Agentic Platform Engineer

Your main responsibilities will include

• Agent Platform Development: Build and maintain the core Liz Agent runtime, including agent execution, context management, and event streaming.

• Tools & Integrations: Develop MCP tool servers, APIs, and integrations that enable secure access to internal data and services.

• Agentic AI Capabilities: Improve agent functionality through memory, multi-model routing, durable execution, and LLM frameworks.

• Reliability & Observability: Monitor platform performance, troubleshoot production issues, and improve tracing and evaluation capabilities.

• Platform Engineering: Contribute to APIs, service templates, CI/CD pipelines, and cloud-native deployments that enable teams to build agents independently.

• Security & Quality: Implement security best practices, automated evaluations, and regression testing to ensure reliable agent behaviour.

• End-to-End Ownership: Take responsibility for features from development to deployment and monitoring, collaborating with Data, ML, Platform, and Product teams.
  
  

What You’ll Need to Succeed

• 3+ years of experience building and maintaining backend systems in production.

• Strong Python expertise, including APIs, asynchronous programming, testing, and clean architecture.

• Hands-on experience developing LLM applications or AI agents, including tool calling, structured outputs, and evaluations.

• Solid understanding of event-driven architectures, microservices, Kubernetes, and cloud infrastructure.

• Experience with LLMOps, observability, CI/CD, and production troubleshooting.

• Knowledge of AI security practices, including authentication, access controls, and prompt-injection protection.

• Ability to own features end to end, work autonomously, and collaborate effectively with cross-functional teams.
  

Why Join Seedtag?

• A key moment of growth with real ownership and global impact.

• Flexible work model with 100% remote or hybrid options.
  (Remote contracts available in Spain, Italy, UK, Belgium, Netherlands, France, and Germany.)

• Continuous learning through a learning platform and optional language classes.

• A supportive, trust-based culture that values well-being.

• Team activities, offsites, and opportunities to connect beyond work.
  

Additional Perks

• Home office setup budget up to €1,000

• Paid trips to our HQ in Madrid

• MacBook Pro M3