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Senior Software Engineer, Assets Core

Paxos

$173,284 - $203,864
Sep 30, 2025
Remote, US
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Modernizing the foundational infrastructure that represents and secures all assets on the Paxos platform, transforming brittle, fragmented treasury systems into a scalable, resilient, and intent-driven platform, and addressing the core challenges of converging hot, warm, and cold asset movement flows.

Requirements

  • 5+ years of software engineering experience, with proven track record of delivering complex technical solutions
  • Strong expertise in building scalable backend services and RESTful APIs
  • Experience with modern web technologies and cloud infrastructure (AWS preferred)
  • Track record of writing clean, maintainable code with comprehensive test coverage
  • Strong understanding of security best practices and experience building secure systems
  • Excellent problem-solving skills and ability to break down complex requirements into manageable tasks
  • Experience with workflow engines and state management systems is a plus

Responsibilities

  • Design and build the core primitives of our asset movement strategy, including transactional signing ceremony execution and wallet balance reservation systems.
  • Decompose legacy systems to decouple business logic from execution, reducing manual break-fixes and improving system observability.
  • Architect and implement solutions for ensuring data consistency and fault tolerance to prevent race conditions across concurrent asset movement workflows (e.g., Rebalancer, Tokenization, Signing Ceremony).
  • Drive the development of a robust, modern testing framework for our mission-critical assets core services to improve confidence and development velocity.
  • Collaborate with platform and product teams to build the foundational components required to launch new assets and products with greater speed and reliability.

Other

  • Strong communication skills and ability to work effectively with cross-functional teams
  • Knowledge of regulatory compliance and KYC/AML processes is a plus
  • Demonstrated experience using AI tools to improve how you work