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SquareSquare

Software Engineer, Financial Platform - Issuing

Build and operate backend services for Block’s card-issuing platform, covering issuance, transaction processing, and disputes at massive scale. The role requires 3+ years of software development experience, production ownership, AI fluency, and a bachelor's degree or equivalent.

About the job

Responsibilities

  • Design, develop, test, ship, and maintain features across card issuance, transaction processing, and disputes.
  • Write high-quality, well-tested code and participate in design and code reviews.
  • Design and implement systems within microservice and event-driven architectures, with reliability and correctness suitable for financial systems.
  • Own well-scoped features end to end, from design through testing, launch, and operation.
  • Participate in operational ownership of tier-0 financial systems, including on-call, incident response, and postmortems.
  • Use AI-powered tools throughout the development lifecycle to improve velocity and quality, applying sound judgment in their use.
  • Maintain high engineering standards and support teammates through code reviews and technical discussions.

Requirements

  • 3+ years of software development or equivalent experience.
  • Experience building and maintaining production software systems and delivering well-scoped projects or features end to end.
  • Ability to identify flaws in complex systems and take appropriate steps to resolve them.
  • Growth mindset and appetite for solving open-ended, ambiguous problems.
  • Experience using AI-powered developer tools and critically evaluating and responsibly applying their outputs.
  • Strong communication and collaboration skills.
  • Bachelor's degree or diploma in Computer Science, Computer Engineering, Software Engineering, or equivalent experience.

Technologies

  • Java
  • Kotlin
  • AWS
  • HTTP
  • JSON
  • gRPC
  • Protocol Buffers
  • Hibernate
  • Aurora
  • MySQL
  • DynamoDB
  • Redis
  • Kafka
  • Microservices
  • Event-driven architecture
  • Datadog
  • Buildkite
  • Gradle
  • AI agents and tooling, including Goose, Claude, and MCP

Compensation and Benefits

  • Annual salary range: $120,700–$213,000 USD, varying by location and market zone.
  • Benefits include remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning benefits.

Skills

Java, Kotlin, AWS, gRPC, Protocol Buffers, Hibernate, MySQL, DynamoDB, Redis, Kafka, Microservices, Datadog, Gradle, Claude, Mcp

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