Backend Engineer

Manhattan, NY, US • Posted 8 hours ago • Updated 5 hours ago
Full Time
On-site
$225k - 400k per year
Company Branding Image
Fitment

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Job Details

Skills

  • Communication
  • Encryption
  • Messaging
  • Finance
  • Use Cases
  • Data Integrity
  • calibre
  • Application Development
  • Data Flow
  • Privacy
  • Open Source
  • PostgreSQL
  • Redis
  • Query Optimization
  • Recovery
  • Concurrent Computing
  • Management
  • Computer Networking
  • Rust
  • C++
  • Customer Facing

Summary

Title: Senior Software Engineer - Privacy-First Communications Infrastructure

About the company
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.

The role
We're looking for a Senior Software Engineer to join a small, high-calibre team with strong open-source backgrounds and a culture of real technical ownership. The stack is centred around Rust, with PostgreSQL, Redis, and NATS across the data layer. The product sits at the intersection of backend infrastructure and cryptographic systems, meaning the challenges go well beyond standard application development. You'll work on secure data flow, performance at scale, and designing systems that remain reliable under strict privacy constraints.

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 directionHands-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
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: 91115974
  • Position Id: PjSRgirRdoT8
  • Posted 8 hours ago

Company Info

About LHi Group Ltd

At Lawrence Harvey, we are dedicated tech recruitment specialists focused exclusively on the North American market. Our expertise lies in connecting top talent with leading technology companies, driven by a deep understanding of the dynamic tech landscape in the region. By concentrating on North America, we build strong industry relationships and navigate the unique challenges and opportunities within the sector. Our commitment to excellence and specialised knowledge ensures a tailored recruitment experience for both clients and candidates. Join us in redefining tech recruitment in North America, where innovation meets talent, and success becomes a shared reality.

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