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Principal Software Engineer - US

mLabs

$220,000 - $300,000
Dec 22, 2025
Remote, US
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Building the next generation of financial infrastructure using blockchain technology, cryptography, infrastructure, and security

Requirements

  • 10+ years of backend software engineering experience, with demonstrable leadership in the fintech, payments, or blockchain space
  • Mastery of TypeScript plus deep expertise in one or more systems languages (e.g., Rust, Go, C++)
  • Proven track record building scalable APIs, robust infrastructure, and developer platforms
  • Deep expertise with databases (e.g., PostgreSQL, DynamoDB, NoSQL) and major cloud platforms (e.g., AWS)
  • Strong knowledge of microservices architecture, CI/CD pipelines, observability tools, and the Secure Software Development Life Cycle (SSDLC)
  • Familiarity with applied cryptography, Public Key Infrastructure (PKI), and secure backend architectures
  • Exceptional problem-solving skills, clear communication, and the ability to influence technical direction across teams

Responsibilities

  • Lead the design and development of highly scalable, secure backend services and APIs
  • Define and evolve the architecture for databases, microservices, and system integrations
  • Own critical projects from initial requirements through production deployment and iteration
  • Troubleshoot and resolve complex performance and reliability challenges at massive scale
  • Drive improvements to CI/CD, observability, and engineering processes across multiple teams
  • Collaborate with product, security, and leadership to shape roadmap priorities and align technical execution with long-term company strategy
  • Mentor senior engineers, promote best practices, and represent technical expertise in high-level client discussions

Other

  • Must be in the US, not Canada, EST Preferred
  • Travel: Covered travel expenses
  • Location: United States (Remote-First, office optional)
  • Equipment: High-end work equipment provided (MacBook Pro + essentials)
  • Degree requirements: Not specified