Senior Software Engineer, AI (remote - Spain)

Justworks is seeking a Senior Software Engineer, AI to join a small, highly autonomous cross-functional team to build AI agents that fundamentally transform how operations work at scale. The ideal candidate will be able to take ownership of large segments of the technology stack, make pragmatic technical decisions in ambiguous and emerging territory, and consistently ship high-quality, production-ready systems that our users rely on every day.

Requirements

• Design, build, and own core components of the agent platform
• Build and evolve the capabilities layer: APIs, data access patterns, and service integrations for agents to execute operational workflows
• Architect the knowledge and memory infrastructure, allowing agents to retrieve the data and act across our systems
• Design and implement the trust and safety framework
• Contribute to agent evaluation and testing infrastructure
• Mentor other engineers on the team

Benefits

• Wellness program offerings
• Company retreats
• Ability to interact with and learn from leaders in the startup community
• Great benefits