Software Engineer, Agent Development

ActiveCampaign is seeking a Software Engineer to join their Krakow Hub and build production-ready AI agents for autonomous marketing. The role will drive the expansion of intelligent, agentic workflows that can reason, act, and adapt on behalf of customers. The engineer will work at the intersection of solid software engineering and applied AI, designing, building, evaluating, and operating agents that run at scale in a production marketing automation platform.

Requirements

• 2-4 years of experience in a software engineering role
• Hands-on experience building and running AI agents or agentic workflows in a production environment
• Experience with agent evaluation and performance optimization
• Solid backend development skills in Python; working familiarity with PHP is a plus
• Understanding of how to build reliable, testable, and observable systems
• Ability to work iteratively and ship code fast
• Familiarity with DB technologies: MySQL, DynamoDB, Redis
• Strong problem-solving skills and ability to work across multiple codebases and technologies
• Fluent in English (B2 minimum)
• Willingness to work flexible hours with regular afternoon availability to overlap with US Central timezone

Benefits

• Comprehensive Health & Wellness
• Growth & Development
• Generous Paid Time Off
• Total Rewards
• Collaborative Culture