Company at a GlanceOpenX is focused on unleashing the full economic potential of digital media companies. We do this by making digital advertising markets and technologies that are designed to deliver optimal value to publishers and advertisers on every ad served across all screens.
At OpenX, we have built a team that is uniquely experienced in designing and operating high-scale ad marketplaces, and we are constantly on the lookout for thoughtful, creative executors who are as fascinated as we are about finding new ways to apply a blend of market design, technical innovation, operational excellence, and empathetic partner service to the frontiers of digital advertising.
We are operating at a scale:100% Cloud-based (GCP) platformOver 400 billion Ad requests every dayOver 120 000 CPU dailyOver 140 TB RAM dailyOver 50 PB of data per weekOver 1200 production deployments a month
Project:OpenX is looking for a talented and highly motivated Senior Software Engineer to help us innovate and improve our products. You will work in all aspects of agile application development, including our enterprise platform that interfaces with a multitude of services that are depended 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. The Team is focused on various aspects of ad requests/responses processing and optimizing the oRTB auctions. This role also includes leadership responsibilities, such as working closely with the product manager to clarify business requirements and leading the technical layer of the project.
You will have the possibility to work with: Docker, Kubernetes, Java, Erlang, Go, CI/CD, GitHub, Google Cloud Platform and its services like GKE, Cloud Build, BigQuery, etc.
Please note: all interview stages are run remotely! 

What we offer:Employment contract (21 250 - 25 000 PLN gross/monthly) OR B2B (167 - 196 PLN net/hourly)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 & remote work optionKey ResponsibilitiesIdeally 5+ years of working experience in JavaDesign high-performance, distributed, low-latency systemsArchitect, create and deliver new features and functionalityWork with Product to drive the requirements, and own the project end-to-endAnalyse and improve efficiency, scalability, and stability of servers and processesThink long-term and be unsatisfied with band-aidsIdentify unnecessary complexity and remove itOwning and leading the technical layer of the projectRequired Qualificationsideally 5+ years of working experience in JavaExperience with database system design, RDBMS, or NoSQLExperience with Google Cloud Platform, k8s, and Docker is a big advantageCommunicative Polish and English Ability to effectively dive into technologies other than Java (Erlang, GO)Desired CharacteristicsFluently speak algorithms and data structures and platforms (Linux)Be comfortable using the right tools and languages for the job, even brand-new onesHave the ability to develop scalable, modular applicationsSCRUM / Agile environment experienceExperience working in digital media, marketing technology, or advertising technology is a big plus.Our benefits (on employment contract):Annual performance bonusTax-deductible system due to copyright protection: 75%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 and Tech workshops Holiday AllowancePension scheme (PPK from PZU)Additional paid day off Free parking lot Access to peer to peer recognition platformMonthly work-from-home allowance and one-time payment when you join us to help you set up your home officeWe celebrate team members' important personal milestones (vouchers, gifts)OpenX VALUESOur five company values form a solid bedrock serving to define us as a group and guide the company. Our values remind us that how we do things often matters as much as what we do.
WE ARE ONEWe are one team. There are no exceptions. We are a group of strong and diverse individuals unified by a shared mission. We embrace challenges and win together as a team. We respect and care about our colleagues and cultivate an inclusive culture
WE ARE CUSTOMER CENTRICWe innovate on behalf of our customers. We understand, respect, and listen carefully to our customers. We build great products to solve our customers’ problems. We manage our customers’ expectations clearly and honestly. We are a trusted partner to all of our customers - we act with integrity at all times. We care.
OPENX IS OURSWe are all owners of OpenXWe all have a voice to improve OpenXWe stake our personal and professional reputations on the excellence of our workWe are not interested in just "doing our jobs"; we take ownership to drive results
WE ARE AN OPEN BOOKWe understand and respect what each of us does. We are eager to teach and share what we know with others, both internally and externally. We are eager to learn from others and we ask questions internally and externally. 
WE EVOLVE FASTWe take responsible risks and own and learn from our mistakes. We recognize and repeat success. We actively seek out and provide constructive feedback. We adapt quickly and embrace change. We tackle growth and learning with real urgency. We are endlessly curious.
OpenX is committed to equal employment opportunities. It is a fundamental principle at OpenX not to discriminate against employees or applicants for employment on any legally-recognized basis including, but not limited to: age, race, creed, color, religion, national origin, sexual orientation, sex, disability, predisposing genetic characteristics, genetic information, military or veteran status, marital status, gender identity/transgender status, pregnancy, childbirth or related medical condition, and other protected characteristic as established by law.
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Effective Date: April 18, 2024