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Groupon Logo Groupon · IT - Software Development

Systems Engineer (SRE III) - Email Infrastructure & Automation

India, Bangalore · Job Posted January 05, 2026
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Job Description

Groupon is looking for a Systems Engineer (SRE III) to join the Marketing Engineering team, focused on building and operating reliable, scalable email infrastructure and automation systems. In this role, you will work on email delivery platforms, system infrastructure, and automation pipelines that support large-scale customer communications.

Job Responsibility

  • Design, configure, and operate Mail Transfer Agents (MTAs) such as Postfix, Sendmail, or Exim, along with SMTP servers
  • Build and maintain email notification systems used by multiple services and teams
  • Develop and manage Infrastructure as Code (IaC) using Terraform and Ansible
  • Automate system provisioning, configuration, and deployment using CI/CD pipelines, primarily with Jenkins
  • Ensure high availability, performance, and security of email and system infrastructure
  • Monitor email delivery and system health to consistently meet a 99.5% SLA
  • Troubleshoot email delivery issues, including bounces, blocks, throttling, and reputation-related problems
  • Implement and maintain email security best practices, including DNS, SPF, DKIM, and DMARC
  • Maintain clear documentation and runbooks for infrastructure and operational processes
  • Participate in on-call rotations and support incident response when required

Requirements

  • Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience
  • 3+ years of hands-on experience in systems engineering, infrastructure, or DevOps roles
  • Strong experience configuring and operating MTAs and SMTP-based systems
  • Solid understanding of SMTP, DNS, TLS certificates, and email deliverability best practices
  • Practical experience with Ansible and Terraform for infrastructure automation
  • Strong experience with Linux systems and shell scripting
  • Hands-on experience with CI/CD pipelines, especially Jenkins, for build and deployment workflows
  • Experience in troubleshooting email delivery, bouncing, blocking, and security-related issues
  • Experience working with cloud platforms such as AWS, GCP, or Azure, including end-to-end migrations
  • Good understanding of cloud networking, including VPCs, subnets, routing, BYOIP processes, ARIN IP management, and IP propagation to ISPs

Nice to have

  • Experience with cloud-based email services such as KumoMTA, MTA Bird, Amazon SES, SendGrid, or Mailgun
  • Familiarity with Git-based version control and collaborative workflows
  • Experience using monitoring and observability tools like Prometheus, Grafana, or Nagios
  • Exposure to high-volume or large-scale email delivery systems
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