OpenX
OpenX
OpenX is an independent supply-side platform in the advertising technology sector, helping publishers and advertisers manage programmatic media buying and selling across channels such as connected TV. Founded in 2008, the company provides omnichannel targeting, identity, and data integration capabilities designed to support addressable advertising with greater transparency. OpenX also focuses on more sustainable media practices and responsible use of advertising technology. Its team works with marketers and media businesses to connect audiences with digital advertising opportunities beyond closed platforms.

Senior Python Software Engineer at OpenX - Remote in Poland

Build scalable Python cloud systems for OpenX’s digital advertising platform. Design distributed services, integrations, and high-scale audience data pipelines.

Description

  • Create high-performance distributed systems designed for low latency
  • Architect, build, and launch new features and product functionality
  • Partner with Product to define requirements and lead projects from inception through delivery
  • Work closely with distributed Engineering and Product teams across multiple locations
  • Evaluate and improve the efficiency, scalability, and reliability of servers and processes
  • Make durable architectural decisions instead of relying on short-term fixes
  • Spot avoidable complexity, assess existing approaches, and simplify systems
  • Develop scalable integrations that improve platform performance
  • Build and tune real-time services
  • Advance audience and segment capabilities across AI-assisted segment discovery, international targeting, contextual intelligence, data marketplaces, graph foundations, and scalable first-party segment pipelines

Requirements

  • At least five years of experience building SaaS applications with Python
  • Background in database system design using relational databases such as MySQL or Postgres, or NoSQL systems
  • Professional experience with Amazon Web Services or Google Cloud Platform
  • Strong understanding of cloud solutions, including system architecture analysis and cost considerations, or equivalent expertise with another cloud platform
  • Experience developing and working with REST or GraphQL APIs
  • Hands-on experience with Kubernetes, Docker, CI/CD, and SQL, including BigQuery
  • Effective communication skills in Polish and English
  • JavaScript or TypeScript and Java experience is advantageous
  • Experience using Airflow and Cloud Composer
  • Experience creating, maintaining, and updating DAGs for data-pipeline orchestration and automation
  • Experience in digital media, marketing technology, or advertising technology is a strong advantage

Benefits

  • Employment contract at 22,595-25,254 PLN gross per month or B2B engagement at 181-202 PLN net per hour
  • Opportunity to work with current technologies, including Google Cloud Platform
  • Technically demanding challenges that are uncommon elsewhere
  • Work on important problems at scale
  • Join a company that is growing and expanding
  • Flexible working hours with a remote-work option
  • Annual performance bonus
  • 75% tax-deductible system under copyright protection
  • Private health insurance for you and your family, covered by OpenX
  • Private life and travel insurance
  • MultiKafeteria benefits program
  • LinkedIn Learning access and technology workshops
  • Holiday allowance
  • Pension scheme through PPK from PZU
  • Additional paid day off
  • Free parking
  • Access to a peer-recognition platform
  • Monthly work-from-home allowance plus a one-time home-office setup payment when you join
  • Vouchers and gifts to celebrate important personal milestones

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