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Lead Software Engineer

Leads development of secure, end-to-end encrypted applications for Windows, macOS, and web clients using Python/Go. Requires 5+ years experience, strong API skills, and distributed systems knowledge; mentors junior engineers.

Boston, MABackend EngineeringOnsite5+ YOE

About the role

Key Responsibilities

  • Design, develop, and maintain high-performance applications and APIs running on Windows, macOS, and web clients.
  • Apply software engineering best practices and distributed systems thinking to the domains of file synchronization and identity management.
  • Ensure the security and reliability of our applications through secure coding techniques.
  • Diagnose and resolve issues related to performance, scalability, and reliability.
  • Collaborate with engineering, product, design, and infrastructure teams during feature development.
  • Guide and mentor junior engineers by providing insightful code review and design review feedback.

Qualifications

  • BS or MS in Computer Science or related field, or equivalent practical experience.
  • Solid understanding of software engineering principles, data structures, and algorithms.
  • Minimum of 5 years of experience developing a commercial product with a client component.
  • Strong understanding of API interfaces and Go and/or Python.
  • Familiarity with relational database design and management (e.g., SQL, database indexes, SQLite).

Preferred Skills

  • Experience building user applications on macOS (Swift) or Windows (C++) interacting with network and file systems (e.g., file storage, access control, sockets).
  • Strong understanding of cryptographic fundamentals (e.g., public-private key encryption, symmetric encryption, digital signatures).
  • Understanding of secure identity verification and authentication mechanisms (e.g., PKI, WebAuthn).
  • Familiarity with distributed systems (e.g., replication, consistency models, fault-tolerance, coordination algorithms).

What We Offer

  • Competitive salary and equity package.
  • Health and dental insurance.

Skills

PythonGoSwiftC++SQLSqliteDistributed SystemsCryptographyPkiWebauthn

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