Senior Software Engineer, AI-Powered Internal Agents

Kraken; Portugal; On-site; EUR 90,000 - 130,000; Full time

Job summary

Kraken is building the Agent Systems team to create AI-powered agents that automate internal workflows and decision paths. You will design inference pipelines, prototype rapidly, and productionize valuable agent behaviors within robust backend services that integrate with multiple internal APIs.

The role emphasizes hands-on AI/ML work, strong backend fundamentals, and an appetite for experimentation while maintaining production-grade reliability.

Qualifications

• 5+ years of experience building and shipping production software systems.
• Strong backend engineering fundamentals (APIs, distributed systems, data modeling, reliability).
• Experience building fullstack systems, with comfort across backend and occasional frontend surfaces.
• Hands-on experience with AI/ML systems, LLMs, or inference pipelines in production.
• Ability to prototype rapidly while maintaining a clear path to production-grade architecture.
• Strong systems thinking — reason about orchestration, failure modes, and observability.
• Comfort operating in ambiguous, 0→1 environments with high ownership.

Responsibilities

• Build and ship AI-powered agent systems that automate internal workflows and decision paths.
• Design and implement inference pipelines that reason over user interactions across internal systems.
• Prototype quickly to validate agent behaviors, then productionize what proves valuable.
• Architect backend services that integrate with multiple internal APIs and data sources.
• Define patterns for safe, observable, and controllable agent execution.
• Collaborate cross-functionally to identify high-leverage automation opportunities.
• Improve system speed, reliability, and signal quality as usage scales.
• Contribute to foundational design decisions for a 0→1 agent platform.

Skills

Experience 5+ yrs

Backend fundamentals

Fullstack systems

AI/ML experience

Rapid prototyping

Systems thinking

Ownership in 0→1 projects

Job description

Kraken is building the Agent Systems team to create AI-powered agents that automate internal workflows and decision paths. You will design inference pipelines, prototype rapidly, and productionize valuable agent behaviors within robust backend services that integrate with multiple internal APIs.

The role emphasizes hands-on AI/ML work, strong backend fundamentals, and an appetite for experimentation while maintaining production-grade reliability.