Fibre Optics Technical Engineer (EN-EL-FO-2022-138-LD)

  • Contract

Company Description

At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on

Job Description


The Engineering Department (EN) pushes back the limits of technology so that physicists can carry out their research. Within the Electrical Engineering Group (EL) of the EN department, you will join the Fibre Optics Section (FO), which is in charge of CERN's optical fibre infrastructure. The section ensures the technical expertise in the field of fibre optics, and provides optical structured cabling for multiple systems on the CERN site, including in the accelerators and experimental areas. The Section provides engineering support to the CERN users, centralises their cabling requests and organises the installation activities through external industrial-support contractors. Additionally, the Section carries out research on specialty fibres for both communication and sensing applications, and provides fibre-based systems for radiation dose monitoring.

Are you skilled in the domain of fibre optics technology, who is ready to take on challenging installation projects whilst bringing innovation to the related engineering tools? Are you willing to contribute to the continuous extension, consolidation, and maintenance of CERN’s optical fibre network constituting the infrastructure for the major communication systems of the various accelerators, including CERN’s current leading project: the High-Luminosity Large Hadron Collider (HL-LHC). Take part!


As a Fibre Optics Technical Engineer, you will:

  • Take responsibility for technical studies and design, particularly for projects concerning the definition and implementation of optical fibre cabling systems;
  • Organize and supervise optical fibre cabling installations and acceptance tests, ensure worksite coordination and supervision of contractors in charge of installation, and respect of safety rules;
  • Define optical cabling strategies, installation methodologies, naming conventions, and testing procedures.
  • Take responsibility for the optical fibre database and engineering tool, including quality data management and periodic software development and tests with the supplier;
  • Organise the smooth execution of industrial supply and service contracts;
  • Draw up technical specifications, technical notes, test procedures, and periodic reports on activity progress, costs, schedule;
  • Conduct market surveys and product studies to advise and give expert assistance to optical fibre users; specify and purchase optical measurement equipment.


Bachelor's degree or equivalent relevant experience in the field of Telecommunication Engineering, Electronics, or a related field.


The experience required for this post is:

  • Demonstrated experience in deployment of optical fibre cabling, in particular by air-blowing method;
  • Demonstrated experience in testing and measurement of optical fibres;
  • Proven experience in dealing with contractors and sub-contractors;
  • Demonstrated experience in managing databases and related software;
  • Proven experience in drawing up technical documentation and reporting.

Technical competencies:

  • Knowledge of database and/or data mining architectures and technologies;
  • Testing, diagnosing and optimization of software;
  • Knowledge and application of optical cabling systems design and implementation techniques, including air-blowing techniques;
  • Knowledge and application of testing and measurement equipment for optical fibres;
  • Drafting of technical notes or test procedures.


Behavioural competencies:

  • Managing Self: taking initiative beyond regular tasks and making things happen;
  • Achieving Results: driving work / projects along and seeing them through to their conclusion;
  • Solving Problems: anticipating obstacles; assessing alternative solutions in order to have a fall-back plan;
  • Working in Teams: contributing to promoting a positive atmosphere in the team through an optimistic and constructive attitude; addressing issues;
  • Communicating Effectively: listening actively to others and letting others speak Checking to ensure that the message has been well understood.

Language skills:

  • Spoken and written English: ability to understand and speak the language in professional contexts. Ability to draw-up technical documents and to make oral presentations.
  • Spoken French: ability to understand and entertain basic conversations.

Additional Information

Eligibility and closing date:

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 29.11.2022.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

These functions require:

  • Work in Radiation Areas.
  • Interventions in underground installations.
  • A valid driving licence is required.
  • Work during nights, Sundays and official holidays, when required by the needs of the Organization.
  • Shift work, when required by the needs of the Organization.
  • Stand-by duty, when required by the needs of the Organization.

Job grade: 4-5

Job reference: EN-EL-FO-2022-138-LD

Benchmark Job Title: Electronics Technical Engineer

Privacy Policy