Openx

Senior Software Engineer III (JavaScript)

Job Description

You will be part of the core exchange development team. Our exchange handles billions of ad requests daily connecting thousands of publishers with demand partners. It’s fully containerized running in the cloud in multiple regions across the world. Ads from our systems can be seen in your favored mobile game, or web page. That’s the place where each millisecond matters.

We are operating at a scale:
100% Cloud-based (GCP) platform
Over 370 billion Ad requests every day
Over 120 000 CPU daily
Over 140 TB RAM daily
Over 50 PB of data per week
Over 1200 production deployments a month


What we offer:
  • Employment contract (17 600 - 19 000 PLN gross/monthly) OR B2B (139 - 155 PLN net/hourly)
  • Working with the newest technologies such as Cloud Computing (GCP)
  • 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

    • Key responsibilities:
  • Design high-performance, distributed, low-latency systems
  • Architect, create, and deliver new features and functionality
  • Work with Product to drive the requirements, and own the project end-to-end
  • Work with Product and UX teams to bring consumer-grade user experience and design to the enterprise
  • Work with Engineering and Product teams distributed across multiple locations
  • Analyze and improve efficiency, scalability, and stability of servers and processes
  • Think long-term and be unsatisfied with band-aids
  • Identify unnecessary complexity and remove it

    • Required Qualifications:
  • 4+ years experience with building SaaS applications using JavaScript/Typescript
  • Experience with React
  • Experience with database system design, RDBMs, or NoSQL
  • Experience with Google Cloud Platform or Amazon Web Services - nice to have
  • Experience working in digital media, marketing technology, or advertising technology is a big plus
  • Communicative Polish and English

    • Desired Characteristics:
  • Good written & oral communication skills, excellence
  • Team player
  • Self-starter with the ability to independently identify and act on areas of improvement
  • Ability to rapidly learn and understand new systems

    • Our benefits (on employment contract):
  • Annual performance bonus
  • Tax-deductible system due to copyright protection: 75%
  • Private health care for you and your family (covered by OpenX)
  • Private life and travel insurance
  • 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 
  • 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)

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