Senior Agentic Platform Engineer

Your main responsibilities will include

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

• Tools & Integrations: Develop MCP tool servers, APIs, and authentication and policy services to enable secure agent access to internal data and capabilities.

• Agentic AI Innovation: Enhance agent capabilities through multi-model routing, memory, durable execution, and LLM frameworks.

• Reliability & Observability: Ensure platform stability, performance, and production debugging through monitoring, tracing, and evaluation tools.

• Platform Architecture: Define scalable APIs, service patterns, CI/CD pipelines, and cloud-native deployment standards that enable teams to build agents independently.

• Security & Quality: Implement robust security controls, prompt-injection protection, automated evaluations, and regression testing.

• Technical Leadership: Drive architectural decisions, mentor engineers, and collaborate with Data, ML, Platform, and Product teams.
  
  

What You’ll Need to Succeed

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

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

• Hands-on experience developing LLM applications or AI agents in production.

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

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

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

• Proven ability to lead technical decisions, mentor engineers, and work autonomously in a collaborative environment.
  

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