About the Role

The Senior Software Engineer will focus on developing secure backend systems for digital asset custody and crypto wallet infrastructure. This role involves implementing advanced cryptographic protocols and collaborating with cross-functional teams to ensure system security and scalability.

Responsibilities

Design and develop secure backend systems supporting digital asset custody and crypto wallet infrastructure
Implement advanced cryptographic protocols, including MPC frameworks and secure key management solutions
Integrate blockchain nodes and APIs to construct, sign, and broadcast transactions across networks (Bitcoin, Ethereum, Solana)
Build and optimize systems leveraging trusted execution environments such as Intel SGX and secure enclaves
Collaborate with cross-functional teams to ensure system security, scalability, and resilience in highly sensitive environments

Requirements

5–10+ years of software engineering experience with a focus on backend and secure systems development
Strong programming expertise in Rust (preferred), Go, or C/C++
Hands-on experience with cryptographic libraries such as OpenSSL or MPC-based frameworks
Experience with trusted execution environments (Intel SGX) and hardware security modules (HSMs)
Strong understanding of blockchain technologies, transaction structures (Bitcoin UTXO, Ethereum RLP), and wallet systems

Preferred Skills

Master’s or PhD in Computer Science, Cryptography, Mathematics, or related field
Experience with advanced cryptographic concepts such as MPC algorithms, homomorphic encryption, or oblivious transfer
Familiarity with hierarchical deterministic (HD) wallet/address schemes and cold wallet architectures
Experience in digital asset or blockchain-focused startup environments
Knowledge of secure data transmission techniques such as QR-based systems

Compensation

Rate: $89 - $94/hr w-2

Benefits

Medical, Dental, and Vision benefits
401k with company matching
Life insurance
Pre-tax accounts and other voluntary benefits
Sick time if required by law in the worked-in state/locality

Requirements

Software Engineering Experience

5–10+ years of software engineering experience with a focus on backend and secure systems development.

Programming Expertise

Strong programming expertise in Rust (preferred), Go, or C/C++.

Cryptographic Libraries

Hands-on experience with cryptographic libraries such as OpenSSL or MPC-based frameworks.

Trusted Execution Environments

Experience with trusted execution environments (Intel SGX) and hardware security modules (HSMs).

Blockchain Technologies

Strong understanding of blockchain technologies, transaction structures, and wallet systems.

Nice to Have

Advanced Degree

Master’s or PhD in Computer Science, Cryptography, Mathematics, or related field.

Advanced Cryptographic Concepts

Experience with advanced cryptographic concepts such as MPC algorithms, homomorphic encryption, or oblivious transfer.

HD Wallets

Familiarity with hierarchical deterministic (HD) wallet/address schemes and cold wallet architectures.

Startup Experience

Experience in digital asset or blockchain-focused startup environments.

Secure Data Transmission

Knowledge of secure data transmission techniques such as QR-based systems.

Benefits

Medical Benefits

Includes choice of 3 medical plans.

Dental Benefits

Comprehensive dental coverage.

Vision Benefits

Vision insurance included.

401k Matching

401k with company matching.

Life Insurance

Life insurance coverage provided.