About the Role

Cualquier información adicional que necesite para este trabajo se encuentra en el texto a continuación. Asegúrese de leerla detenidamente y luego envíe su solicitud.
We are looking for a Senior Rust Engineer to join our Barcelona team and contribute to building high-performance, real-time systems powering our ML-driven AdTech platform (Mobile Growth Platform).

In this role, you will work on core backend infrastructure and ML platform components, focusing on low-latency, high-load services that process large-scale traffic in real time.

You will play a key role in developing and optimizing systems such as real-time applications, feature stores, user identity services, and custom inference layers, ensuring scalability, reliability, and performance.

Responsibilities

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- Contribute to the development of real-time applications and ML platform components
- Build and maintain high-load, low-latency backend services
- Work on in-house solutions including:

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- Feature stores
- User identity services
- Custom inference layer
- ML platform infrastructure




- Optimize system performance across on-premise Docker & Kubernetes environments
- Design and implement solutions for traffic scaling and system reliability
- Collaborate with ML, data, and engineering teams to support production ML systems
- Continuously improve system architecture, observability, and efficiency
- Languages: Rust, Python
- Tools: GitHub

Requirements

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- 5+ years of experience in software engineering
- Strong proficiency in Rust or proficiency in C/C++/Zig with willingness to transition to Rust
- Experience designing and building high-load, performance-critical systems
- Solid understanding of system design, concurrency, and performance optimization
- Basic knowledge of machine learning workflows and tools

Nice to Have

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- System programming experience (C, C++, Zig)
- Experience in ML engineering / MLOps
- Familiarity with AdTech standards (OpenRTB, MRAID, VAST)
- Experience with WASM /

📌 Senior Rust Engineer (Barcelona)
🏢 Appodeal
📍 Barcelona