Senior Big Data Engineer (AdTech Cybersecurity)

• Optimize Snowflake usage and improve infrastructure cost efficiency
• Identify inefficiencies in data pipelines and SQL queries
• Implement performance and cost optimization improvements
• Enhance and maintain Java-based services
• Implement and support new platform features
• Improve existing engineering processes and platform components
• Develop scalable and reliable solutions for high-load environments
• Contribute to architecture improvements and implementation of new components
• Collaborate with distributed engineering teams to deliver stable platform functionality
• At least 5 years of commercial experience in Big Data engineering
• Strong hands-on experience with Snowflake
• Strong expertise in Python
• Strong expertise in Java
• Advanced SQL knowledge and experience optimizing complex queries
• Solid Computer Science fundamentals
• Upper-Intermediate or higher English level

WILL BE A PLUS

• Experience with AWS cloud services
• Experience working with Amazon S3
• Experience in AdTech, cybersecurity, fraud detection, or risk assessment domains

PERSONAL PROFILE

• Proactive and ownership-driven mindset
• Strong analytical and troubleshooting skills
• Ability to work effectively in fast-paced environments
• Team-oriented communication style
• Focus on scalable and maintainable engineering solutions