Systems Engineer (SRE III) (Email Infrastructure): Building and operating reliable, scalable email infrastructure and automation systems with an accent on MTAs, SMTP delivery, and infrastructure automation. Focus on designing highly available pipelines, ensuring system security, and managing complex email delivery environments at scale.

Location:

Must be based in or able to commute to Madrid or Prague

Company
Groupon is a integral marketplace that connects millions of customers with local businesses through a performance-based platform.

What you will do

Design, configure, and operate high-scale Mail Transfer Agents (MTAs) and SMTP services.

Develop and manage Infrastructure as Code (IaC) using Terraform and Ansible.

Automate system provisioning and deployment workflows using CI/CD pipelines.

Ensure 99.5% SLA for email delivery by monitoring system health and security.

Troubleshoot delivery issues including bounces, blocks, and reputation management.

Participate in on-call rotations and lead incident response for infrastructure services.

Requirements





Bachelor’s degree in Computer Science, Engineering, or equivalent

5+ years of hands-on experience in systems engineering, infrastructure, or DevOps

Strong proficiency with Linux and shell scripting

Practical experience with SMTP, DNS, TLS, and email security (SPF, DKIM, DMARC)

Professional experience with Ansible, Terraform, and CI/CD tools like Jenkins

Experience with cloud platforms (AWS, GCP, or Azure) and network infrastructure

Nice to have

Experience with specialized email services like KumoMTA, Amazon SES, or SendGrid

Proficiency with monitoring/observability tools (Prometheus, Grafana, Nagios)

Experience managing high-volume email delivery systems

Familiarity with Git-based collaborative version control

Culture & Benefits

Innovative, risk-taking culture that rewards performance and autonomy

Opportunity to work on large-scale systems with significant impact

Access to resources of a large-sca

📌 Systems Engineer (Madrid)
🏢 Talanto
📍 Madrid