Senior Site Reliability Engineer

About the role

Nexthink, a SaaS provider of digital employee experience management software, is looking for an experienced, proactive and innovative Senior Site Reliability Engineer in Madrid. The SRE team strengthens the infrastructure and improves the ability to deploy, monitor and scale systems, working closely with over 50 Product Engineering teams and the Technical Platform Engineering, Security and Architecture teams. The position is full-time and hybrid.

Key responsibilities

• Implement and manage cloud-native systems (AWS) with automation.
• Operate and improve Kubernetes clusters, deployment pipelines and service meshes.
• Build and maintain the infrastructure of the multi-tenant SaaS platform.
• Define and maintain SLOs, SLAs and error budgets, and address availability and performance issues.
• Write infrastructure-as-code (Terraform or similar) and build internal platform tools and automation.
• Monitor infrastructure and applications, and take part in a shared on-call rotation, including acting as Incident Commander and improving MTTD and MTTR.
• Work with software engineers to embed observability, fault tolerance and reliability, and automate runbooks, health checks and alerting.
• Support automated testing, canary deployments and rollbacks, and contribute to security, compliance and cost optimisation.

Required profile

• Minimum Bachelor's degree in Computer Science or equivalent practical experience.
• 5+ years as a Site Reliability Engineer or Platform Engineer.
• Strong hands-on experience with public cloud services (AWS, GCP, Azure) and SaaS products.
• Experience with multi-tenant microservices architectures and production systems.
• Comfortable with rotating on-call schedules, incident management and post-incident reviews.
• Excellent English, written and spoken.

Required skills

• Programming or scripting (e.g. Python, Go, Bash) and infrastructure-as-code (e.g. Terraform).
• Kubernetes, Docker and Helm.
• CI/CD tools (e.g. Jenkins, GitHub Actions, GitLab CI, FluxCD, Crossplane).
• Monitoring (e.g. Datadog), Linux, networking and the TCP/IP stack.
• Blue/green and canary releases; SOC 2, ISO 27001 or HIPAA exposure is a plus, FedRAMP a big plus.

What we offer

• Permanent contract with stock options and a competitive package.
• Hybrid work model and flexible hours.
• Private health insurance and meal vouchers, unlimited vacation plus 3 volunteer days.
• Gym subscription allowance, flexible childcare and transport reimbursement, and English/Spanish course reimbursement.