Senior Big Data Engineer (AdTech Cybersecurity)
About The Position
We are looking for a Senior Big Data Engineer to join a long-term project in the cybersecurity and AdTech domain focused on real-time risk assessment for digital advertising ecosystems. You will have the freedom to influence technical decisions and drive meaningful improvements across the platform. The project is a real-time risk assessment platform for digital advertising ecosystems. The solution helps customers identify potentially low-quality or fraudulent traffic and automatically make decisions before allocating advertising budgets. The platform processes large-scale data streams and requires continuous improvements in performance, scalability, and cost efficiency. At the initial stage, the role will focus on Snowflake optimization and identifying inefficiencies in data pipelines and SQL queries. In the long term, the engineer will contribute to backend development, platform architecture improvements, and implementation of scalable Java-based services.
Requirements
- 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
Nice To Haves
- Experience with AWS cloud services
- Experience working with Amazon S3
- Experience in AdTech, cybersecurity, fraud detection, or risk assessment domains
- 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
Responsibilities
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
