Senior AWS DevOps/SRE contractor

HelpMyCash | Senior AWS DevOps/SRE contractor | Remote EU/CET | Freelance + paid on-call
HelpMyCash is a Barcelona-based financial comparison platform. We're looking for a senior freelance DevOps/SRE to act as the operational safety net for a mature AWS production platform.
This is explicitly an insurance role: keep the platform reliable, no major evolution or greenfield work. The platform has run reliably for years (no critical outages unrelated to deploys/changes in 5+ years) — we want someone to keep it that way.
Engagement:
~4h/week retainer
paid on-call for critical incidents
planned/larger tasks quoted separately
fully remote, EU/CET, reachable during Spanish business hours
Compensation: retainer + hourly rate + on-call premium for out-of-hours response. Exact structure and rates open to discussion based on your model.

Work: monitoring, alert triage, routine maintenance, incident response, certificates/security updates, and infrastructure decision-support. No application development or architecture ownership expected.
Stack: AWS Elastic Beanstalk, ECS, Lambda, RDS, ElastiCache, Redshift, S3, SQS, CloudFront, WAF, Route 53, IAM, CloudWatch; MongoDB Atlas, Elastic Cloud, n8n, Metabase, Sentry, Bitbucket Pipelines.
Looking for someone senior who can handle incidents independently and is comfortable with a stable-platform maintenance/on-call role.
Apply: https://uilab-n8n.helpmycash.com/form/devops-application?sou... (full job description linked from the form).