This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a SWE Infrastructure Specialist (Java) – Freelance AI Trainer Project based in Spain.

This role offers experienced Java engineers the opportunity to apply their infrastructure expertise to the advancement of next-generation AI systems.
You will contribute to improving how AI models understand enterprise software architectures, distributed systems, and cloud-based environments.
The position combines software engineering, systems analysis, and AI evaluation in a highly technical and research-driven setting.
You will challenge advanced language models with real-world infrastructure scenarios and assess their ability to reason about complex engineering problems.
Your expertise will help improve AI capabilities around scalability, reliability, performance optimization, and production-grade software design.
This is a remote contract opportunity for engineers passionate about shaping the future of AI through technical knowledge and practical experience.





Accountabilities:

The role focuses on evaluating and improving AI model performance in the context of Java-based software systems, infrastructure design, and enterprise engineering challenges. You will provide expert feedback, analyze technical reasoning, and help develop stronger AI understanding of complex software environments.
- Engage with advanced AI models on Java-focused infrastructure and platform engineering scenarios.
- Evaluate model-generated solutions for architectural correctness, scalability, reliability, and operational effectiveness.
- Analyze Java application design decisions related to concurrency, latency, throughput, and resource management.
- Review infrastructure approaches involving distributed systems, cloud-native deployments, and enterprise architectures.
- Assess testing strategies, deployment workflows, and reliability practices for Java-based systems.
- Identify an

📌 SWE Infrastructure Specialist (España)
🏢 Jobgether
📍 España