Senior Software Engineer IV

Summary

Join OpenX, a company focused on maximizing the economic potential of digital media, and become part of a team experienced in designing and operating large-scale ad marketplaces. We are seeking creative and thoughtful individuals passionate about applying market design, technical innovation, and operational excellence to digital advertising. Our exchange processes billions of ad requests daily, connecting publishers and demand partners. We utilize cutting-edge technologies such as Cloud Computing (GCP) and offer flexible working hours and a remote work option. The role involves designing high-performance systems, developing new features, collaborating with product and UX teams, and improving system efficiency and scalability. OpenX provides a competitive salary, comprehensive benefits, and opportunities for professional growth.

Requirements

• 5+ years of experience with building SaaS applications using JavaScript/TypeScript (including Node.js)
• Experience with database system design, RDBMs, or NoSQL
• Excellent written and spoken English skills
• Communicative Polish and English

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

Preferred Qualifications

• Experience with developing back-end
• Experience with Amazon Web Services or Google Cloud Platform

Benefits

• 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)
• Flexible working hours & remote work option