Research Fellowship in Software Engineering (Python)


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

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the organisation. See how we’re improving this further here. The international and multi-disciplinary environment makes CERN a truly unique place to work and learn.


Job Description

The CERN Scientific Information Service Group  is seeking a Software Engineer. You will be part of an agile team working in Tools & Services section and you will contribute in one of the following projects:

  1. The development and operation of the INSPIRE service for High Energy Physicists, a live system with thousands of users every year, with high throughput REST APIs, and a state-of-the-art UX. You will work closely with our collaborators from 6 international institutions to design, develop, and deploy services and tools that strive to help researchers throughout their career to generate ideas, build projects, establish collaborations, and publish results of any kind (from data, code, slides to the preprints and published articles).
  2. A joint project with that is expected to be funded by the European Research Council (ERC). is the world's largest preprint repository and as such a prime service for researchers to deposit their work. Most of the work will be in Python and you will collaborate with arXiv software engineers to develop the new data model, create a crosswalk between legacy and new data model, backfill of arXiv records and extend the current search API.

As part of the team, you will work closely with other projects in the CERN Scientific Information Service Group to design, develop and deploy new features in-line with best practices in the open science and research movement. Additionally, you will also contribute to open-source projects and collaborate with the CERN Information Technology department. 



Eligibility criteria

  • You are a national of a CERN Member or Associate Member State;
  • You have a bachelor or master’s degree in Computer Science, Engineering or other related fields;
  • You have no more than 4 years’ experience after completing your highest diploma.

Essential skills and experience

  • Experience in coding in Python;
  • Ability to use relational and document-based databases (e.g., PostgreSQL, ElasticSearch);
  • Experience with creating robust REST APIs;
  • Interest in software development and building and evolving robust, secure software components and tools.

Desired skills and experience

  • Knowledge of container technologies (e.g., Docker, Kubernetes or OpenShift);
  • Knowledge of XHTML, CSS, and web technologies.

Please note that CERN Staff members are not eligible to apply for a Fellowship.


Additional Information

CERN would very much like to benefit from your expertise, commitment and passion. 

In return, CERN will provide you with:

  • An employment contract for between 6 months (minimum) up to 24 months, with a possible extension up to 36 months.
  • A stipend ranging from 5,305 to 6,586 Swiss Francs per month (net of tax).
  • Coverage by CERN’s comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
  • Depending on your individual circumstances: an installation grant, family, child and infant allowances as well as travel expenses to and from Geneva.
  • 2.5 days of paid leave per month.

Your Life @CERN

Get a glimpse of what it’s like to work at CERN: and

How to Apply:

You will need the following documents to complete your application:

  • A CV (Resume) 
  • Your most recent relevant qualification. (Degree)

We recommend you add two recent letters of recommendation, giving an overview of your academic and/or professional achievements. You can upload these letters at the time of application if you have them to hand. You will also be provided with a link as soon as you have submitted your application to forward to your referees to upload their letters confidentially. Please note this must be done before the closing date.

All applications should reach us no later than 27 January 2022.