Java / Middleware Developer (Engineering Services) -USA (m/f)

Open-Xchange GmbH · Jan 10th 2018

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Your Passion / Your Job

  • Design and develop high-volume, low-latency custom solutions for mission-critical systems, delivering high-availability and performance

  • Complete applications development by coordinating requirements, schedules, and activities; contributing to team

  • Utilize the latest technology and programming techniques to realize the full capacity of OX

  • Ensure designs are complete and in compliance with specifications

  • Support continuous improvement by investigating alternatives and technologies

  • Analysis of technical problems and communication with our customers in cooperation with our support team

  • Must be very organized with a strong ability to complete work in an environment with multiple daily interruptions. Able to multi-task. Excellent attention to detail and ability to work well under pressure.

  • Support of our Sales-Engineering Team in technical questions for customer requests

  • Strong Customer relationships and service deliveries are part of your daily work  

What do you bring to the table

  • BS/MS degree in Computer Science, Engineering or a related subject

  • Proven hands-on Software Development experience

  • Proven working experience in Java development

  • Object Oriented analysis and design using common design patterns

  • Excellent knowledge of Relational Databases and SQL (MySQL, Galera)

  • Experience with test-driven development

  • Experience re-factoring existing code to improve readability, code reuse, performance, and maintainability

  • Experience in developing web applications

  • Fundamental knowledge of using the OSGi framework, LDAP and Unix-/Linux based applications

  • Good understanding of revision control systems (eg. GIT or SVN)

  • A bonus would be: Experience constructing RESTful endpoints for UI consumption and knowledge of Linux and Internet Services like Apache

  • Good organizational skills and a proven ability to work as a member of a team and individually

  • The ability to multi-task and work effectively in a high pressure environment

  • Strong customer focused, team oriented communication skills with emphasis on IT Infrastructure and software development.

  • Communication skills that allow you to inform, help and advise customers clearly and to liaise effectively with other professionals listening skills, to understand exactly what customers require

  • Good verbal and written communication skills in English

What do we offer

  • Working on a modern cloud software in an international team

  • Wide scope to develop your own ideas for our product

  • HomeOffice and the opportunity to work from one of our well-appointed worldwide offices

  • The most current and jazzy equipment

  • Continuous personal development & training

  • Flat hierarchies combined with a "Open Door" policy

** Open-Xchange / Open people for Open source**

With some 250+ employees Open-Xchange develops a Open-Source-Software addressing communication, collaboration and office-productivity worldwide. Sales are made through Internet service providers, hosting, telecommunication and cable providers, which offer their customers the Open-Xchange solution as SaaS (Software as a Service). More than 200 million users adopted Open-Xchange software for their private and business communications via partners such as 1 & 1, STRATO, Host Europe, NetCologne, network solutions / and Rackspace.

The core offer is named OX App Suite with applications for processing e-mails, contacts and appointments, which can be extended by functions like: OX Drive for managing and synchronizing documents, images, photos and movies; OX Documents for text processing, spreadsheets and presentations and OX Guard for encrypting emails and files. Software from Dovecot and PowerDNS are complementing Open-Xchange's portfolio.

We want to constantly advance and are looking for people who have fun working with the latest technologies in an international team. There are locations in Hamburg, Bremen, Dortmund, Cologne, Olpe and Nuremberg as well as Finland, France, the Netherlands, Italy and Spain. International offices are in Tokyo, Sydney and Palo Alto which represents the distributed team in the USA.

If you are interested, please contact Jochen F. Schude for further information - or send us your paperless application with a cover letter including the job ID, tabular CV, certificates, salary request and the earliest possible date of entry by e-mail to recruiting at

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