1&1 Internet Development
1&1 Internet Development

1&1 Internet Development

We’re always set to make things that seem impossible today happen tomorrow.

Senior Back-end Developer with Java and Spring Boot for Free Products Development Team (full remote / hybrid) | 1&1 Internet Development
  • Work place: Hybrid

  • Collaboration: Employment contract

  • Work time: Full Time

  • Seniority: Team member

  • Updated on: 4 months ago

  • Vacant from: 25 May, 22

  • Expires on: 31 Dec, 22

  • Pay: Negotiable

  • Categories: Backend

  • Size:101 - 500 employees

  • Industry:Information Technology and Services

Market (net €/month)
  • Only Loginro members with a minimum completed profile that share their salary expectations for this position may access its industry median pay.

About the company:

1&1 Mail & Media operates Web.DE and GMX, two of Germany's largest Internet portals, as well as an Internet portal catering to an international audience, mail.com. Through these brands, we are able to reach over 42 million users monthly, hosting 55% of Germany’s email accounts.

In addition to a large editorial news section and Germany's by far most popular free e-mail service, 1&1 Mail & Media offers paid subscriptions to a variety of internet-based services, such as paid e-mail accounts, virus protection software or web hosting services. 

About the projects:

In Romania, 1&1 Mail & Media is developing applications related to calendaring (Calendar product), document editing and viewing (Online Office product), messaging, web hosting and a customer care tool.

Our team is looking for a new colleague to join us and work on the products we are responsible for:

The Online Office is a suite of applications that allow users to edit or view files from their Online Storage in the different Portal solutions offered by 1&1. Both the editor and the viewer use as document processor engine the open source Libre Office and Collabora Online product, to which we are contributors. 

The Calendar is an application that offers calendar-specific features like managing different topics related calendars, events, invitations, possibility to integrate with external calendar, import ics events from other systems, integrate with known Calendar clients through the CalDAV protocol. The Calendar engine with the CalDAV protocol implementation is COSMO, an open source project that 1&1 is the owner of and where we are main contributors.

The Mail Support Tool, which is a key centralized customer information tool developed for Customer Care. It is directly connected to the customer care ticketing system and gathers all relevant information via dedicated APIs which connect to all the portal products.

Main responsibilities:

  •  Implement new features based on requirements received from the Product Owner;
  •  Focus on code quality, security and scalability;
  •  Participate in the products architecture when needed;
  •  Teach and be a mentor for junior team and project members;
  •  Closely collaborate with the other team members and stakeholders, but also with colleagues responsible with other products in order to achieve a high level of integration between systems;
  •  Possibility to contribute to complex open-source projects like Libre Office, Collabora Online and Cosmo.


We appreciate:

  •  Relevant professional experience;
  •  Very good knowledge in Java, Spring, Spring Boot, Maven;
  •  Very good knowledge in REST services;
  •  Strong understanding of data structures, design patterns, concurrency and scalability;
  •  Experience with MySQL/Redis/Cassandra is nice to have;
  •  Experience with Docker, Kubernetes, Gitlab, JFrog, Jenkins is nice to have;
  •  Openness to work full stack (Java, JavaScript, Docker, Kubernetes);
  •  Fluent in English (both written and spoken);
  •  Highly motivated, self-driven and result-oriented;
  •  Very good communication skills and a great team player.

What we offer:

  •  Access to local/international trainings, development and growth opportunities, including e-learning platforms access, covering both technical and soft skills areas;
  •  Modern technologies, product responsibility;
  •  Flexible work schedule;
  •  Full-remote or hybrid work possibility when back to office;
  •  Medical services package from one of two private providers;
  •  25 vacation days per year;
  •  Substitute days off for public holidays that occur on the weekend;
  •  Meal tickets;
  •  Internal referral program;
  •  Team events, networking events organized to promote a passionate, creative and diverse culture;
  •  Of course, coffee, soft drinks and fresh fruits are on us in the office.

Available in


Benefits included

Meal tickets

Medical subscription

Medical benefits for family

Additional vacation days

Remote working (offsite)

Work from home

Flex time (07:00 - 19:00)

Office perks (ping-pong, juice, gaming spaces ie)

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