Senior Cryptography Engineer - Blockchain R&D Leader

Placements24; Randburg; On-site; ZAR 1,000,000 - 2,000,000; Full time

Benefits offered by this job

Competitive salary

Equity options

Health insurance

Professional development budget

State-of-the-art facilities

Job summary

Placements24 in Randburg, Gauteng is seeking a Senior Cryptography Engineer with a strong focus on blockchain applications to design, implement, and analyze cryptographic protocols critical to the security and functionality of our blockchain solutions.

You will mentor junior engineers, collaborate with blockchain developers to integrate cryptographic solutions into smart contracts, and contribute to research and publication of advances in privacy-preserving techniques and secure consensus.

Qualifications

• PhD or MSc in CS/Math with cryptography specialization.
• 5+ years applying cryptography to blockchain or distributed systems.
• Theoretical and practical knowledge of modern cryptography and key management.

Responsibilities

• Research, design, and implement cryptographic algorithms for blockchain.
• Develop and analyze cryptographic primitives including ZKPs, MPC, and homomorphic encryption.
• Ensure security and robustness of cryptographic implementations in blockchain systems.
• Collaborate with blockchain developers to integrate cryptography into smart contracts.
• Conduct security reviews and threat modeling of cryptographic components.
• Stay updated on cryptography advancements and publish findings.
• Mentor junior engineers and provide technical leadership in cryptography.
• Evaluate cryptographic libraries and tools.

Skills

Cryptography

Blockchain

ZKPs

MPC

OpenSSL

Education

PhD or MSc in CS/Math (Cryptography)

Tools

OpenSSL

Rust

Python

Job description

Placements24 in Randburg, Gauteng is seeking a Senior Cryptography Engineer with a strong focus on blockchain applications to design, implement, and analyze cryptographic protocols critical to the security and functionality of our blockchain solutions.

You will mentor junior engineers, collaborate with blockchain developers to integrate cryptographic solutions into smart contracts, and contribute to research and publication of advances in privacy-preserving techniques and secure consensus.