Senior Site Reliability Engineer

TL;DR

Senior Site Reliability Engineer: Maintaining and evolving AWS and Kubernetes infrastructure for Python-based AI services with an accent on platform reliability, developer experience, and infrastructure as code. Focus on migrating services to Kubernetes, improving CI/CD pipelines, and owning observability efforts.

Location: This is a hybrid role based in Barcelona, Spain. Relocation support is provided for you and your family.

Company

Manychat is building a leading Chat Marketing platform used by over 1.5 million customers worldwide, focusing on Instagram, Messenger, WhatsApp, and TikTok automations.

What you will do

• Maintain and harden AWS infrastructure (EC2, ALB/NLB, WAF, IAM, CloudWatch)
• Operate and evolve EKS clusters powering Python-based AI services
• Migrate existing services to Kubernetes using Terraform and Helm
• Codify infrastructure with Terraform and manage host-level automation via Ansible
• Build and improve CI/CD pipelines with GitHub Actions
• Own observability efforts: Prometheus, Grafana, alerting, and on-call readiness
• Support OS-level patching, certs, WAF rules, and general infra hygiene
• Partner with engineers to guide best practices and drive platform reliability
• Create clean, maintainable infrastructure documentation and playbooks
• Occasionally support rare off-hours incidents

Requirements

• 5+ years of experience managing Linux in production (Ubuntu, Amazon Linux)
• Strong experience with Kubernetes (ideally EKS), Helm, and Terraform
• Comfort with running and debugging Python workloads in containers
• Solid understanding of networking, IAM, and cloud security best practices
• Hands-on Nginx experience (Ingress and reverse proxy setups)
• Excellent communication skills to explain complex infrastructure to developers clearly

Nice to have

• Strong Ansible skills beyond the basics
• PostgreSQL or Amazon RDS tuning and operations experience
• Deep understanding of observability tools (Prometheus, Grafana, Loki, etc.)
• Familiarity with PHP production environments
• Experience with TDD, CI/CD best practices, and agile development
• Any previous SRE-like exposure such as building resilience, automation, or incident tooling

Culture & Benefits

• Hybrid onboarding to start work remotely, with relocation support for you and your family
• Comprehensive health insurance for both you and your family
• Professional development budget for conference tickets, online courses, and other relevant resources
• Flexible benefits package to tailor perks that matter most for you
• Hybrid work and generous leave options to prioritize work-life balance
• In-office perks, including free meals and snacks
• Company-funded sport activities, annual offsites, and team-building events