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Big Data Engineer

  • By Agnieszka Gabzdyl
  • 9 December 2021
Who they are
The company is a top player in the AdTech industry in the World. They have seven offices located around the globe (in the US, the UK, Poland and Japan). They’re focused on unleashing the full economic potential of digital media companies. They do this by making digital advertising marketplaces and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
They’re one of the best cloud computing developers team in Poland.
Who they are looking for
The company is looking for a talented and highly motivated Big Data Engineer to help them innovate and improve their products. You will work in all aspects of agile application development, including both front-end and back-end systems. You will collaborate to design products that customers love.
If you’re:
– Open-minded – happy to give & receive feedback, not afraid to fail and move on
– Proactive – always want to find a satisfying solution
– Self-organized and self-motivated
They want to talk to you.
The Opportunity
You will work in all aspects of agile application development, including enterprise platform that interfaces with a multitude of services that are dependent on to deliver billions of requests per day. Your opinions will be important in all phases of product development, starting from requirements to validation and deployment.
Working on the enterprise platform, you will be working with multiple distributed teams to architect, create, and deliver new features and functionality in order to deliver the best possible advertising experience in the market. Scalability, performance, and rock-solid reliability are all factors to consider with every line you code.
The Team and Project:
You will be part of the core data development team. Their exchange handles billions of ad requests daily connecting thousands of publishers with demand partners. Each request produces data events that have to be processed to extract business value from them. Daily their applications produce more than 1PB of data.
Please note: all interview stages are run remotely

What they offer

  • Working with the newest technologies such as Cloud Computing (GCP)
  • Experienced Team (50% of the company are senior developers!)
  • Challenges at work that are difficult to find anywhere else!
  • Solving important problems in a scale
  • Joining a company that is growing and scaling
  • Flexible working hours & remote work option


  • Annual performance bonus
  • Tax-deductible system due to copyright protection
  • Private health care for you and your family (covered by the company)
  • Private life and travel insurance (Covid insurance included)
  • MultiKafeteria program
  • Training: access to the LinkedIn learning platform and Tech workshops
  • Holiday Allowance
  • Pension scheme (PPK from PZU)
  • Additional paid day off
  • Free parking lot
  • Sports activities: online yoga/stretching classes 🙂
  • Access to peer to peer recognition platform
  • Possible trips to California once in a while
  • Company events (online during the pandemic time)

Key responsibilites

  • Design large-scale data processing systems
  • Work with Product to drive the requirements, and own the project end-to-end
  • Analyze and improve efficiency, scalability, and stability of applications
  • Think long-term and be unsatisfied with band-aids
  • Identify unnecessary complexity and remove it

Required Qualifications

  • Ideally 5+ years experience in Java development for large scale Hadoop environments including performance tuning and monitoring
  • Expertise using an appropriate mix of applications in the big data ecosystem (Kafka, Spark, Hadoop MapReduce, Hive, YARN, Zookeeper, HBase, and other NoSql products)
  • Experience with databases system design, RDBMs and/or NoSQL
  • Cloud experience with Google Cloud Platform or AWS, k8s, and Docker
  • Fluently speak algorithms, data structures, and platforms (Linux)
  • Bachelor’s degree in computer science, physics, or related field. A Master’s degree is a plus.
  • Communicative Polish and English

Desired qualifications/characteristics:

  • Be comfortable using the right tools and languages for the job, even brand new ones
  • Have the ability to develop scalable, modular applications
  • SCRUM / Agile environment experience
  • Experience working in digital media, marketing technology or advertising technology is a big plus
  • Good written & oral communication skills
  • Good sense of humor
  • Team player
  • Self-starter with the ability to independently identify and act on areas of improvement
Company at a Glance
They company is focused on unleashing the full economic potential of digital media companies. They do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At the company, they have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and they are constantly on the lookout for thoughtful, creative executors who are as fascinated as they are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
The company Values
Their five company values form a solid bedrock serving to define them as a group and guide the company. Their values remind them that how they do things often matters as much as what they do.
They are one
One team. No exceptions. They are a group of strong and diverse individuals unified by a clear common purpose.
Their customers define them
They know theirs business flourishes or dies because of theircustomers.
The company is mine
They are all owners of the company. They stake their personal and professional reputations on the excellence of their work.
They are an open book
They are eager to teach and share what they know with others.
They evolve fast
They take risks and confront failure openly. They recognize and repeat success aggressively. They actively seek out and provide constructive criticism.

Note: Prepare your CV in English (PDF), fill in the form, and apply! 🙂
Please include in your CV the following clause necessary for the recruitment process:

“I agree to the processing of personal data that I have made available voluntarily in the recruitment process by the Administrator of personal data, i.e. Dotcommunity Spółka z ograniczoną odpowiedzialnością [Ltd.] based in Cracow, 15 Żabiniec Street, 31-215 Cracow, registered in Poland, the Cracow’s District Court – Śródmieście, XI Commercial Division of the National Court Register under number 0000468484, VAT number: 9452174499, (“Dotcommunity”) in order to carry out the recruitment process for the Big Data Engineer on the basis of Art.6 item 1a of the Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation)”