Job Type






Big Data Engineer Kraków


OpenX Kraków Poland

2 months ago

Who we are looking for

OpenX is looking for a talented and highly motivated Software Engineer to help us innovate and improve our 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 and set OpenX apart.

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

We want to talk to you.

The Opportunity

You will work in all aspects of agile application development, including our 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. Our 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 our applications produce more than 1PB of data.

Please note: all interview stages are run remotely

What we 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 & hybrid work option (we would like you to come to the office once every two weeks)

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 4+ years of experience in Scala 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)
• 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

Our benefits
• Annual performance bonus
• Tax-deductible system due to copyright protection
• Private health care for you and your family (covered by OpenX)
• Private life and travel insurance (Covid insurance included)
• MultiKafeteria program
• Training: access to the LinkedIn Learning platform, Tech workshops, English lessons
• Holiday Allowance
• Pension scheme (PPK from PZU)
• Additional paid day off
• Free parking lot
• Access to peer to peer recognition platform
• Monthly work-from-home allowance and one-time payment when you join us to help you set up your home office
• We celebrate team members' important personal milestones (vouchers, gifts
Kraków Poland

Salary Criteria












Copyright © 2023 Fonolive. All rights reserved.