Site Reliability Engineer

Site Reliability Engineer – Fin Tech Infrastructure

Up to £110K + Shares + Benefits | Remote First (UK/Europe)

Plan A Digital are recruiting for an innovative Fin Tech company transforming connectivity and infrastructure for financial markets. We are seeking a Site Reliability Engineer to join a collaborative SRE team and help automate, maintain and scale the infrastructure that powers mission‑critical trading connectivity services used by leading financial institutions.

• Automate server and network provisioning across physical infrastructure and cloud environments (AWS/GCP)
• Enhance and evolve CI/CD pipelines for infrastructure provisioning and software deployments
• Support the delivery of highly available, scalable and reliable production systems
• Work closely with hardware vendors, telecom providers and financial institutions
• Contribute to a culture of automation, continuous improvement and shared ownership across the technology estate
• Participate in infrastructure projects spanning data centres, networking, cloud platforms and end‑user systems
• Ability to code and build software solutions using a language such as Python, Go, Java or similar
• Strong experience with infrastructure automation tools such as Ansible
• Background in Systems Administration, Network Engineering, or a blend of both disciplines
• Server provisioning (cloud and bare metal)
• Good understanding of Linux systems, server provisioning and infrastructure management
• Experience working with cloud platforms such as AWS and/or GCP
• Knowledge of networking fundamentals including routing, switching, TCP/IP and connectivity troubleshooting
• Experience managing third‑party vendors and technology suppliers
• Comfortable taking ownership, working autonomously and solving complex infrastructure challenges
• Passion for continuous learning and improving operational efficiency through automation
• Authentication and identity technologies including SAML, OAuth2, Kerberos and Active Directory
• Microsoft Active Directory and Azure Active Directory (Entra )
• Database high availability technologies including PostgreSQL clustering and replication
• Experience supporting hybrid environments spanning physical infrastructure and cloud services
• Exposure to financial services, low‑latency environments or trading infrastructure

• Join a highly skilled and collaborative infrastructure team
• Work across cloud, networking, automation and data centre technologies
• Enjoy significant autonomy and ownership in a remote‑first environment
• Help shape the automation and infrastructure strategy of a growing Fin Tech business
• Competitive salary, shares package and comprehensive benefits