5 days ago
Remote, MexicoSenior
Responsibilities
- Design and build Golang backend services integrating with payment processors, gateways, and card networks.
- Own authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute workflows end to end.
- Build idempotent, fault-tolerant, auditable transaction processing using distributed-architecture patterns and queues.
- Operate within PCI DSS scope, including tokenization, network tokens, secure payment-data handling, and applicable 3DS/SCA flows.
- Instrument and monitor authorization rates, decline rates, processor performance, latency, and settlement accuracy.
- Use Claude or equivalent LLM tools for design, coding, research, testing, and documentation while following security and data-handling policies.
- Mentor engineers, unblock peers, raise engineering standards, and occasionally lead small project teams to delivery.
Requirements
- 7+ years of backend or full-stack engineering experience, including meaningful experience with payments, fintech, or money-movement systems.
- Strong Go experience preferred, or comparable Python experience, building and serving backend APIs.
- Hands-on experience integrating with payment processors, gateways, or acquiring systems and understanding authorization, settlement, tokenization, idempotency, reconciliation, and disputes.
- Experience with distributed, cloud-based architectures and transactional outboxes or queuing tools such as Kafka, SQS, or RabbitMQ.
- Demonstrated hands-on use of Claude or an equivalent LLM to improve productivity, research, communication, and engineering output.
- Bachelor's degree in Computer Science, Engineering, or a related field.
- Preferred experience includes SQL-based relational databases through an ORM, Prometheus, New Relic, or Datadog, CI/CD pipelines, Kubernetes, AWS, commercial APIs, and web applications.
- Preferred payments experience includes Adyen, Stripe, Marqeta, Fiserv, PCI DSS, 3DS/SCA, network tokenization, and payments compliance.
Benefits
- Full-time remote role.
- Employees can participate in a culture emphasizing innovation, high standards, professional growth, and varied personal interests.
Tech Stack
Apache KafkaAWSDatadogElasticsearchGitGoKubernetesMySQLPostgreSQLPrometheusPythonRabbitMQReactReact NativeTypeScript
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