PHP Backend Developer (Intern)


Location: Poznan

Company Overview
At Cleeng, we’re working each day to enhance the way people consume online TV and videos. Cleeng empowers content owners, broadcasters and publishers to fully embrace the potential of videos!  Since our founding in 2011, we’ve have been serving global brands such as FIFA, Final Fantasy, One Championship, Foxtel, and the Tennis Channel to monetize their videos through PPV Live and Subscription VOD. 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 have an impact, this is your chance to make history. 

We will provide
We will give you a real challenge for which you’ll become the owner, backed up by an experienced team, working for a real business environment. You will get the amazing opportunity to develop your skills in many ways extremely fast! If you prove to have the energy like us and succeed with your project, we might want you to stay and offer you a long-term position!

You are going to learn:

  • How to apply good principles of Object-Oriented Programming (like Domain-Driven Development) in real-life product.
  • How to write easy to understand, scalable and secure code.
  • How to work with large, complex codebase (300 000+ lines of code).
  • How to design and effectively deliver modern, API-driven application.
  • How to work in SCRUM.


  • Building REST APIs using PHP.
  • Migrating legacy code do modern, API-driven solution.
  • Maintaining existing codebase.
  • Building API for managing subscription offers.
  • Migrating reporting system to RabbitMQ.
  • Performance optimization of SQL queries.

What we require:

  • Basic knowledge of PHP and MySQL.
  • Basic knowledge of Object – Oriented programming.

Nice to have:

  • Understanding of object-oriented concepts like SOLID.
  • Basic understanding of writing effective SQL.

Our tech stack and organization:

  • Backend is API-centric, mainly written in PHP 7.3, but you can choose a language of your preference. We love Serverless!
  • MySQL and Redis for data storage.
  • Infrastructure is hosted in AWS.
  • We organize our work using SCRUM.
  • We love sharing knowledge and improving our skills on internal workshops and trainings.

Start Date:  ASAP

What do 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 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 your English on a daily basis;
  • Possibilities to travel abroad;
  • Working with truly 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!

Play the video and get to know us

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!