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Senior Software Engineer — Privacy-First Communications Infrastructure

United States 225000.00 - 400000.00 USD / Year · Job Posted June 09, 2026
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Job Description

This company is building a next-generation, privacy-first communication platform designed for high-stakes environments where security isn't optional. Their core product is a messenger application with true end-to-end encryption at the protocol level — not bolted on, but foundational to everything they ship. They operate on a simple principle: everything not end-to-end encrypted or self-hosted ultimately surrenders data to third-party providers. They're not building another messaging tool. They're creating secure infrastructure that institutions can actually rely on — across finance, government, and enterprise use cases where data integrity and privacy are critical.

Requirements

  • Demonstrated excellence outside of work
  • Open-source contributions, side projects, or other evidence of self-directed engineering ambition
  • 3+ years building and operating high-throughput backend systems at scale, with ownership of technical direction
  • Hands-on production experience with PostgreSQL, Redis, and NATS — schema design, query tuning, and failure recovery
  • Strong systems programming fundamentals: concurrency, memory management, networking, and performance profiling (Rust, Go, C++, or equivalent)
  • Experience designing client-facing SDKs or APIs with stable contracts, versioning, and cross-platform consistency

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