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Halian - Middleware Software Engineer



You will take responsibilities in a broad range of architecture, infrastructure and security engineering activities, covering the entire IFS IT landscape. As such, you will be a key member of the working group in charge of designing, delivering for, and supporting those areas. Your assignments will include:

  • Designing, developing and delivering Web server, Application Server and Messaging Middleware infrastructures.
  • You will target both On-Premise and public Cloud deployments, using IaaS and PaaS/SaaS models
  • Working in autonomy and acting as lead for the projects assigned to you; coordinating the work of a small team when required
  • Assessing new infrastructure solutions and innovative technologies
  • Maintaining and developing Java/JavaEE integration components such as security modules and Resource Adapters, including their documentation and test suites
  • Maintaining and developing the related automation frameworks and DevOps connectors, including their Documentationmanaging in autonomy the relation with the development, infrastructure and security teams to which you will be delivering Middleware solutions
  • Creating and documenting the architecture and security of IFS systems, including for critical Internet customer-facing applications; you will also be working on the applicable processes and standards
  • Working with the other Domain Experts of the group and reporting to the group lead
  • Participating in approx. 4 major production implementations each year (Saturday work)
  • Interacting with the Middleware/security software vendor's support engineers


Qualifications/required skills

  • Master's Degree (or equivalent) in a computer science
  • Knowledge of the challenges posed by multi-tier Web infrastructures, especially in the areas of security, Web servicing, messaging and transaction management
  • Ability to take, justify and challenge technical architecture decisions
  • Hands-on experience in configuring, deploying, operating and supporting a Web application infrastructure including a Web server (preferably Apache HTTPD) and a Java application server on Linux.
  • Knowledge of a messaging Middleware infrastructure will be an asset
  • Experience in application security design and vulnerability assessment, especially for Web Internet facing applications. Knowledge of a Web Application Firewall solution (preferably F5) and an SSO infrastructure will be an asset
  • Practical knowledge of TLS (PKI), including its configuration in Middleware software; practical knowledge of certificate/key deployment
  • Ability to structure and document architecture and security concepts; very good English technical writing skills
  • Practical experience in the following technologies:
    • Linux OS
    • a Version Control System, preferably GIT
    • an IDE (preferably IntelliJ or Eclipse)
    • JavaEE services/APIs and their configuration in an
    • application server
    • XML and XML Schema
    • Apache Maven
    • Additional assets will be: experience with public Cloud APIs (preferably Microsoft Azure); experience with Ansible, Ant, Jenkins, Docker, Kubernetes, RedHat OpenShift.
  • Proficiency in written and spoken English; French and German language skills will be an asset



  • Contract : FTE
  • Location : Luxembourg
  • Start Date : ASAP

Company description

As an international IT services company, Halian have worked hard for 20 years to understand the issues that keep our customers awake at night and to create the answers that make their lives a little easier.
Our mission - the goal that's shared by everybody at every level - is “to deliver the best people and technology services in order to help Halian's customers do more; faster, better, and more cost-effectively than ever before."
We're able to do things differently because we think and act differently - the Halian Way is based on rapid service and speedy results, and at its heart lie five key values:
Partnership, Respect, Intelligence, Dedication, and Energy.

Halian has offices in the UK, Luxembourg, Dubai, and Qatar, and have more than 500 employees all over EMEA. We work with some of the world's most ambitious and dynamic organisations, such as Public and European Institutions, Finance, Oil and Gas, Healthcare and Pharmaceuticals, and partner with industry leading hardware and software vendors. When you join Halian, you will help integrate one of our three service lines: Managed Services, Resourcing Services, or Project Services. You are able to deal with a variety of technologies in critical environments, and make a positive contribution to our customers business. In return, Halian will support the development of your career via different programmes already in place. Halian has built a strategy based on confidence with its customers and partners, and it's these strong links that allow Halian to provide you with job offers not often available on the open job market. Each role is a new challenge to take on!

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