IT Support Service (m/f/d) - Email Services

Become IT Support Service (m/f/d) - Email Services at Retarus.

Retarus is a worldwide provider of cloud-based messaging solutions at enterprise scale. We serve over 40% of the companies listed on the S&P Global 100, e.g. Adidas, Bayer, SAP, BNP Paribas, Goldman Sachs, T-Systems, Swarovski & UPS, as well as governmental agencies and major players in markets across the world. Privately owned and founder-managed for over thirty years, Retarus is customer-oriented, stable, a fair employer, and a strategic business partner with a long-term vision. With some 500 employees in 19 offices on four continents, Retarus operates locally and thinks globally: our teams are organized across borders and are highly integrated. This makes Retarus a multicultural, multilingual, and engaging workplace. We are committed to creating a diverse and dynamic environment for our employees, with generous compensation, time off, and a global, collaborative workplace.

What we offer

• Mobile working and flexible working time
• Collaborative, diverse company culture and superior team spirit
• Flat hierarchies and great feedback culture
• Development opportunities & career perspective
• International business & cross-site collaboration
• Modern, dog-friendly offices with nice amenities
• Company-paid health insurance, public transportation, lunch vouchers and further benefits

What you'll do

As Lead or Senior IT Service Engineer, you will play a key technical role in the operation of our email based services and act as a trusted technical point of contact for our customers. You will ensure reliable and efficient operation, and continuous improvement of our secure email gateway, email encryption and transactional mail services.

Key Responsibilities:

• Support, investigate, and troubleshoot issues involving SMTP, DNS, TLS, authentication, filtering, and networking in a Linux-based environment
• Handle complex customer cases and act as a senior escalation point
• Coordinate incident response, communication, and resolution
• Work with engineering and infrastructure teams on root-cause analysis and service improvements
• Create technical documentation and mentor junior staff

What you'll need

• Strong knowledge of email protocols, DNS, networking, and IT security, combined with practical experience in production environments
• Experience handling customer escalations and production incidents, including structured troubleshooting and incident resolution
• Hands-on experience with monitoring, ticketing, and incident management tools as well as log analysis and automation using Bash, Python, or comparable scripting languages
• A customer-focused and hands-on mindset, strong problem-solving skills, and excellent communication skills
• Fluent English (C1); German or French at B2 level or above is a plus, as are additional languages such as Spanish or Italian
• Nice to have: experience with configuration management and automation tools such as Salt, Ansible, Puppet, or Chef
• Nice to have: experience with monitoring and observability tools such as Checkmk, Prometheus, Grafana, or Loki
• Nice to have: experience with containerized environments and orchestration, particularly Docker and Kubernetes

What you can expect

At Retarus, you will work on impactful and dynamic projects, with real opportunities to make a difference. Our customers are leaders across diverse industries, with constantly evolving needs and high expectations. You’ll be working with cutting-edge technology and great creative leeway to meet customers’ needs – and the projects you work on will be deployed globally. Working at Retarus, you will collaborate closely with convivial, culturally diverse teammates. You will grow professionally in a dynamic and exciting workplace and design impactful solutions in real time with top companies.

Very important

Come as you are. Retarus is committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or veteran status.

Apply via our online application portal – it’s easy and doesn’t take long. Our colleague Alissa Selman is happy to field any questions you may have: [email protected]

We’re looking forward to getting to know you!