5+ years of experience designing and engineering large-scale systems. Proficiency in Python. Experience with PostgreSQL, BigQuery, MySQL. Experience with TypeScript, React. Experience with Jest, React Testing Library, Cypress, pytest. Experience with AWS, GCP. Experience with ECS Fargate, Docker, Terraform, GitHub Actions. Bonus: Experience with transaction monitoring, financial crime prevention, AML, and fraud detection. Bonus: Familiarity with transaction systems, statements, and reconciliation processes.