Shape Marqeta’s card network infrastructure as a Staff Software Engineer, designing reliable systems for real-time transaction routing and authorization.
This hands-on Staff Engineer role supports Core Edge Processing, the systems behind card-network transaction routing and authorization. You will write production code, influence system design, and lead improvements across speed, reliability, and failure handling. Marqeta offers Flexible First work remotely anywhere in Ontario or British Columbia, Canada.
Key Responsibilities: Ship and refine code across the routing and processing stack
Design data model and failure-handling changes with engineers
Develop strategies for degradation and blast-radius containment




Take on complex mission-critical payment codebases
Mentor engineers while guiding technical direction
Requirements: Eight or more years of engineering experience
Robust Java expertise in concurrency and performance
Reliable systems experience at scale
System design and production operations experience
Payment processing, card issuing, or network integration background
Bring Staff-level system design, Java, and payment infrastructure experience to Marqeta’s always-on processing platform.

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📌 Staff Engineer Card Network Infrastructure (British Columbia)
🏢 Marqeta
📍 British Columbia