Senior JavaScript Engineer in OpenX

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

We’re looking for a talented, communicative, and curious engineer to join our amazing team in Cracow, Poland. Currently, we’re looking for a Senior Software Engineer (JS/TS).

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!

• 5+ years experience with building SaaS applications using JavaScript/Typescript (including Node.js) along with a Bachelor’s degree in Computer Science or equivalent degree
• Experience with database system design, RDBMS (MySQL, Postgres), or NoSQL
• Experience with Amazon Web Services or Google Cloud Platform - nice to have
• Experience with Python - nice to have
• Experience working in digital media, marketing technology, or advertising technology is a big plus
• Excellent written and spoken English skills

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


We’re looking for a talented, communicative, and curious engineer to join our amazing team in Cracow, Poland. Currently, we’re looking for a Senior Software Engineer (JS/TS).


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!

,[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 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, analyze existing solutions] Вимоги: JavaScript, TypeScript, Node.js, RDBMS, Google Cloud Platform, Python Інструменти: Jira, Confluence, GitHub, GIT, Cloud Build, Agile, Scrum. Бонуси та переваги: Small teams, International projects, Private healthcare, Lunch card, Multikafeteria, Life & group insurance, Flat structure, Free coffee, Canteen, Bike parking, Playroom, Shower, Free snacks, Free beverages, Free lunch, Free parking, In-house trainings, Modern office, No dress code.