Blockchain Engineer

Intellect

EU is an international technology company focused on digital finance and emerging technologies. At Intellect

EU we are on a mission to become the top-of-mind fintech company. We are committed to our people and believe in building a better future with the newest technologies. We give rising talent and industry veterans the space to explore, launch ideas, and collaborate closely with our clients. With our technical hands-on experience in payments, blockchain and capital markets, there’s no challenge that’s left unsolved.

Over the past two decades, we have earned our expertise in financial technology, executing on hundreds of complex integrations and co-creating new digital asset platforms alongside our clients.

This role focuses on building a custom Key Management Service (KMS) driver to integrate Canton with Microsoft Azure’s Key Vault and Managed HSM, ensuring secure and scalable cryptographic operations for production environments.

The KMS driver is a critical component in enabling secure signing, encryption, and key management workflows that comply with enterprise and regulatory requirements. You will collaborate with infrastructure and blockchain engineers to design a plug-in that meets high security, performance, and fault-tolerance standards. The ideal candidate will contribute to secure, high-performance cryptographic operations in a distributed system.

• Design, implement, and test a KMS integration layer between Canton and Azure Key Vault/Managed HSM, enabling secure cryptographic signing and key usage.
• Work closely with infrastructure teams to meet Canton’s protocol requirements for key custody, signing, and certificate validation.
• Develop reusable, well-tested libraries and ensure integration with deployment pipelines and secure CI/CD workflows.
• Participate in code reviews, threat modeling, and security audits to ensure high-quality, 8 secure software delivery.
• Provide clear technical documentation, and collaborate cross-functionally with product, Dev Ops, and architecture teams.

• Strong experience in Scala and/or Java, with demonstrated ability to write clean, maintainable, and secure code.
• Solid understanding of cryptographic fundamentals, including key lifecycle, secure storage, and secure computation.
• Familiarity with:
  • TLS, X.509 certificates
  • Digital signature algorithms (e.g. ECDSA, EdDSA)
  • Encryption/decryption workflows (AES, RSA, etc.)
• Experience building production-grade integrations, SDK wrappers, or plugins in distributed systems or blockchain platforms.
• Familiarity with REST/JSON APIs and asynchronous systems.
• Comfortable working in Git-based environments with modern CI/CD tooling.
• Upper-intermediate to fluent English (written & spoken) for effective technical communication.

• Prior experience with blockchain or DLT platforms, particularly in enterprise use cases.
• Knowledge of Canton, Daml, or similar smart contract languages.
• Experience with:
  • Azure SDKs, especially for Key Vault and Managed HSM
  • AWS KMS, GCP KMS, or any HSM provider
  • Familiarity with secure software development practices (e.g. OWASP, threat modeling).
• Understanding of Dev Sec Ops , including tools like Hashi Corp Vault, secrets management, and security automation.
• Experience working with Kubernetes, Helm charts, and infrastructure automation (e.g. Terraform, Pulumi).
• Interest in financial infrastructure, custody platforms, or regulated systems is a plus.

• Excellent compensation and benefits package including medical insurance and sports activities.
• International experience in a stable company: the company has offices in Antwerp, Lisbon, Krakow, Kyiv, New York and operates on the market for over 15 years.
• A passionate team in an innovative, casual, positive, and open work environment ready to meet your new ideas.
• Great opportunities for personal and professional development as well as the chance to change the way the business works in the financial world.
• Work where you're most productive: remote, in-office, or hybrid options available.

Join us to make an impact on the entire financial world!