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Halian - Senior Network Administrator



In a diversified and modern technical and operational environment, you will ensure the daily management and evolution of our IT Network.


You will be part of a dynamic team and a collaborative environment in which we favour an Agile methodology approach. 


You will benefit from the expertise of the team members on a daily basis and will work in an environment that offers you the possibility of expanding your technical and functional competencies.



You will be required to

  • determine, evaluate and implement the IT network and technical security infrastructure according to the current and future needs of the company and in line with our security standards,
  • manage:
    • the company's IT network (LAN, WAN, WiFi) and its equipment (Extreme Networks and Cisco technologies),
    • network controls and monitoring tools based on SNMP and NetFlow,
    • load-balancers to ensure the high availability of applications and internet links
    • security tools: next-generation Firewalls, application Firewalls (WAF), Network Access Control, Web proxy, sandbox technology, mail GateWay, strong authentication solution, IPS probes, etc.
  • lead technical projects through all their phases and participate in the different steps of the release planning process,
  • ensure the drafting and update of technical documentation and operating procedures,
  • contribute to the preparation of the budget and monitoring of expenditures and suppliers in terms of quality of services and support provided,
  • be the point of contact for the auditors and the CISO concerning network security aspects,
  • ensure security of Hardware and software components, monitor vulnerabilities and security incidents and implement corrective measures,
  • bring in your expertise to the company's projects.


Your profile

  • Master's degree in computer science and at least 5 years' experience in a similar role, 
  • You have a good knowledge of IT network components (switches, routers, ...), security equipment (Firewall, proxy, mail relay, ...) and security software,
  • You are rigorous, flexible and innovative,
  • Knowledge of French and English is required.


We can offer you

  • Varied work as part of a dynamic and ambitious company that has been established in the Grand Duchy of Luxembourg for over 20 years,
  • An attractive remuneration scheme: Company Agreement, 34.5 days' leave, meal vouchers, life and disability insurance, pension scheme, interest subsidies, Sympass card, offices located close to the central railway station in Luxembourg, etc.

Description société

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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