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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on rebuilding a cloud-based data platform from batch to a streaming-first architecture using Kafka, Databricks, Declarative Pipelines, Unity Catalog, Apache Iceberg. Responsibilities include designing and building the new platform, migrating batch workflows, maintaining the legacy platform stability, and architecting the serving layer. Required experience covers Databricks, Spark, and streaming technologies. The role involves working with business data and collaborating with ML and business teams.
Senior Data Engineer
Company: ROCKWOOL GBS
from: 22 June 2026
to: 22 July 2026
salary not specifiedcontract of employment (full-time)
Salary details
basic salary
holiday bonus
Offer parameters
level:senior
working mode:hybrid
Poznań, Wilda
Requirements
Expected technologies
Databricks
Azure DevOps
Optional technologies
Kafka
Our requirements
- 3-5+ years of experience in data engineering (the specific tech stack is flexible - we value your way of thinking and problem‑solving above tools)
- Strong consulting mindset or experience working closely with business stakeholders, with the ability to ask the right questions, challenge assumptions and translate business needs into technical solutions
- End‑to‑end ownership approach - from designing and building solutions to monitoring, improving and maintaining them
- Excellent communication and collaboration skills, enabling you to work effectively across teams and influence decisions
- Degree in Computer Science/Engineering or equivalent hands‑on experience
- Experience with Databricks, Spark and streaming technologies (e.g., Kafka) - a strong plus
- Proficiency in English at a minimum B2 level, spoken and written
Your responsibilities
You'll be the go-to Databricks expert on the team. You'll have important role in the migration from the legacy stack while designing and building the new platform in parallel – and “in parallel” is doing real work in that sentence.
The legacy platform runs. Not beautifully, but it runs – and it serves real business needs that can't wait for the migration to finish. You'll split your time between keeping it stable (and gradually less painful) and building its replacement. If the idea of legacy firefighting makes you want to close this tab, this probably isn't the right role. If you see it as part of the job and take quiet satisfaction in fixing things that are broken – read on.
You will work on:
- Design & build the new streaming platform (Kafka → Databricks with Declarative Pipelines)
- Migrate existing batch workflows from Airflow + Docker + on‑prem Databricks to cloud‑native architecture
- Keep the current platform stable while improving its reliability, performance and operability
- Architect the serving layer
- Govern data properly – Unity Catalog, lineage, access control, data quality – not as an afterthought
- Enable sharing across organization with Polaris and Iceberg
- Collaborate with data scientists, ML engineers, and business teams across regions
- Use AI tools daily – we use GitHub Copilot and internal homemade assistants/agents we build on our own within a team; we expect you to help the team get real value from them
About the project
Our data platform is already there in cloud, already in Databricks. But we’re not here to maintain the status quo – we’re rebuilding it from the ground up to jump into exciting world of real-time data and streaming.
We will migrate from a batch-oriented Airflow + Databricks to a streaming-first architecture: Kafka, Databricks with new cool features like Declarative Pipelines, Unity Catalog, Apache Iceberg / Polaris Catalog, and new serving layer, which you will help us to select.
This is a greenfield build inside a global company – real budget, real data, real stakes. No startup chaos, but real room to make meaningful architectural decisions.
This is how we organize our work
This is how we work
in houseyou focus on a single project at a timeyou can change the projectyou have influence on the choice of tools and technologiesyou have influence on the technological solutions appliedyou have influence on the product
Team members
big data developer
The team you will join
You will join our Data Science & Engineering Team, a group of 12 skilled professionals including the Team Leader. The team combines strong expertise in data engineering, analytics, and machine learning, and is structured into several project‑focused sub‑teams working across a variety of business areas.
What we offer
By joining our team, you become a part of the people-centric work environment of a Danish company. We offer you a competitive salary, permanent contract after the probation period, development package, team building events, activity-based office in Poznan’s city center in the new prestigious office building – Nowy Rynek. The building is recognized as a building without barriers, which means that it is fully adapted to the needs of people with disabilities.
Our compensation package for employment contracts includes:
… and while in the office you can also use modern office space with beautiful view and high standard furniture, bicycle parking facilities & showers, chill-out rooms with PlayStation, football table, pool table, board games, subsidized canteen with delicious food & fruit.
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
- remote work opportunities
- flexible working time
- fruits
- corporate products and services at discounted prices
- integration events
- corporate sports team
- saving & investment scheme
- corporate library
- no dress code
- video games at work
- coffee / tea
- drinks
- leisure zone
- holiday funds
- redeployment package
- birthday celebration
- employee referral program
- opportunity to obtain permits and licenses
- charity initiatives
- office massages
Recruitment stages
- 1.Phone interview with a Recruiter – 30 min
- 2.Technical interview with the Manager – 60 min
- 3.On-site meeting – 60 min
ROCKWOOL GBS
We are a global leader in stone wool solutions.
Our team of over 12,000 people across 40 countries delivers products to customers in more than 120 markets.
Our mission is to support sustainable development.
We help reduce energy consumption, noise, and fire risks - improving quality of life wherever our solutions are used.
The ROCKWOOL Global Business Services Center has been operating since 2016.
We started with 27 people, and today we are a team of over 600 - and still growing.
In Poznań, we are developing competence centers in areas such as IT, R&D, Engineering, Sourcing, and Digital Marketing.
This is how we work
Senior Data Engineer
I apply to:
ROCKWOOL GBS
Poznań, Wilda
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