Principal Crypto Engineer - JD
Location: Hybrid
Job Type: Fulltime
Experience Required: 3 – 5 years
Department: Engineering / Security & Cryptography
About Us:
Salt Technologies Pvt. Ltd. is a cutting-edge technology firm focused on delivering secure and scalable blockchain and Web3 solutions. We are committed to staying at the forefront of cryptographic innovation to future-proof our systems and products. Role Overview
Role Overview
We are looking for an experienced Principal Crypto Engineer to lead and support the design, implementation, and assessment of cryptographic solutions across our platforms. This role involves working on both classical and post-quantum cryptography, conducting crypto analysis, and evaluating security protocols such as TLS and X.509.
Key Responsibilities
● Implement and evaluate cryptographic protocols including RSA, ECC, and post-quantum algorithms like Kyber.
● Conduct crypto analysis and post-quantum cryptographic assessments.
● Review and enhance security protocols including TLS, X.509 certificate infrastructure, and secure key management.
● Research and implement next-generation encryption standards to safeguard against quantum threats.




● Optimize and integrate cryptographic libraries into production systems.
● Collaborate with engineering and security teams to ensure end-to-end encryption and data privacy.
● Stay updated on NIST post-quantum cryptography standards and related developments.
● 3–5 years of hands-on experience in applied cryptography or security engineering.
● Solid understanding of TLS, X.509, RSA, ECC, and post-quantum cryptography (e.g., Kyber).
● Proficiency in one or more programming languages (Rust, C/C++, Go, Python).
● Experience with cryptographic libraries (e.g., OpenSSL, BoringSSL, libsodium).
● Solid grasp of secure protocol design and cryptographic threat models.
● Familiarity with blockchain or Web3 security is a plus.
Preferred Qualifications
● Bachelor's or Master's in Computer Science, Cryptography, Information Security, or related field.
● Experience contributing to or auditing cryptographic implementations or open-source projects.
● Exposure to formal verification, zero-knowledge proofs, or secure multiparty computation (MPC).
Private Health Insurance
Hybrid Work Mode
Performance Bonus
Paid Time Off

📌 Principal Crypto Engineer Maharashtra
🏢 SALT TECHNOLOGIES
📍 Maharashtra