Senior AI Infra Engineer - Rust & High-Scale Systems

Kraken; Portugal; On-site; EUR 110,000 - 150,000; Full time

Job summary

Kraken is seeking an AI Infrastructure Engineer to design and operate production systems powering intelligent agents at scale. You will build high-performance Rust services for model inference, orchestration, and execution, and ensure reliability for millions of users.

The role emphasizes observability, monitoring, and collaboration with cross-functional teams; you will optimize latency and costs while shaping foundational infrastructure decisions in a high-impact environment.

Qualifications

• 5+ years of experience building and operating high-scale production systems.
• Strong proficiency in Rust and systems-level programming.
• Deep understanding of distributed systems, reliability engineering, and performance optimization.
• Experience operating services serving millions of users or high-throughput workloads.
• Familiarity with ML infrastructure, model serving, or MLOps in production environments.
• Experience designing observability, monitoring, and failure recovery systems.
• Strong collaboration skills working across infrastructure and applied engineering teams.

Responsibilities

• Design and build the infrastructure layer powering AI agent systems in production.
• Develop high-performance Rust services that handle model inference, orchestration, and execution.
• Architect scalable systems capable of supporting millions of users and high request throughput.
• Build reliable ML infrastructure and MLOps patterns for model deployment, evaluation, and monitoring.
• Define guardrails, observability, and failure handling for agent-driven workflows.
• Optimize latency, throughput, and cost across inference and orchestration layers.
• Partner closely with the Agent Systems team to translate experimental prototypes into hardened production systems.
• Contribute to foundational infrastructure decisions in a high-scale, high-impact environment.

Skills

Rust

Systems-level programming

Distributed systems

Reliability engineering

Performance optimization

ML infrastructure / MLOps

Observability & monitoring

Collaboration across teams

Ownership mindset

Tools

Container orchestration

Cloud-native infrastructure

Job description

Kraken is seeking an AI Infrastructure Engineer to design and operate production systems powering intelligent agents at scale. You will build high-performance Rust services for model inference, orchestration, and execution, and ensure reliability for millions of users.

The role emphasizes observability, monitoring, and collaboration with cross-functional teams; you will optimize latency and costs while shaping foundational infrastructure decisions in a high-impact environment.