Senior Embedded Software Engineer

IN Groupe; Paris; On-site; EUR 80,000 - 110,000; Full time

Job summary

IN Groupe is seeking a Senior Embedded Software Engineer to join the R&D team in Paris. You will design, implement, and validate high-security cryptographic components for embedded systems, collaborating with security experts to protect assets.

Responsibilities include developing and integrating cryptographic algorithms, assessing protection against attacks, and ensuring robust architectures. English proficiency, a Master’s degree, and hands-on cryptographic development are essential.

Qualifications

• Master’s degree (Bac+5) in Mathematics, Cryptography, Computer Science, or Embedded Electronics.
• PhD is a plus.
• English language proficiency required.

Responsibilities

• Assess the security of products against high security standards.
• Contribute to the development and integration of cryptographic algorithms into embedded systems.
• Validate algorithms and define test plans to improve testing methodologies.
• Assess physical and software security of cryptographic implementations.
• Document best practices and provide security recommendations.
• Conduct technology watch and may file patents or publish in conferences.
• Support teams in developing expertise and assist multiple projects.

Skills

C/C++ programming

Assembly language

English proficiency

Cryptographic development

ISO7816/ISO14443 knowledge

Smart cards/HSM experience

Cryptographic libraries integration

Team collaboration

Education

Master’s degree (Bac+5) in Mathematics, Cryptography, Computer Science, or Embedded Electronics

PhD in related field (a plus)

Tools

Git

Jira

Job description

About the company

A specialist in identity, secure transactions, and digital services, IN Groupe is the global leader in secure identity and trust services. Every day, our 4,000 employees across 40 countries work to ensure that everyone has access to a reliable and secure identity, both in the physical and digital worlds. With our solutions and our international network of 10 R&D centers, we support governments and businesses in more than 130 countries. Joining IN Groupe means helping to shape the future of the identity and secure transaction market. Become part of our international teams — driven by innovation and proud to design solutions that make life easier and protect personal data for millions of people around the world.

About the role

As a Senior Embedded Software Engineer within the R&D team, you will be a key point of reference for secure embedded implementation aspects. You will contribute to the design and integration of high security features within embedded systems. You will implement, optimize, and validate cryptographic components, working closely with our security experts. You will help assess the robustness of these implementations against physical and software attacks to ensure strong protection for our embedded solutions. You will work with state-of-the-art embedded technologies and the latest cryptographic primitives.

Main responsibilities

• Assess the security of our products against high security standards
• Contribute to the development and architecture of modules and ensure the proper integration of symmetric and asymmetric cryptographic algorithms into embedded systems, according to customer requirements
• Validate the implemented algorithms and verify their correct usage by defining and executing test plans. Proactive and innovative, you help improve testing methodologies.
• Assess the physical and software security of cryptographic implementations to guarantee a high level of protection
• Document best practices and provide security recommendations
• Conduct technology watch activities and may file patents for innovative solutions and publish in scientific conferences
• Support teams in developing their expertise
• Assist multiple projects in implementing security requirements

About you

• Education: Master’s degree (Bac+5) or equivalent in Mathematics, Cryptography, Computer Science, or Embedded Electronics (PhD is a plus).
• Experience: Proven experience in embedded cryptographic development.
• Language: Proficiency in English.

Technical competencies

• Strong programming skills in C/C++ (Assembly language experience is a plus)
• Familiarity with collaborative workflows and tools (e.g., Git, Jira)

Preferred Skills

• Experience with smart cards or similar technologies (e.g., Hardware Security Modules – HSM)
• Basic understanding of cryptographic primitives
• Experience integrating or optimizing cryptographic libraries
• Knowledge of basic communication standards such as ISO7816, ISO14443

Personal skills

• Strong teamwork abilities, autonomy, effective interpersonal communication.
• Strong rigor and ability to act as a technical reference.