Senior Software Engineer – Payments (Credit Card & Alternative Payments)
Xsolla (USA), Inc., operating under the Xsolla brand, is a global video game commerce and payments company serving game developers, publishers, creators, and payment providers.
Maintainer signals as of 9/25/2026
Projects
About Xsolla (USA), Inc.
Xsolla provides merchant-of-record and payment-processing services plus direct-to-consumer commerce, web shops, publishing and distribution tools, cloud gaming, fraud prevention, player engagement, creator monetization, and developer tooling for the video game industry. Its solutions operate across 200+ geographies with 1,000+ payment methods and are actively supported through live products, documentation, customer support, and ongoing hiring.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and maintain reliable payment-processing services for card and alternative payment methods. You will develop integrations, reconciliation pipelines, reporting and alerting, fraud and dispute workflows, and secure compliant payment-data systems. You will participate in incident response, code reviews, architecture discussions, and mentor junior engineers.
Requirements
- 5+ years of software engineering experience with PHP and Go
- At least 2 years of production payment-processing experience
- Experience with card authorization, clearing, settlement, reconciliation, and chargebacks
- Experience integrating with alternative payment providers
- Understanding of card-network models, interchange, BIN logic, MCC codes, AVS, CVV, and 3DS/SCA
- Understanding of distributed systems, idempotency, eventual consistency, fault tolerance, and high availability
- Proficiency with RESTful or event-driven APIs in a payments context
- Familiarity with PCI DSS and payment-data security
- Debugging and incident-response skills for high-volume financial systems
Responsibilities
- Implement and maintain services for card authorization, clearing, and settlement workflows
- Build integrations with acquiring banks, card networks, payment gateways, fraud providers, tokenization services, and alternative payment methods
- Implement payment routing, retry, failover, idempotency, and state-management mechanisms
- Support 3D Secure, Strong Customer Authentication, card vaulting, and tokenization
- Build automated reconciliation pipelines and reconcile internal ledgers against external reports
- Develop safeguards for revenue leakage, ledger consistency, audit readiness, and financial controls
- Build payment reporting, dashboards, monitoring, and threshold-based alerting
- Participate in on-call rotations and incident response
- Build compliant systems for sensitive payment data and support audits
- Integrate fraud detection and risk scoring systems and implement chargeback workflows
- Write well-tested and documented code, participate in reviews and architecture discussions, and mentor junior engineers
Benefits
- Unlimited Flexible Time Off
Hiring Process
Final interview followed by background checks where permitted by law.