Backend Developer (Data Processing)


Reports to: Platform Development Director

Employment Status: Full time

Location: City Center of Poznan – Poland


Company Overview

Do you subscribe to Netflix or ever purchase a live sporting event on Pay-Per-View? If so, you have a high chance of knowing already what Cleeng does.

Each month, nearly 2 million viewers from more than 100 countries in the world access a video platform secured by Cleeng. We work with sports federations, TV networks, broadcasters, and media companies to deliver an efficient, tailored, premium video experience. With our e-commerce heritage and market-leading video business solutions, highly motivated team in Amsterdam (HQ), NYC, Poznan, Sydney, Guadalajara (Mexico) and Manila, Cleeng is quickly becoming the indisputable leader in this space.


Working at Cleeng is rewarding, fun, and challenging. We thrive on innovation. If you want to join a fast growing business, and make a real contribution, come join our team and help shape the future of video consumption.


About the role:

To strengthen our Data Team in Poznan, we’re looking for a talented software engineer who has a passion for writing clean code and an understanding nuances of data processing.

Your mission:

To manipulate existing platform data to feed our data lake and leverage it to build a cutting edge analytics and predictive visualizations.


  • Building data manipulation tools to feed the data lake. You will be able to improve, operate and maintain certain functional domains of data processing using AWS stack.
  • You will be creating modules according to the best practices.
  • By leveraging smartly other tools, frameworks, partners and people you will deliver effectively your tasks and enhance the interoperability of all data lake features you are accountable for.

Required Skills/Experience:

  • Proven experience of commercial coding for at least 2 years (preferably Python, Scala, Node.js or PHP)
  • Abstract thinking for understanding, modeling and documenting complex processes.
  • A practical can-do mentality, with strong ability to get things done.
  • Good attitude and good sense of humor. 😉

Nice to have:

  • Data processing experience, knowing how data lake works
  • Knowledge of languages/tools: Spark, PySpark, Scala, Java
  • Understanding of good OOP practices (keywords: SOLID, DDD).

Our tech stack and organization:

  • Data lake is built using AWS stack (buzzwords):
    • EMR
    • Spark
    • Lambda
    • Aurora
  • Core backend is API-centric, mainly written in PHP 7.3
  • Infrastructure is hosted in AWS.
  • We organize our work with SCRUM.
  • We love sharing knowledge and improving our skills on internal workshops and trainings.

What we offer: 

  • Good salary package, one that fits your needs;
  • Flexible working hours and form of employment;
  • Possibility to work remotely;
  • 100 % paid sick leave with the agreed limits;
  • A great, full of energy and brand new space (Cleeng office) in the very middle of Poznan;
  • Equipment of your choice and additional accessories for your computer to make your work more efficient and comfortable;
  • Perks: private healthcare, sport’s card (Multisport), fully equipped kitchen, fresh fruit and vegetables, private bicycle parking and partially refunded costs of car parking;
  • Co-financed trainings and conferences;
  • Annual retreats, monthly integration events, free Friday lunches every second week;
  • Events celebrations: birthdays, annuals and others;
  • Possibility to use you English on a daily basis;
  • Possibilities to travel abroad;
  • Work with an international team of well – rounded experts in Amsterdam (HQ),  Poznan, Manilla, NYC, Guadalajara and Sydney. 16 nationalities and counting!
  • Work on unique, market leading, SaaS products, with clients all over the world, from New Zealand, Japan, Europe, US and Latam;
  • Work closely with people who value diversity, hard work, friendly relationships and love their jobs and get all together to the next level!

We are growing fast and need exceptionally talented, bright, and driven people ready to take up the challenge with us. If you’d like to help us to have an impact, this is your chance to make history.

Play the video and get to know us

Is your position not listed?

If you want want to learn how real global online start up works, if you are relaxed but professional, if you are eager to change the world, if you are ready to work hard and bring innovative ideas to the team, then, send us your CV and your motivation to

There are lots of reasons to work here

One talented and passionate team
Join a community of professionals who push each other to strive while enjoying what they do. We like to share knowledge, experience and inspire each other every day. We like to share our knowledge and experience. Be encouraged to share your ideas and perspectives!
Global scale
Diversity defines us. We have offices in The Netherlands, USA, Philippines, Australia, and Poland. Our different backgrounds and over 14 nationalities make our workspace a unique environment and a truly international experience.
Shape tomorrow's product
Don't just watch, participate in the future of premium content consumption. We are thriving in a booming and exciting industry where you could develop your skills.
Who said party?
Relaxed professionals, that’s our motto! Be part of a fun team. Expect dinners and meetups. Join our CS go or chess intercontinental tournaments. Travel the world to work face to face with your colleagues and enjoy the ride!
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