Cryptography Expert | Remote
Full-time - Remote
About employer and position:
Join our innovative and well-established product company, where a diverse team of over 30 talented professionals collaborates remotely across Europe to create exceptional digital experiences.

We are seeking a highly skilled and detail-oriented Cryptography Expert to develop and maintain custom cryptographic algorithms for our blockchain network. If you are passionate about cryptography, thrive in a collaborative environment, and are excited to drive the evolution of a cutting-edge, high-impact product, we’d love to hear from you!
Requirements:
  • Deep understanding of zero-knowledge proofs
  • Deep knowledge of Merkle Trees
  • Great attention to detail
  • Being self-sufficient
  • Experience in designing and implementing custom cryptographic algorithms
  • Proven experience in integrating cryptographic algorithms (e.g., RSA, ECC, AES, SHA-256) and protocols (e.g., TLS, SSL, PKI)
  • Experience in designing or implementing cryptographic solutions, preferably within a blockchain or distributed ledger technology environment
  • Extensive experience in securing software infrastructures end-to-end
  • Deep understanding of Double-Ratchet and MTProto protocols
Nice to have:
  • Ph.D. in Cryptography
  • Certified Blockchain Security Expert (CBSE)
  • Deep understanding of the blockchain(web3) ecosystem
  • Experience with TON network
  • Experience with Nostr
  • Experience with Golang, C/C++ or Rust
  • Experience in developing and releasing blockchain software
  • Experience in security smart contracts
  • Deep understanding of quantum-resistant cryptographic algorithms
Recruiting process:
  1. Introduction call with COO (30-45 min)
  2. Technical interview with CTO (1,5 hr)
What we offer:
  • Fully remote work environment with a competitive salary in USD.
  • 20 paid vacation days per year.
  • Token allocation based on individual performance, giving you the opportunity to share in the growth of the company.
  • A nimble and dynamic startup culture, working alongside high-level experts in the blockchain and tech industries.
  • Exposure to cutting-edge blockchain technologies and the opportunity to make a real impact in the Web3 space.
To apply please send your CV to recruitment@picstar.co
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Contacts
  • Email: recruitment@picstar.co
  • 1A, Sportyvna Square, Tower B, Floor 11, Kyiv, Ukraine