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Junior Data Engineer

Reeeliance · Hamburg

On-siteJuniorPosted 19 Sept 2026

What this role requires

3 requirements, read out of the advert rather than guessed from the job title:

Also mentioned, not required: Azure, AWS, German (C1), English (B2). Worth having, but their absence is not what gets a CV filtered out.

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Job description

About the role Data is undeniably one of the world's most valuable resources. However, it's futile if it's not in the right place or the right setup. We strive to place data where it's needed most and can be used to its fullest potential.

Become a valued member of our data integration team and start your journey building scalable data architectures and fast data pipelines for our multinational clients. Our use cases range from data warehouse and lakehouse architecture implementations over IoT and data streaming setups to sophisticated AI scenarios, in industries ranging from manufacturing, consumer products, and healthcare to banking and insurance, just to name a few.

Your responsibilities You will support the team in designing, building, and maintaining data pipelines according to client business needs and embedding them end-to-end into the given data stack

On this role, you will assist in maintaining and optimizing data infrastructure required for data extraction, transformation, and loading (ETL/ELT) from a wide variety of data sources

As a junior Data Engineer, you will build, test, and deploy data artifacts on cloud platforms using modern version control best practices

You will collaborate with senior engineers to ensure data accuracy, integrity, privacy, security, and compliance by applying data quality assurance methods

Read the full description (22 more sections)

Monitoring data pipeline performance and assisting in identifying opportunities for pipeline optimization

In this role, you will work closely together with both reeeliance and client staff as part of an agile project team

Our requirements Solid foundational knowledge of data modeling concepts and modern data warehousing architectures

Proficiency in Python and strong SQL skills for querying and manipulating complex datasets

Hands-on experience with Git for version control and collaborative development

Practical exposure to or understanding of working within cloud environments (such as Azure or AWS)

Eagerness to learn new ETL/ELT tools, cloud technologies, and software engineering practices

Strong problem-solving attitude and an enthusiastic, proactive approach to learning

Ability to work both independently on delegated tasks and collaboratively within agile project teams

A university degree in Computer Science, Information Technology, or a related discipline (or equivalent practical experience)

Articulate with impeccable verbal and written communication skills in German (C1 level) and English (B2 level). Strong & discerning listener

What we offer Space to grow: Taking ownership in international projects while continuously expanding your skills

Mentorship and Onboarding: Structured introduction supported by dedicated mentor

Cutting-edge workspace: Work with the latest technology and modern equipment to drive innovative solutions

Long-term stability: A permanent employment in a family-oriented and people-focused company

Diverse & inclusive environment: Join a truly international environment and collaborate daily with teammates from over 15 different nationalities

Balance matters or work-life harmony: A work schedule designed to promote well-being and productivity

Team culture & connection: Social events and structured team-building days held in Berlin and Hamburg

Language courses: Learn, improve or practice your conversational skills on language platform Lingoda

Never stop learning: You’ll receive a dedicated budget to industry-leading platforms like Udemy and MasterClass to sharpen your technical expertise and leadership skills

…and many other Job perks (childcare subsidy, company pension scheme, job bike, etc…)

Find more English Speaking Jobs in Germany on Arbeitnow

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