Backend Software Engineer

Responsibilities

• Build and maintain Golang services that power core product workflows
• Design APIs and data pipelines used by AI and reasoning systems
• Improve system performance, reliability, and observability
• Review and challenge designs to keep systems simple and scalable
• Debug production issues with speed and discipline

Requirements

• 5 plus years backend engineering experience
• Strong Golang experience in production systems
• Startup experience on a core product
• Experience working with data-heavy systems
• Comfortable using AI-assisted coding tools daily
• Fintech or investment domain exposure

Preferred Qualifications

• Experience supporting ML or LLM systems
• Distributed systems or low-latency data pipelines

About the Company

Reflexivity builds an AI-driven investment platform where scale, data complexity, and latency are critical to powering decisions involving real money.