Company at a Glance

OpenX 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.

You will be part of the core data development team. Our exchange handles billions of ad requests daily connecting thousands of publishers with demand partners. Each request produces data events that have to be processed to extract business value from them. Daily our applications produce more than 1PB of data.

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.

We are operating at a scale:

100% Cloud-based (GCP) platform
Over 400 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

What we offer:

Employment contract (17 000 - 19 000 PLN gross/monthly) OR B2B (139 - 155 PLN net/hourly)
Working with the newest technologies such as Cloud Computing (GCP)
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 responsibilities:

Test large-scale data processing systems
Work with Product to drive the requirements, and own the project end-to-end.
Think long-term and be unsatisfied with band-aids.
Identify unnecessary complexity and remove it.
Involved in all phases of product development, starting from requirements to validation and deployment
Analyze and improve efficiency, scalability, and stability of applications
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 communicate 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 Java and ability to improve, debug, modify and maintain an automation framework codebase
Experience with SQL
Experience using CI/CD tools like Jenkins, Spinnaker, or Cloud Build
Experience in using Google Cloud Platform, k8s, and docker
Excellent troubleshooting skills to triage complex issues
Experience operating in an agile environment
Bachelor’s degree in Computer Science or equivalent degree

Nice to have:

Familiarity with advertising technologies and the advertising ecosystem
Familiarity with high-volume data platform and technology stacks such as Druid, Spark, Kafka and etc.

Our benefits (on employment contract):

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)

OpenX VALUES

Our 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 ONE

We 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 CENTRIC

We 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 OURS

We are all owners of OpenX

We all have a voice to improve OpenX

We stake our personal and professional reputations on the excellence of our work

We are not interested in just "doing our jobs"; we take ownership to drive results

WE ARE AN OPEN BOOK

We 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 FAST

We 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 TRAITS

Our three traits capture what makes a great team member at OpenX.

HUMBLE

Ideal team players are humble and demonstrate integrity. They put the team's success above their own, share credit generously, and value collective achievements. They are self-assured, open to coaching, and committed to continuous learning.

DRIVEN

Ideal team players are results-driven and motivated. They are curious, always seeking more to do, learn, and take on. As proactive problem-solvers, they take initiative without needing external motivation. They continuously think about the next steps and opportunities for improvement.

SMART

Ideal team players are smart and possess the intellectual acumen to understand the complexities of our organization and industry. They are interpersonally intelligent, good communicators, and exemplify sound judgment in their interactions across the company to foster a collaborative environment.

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 Policy

Applicants 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 of the Privacy Policy: November 21, 2024