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 scale100% 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
ProjectAt OpenX Poland, we’re looking for talented and curious engineers to join our amazing team in Cracow, Poland. Currently, we’re looking for a Software Developer in Test (JavaScript) who will join our Platform team. You will have a chance to work in some aspects of application development, including our highly efficient and available serving platform, and your opinions will be considered in certain phases of product development, starting from requirements to validation and deployment. You will assist other engineers (for example from the Data Science team) to ensure that our processes are defined, documented, tested, and easy to use.
Within the team, you will have the opportunity to work closely with other SDETs focusing on different domains (both frontend and backend), as well as be a part of the QA Guild focusing on making impactful changes to our tools and processes.
The team is using the following technologies:Frontend: JS/TS, React, Material UIAPI: PythonBackend: Java, Go, Erlang, ElixirCICD: Cloudbuild, Spinnaker 

What we offer

• Employment contract (17 000-20 000 PLN gross/monthly) or B2B (140-175 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 option

Key responsibilites

• Test large-scale programmatic advertisement platform
• Involve in all phases of product development, starting from requirements to validation and deployment
• Analyze and improve the efficiency, scalability, and stability of applications
• Work in a focused and nimble team that collaborates on common problems across products and across focus areas
• Own components, processes, and workflows that demand professionalism, excellent communication, teamwork, and documentation skills
• Create, maintain, and improve automation test suites/frameworks
• Monitor and maintain QA CI pipelines, collaborate on CD enablement
• Conduct root cause analysis of issues and provide solutions for better coverage and maintainability
• Effectively communicating and being a crucial member of both the project teams and QA organization
• Be exposed to a broader set of problems, which allows for fast career growth and proximity to abundant technical problems

Required qualifications

• 3+ years of test automation experience
• Proficiency in JavaScript and ability to improve, debug, modify, and maintain an automation framework codebase
• Openness to work with other languages like Python
• Experience in using test design techniques
• Experience using CI/CD tools like Jenkins or Spinnaker
• Excellent troubleshooting skills to triage complex issues
• Experience operating in an agile environment
• Communicative Polish and English languages 

Nice to have

• Experience Google Cloud Platform, k8s, and docker
• Experience in UI/UX testing
• Experience in API testing 
• Pytest framework experience
• Familiarity with advertising technologies and the advertising ecosystem
• Knowledge of machine learning, particularly with Tensorflow, TFX, and Kubeflow

Our benefits (on employment contract)

• Annual performance bonus
• 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, Tech workshops, English lessons
• 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)
• Tax deductible cost: 75%

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 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.
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.
OpenX Applicant Privacy PolicyApplicants can review our Applicant Privacy Policy at any time by visiting the following link: https://www.openx.com/privacy-center/applicant-privacy-policy/.
Effective Date: March 1, 2022