Your responsibilities
We are looking for a talented Web Developer to enhance and maintain the DCA web tool, which interacts with an ORACLE database for the CMS Phase-2 Tracker Upgrade. This tool tracks the construction of the new Tracker Detector, and you will play a key role in ensuring its functionality, performance, and usability.
Working closely with project and database teams, you will implement improvements such as enhancing component display with full history tracking, developing monitoring panels for construction stages, and optimizing data filtering. You will also maintain Java services for data upload and queries and address issues during database commissioning. Responsibilities
Web Tool Development & Maintenance: Design, develop, and optimize web-based tools for CMS Phase-2 construction tracking, ensuring reliability, scalability, and performance.Database Integration & Optimization: Write and refine SQL queries for efficient data retrieval and management in the Oracle database.User Experience & Interface: Improve UI/UX for an intuitive and user-friendly experience tailored to the Tracker community.Collaboration & Security: Work with stakeholders to align the tool with project needs while ensuring compliance with CERN security policies.Troubleshooting & Documentation: Identify and resolve technical issues while maintaining clear, up-to-date documentation on workflows and best practices.Your profile
Skills
Proficiency in HTML, CSS, JavaScript, and experience with RESTful APIs.Strong skills in Python and Java.Expertise in Oracle Database and SQL, including complex query optimization.Experience with Git and version control.Problem-solving, troubleshooting, and effective communication in cross-functional teams.Preferred Qualifications
Familiarity with CMS Phase-2 Tracker or similar tracking systems.Experience optimizing large datasets.Knowledge of web security best practices.Spoken and written English, with commitment to learn French.Eligibility criteria:
You are a national of a CERN Member or Associate Member State.By the application deadline, you have a maximum of two years of professional experience since graduation in Bachelor of Technology (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.You have never had a CERN fellow or graduate contract before.Applicants without University degree are not eligible.Applicants with a PhD are not eligible.Job closing date: 18.04.2025 at 23:59 Hrs CET.
Contract duration: 8 months, with a possible extension up to 36 months maximum.
Working hours: 40 hours per week
Target start date: 01-June-2025
This position involves:
Work during nights, Sundays and official holidays.Residence in the immediate vicinity of the Organization's installations.Job reference: EP-CMX-ID-2025-60-GRAE
Field of work: Software Engineering and IT
What we offer
A monthly stipend ranging between 5196 and 5716 Swiss Francs (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: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.30 days of paid leave per year.On-the-job and formal training at CERN as well as in-house language courses for English and/or French.About us
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 http://home.cern.
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.