Python Software Engineer (BE-CSS-IDE-2026-114-LD)

CERN (Genève GE, Suisse) Suivre Publié il y a 10 heures

Contract

Python Software Engineer (BE-CSS-IDE- -LD)

Posted:

Job reference: 78bb3facbedcfc2e34e529b9bf988d6c

Job information

Location: CERN, Switzerland

Contract type: Limited duration contract (5 years), with possibility to extend up to 8 years and eligibility for indefinite contract subject to conditions.

Working Hours: 40 hours per week.

Job Flexibility: Hybrid

Job grade: 6‑7

Responsibilities

Design and maintain Python bindings to the accelerator control system using REST, gRPC, event‑driven messaging (e.g., ZMQ), and bindings to existing C++ and Java libraries.
Build reusable components, widgets, and libraries supporting control application development at CERN.
Develop and maintain PyQt6‑based control applications used in the CERN Control Centre.
Contribute to the selection and configuration of a coherent DevOps toolchain for Python, covering dependency management, packaging, testing, CI/CD, and deployment monitoring.
Collaborate with user communities to establish and document best practices for developing Python‑based control applications.
Contribute relevant developments back to the open source community.
Take ownership of key systems or tools, driving their evolution through active engagement with stakeholders.
Mentor junior engineers, sharing knowledge and supporting their growth.

Qualifications

Master’s Degree or equivalent experience in Computer Science or a related field.
Extensive experience with Python, including typed Python and asynchronous programming patterns.
Advanced knowledge of API and application design, with proven experience designing and evolving client‑oriented APIs and SDKs.
Solid grasp of platform engineering principles and modern software engineering practices, including quality assurance and DevOps.
Knowledge of Qt and its Python bindings (PyQt or PySide) is a plus; willingness to learn is equally valued.
Experience in UI design with a strong focus on usability and developer experience is desirable.
Comfortable working across a broad and evolving technology landscape, with curiosity and initiative to develop new expertise as the role demands.

Technical competencies

Knowledge of programming techniques and languages.
Design of databases/repositories.
Architecture and design of ICT systems.
Identification and selection of relevant emerging ICT technologies.
Conceptualising, designing and developing user experiences and interfaces.

Behavioural competencies

Achieving results: delivering high‑quality work on time.
Solving problems: adopting a pragmatic approach, favoring generic solutions.
Working in teams: positive, constructive attitude.
Accountability: conscientious, reliable, delivering on promises.
Flexibility: adapting quickly to shifting priorities.

Language skills

Spoken and written English; commitment to learn French.

Benefits

Competitive tax‑free salary, increasing with experience.
30 days of paid leave per year plus 2 weeks annual closure.
Coverage by CERN’s comprehensive health insurance scheme (for you, spouse and children).
Membership of the CERN Pension Fund.
Family, child and infant monthly allowances, depending on circumstances.
Relocation package (installation grant, removal, travel expenses) depending on circumstances.

Employment Conditions

Contract type: Limited duration contract (5 years); holders may apply for an indefinite position subject to conditions.
Working Hours: 40 hours per week.
Job Flexibility: Hybrid.
Job grade: 6‑7.

Legal statement

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization.

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