V

Senior Backend Engineer, Performance (Bidding & Pacing)

vibe.co • European Union
Relocation
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Join the Performance team to own the bidder and pacer stack for a high-scale Streaming TV advertising platform. You will design and ship measurable improvements to auction dynamics, pacing accuracy, and win rates. Requirements include production experience with strongly typed languages, distributed systems, and probabilistic modeling.

Key Highlights
Own the full decision loop from prediction to bid price and pacing
Build the playbook for CTV performance advertising in a high-growth environment
Reduce system fragility by distributing critical expertise across the engineering team
Key Responsibilities
Own and map the bidder and pacer stack end-to-end to identify and fix fragilities
Propose and implement autonomous improvements to the bidder or pacer from definition to design
Ship measurable improvements to CPx, pacing accuracy, or win rate within the first three months
Distribute critical system knowledge to make the team faster and less dependent on single individuals
Challenge existing designs and push for cleaner, more scalable solutions
Deepen team expertise in probabilistic modelling and PID control theory
Utilize AI tooling to accelerate development and iterate quickly in production
Technical Skills Required
Distributed Systems Probabilistic Modeling Pacing Algorithms
Benefits & Perks
Salary €127,000-€171,000
Variable pay
Relocation support to Paris
Health insurance via Alan
Meal vouchers via Swile
Annual offsite
Tech Syncs
Nice to Have
Experience in a scale-up environment
Production ML systems (feature pipelines, model serving)
Real-time data pipelines and low-latency architectures at scale
Experience with Redis, Kafka, or equivalent under heavy load

Job Description

Streaming TV is no longer just a brand awareness channel. It’s becoming a core part of the performance marketing mix, alongside search and social. Vibe.co is building the platform that makes TV work like the rest of the acquisition stack: targeted, measurable, and optimized for results.Vibe.co is an that gives marketers the tools to reach the right audiences, optimize campaigns in real time, and understand what’s actually driving business outcomes. With hyper-targeted segmentation, AI-powered recommendations, real-time optimization, and incrementality measurement, Vibe brings the precision and accountability of digital advertising to the biggest screen in the house.
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