Embedded Software Engineer - Cybersecurity at Harmattan AI (Paris, France)Embedded Software Engineer - Cybersecurity

Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected.

We are looking for a highly technical Embedded Software Engineer specialized in Cybersecurity to define, implement, and verify security measures across our platforms. In this role, you will work directly with embedded software teams, system architects, and product owners to ensure secure design, secure implementation, and compliance with defense-grade cybersecurity expectations. You will help shape how security is integrated from hardware up through the application layer, influence secure architectural decisions, and drive compliance activities across diverse product lines.

• Define and specify secure embedded architectures such as secure boot, firmware updates, and key management
• Implement and integrate core cybersecurity features in embedded software (e.g., cryptographic primitives, secure storage, PKI)
• Collaborate with engineering teams to embed security into design and implementation workflows
• Validate, test, and harden systems to meet stringent cybersecurity requirements
• Lead technical cybersecurity risk analysis and threat modeling for embedded products
• Support and drive cybersecurity compliance efforts, including interaction with external stakeholders and certification bodies
• Produce clear, actionable documentation that aligns engineering work with compliance expectations.

Candidate Requirements

• Educational Background: Degree in Computer Science, Electrical Engineering, Robotics, or a related field.
• Prior work in defense, aerospace, critical infrastructure, or other high-security domains
• Strong expertise in embedded cybersecurity, secure firmware, or system hardening. Hands-on experience with C/C++ embedded development; Python familiarity is a plus. Solid understanding of hardware-security primitives, TPM/SE integration, cryptographic protocols, and PKI.
• Complex Project Management: Avid learner with a demonstrated capacity to handle large-scale, complex projects – offering innovative solutions and leading teams to deliver outstanding results.
• Adaptability & Mobility: Thrives under pressure in a fast-paced, dynamic environment; embraces a “no-task-is-too-small” mentality.
• Communication & Influence: Excellent written and verbal communication, capable of leading diverse principals, from junior members to senior executives.
• Commitment: 100% dedication to Harmattan AI’s mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence.

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.