud SQL)
  • BigQuery schema design, analytical queries, and dataset management
  • Experience building and operating distributed ETL (Apache Beam / Google Dataflow)
  • Experience with data lakes
  • CI/CD knowledge and tooling experience
  • Container tooling: Docker and minikube
  • Familiarity with Git submodules and gcloud SDK
  • Experience building REST microservices (Akka HTTP or Python)
  • Maintain backward compatibility across authentication flows
  • Nice-to-have: ApacheBeans
  • Nice-to-have: Kafka
  • Nice-to-have: Dataflow (if not already covered)

Wizeline Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Wizeline and has not been reviewed or approved by Wizeline.

  • Healthcare Strength Core coverage spans medical, dental, vision, life and disability insurance, with private medical commonly included in Mexico. Additional support such as EAP and wellness programs is also referenced.
  • Leave & Time Off Breadth Paid vacation, holidays, sick leave, volunteer time, and parental leave are called out, alongside flexible or remote work options. Unlimited PTO is mentioned in some contexts.
  • Retirement Support Savings and retirement elements appear across regions, including a 401(k) in the U.S. and a savings fund and profit sharing in Mexico. These components provide structured long-term financial benefits.

Wizeline Insights

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The Company
HQ: New York, NY
1,444 Employees
Year Founded: 2014

What We Do

Wizeline, a global technology services provider, builds the best digital products and platforms at scale. We focus on measurable outcomes, partnering with our customers to modernize core technologies, mature data-driven capabilities, and improve user experience.

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