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Cryptography engineer

ShareID is hiring!

About

ShareID delivers real-time, secure authentication using official ID documents and a simple smile. Our AI-powered solution verifies IDs from over 120 countries with 99.9% accuracy, confirms document ownership, and ensures user liveness—without storing personal data. With our patented technology, users get a reusable digital identity and ongoing access to verifiable credentials.

Our mission is to transform authentication by making it seamless, trustworthy, and user-friendly.

Founded at Station F by Sara, a financial engineer with 9+ years in regulatory risk, and Sawsen, a PhD in computer vision with experience at Cisco’s Innovation Lab, ShareID combines deep expertise in security, AI, and digital identity.

Job Description

Your responsibilities You will be in charge of :

  • The design of encryption and hashing algorithms

  • The implementation of “homomorphic encryption algorithms”

  • Follow the latest published research and inform the team of potential new applications

  • Design robust tests and benchmarks to validate your research

Perks

You will spend the best time of your life helping build the MFA 3.0! But if it really matters:

  • Competitive salary package

  • Remote policy from 2 days per week to full remote

  • 5 to 10 days off in addition to the 25 legal days

  • Alan health care insurance

  • 50% of public transportation cost

  • An inclusive and equal environment (8 nationalities on a team of 11)

  • Visa sponsorship for international talents

Preferred Experience

We are looking for a cryptography Engineer with:

  • Masters or PhD in a relevant field

  • Strong understanding of security for privacy-preserving techniques and Cryptographic problem solving (MPC, HE, FE, others)

Additional Information

  • Contract Type: Full-Time
  • Start Date: 01 January 2026
  • Location: Paris
  • Education Level: Master's Degree
  • Occasional remote authorized
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