Senior Full Stack Data Engineer - Hybrid Krakow

We are looking for a Senior Full Stack Data Engineer to design, build, and productionize data-driven web applications and reporting tools. The role combines frontend development, backend Java services, and data engineering to deliver scalable, reliable analytics solutions. Send CV to (marcillina.tietjen@dcvtechnologies.co.uk)

Client: Global technology leader (search & data products)

Location: Kraków, Poland

Work mode: Hybrid – 3 days/week onsite (Kraków)

Contract type: B2B

Key Responsibilities

Frontend / Full Stack

• Build, test, and productionize web applications and reporting tools

• Develop interactive dashboards and data visualizations using:

  • Angular

  • TypeScript

  • Dart

  • d3.js / Dart charts

• Collaborate closely with product and data stakeholders

Backend & Data Engineering

• Design and develop Java-based web services and APIs

• Architect and maintain scalable ETL pipelines processing large volumes of logs and data

• Create and manage derived tables and materialized views for optimized reporting

• Integrate multiple services and systems into seamless data workflows

Production & Reliability

• Perform end-to-end testing to ensure quality, reliability, and performance

• Maintain technical documentation, system designs, and data lineage

• Develop and follow production playbooks (deployment, monitoring, on-call)

✅ Required Qualifications

• 10+ years of professional software engineering experience

• Strong full stack development background

• Frontend:

  • Angular

  • TypeScript

  • Dart

• Data visualization:

  • d3.js

  • Dart charts

• Backend:

  • Java (web services, APIs)

• Data engineering:

  • ETL pipeline design

  • Processing large-scale logs / datasets

  • Derived tables & materialized views

• Experience with:

  • End-to-end testing

  • Writing clear technical documentation

  • Production support & reliability practices

⭐ Nice to Have

• Experience with large-scale data platforms in global tech environments

• Familiarity with workflow orchestration

• Experience integrating multiple services and systems