Who We Are

CryptoNext Security is a start-up based in Paris, founded in 2019, following more than 20 years of academic research.

We specialize in quantum computer-resistant cryptography (PQC: post-quantum cryptography) and offer our "Quantum Safe Remediation Suite" software suite, including our world-renowned Quantum Safe Library (C-QSL) featuring the latest NIST algorithms. Our solutions help enterprises and integrators transition to the post-quantum cybersecurity era.

Recognized as a leader in post-quantum cryptography, CryptoNext was highlighted in Gartner's 2021 report and received the Innovation Prize at "Les Assises 2022." A proud member of Campus Cyber, Hexatrust, and Systematic, we are also collaborators with the US National Cryptography Center of Excellence (NCCoE).

At CryptoNext, we are a close-knit team driven by innovation, trust, and a shared commitment to solving complex challenges.

Requirements
On a Daily Basis, You Will

As a Software Test Engineer, you will ensure the quality and reliability of our products designed to protect sensitive data against quantum threats. You will:

- Design and Automate Tests:
- Develop comprehensive test strategies, including functional, performance, and security tests.
- Automate test execution to ensure continuous testing throughout the development lifecycle.

- Evaluate Performance and Security:
- Conduct performance testing (e.g., load and stress tests) to assess scalability and stability.
- Perform security tests, including penetration and fuzz testing, to ensure compliance with standards.
- Utilize static analysis tools to enforce coding standards and monitor code quality.

- Execute and Report Tests:
- Run manual and automated tests to validate software functionality.
- Document results, track defects, and provide actionable feedback to the development team.
- Create detailed reports on progress, test coverage, and quality metrics.

- Collaborate and Improve:
- Work closely with developers and cryptography experts to align on security and performance requirements.
- Continuously enhance testing methodologies, tools, and automation for better outcomes.

You will focus on products such as:
- Quantum Safe Library: A cryptographic library featuring quantum-resistant algorithms.
- HSMs and Cryptographic Providers: Integrating cryptography into secure hardware.
- Discovery Tool: Detecting and inventorying cryptographic protocols across networks.
- Proxy TLS: Enhancing encrypted data transmission for quantum-resistant environments.
The Skills You Will Demonstrate
Required Technical Skills

• Education: Master's degree in Computer Science, Engineering, or a related field.
• Experience: Minimum of 2 years in software testing, preferably in cybersecurity or cryptography domains.
• Core Competencies:
• Automation and end-to-end testing using tools like Xunit, CUnit, Google Test, or Playwright.
• Programming proficiency in C/C++ and scripting (e.g., Python, Bash).
• Familiarity with CI/CD pipelines and version control systems like Git.
• Knowledge of performance, security, and code analysis tools (e.g., Valgrind, SonarQube, JMeter).

Preferred Skills

• Exposure to cryptography standards (e.g., TLS, PKCS11) and security testing techniques (e.g., fuzz testing).
• Familiarity with Docker, web servers (e.g., Nginx), or VPNs (e.g., strongSwan).
• Experience with additional programming languages such as Java or Go.

Soft Skills

Strong analytical and problem-solving abilities.

Excellent organizational and time-management skills.

Clear communication of technical concepts in both English and French.

The Team You'll Join

You will join our innovative R&D team, a group of experts passionate about developing quantum-safe cryptography solutions. Collaborating closely with developers and cryptography experts, you will contribute to groundbreaking technologies that protect sensitive data in a post-quantum era.

Benefits

Work Environment: A hybrid work model based in Paris, providing flexibility and collaboration opportunities.

Employment Terms: Full-time permanent contract (CDI) under French law.

Compensation: Competitive salary commensurate with experience.

Growth and Impact: Join a pioneering team at the forefront of cybersecurity innovation, making a tangible impact on global cryptographic security.

and mainly... we believe here at CryptoNext that our coworkers are our best perks!