Software Engineer III

Job Summary

Joining a remote-first team, the full-time Software Engineer III will focus on developing and maintaining backend services in Python, building components of the rule evaluation engine, and creating React interfaces for merchants and internal users.

Key responsibilities

• Build and own components of the rule evaluation engine, including authoring rules and evaluating them at scale
• Develop backend services in Python (FastAPI) to handle high-throughput, low-latency workloads
• Design and evolve data models that support auditability, versioning, and reproducibility of rule outcomes

Required qualifications

• 6+ years of professional software engineering experience, with at least 2 years of full-stack feature development
• Strong Python backend skills, with preferred experience in FastAPI or a comparable async Python framework
• Hands-on experience with event-driven systems (Kafka or equivalent) in production
• Solid PostgreSQL skills, including schema design and query performance
• Production-level React experience, including state management and backend API integration