Backend Engineer [Freelance]

🏢 Equativ · 📍 Paris · 💼 hybrid · ⏰ Contractor

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Position Summary & Responsibilities

👫 About the team

At Equativ, we’re on a mission to develop advertising technologies that empower our customers to reach their digital business goals. This means that we rely on massively scalable, widely distributed, highly available, and efficient software systems; the platform deals with over 3 million requests per second (+250 billion/day) managed by 3,000 servers with less than 250ms response time.

Our innovation team based in Paris, Nantes, Bordeaux, Limoges, Krakow and Berlin is composed of 150+ straightforward and energetic engineers working in an Agile environment and ready to tackle the most complex technical challenges.

✏️ Your mission

You will join our Addressability team distributed in multiple locations. You will be onboarded in a multi expertise feature team of back-end developers and Data Engineers, with the mission to build and query a multi billion entry Id Graph, plug third party data providers and provide customers and business teams with advanced targeting and reporting features.

What you'll do ✏️

Ingestion of massive amounts of data high performance key value stores
Query user data millions of times per second with a response time of a few ms

🎯 Candidate Preparation Guide For Equativ Applicants

Key Role Competencies & Evaluation Highlights

Key Role Focus:

AdTech scalability, programmatic monetization expertise, and cross-functional execution in fast-paced revenue environments.

📋 Preparation Priorities (Key Areas to Clarify):

1. Blaming third-party cookie deprecation entirely for revenue drops without actionable workarounds
2. Sounding like a generalist marketer rather than a technical programmatic revenue expert
3. Lack of familiarity with publisher-side vs. buyer-side monetization dynamics

✨ Recommended Role Alignment Hook:

I’ve spent my career cutting through ad-tech latency and publisher yield leakage to directly scale programmatic revenue.

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