Senior Backend Software Engineer (AI Native)
About The Position
Qrypt's mission is to protect the world's data and restore privacy. Qrypt hardens cybersecurity and future-proofs encryption against quantum attacks by eliminating key transmission. Qrypt's unique technology independently generates symmetric keys at multiple endpoints for critical workflows today. We are a passionate team of engineers, physicists, and cryptographers committed to transforming the way the world safeguards data and communications! Qrypt is looking for a Senior Backend Software Engineer to own the services behind our quantum security products. You will lead the design and development of backend software — primarily in Rust — that moves quantum entropy and keys, powers our entropy-as-a-service platform, and makes our appliances work reliably and securely at scale. You will use AI-assisted development tooling as a core part of how you work, own the correctness and quality of what ships, and help set how the team engineers in an AI-native way.
Requirements
- Bachelor's degree in Computer Science or a related technical field, and/or relevant work experience.
- 6+ years building and shipping backend software, including ownership of services end to end.
- Expertise in Rust, or deep systems-programming experience (C, C++, Go) with a demonstrated ability to work primarily in Rust at a senior level.
- Working proficiency with C++ and Python.
- Strong command of backend architecture: APIs, services, concurrency, reliability, performance, and Linux.
- Fluency with AI and agent-assisted development, and the judgment to apply it where it adds real leverage — reviewing, correcting, and taking full ownership of AI-generated work. This is core to how we operate at Qrypt and is expected of everyone here.
- A track record of technical leadership: design decisions, mentoring, and raising engineering standards.
- Strong written and verbal communication skills.
- Must be authorized to work in the United States. Qrypt does not provide visa sponsorship for this role.
Nice To Haves
- Experience with cryptography, security, or networking systems.
- Experience designing high-reliability, high-assurance, or performance-sensitive services.
- Familiarity with Linux systems programming, packaging, and deployment.
Responsibilities
- Lead the design, development, and testing of backend services and APIs, primarily in Rust, with some C++ and Python.
- Own significant parts of the backend end to end: architecture, implementation, reliability, and performance.
- Make and document design tradeoffs; raise the bar on code quality, testing, and review across the team.
- Work close to the metal on the software that delivers quantum entropy and keys reliably and securely.
- Use AI-assisted and agentic development tooling to accelerate your work while owning the correctness and quality of everything you ship.
- Help shape how the team adopts AI-assisted development (instruction conventions, review standards) as the tooling matures.
- Develop deep domain understanding (quantum random number generation, cryptography, network security) to architect and validate our products.
- Mentor other engineers and collaborate across hardware, product, and engineering to ship end-to-end.
Benefits
- Competitive Pay & Equity participation
- Comprehensive health, dental and vision coverage
- Strong 401(k) match
- In-office lunch and snacks
- The opportunity to be part of a company solving one of the most critical technology challenges of our time!
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
Associate degree
