DevOps Engineer - DLT Infrastructure (f/m/d)

Location: Prague, Czech Republic; hybrid work. Work from abroad is available for 12 days per year from EU countries.

Company

hirify.global is developing Clearstream’s digital securities infrastructure, connecting traditional market infrastructure with a DLT tokenization platform and building a European Digital CSD.

What you will do

• Deploy, configure, monitor, and scale Hyperledger Besu nodes across development, test, and production environments.
• Design resilient node topologies, peer discovery, backup and restore strategies, and blockchain network access controls.
• Integrate the Wallet Service with enterprise HSMs and MPC wallets, including formal cryptographic key generation processes.
• Manage certificate lifecycles, mTLS, TLS/SSL, PKI, truststores, Kubernetes secrets, and PKCS#11 integrations.
• Automate DLT infrastructure and node deployments with Terraform, Tekton, ArgoCD, GitOps, Kubernetes/OpenShift, and secure cloud platforms.
• Implement monitoring, alerting, and logging for node synchronization, consensus health, and HSM latency.

Requirements

• University degree in Computer Science, IT, Cyber Security, or a related field; equivalent experience is considered.
• At least 5 years of DevOps, Systems Engineering, or Infrastructure Engineering experience, including at least 2 years of hands-on experience running blockchain or DLT nodes in production.
• Hands-on experience with institutional HSMs, MPC frameworks, cryptographic key storage, PKCS#11, asymmetric cryptography, ECDSA, and secp256k1.
• Deep knowledge of Hyperledger Besu or similar Ethereum-based clients, including IBFT 2.0, QBFT, synchronization modes, JSON-RPC APIs, and permissioning frameworks.
• Experience with Docker, Kubernetes, or Red Hat OpenShift for deploying stateful workloads.
• Proficiency in infrastructure as code and cloud automation using Terraform or Helm.
• Practical experience with high-security operational workflows, including multisignature schemes, key custodianship, audit trails, and disaster recovery.
• Excellent written and spoken English required.
• Highly analytical, proactive, self-motivated, and independent approach, with strong communication, collaboration, and operational security skills.

Nice to have

• Kaleido Infrastructure and Hyperledger FireFly experience.
• Experience with secure private networks, firewalls, load balancing, and proxy configurations in the financial industry.
• Experience in regulated institutional environments involving ISO 27001, SOC 2, or financial outsourcing guidelines.
• Knowledge of smart contract deployment pipelines and decentralized application deployment workflows.

Culture & Benefits

• Hybrid work and flexible working hours.
• 12 days of remote work from EU countries per year.
• Group Share Plan with a discount on company shares.
• Pension contribution of 3% of gross salary, increasing to 5% after five years.
• Covered Multisport card, life and accident insurance, sick days, and 100% salary contribution during sick leave for up to 56 days.
• 25 vacation days, covered public transport in Prague, free parking, a Flexible Benefit Account, e-learning access, development programs, mentoring, and a learning budget.