Blockchain Expert

About the role

Bybit is seeking a technical specialist to advance our core blockchain infrastructure and security systems. You will work on high-impact projects involving cryptography, private key management, and TEE-based security to support our global digital asset platform. In this capacity, you will own the design and execution of critical cryptographic protocols that underpin the integrity of our trading ecosystem. The role requires you to act as a deep technical authority, translating complex security challenges into robust architectural solutions. You will be responsible for pushing the boundaries of current research to create production-ready systems that set industry standards for reliability. Collaboration with cross-functional teams will be central to your work, ensuring that security and performance remain paramount throughout the development lifecycle. Your contributions will directly influence the trust and resilience of a platform serving a global user base.

Key facts

What you'll do

• Conduct advanced research into the theoretical foundations of blockchain consensus mechanisms, analyzing edge cases and failure modes to strengthen network resilience.
• Architect and implement novel cryptographic protocols that enhance transaction privacy and data integrity across distributed ledger environments.
• Develop and optimize secure multi-party computation (MPC) algorithms to refine the efficiency and robustness of the company's private key signing infrastructure.
• Engineer scalable solutions for threshold signature schemes, ensuring high availability and fault tolerance for critical financial operations.
• Perform in-depth security research focused on Trusted Execution Environment (TEE) based solutions, evaluating hardware attestations and secure enclave implementations.
• Design and execute rigorous test vectors and formal verification methods to validate the correctness of cryptographic implementations before deployment.
• Collaborate with protocol engineers to integrate zero-knowledge proof systems into broader infrastructure, enabling selective disclosure and compliance-friendly verification.
• Investigate and prototype homomorphic encryption techniques to allow computation on encrypted data without compromising security guarantees.
• Create detailed technical documentation and reference implementations that serve as blueprints for future development initiatives.
• Mentor junior engineers by conducting code reviews and knowledge-sharing sessions focused on secure coding practices and threat modeling.
• Analyze real-world attack vectors and develop countermeasures that mitigate risks associated with key management and transaction validation.
• Lead proof-of-concept projects that explore the intersection of blockchain scalability and cryptographic innovation.
• Partner with external research institutions to evaluate emerging standards and incorporate best practices into internal workflows.
• Drive the adoption of secure development lifecycle principles across all blockchain-related engineering efforts.

Requirements

• Demonstrate a strong, proven grasp of advanced cryptographic principles, specifically zero-knowledge proofs, secret sharing schemes, and homomorphic encryption methodologies.
• Show practical coding proficiency in at least one mainstream MPC protocol such as FROST, GG18, MST, or TSS, with a track record of successful implementation.
• Exhibit mastery of systems programming languages including C++, Rust, or Go, with the ability to analyze and interpret complex cryptographic library source code.
• Maintain an analytical mindset characterized by meticulous attention to detail, with a primary focus on security properties and performance optimization.
• Communicate technical concepts effectively to both specialized and non-specialized audiences, ensuring clarity in high-stakes discussions.
• Hold a background that includes hands-on experience with secure software development lifecycle (SSDLC) practices and threat modeling frameworks.
• Possess the ability to work independently on highly confidential projects while adhering to strict deadlines and quality benchmarks.
• Have a demonstrated commitment to ethical security research and responsible disclosure practices within the blockchain community.

Nice to have

• Published research papers, patents, or public presentations regarding ZKP, MPC, or TSS that contribute to the academic or industrial discourse.
• Hands-on experience building low-level ZK or MPC libraries from scratch, including contributions to open-source cryptographic projects.
• Familiarity with specialized tools and frameworks such as EMP-toolkit, libOTe, MP-SPDZ, tss-lib, or zkp.js, indicating deep protocol-level understanding.
• Background in custodial or MPC wallet services at organizations such as Qredo, ZenGo, or Fireblocks, with insights into operational security.
• Experience with hardware security modules (HSMs) and their integration into blockchain custody solutions.
• Knowledge of regulatory frameworks governing digital assets in Middle Eastern jurisdictions, particularly regarding licensing and compliance.
• Exposure to Layer 2 scaling solutions and the cryptographic primitives that enable their functionality.
• Demonstrated ability to conduct security audits and penetration testing on smart contracts and cryptographic protocols.

Practical notes

Bybit provides a study growth fund for professional development, internal mobility options, and regular team-building events. You will join a diverse, international team with clear paths for career advancement. The position is based in Abu Dhabi, UAE, and requires relocation support as outlined in the offer details. Full-time engagement is expected, with working hours aligned to global business operations. Travel may be required for security conferences, client engagements, or collaborative research initiatives. Candidates must possess the right to work in the United Arab Emirates and be eligible for the necessary visa sponsorship. The recruitment process will involve technical assessments, interviews, and reference verification.