Technology 2 Technology 2

JavaScript - Backend Software Engineer

Katowice, Poland

Job Description

Job Title:
JavaScript - Backend Software Engineer
Katowice, Poland
Full-Time, Permanent
Software Engineering

What's your new role about?

Do you want to have an impact on a product that is used by millions of users across multiple devices on a daily basis? 
Our tech works seamlessly, 24/7, and is cutting-edge, scalable and resilient. Our people are dedicated, flexible and fast-moving, rising to every challenge that streaming to a global audience of fans brings. 

We make learning a fundamental part of the job. Our industry-leading experts continually share their expertise with their colleagues and the wider industry. We host lightning talks, brown bag sessions, hackathons and more, and you’ll see our people speaking at conferences and events around the world. We’re an active part of the technology community and put a strong focus on innovation.  

Lateral thinking and innovation aren’t just encouraged here. They’re essential. 

As a team, we work on services that are in the heart of company's focus, helping to drive the engagement of our fans on the platform. We are responsible for the backend part of features that allow our clients to search through the available content and follow their favourite teams whenever they play. The work we do has an immediate effect on the clients experience, as well as on the business. 


  • Develop new and existing backend services (in the team we mainly focus on functionalities such as follow, search and content restriction based on age) 
  • Support other developers with their day-to-day work  
  • Deliver high quality, robust and testable code adhering to internal engineering procedures, code conventions and development methodologies  
  • Design architecture for new features along with architects  
  • Contribute to comprehensive documentation that supports the development and support lifecycles  
  • Work to continually improve software deployment to ensure iterative releases and rapid deployment of updates to our customers across all platforms  
  • Monitor system performance and resolve any issues or failures in staging or production environments 


  • In-depth knowledge of JavaScript 
  • Experience designing and building REST APIs 
  • Experience with databases (relational or non-relational) 
  • Commercial experience working in a cloud-based environment (preferred AWS)  
  • Knowledge of asynchronous processing (queues / multithreading / multiprocessing) 
  • Attention to details and ability to independently work and deliver working solutions 
  • Strong team-player mindset 
  • Very good command of English 

Even better if you have:

  • AWS - in particular services such as Lambda, ECS, S3, DynamoDB, SQS, SNS, API Gateway, Elasticache, Cloudfront 
  • Infrastructure as a code (experience with Terraform / CloudFormation) 
  • TypeScript  
  • Design patterns such as dependency injection / inversion of control (especially in the context of Node.js
  • ElasticSearch 
  • Serverless framework 

Benefits will include:

  • Access to DAZN streaming service
  • Tax incentive
  • Annual performance-related bonus
  • Annual leave increasing by 3 days after 3 years
  • Private medical and dental insurance (fully financed by DAZN)
  • Life assurance
  • Pension scheme (Pracowniczy Program Emerytalny)
  • MyBenefit platform (MultiSport and thousands of sports, culture or tourism benefits)
  • Financially rewarding ‘Refer a Friend’ scheme
  • Family-friendly community
  • Opportunity for flexible working
  • Employee Assistance Program (psychological, managerial, legal and financial counselling)
  • Free access for you and one other to our workplace mental health platform app (Unmind)
  • Learning and development resources
  • Access to our internal speaker series and events
  • High-end laptops (Macs or Windows)

Here's a little more about us…

At DAZN, we bring ambition to life. We are innovators, game-changers and pioneers. So if you want to push boundaries and make an impact, DAZN is the place to be.
As part of our team you'll have the opportunity to make your mark and the power to make change happen. We're doing things no-one has done before, giving fans and customers access to sport anytime, anywhere. We're using world-class technology to transform sports and revolutionise the industry and we're not going to stop.
If you're ambitious, inventive, brave and supportive, then you're the kind of person who's going to enjoy life at DAZN.
We are committed to fostering an inclusive environment, both inside and outside of our walls, that values equality and diversity and where everyone can contribute at the highest level and have their voices heard. For us, this means hiring and developing talent across all races, ethnicities, religions, age groups, sexual orientations, gender identities and abilities. We are supported by our talented Employee Resource Group communities: proud@DAZN, women@DAZN, disability@DAZN and ParentZONE.
If you’d like to include a cover letter with your application, please feel free to. Please do not feel you need to apply with a photo or disclose any other information that is not related to your professional experience.
Our aim is to make our hiring processes as accessible for everyone as possible, including providing adjustments for interviews where we can.
We look forward to hearing from you.