Senior Software Development Engineer

Senior Software Development Engineer

About Media.net

Media.net is a leading, global ad tech company that focuses on creating the most transparent and efficient path for advertiser budgets to become publisher revenue. Our proprietary contextual technology is at the forefront of enhancing programmatic buying– THE industry standard in ad buying across digital platforms.

The Media.net platform powers major global publishers and ad-tech businesses at scale across ad formats like display, video, mobile, native, as well as search. Media.net’s U.S. HQ is based in New York, and the Global HQ is in Dubai. With office locations and consultant partners across the world, Media.net takes pride in the value-add it offers to its 50+ demand and 21K+ publisher partners, in terms of both products and services.

Media.net in 1 year

• 125B+ ads served
• 17M+ URLs monetized
• 1B+ ad clicks managed
• 6T+ ad impressions delivered

As a Senior Software Development Engineer on our Anti-Spam team, you will be the primary architect and defender of our platform's integrity. This is a high-stakes role requiring a "security-first" mindset and the ability to build high-concurrency systems that perform at high scale.

The Mission: High-Scale, Low-Latency Defense

Our system revolves around a continuous feedback loop of research, detection, and enforcement. We don't just detect spam; we stop it in its tracks. You will be responsible for a pipeline that captures signals from Tracking JS, processes them and executes real-time blocking decisions in less than 20ms.

Core Responsibilities

• High-Level System Design: Architect and maintain a distributed system capable of handling massive traffic spikes while maintaining a strict < 20ms response time for real-time blocking.
• LLM Integration: Implement Large Language Models across the stack—from analyzing complex behavioral patterns to automating the cleaning and classification of new spam signals.
• Signal Collection & Pipeline: Develop high-performance Tracking JS and Node.js backends to ingest data, and manage Python cron jobs for deep-dive signal generation.
• Data Analytics & Cleaning: Use sophisticated statistical models to validate signals and perform "post-hoc" analysis to ensure our automated defenses aren't catching innocent users in the crossfire.
• Polyglot Infrastructure: Manage a sophisticated data layer including ClickHouse (for massive analytical queries), MongoDB (for flexible metadata), and Redis (for ultra-fast real-time lookups) on GCP.

Technical Stack

• Languages: JavaScript (Tracking), Node.js (Backend), Python (Data/LLM orchestration).
• Databases: ClickHouse (OLAP), MongoDB (NoSQL), Redis (Real-time caching).
• Infrastructure: Google Cloud Platform (GCP).
• Experience integrating LLMs for classification and pattern recognition.