Data Quality Engineer

Appodeal is a dynamic US-based product company with a truly global presence.

We have offices in Warsaw and Barcelona, along with remote team members located around the world.

Our company thrives on diversity, collaboration, and innovation, making us a leader in the mobile app monetization space.

Why Appodeal?

At Appodeal, we’re more than just a company—we’re a team united by a common mission: to enable creators to start and scale successful mobile app businesses.

We take pride in our cutting-edge product and our internationally dispersed team of talented professionals.

Here’s what we value, and what we hope you do too:

• Continuous Learning and Growth: We are passionate about learning, growing personally, and building rewarding careers.
• Making an Impact: We are committed to building a history-defining company that leaves a lasting impact on the mobile app industry.
• Solving Exciting Challenges: We tackle complex problems every day, supported by a team of world-class professionals and mentors.
• Enjoying the Journey: We believe in having fun while working toward our goals.

We are looking for a skilled Data Quality Engineer to join our Vector team in Barcelona.

In this role, you will be responsible for ensuring the quality, reliability, and accuracy of our data infrastructure, enabling seamless data flow and accessibility for machine learning (ML), analytics, and business needs. You will work closely with our team to build, maintain, and optimize data quality processes and pipelines, ensuring the highest standards are met.

Why Choose Us?

• Fast Personal and Career Growth: We foster a work environment that supports rapid personal and professional development.
• Elite Team: Work alongside a small but powerful team of top-tier specialists.
• Autonomy and Trust: You will have full ownership of your role, with complete trust from your manager to make impactful decisions.

If you're passionate about data quality and enjoy continuous learning and growth, we encourage you to apply!

Key Responsibilities:

• Develop, implement, and maintain data quality frameworks, ensuring the accuracy, completeness, and consistency of data across all platforms.
• Collaborate with data engineers, data scientists, and business teams to identify data quality issues and design solutions to address them.
• Establish and monitor data quality KPIs, ensuring that data quality metrics meet business and regulatory standards.
• Conduct root cause analysis and troubleshoot data inconsistencies or anomalies.
• Automate data validation processes and develop tools to improve data quality workflows and reporting.
• Document data quality policies, standards, and processes to ensure continuous improvement and transparency.

Requirements:

• 3+ years of experience in data quality, data engineering, or a related field.
• Proficiency in SQL and experience with data management tools and frameworks.
• Knowledge of Python or other scripting languages for data processing and validation.
• Experience with data quality tools and platforms (e.g., Great Expectations, DBT, or similar).
• Strong understanding of data governance, data integrity, and compliance best practices.
• Based in Barcelona / willing to relocate to Barcelona or work remotely.
• Willing to work in the office during the first months, with the potential for hybrid work thereafter.

Nice to Have:

• Hands-on experience working with various data formats (Parquet, Delta, ORC, CSV, etc.);
• Knowledge of ETL tools and processes for data cleaning, transformation and loading;
• Familiarity with data quality tools such as (Great Expectations, Deequ, Soda);
• Understanding of big data principles and distributed systems like Hadoop, Spark, Kafka;
• Proficiency in Python, Java or Scala for automating tests and data processing tasks.

We’re looking for:

People with an analytical mindset are welcome, possibly strong analysts with experience in AdTech who are looking to transition into Data Engineering (DE) or Data Quality Engineering (DQE) roles.

How to Apply:

If you’re excited about this opportunity and believe you’re a great fit, please submit your resume and a cover letter explaining your interest in the role.

With an outstanding product and a mission that excites and inspires, Appodeal offers a unique opportunity to make an impact while being part of an amazing team.

Join us and help shape the future of mobile app success!