Senior Software Engineer, Back-End (Payments)
Core
Build, scale, and evolve the payments infrastructure powering transactions across the Collectors ecosystem, including grading orders, vaults, and partner payouts.
Role type
Senior Software Engineer (Back-End Payments)
Builds
Payment APIs, web application experiences, and multi-gateway integrations (Stripe, PayPal) for a global collectibles marketplace.
Domain
Fintech / Payments / Collectibles
Required skills
C# (.NET), React, Svelte, TypeScript, PostgreSQL, DynamoDB, AWS, Kubernetes, Kafka, PCI-DSS compliance, distributed systems architecture, observability (Datadog), AI-assisted development
Preferred skills
Payments/fintech experience, passion for collecting
Technologies
Stripe, PayPal, C#, .NET, React, Svelte, TypeScript, PostgreSQL, DynamoDB, AWS, Kubernetes, Kafka, Datadog
Responsibilities
Design and maintain multi-gateway payment integrations; develop backend services and frontend payment UIs; implement security and compliance controls (tokenization, idempotency); architect distributed event-driven services; drive cross-functional execution on payment flows.
Seniority
Senior, hands-on IC
