Big Data Engineer

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Big Data Engineer

We need someone to step up and manage our data landscape!

Do you eat ETL pipelines for breakfast? And build scalable data architectures for lunch?

Then we are looking for you!

This is your opportunity to contribute to a large-scale, complex product and see the real-time impact of your work on hundreds of thousands of users worldwide.

Help the Bricks win the battle against mechanical keys and take us with you on your data journey!

Full-time · Clay Solutions

Clay Solutions, a SALTO Group Company is a software company that has built and developed the revolutionary wireless cloud-based locking solution ‘SALTO KS’ (SALTO Keys as a Service). With our self-build API’s we strive to facilitate industry leaders all around the world to integrate cloud-based access control into their business, specified to their needs.

As you can imagine, with over 1.5 million daily lock openings and 140.000 access points spread over 65+ countries we have a lot of data to structure, analyse and maintain.

That is why we need you!

We need someone that knows how to take on the hybrid role of engineer and data specialist and can set up a foundation for our Big Data infrastructure and tools. We need this foundation to predict future events and behaviors and enable the company to perform "what if" analyses. This way we can foresee the effects of possible changes in our products.

Moving forward you will develop and maintain our Data platform, the structure and create new constructions for new projects. You understand a single mistake can lead to serious performance issues and you take this into account before building your dataset. You are analytical, and therefore you design your data architecture on a strategic level.

Company-wide decisions might be taken based on your insights. We need to see results from a big chunk of data, and most of the time, we need it fast. You collect the right data, process it, and generate insights.

Long story short: you will become our go-to person when it comes to our data platform.

But what will you do?

You will be working in an exceptional team and an open company culture. Your daily responsibilities include:

  • Build our data infrastructure.
  • Share insights and results internally.
  • Perform data queries.
  • Give informative tech talks to the team where you share important technical details.
  • Define new and exciting team goals based on your learnings.
  • Be the go-to person with regards to our data platform.
  • Improve our brand new data environment (called CDP, Clay Data Platform).
  • Maintain data quality and ensure to flag data anomalies.
  • Integrate external data sources to warehouses such as CRM systems, databases and APIs.
  • Data cleaning, transformation, and visualisation.

Technical skills and expertise
  • At least one year of experience within a data team, with knowledge of best practices in the data world.

  • Experience with BI tools and data visualization e.g., PowerBI, Tableau, Apache Superset

  • Experience with software development in an object-oriented language (e.g., C#, C++, Java)

  • Understanding of cloud services, application infrastructure, and containerization (Preferred: Docker, Kubernetes, Azure, Terraform).

  • Experience in designing and building data warehouses.

  • Familiarity with ETL pipelines and Big Data architecture.

  • Able to perform data analysis.

  • Knowledge in Apache Spark, Hive, Delta Lake (Preferred: Azure Databricks).

  • Proficiency in Python, SQL and NoSql. 

How we work

Global movements are created by united teams that work hard, think smart, and move at a fast pace. As an agile team with a growth mindset, we work with structured methods. We use hundreds of post-its a week, and always look for ways to improve our products. Our flow goes something like this, slightly changing from team to team:

You'll be working with... 


Project Manager


Software Engineer


Product Owner


Managing Director

Working at Clay means becoming a ‘Brick’, and that means joining an international team of passionate professionals (we’re proud to say we have over 20 nationalities in our fairly small team) who take initiative, own responsibility and share expertise.

At Clay Solutions we live by our core values

  • Innovation is in our veins; we strive for the best, we aim high.
  • We communicate openly, transparently and thoughtfully.
  • Each of us takes ownership and responsibility for our work.
  • We lead with kindness and by example; we bring out the best in each other.
  • When in doubt we act with courage, take intelligent risks and make wise decisions.
  • With endless curiosity we keep learning and improving, while knowing to seek assistance for rapid advancement.
  • We’re stronger together. As a team we’re passionate, collaborative, playful and proud.
  • To achieve the greatest we keep it simple, take small steps and always work smart.

We expect everyone in our team to bring

  • Team spirit; enjoying working with a diverse group of people with different expertise
  • A keen eye for detail; working at a fast-pace environment, managing and prioritizing goals
  • A high bar for excellence and pride in work
  • Eagerness to learn and investigate possibilities and applying insights from past experience
  • Self-discipline, professional attitude and collaborative spirit
  • Individuality and willingness to share ideas and new perspectives

Wondering what it’s like to work at Clay Solutions?

Clay is a tight-knit team of technology lovers and innovative thinkers. Our team consists of over 20 nationalities (and growing), from a wide variety of backgrounds, working on some of the most challenging problems in the access control industry.

To read some of the benefits Clay Solutions offers check out our Careers page. But to give you some more insight into life at Clay here it goes; it’s great to have the ability to make an impact from day one, share ideas and shape the road map together. We work from our awesome office in Amsterdam, collaborate closely with Salto Systems in Spain, and serve our customers globally.

At Clay we are encouraged to build ourselves along with our fast-growing company. This can be in the form of trainings, coaching, conferences and more. We grow together! We know best is yet to come. Everyone on this team has a voice, we support each other's curiosity and we’re encouraged to not only participate and speak up, but also to lead and drive.

Beware; we work hard, play hard. Don’t underestimate either of those! We are honest, love a good joke, and don’t take things personally. And as a tight-knit team, together we form the solid house that is Clay Solutions.