Infrastructure Engineer, Blockchain Specialist

Keyrock – City Of London, England, United Kingdom

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. Today, we rock with over 180 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels, and Singapore, and host regular online and offline hangouts to keep the crew tight.

We are trading on more than 80 exchanges and working with a wide array of asset issuers. As a well‑established market maker, our distinctive expertise led us to expand rapidly. Our services span market making, options trading, high‑frequency trading, OTC, and DeFi trading desks.

But we’re more than a service provider. We’re an initiator. We’re pioneers in adopting the Rust Development language for our algorithmic trading, and champions of its use in the industry. We support the growth of Web3 startups through our Accelerator Program. We upgrade ecosystems by injecting liquidity into promising DeFi, RWA, and NFT protocols. And we push the industry's progress with our research and governance initiatives.

At Keyrock, we're not just envisioning the future of digital assets. We're actively building it.

We are looking for an experienced Infrastructure Engineer to join our team, specifically focusing on managing blockchain nodes. This role involves designing, implementing, and maintaining highly scalable and resilient infrastructure to support our product offering across various blockchain networks. The ideal candidate will have a deep understanding of the blockchain ecosystem, expertise in Infrastructure as Code (IaC), and a strong background in observability and Dev Ops best practices
.

• Architect, deploy, and maintain a diverse range of blockchain nodes (e.g., Bitcoin, Ethereum, Solana, and others) using IaC principles.
• Utilize Terraform, Ansible, and other tools to automate the provisioning, configuration, and management of infrastructure for all blockchain‑related services.
• Develop comprehensive monitoring and alerting solutions (Prometheus, Grafana, ELK stack) to ensure the health, performance, and uptime of all blockchain nodes.
• Troubleshoot issues, perform root‑cause analysis, and implement fixes to optimize the performance and latency of node operations.
• Apply best practices for network and node security, managing RPC endpoints, validator keys, and public/private key pairs.
• Implement and manage CI/CD pipelines for efficient deployment, testing, and monitoring of node software upgrades.
• Work closely with our trading and research teams to support new chain integrations and optimize existing ones.
• Design and implement failover and backup strategies to ensure business continuity for 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 a 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 and programming languages (Bash, 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 fiercely passionate people who understand themselves and their career goals. We're after those with the right skills and a conscious…