Infrastructure Engineer, Blockchain Specialist

Infrastructure Engineer, Blockchain Specialist

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Since our beginnings in 2017, we've grown to be a leading change‑maker in the digital asset space, renowned for our partnerships and innovation. We are trading on more than 80 exchanges and work with a wide array of asset issuers. As a well‑established market maker, our services span market making, options trading, high‑frequency trading, OTC, and DeFi trading desks.

We are remotely based, with hubs in London, Brussels, and Singapore, and host regular online and offline hangouts. With over 180 team members from 42 nationalities, we pride ourselves on diversity, ranging from DeFi natives to PhDs.

We adopt Rust for algorithmic trading, champion its use in the industry, and support Web3 startups through our Accelerator Program. We push the industry's progress with research and governance initiatives.

We are looking for an experienced Infrastructure Engineer to manage blockchain nodes. This role involves designing, implementing, and maintaining highly scalable and resilient infrastructure to support our product offering across various blockchain networks.

• Architecture, deployment, and maintenance of diverse blockchain nodes (e.g., Bitcoin, Ethereum, Solana) using IaC principles.
• Automate provisioning, configuration, and management of infrastructure for all blockchain‑related services with Terraform and Ansible.
• Develop comprehensive monitoring and alerting solutions with Prometheus, Grafana, or the ELK stack to ensure node health, performance, and uptime.
• Troubleshoot issues, perform root‑cause analysis, and implement fixes to optimize performance and latency of node operations.
• Apply best practices for network and node security, including management of RPC endpoints, validator keys, and key pairs.
• Implement and maintain CI/CD pipelines for efficient deployment, testing, and monitoring of node software upgrades.
• Collaborate with trading and research teams to support new chain integrations and optimize existing ones.
• Design and implement failover and backup strategies for business continuity of mission‑critical blockchain infrastructure.

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in cloud infrastructure, SRE, or Dev Ops roles.
• Demonstrable experience managing blockchain nodes and deep understanding of the ecosystem.
• Strong experience in a trading, crypto, or Trad Fi environment is highly desirable but not essential.

• Strong expertise in cloud platforms (AWS, GCP, or Azure) and containerisation (Docker, Kubernetes).
• Proficient Linux administration skills.
• Hands‑on experience with Terraform, Ansible, Bash, and Python.
• Deep familiarity with monitoring, logging, and observability tools (Prometheus, Grafana, Datadog, ELK).
• Solid understanding of networking concepts (VPC, Load Balancers, DNS, Firewalls).
• Experience with Git Ops practices and CI/CD pipelines.
• Familiarity with various blockchain architectures (PoS, PoW, etc.) and node types (full nodes, validators, RPC nodes).
• Strong understanding of security practices within the blockchain ecosystem.

We value self‑awareness and powerful communication skills. We seek passionate people who understand their career goals and who act with ownership. The ideal candidate is a crypto enthusiast who’s driven, collaborative, and delivers solid, scalable outcomes.

• Competitive salary package.
• Autonomy in time management with flexible hours and remote work.
• Opportunity to create your own entrepreneurial experience within an excellence‑driven team.
• Commitment to a positive and collaborative work environment. We welcome employees of all backgrounds and hire, reward, and promote entirely based on merit and performance.

Due to the nature of our business and external requirements, we perform background checks on all potential employees. Passing a background check is a prerequisite to joining Keyrock.

Frankfurt am Main, Hesse, Germany

Full‑time

Mid‑Senior level