Tomas Baidal

Data Platform Engineer

Berlin, Germany

Interactive CV ↗

Data Platform Engineer who owns ingestion, warehouse, transformation, BI, scheduling, and governance end-to-end. Currently rebuilding MILES Mobility's platform in Berlin—solo data engineer on a small team, shipping with Terraform, dbt, and observability built in. Previously scaled analytics infrastructure at Trade Republic Bank. Bachelor's in Applied Data Science from UOC.

Experience

MILES Mobility GmbH Berlin, DE · Sep 2025 — Present
Data Analytics Engineer
  • Own the data platform end-to-end: ingestion, warehouse, transformation tooling, BI, scheduling, observability, and governance—as the sole data engineer on the team.
  • Led rearchitecture of AWS and Snowflake with Terraform (IaC); migrated legacy systems, deployed Airbyte OSS and custom connectors, and run platform services on EKS (Metabase, OpenMetadata, Cube, Temporal, Langfuse).
  • Built the governed analytics layer: dbt models with tests, Cube as semantic layer, OpenMetadata for lineage and cataloguing, and Metabase for BI—so metrics are reproducible and auditable.
  • Orchestration with Temporal and GitLab CI/CD; Kafka for event-driven ingestion where stream processing fits the use case.
  • Applied AI selectively on the platform itself—Langfuse for LLM observability, automated triage workflows, and internal agentic tools—where tasks are repeatable and verifiable.

Snowflake · dbt · Cube · Terraform · Kafka · Temporal · Airflow · Airbyte · AWS EKS · Metabase · OpenMetadata · Langfuse · GitLab CI/CD · Python

Trade Republic Bank GmbH Berlin, DE · Jan 2022 — Sep 2025
Analytics Engineer — Operations & CX Jan 2023 — Sep 2025
  • Designed and maintained ELT pipelines on AWS and Airflow at scale across millions of customers—batch ingestion into Snowflake with dbt transformations and tested models.
  • Built operational datasets in dbt covering customer care KPIs, agent performance, and metrics surfaced through Looker and Metabase.
  • Led technical ownership of Zendesk: platform architecture, custom app development, and workflow automation via Zendesk Integration Services (ZIS).
  • Integrated third-party platforms (NextMatter, AI chatbot tools) via REST APIs; partnered with product engineering on event data and operational automation.

AWS · Airflow · dbt · Snowflake · Looker · Metabase · Zendesk ZIS · Python

Platforms & Applications Specialist Jan 2022 — Jan 2023
  • Owned the Customer Service technology stack, including Zendesk administration, UltimateAI configuration, and API integrations with third-party tools.
  • Automated repetitive support workflows and built custom Zendesk apps to improve agent efficiency and data quality.
  • Acted as the technical bridge between the CX team and engineering, translating operational needs into scalable platform solutions.

Zendesk · UltimateAI · API integrations · Python

Stack

Languages
Python · SQL · R · Java
Warehousing & OLAP
Snowflake · Redshift · PostgreSQL · MongoDB
Transformation
dbt · Spark · Hadoop
Stream & Orchestration
Kafka · Airflow · Temporal · GitHub Actions
Cloud & IaC
AWS (EKS, S3, Lambda, Glue) · Terraform
DevOps
Docker · GitLab CI/CD · Git · Terraform
BI & Semantic Layer
Metabase · Cube · Looker · Superset
Governance & Observability
OpenMetadata · data contracts · lineage · Langfuse

Certifications

AWS Certified Cloud Practitioner AWS Certified Solutions Architect – Associate

Education

Bachelor of Science — Applied Data Science
Universitat Oberta de Catalunya (UOC)

Graduated with foundations across statistics, probability, machine learning, deep learning, NLP, data mining, and big data. Coursework in Java, Python, R, SQL, Hadoop, Spark, OLAP, and linear algebra, with applied projects in customer analytics, A/B testing, multivariate analysis, and distributed data processing.

Volunteer

Data Analytics Instructor Nov 2023 — Jun 2024
ReDI School of Digital Integration

Taught Python, Statistics, and Machine Learning to newcomers and locals as part of ReDI's free tech education program — a non-profit focused on digital skills and job integration for underrepresented communities in Germany.

Languages

Native
Spanish · Catalan
Professional
English · German (C1)