Join our client to build an internal institutional wallet platform for custodial operations across Bitcoin, Ethereum, Solana, and TRON. The platform unifies wallet management, transaction construction and signing, policy & governance, and execution workflows into a single in-house solution, replacing multiple vendor-specific custody and wallet systems.
You’ll work on secure wallet infrastructure, transaction signing, HSM integrations, and cryptographic services, helping shape the next generation of institutional digital asset custody.
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Requirements:
- Strong Rust development experience.
- Deep knowledge of cryptography and secure software engineering.
- Experience with HSMs (Thales, IBM, Utimaco, Securosys, or Cloud HSMs).
- Experience building or designing blockchain wallet infrastructure.
- Understanding of Bitcoin, Ethereum, Solana, or other public blockchains.
- Experience with transaction signing (ECDSA, EdDSA, Schnorr).
- Knowledge of PKCS#11.
- Experience with Git/GitHub and secure development practices.
- Degree in Computer Science, Engineering, Cryptography, or a related field
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Responsibilities:
- Design and develop institutional-grade HSM-based wallet infrastructure.
- Build secure transaction signing services using HSMs.
- Design cryptographic architecture and wallet security models.
- Implement and optimize PKCS#11 integrations with enterprise HSMs.
- Support production systems, monitoring, troubleshooting, and incident resolution.
- Collaborate with engineering teams on blockchain integrations and wallet architecture.
- Provide technical guidance on cryptographic best practices and secure coding.
- Research and evaluate new cryptographic technologies, MPC, and emerging wallet architectures
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Nice to Have:
- MPC wallet experience.
- Kubernetes, CI/CD, GitOps.
- Azure or cloud infrastructure experience.
- Knowledge of staking, DeFi, CeFi, and institutional digital asset products.
- Familiarity with post-quantum cryptography (PQ) and modern custody architectures.
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What we offer:
- Remote working format
- Flexible working hours
- Informal and friendly atmosphere
- The ability to focus on your work: a lack of bureaucracy and micromanagement
- 20 paid vacation days
- 7 paid sick leaves
- Education reimbursement
- Free English classes
- Psychologist consultations
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Recruitment process:
- Recruitment Interview
- Technical Interview
- Client Interview
Our Benefits
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Competitive salaryUp to the market and more
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Flexible working hours
Work-life balance
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Challenging projects
Work on product used by worlds largest financial institutions
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No
bureaucracyGreat management with no bureaucracy
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Remote
workAn opportunity to work from anywhere
Have some questions?
Join our team!
Tell a bit about yourself and why you would like to join us, share your CV and portfolio (if needed) with us