--- title: 'Senior Backend Software Engineer (AI Native) at Qrypt' canonical: 'https://feeny.ai/job/senior-backend-software-engineer-ai-native-qrypt-austin-yg7b7brkvy76' type: 'job' last_seen: '2026-09-10' --- # Senior Backend Software Engineer (AI Native) at Qrypt - **Company:** Qrypt - **Location:** Austin, TX - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-07-31 - **Last confirmed live:** 2026-09-10 - **Apply:** https://jobs.lever.co/qrypt/24628652-6650-4556-b744-1b6318a6a0d0 ## Job description 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. ## What you'll do - 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. ## What you'll need - 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 have ## Nice to have - 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. ## Benefits & Perks - 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! ## Equal Opportunity Employer Qrypt is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, or veteran status. If you have a disability and need assistance with our employment application process, please email us at info@qrypt.com to obtain assistance. ## About Qrypt ## Company Overview - **One-liner**: Qrypt provides quantum-secure encryption solutions designed to protect data from current threats and future quantum computing risks. - **Entity Type**: Private (Incubator/Accelerator – NVIDIA Inception Program) - **Headquarters**: New York, New York, United States - **Founded**: 2017 - **Founders**: Kevin Chalker (CEO) and Denis Mandich (CTO) ## Core Business - **Primary industry**: Cybersecurity / Quantum-Secure Encryption - **Target customers**: B2B – enterprise, government, critical infrastructure, and industries vulnerable to intellectual property theft - **Mission**: "To protect and defend our collective privacy from exploitation" and help customers "take back your privacy forever" ## Products & Services - **Quantum Entropy-as-a-Service**: Cloud-based delivery of true random numbers for cryptographic key generation. - **Quantum Entropy Appliance**: On-premises hardware that generates quantum entropy for high-security environments. - **Quantum-Secure IPsec Gateway**: Encrypted network communication that resists quantum computer attacks. - **Digital Quantum Key Distribution (DQKD)**: Software-based key distribution using quantum principles without dedicated fiber. - **Q-Isolate**: A solution that isolates and secures sensitive workloads using quantum-derived keys. Qrypt holds 10+ patents covering resonant cryptography, multi-source entropy aggregation, and key management. ## Market Standing - **Valuation**: Not publicly disclosed - **Key Metric**: Headcount of ~21 employees (as of 2026, -11.1% YoY); total funding not disclosed, but backed by the NVIDIA Inception Program - **Notable Investors/Partners**: NVIDIA Inception Program; strategic partnerships with Mattermost, ITSEC Asia, AIC, and U.S. national labs - **Growth Signals**: Recent board appointments (Ralph Goff, former CIA senior executive; Nick Lippis, ONUG co-founder); joint development program with Mattermost for quantum-secure end-to-end encryption; expansion into critical infrastructure and Indonesian markets ## Competitive Advantages - **Mathematically proven unbreakable encryption**: Qrypt’s algorithm is claimed to be the only one proven secure even in theory, not just against known attacks. - **Quantum-ready today**: Solutions are designed to resist both classical and quantum attacks, eliminating the need for future migration. - **Patented technology**: 10+ patents in resonant cryptography, entropy aggregation, and key management. - **Team pedigree**: Founders and team include experts from academia, industry, and government (e.g., chief cryptographer Yevgeniy Dodis). ## Strategic Focus - **Critical infrastructure & government**: Targeting sectors most vulnerable to cyberespionage and quantum threats. - **FIPS compliance & standards**: Building solutions that meet U.S. government security standards (e.g., AIC’s FIPS-compliant platform powered by NVIDIA BlueField-3 DPU). - **Joint development**: Collaborating with platforms like Mattermost to embed quantum-secure encryption into widely used communication tools. - **Global expansion**: Partnerships in Asia (ITSEC Asia) and ongoing work with U.S. national labs. ## Why Work Here - **Culture & mission**: "Eternal Encryption" – a strong sense of purpose in defending digital privacy against quantum threats. Team is composed of cryptography, physics, and security experts. - **Work arrangements**: Hybrid and in-office roles available. Offices in New York City (HQ), Germantown (MD), and Austin (TX). Recent postings include in-office (Germantown) and hybrid (Austin) positions. - **Perks & benefits**: - Company equity - Generous parental leave - Health insurance, dental, FSA - 401(K) and disability insurance - Free snacks and drinks - Customized development tracks - **Engineering culture**: Stack includes Python, TypeScript, React, Docker, Kubernetes, Terraform, Bazel, Verilog/VHDL, and more. Emphasis on cryptography, hardware-software co-design, and cloud-native development. ## Sources 1. [jobs.lever.co/qrypt](https://jobs.lever.co/qrypt) 2. [qrypt.com/about-us](https://www.qrypt.com/about-us/) 3. [linkedin.com/company/qrypt-inc](https://linkedin.com/company/qrypt-inc) 4. [cbinsights.com/company/qrypt](https://www.cbinsights.com/company/qrypt) 5. [builtin.com/company/qrypt](https://builtin.com/company/qrypt) ## Other roles at Qrypt - [Manufacturing Operations Manager](https://feeny.ai/job/manufacturing-operations-manager-qrypt-germantown-kx79r748vd5e) — Germantown, MD - [Senior Cloud Engineer](https://feeny.ai/job/senior-cloud-engineer-qrypt-austin-tv966dysrd1s) — Austin, TX - [Senior Product Manager](https://feeny.ai/job/senior-product-manager-qrypt-austin-yyfwz61n1vz2) — Austin, TX - [Backend Software Engineer (AI Native)](https://feeny.ai/job/backend-software-engineer-ai-native-qrypt-austin-kxh2t2n5m2qx) — Austin, TX - [Embedded Software Engineer](https://feeny.ai/job/embedded-software-engineer-qrypt-germantown-cwmarfj4nx95) — Germantown, MD