Internship – Automation of the validation process for water quality
Job description
BACKGROUND
Magellium's Earth Observation Unit is structured into five thematic clusters, one of which is dedicated to measurement physics and applications. One group works specifically on parameters used to assess water quality (surface temperature, chlorophyll-a concentration, transparency, etc.) in lakes, lagoons, and coastal waters. The team works on the entire operational chain, from the development of atmospheric correction algorithms and the determination of water quality parameters to product validation and dissemination via a web platform. The aim is to make the data usable by scientists and environmental managers with a wide range of technical expertise and thematic applications.
The validation phase is essential to ensure the accuracy of the results obtained. This step involves comparing the values calculated from satellite acquisitions with field values, known as in situ values, to assess any discrepancies. To be reliable, the comparison must be carried out on bodies of water with varied characteristics and on many different dates. However, several difficulties arise when attempting to increase the density of comparisons: simultaneity of measurements, depth, presence of clouds on satellite images, etc. Validation is both crucial and complex to implement and requires the management of databases derived from in situ measurements. Finally, this validation step must be automated in order to enable the analysis of the performance of algorithms under development before they are put into operational production.
The objective of this internship is to implement an ergonomic validation tool to inform users about data quality and to upgrade the processing chain.
SUBJECT
The subject of this internship is to devise, develop, and automate a validation process using in situ data.
Currently, team members each use their own code for validation, and the on-site databases are not standardized. The goal is therefore to create a common tool for validation. This tool would be hosted on CNES infrastructure and would run automatically each time the algorithms are modified to validate or reject the changes and generate a validation report.
The internship will focus on three main aspects:
- Validation: Learning how to use processing algorithms and validation processes for data obtained from satellite imagery, understanding evaluation metrics, analyzing issues according to parameters, presenting expected results.
- On-site databases: Retrieval and management of on-site databases, cleaning and manipulation of these databases, analysis of the advantages and disadvantages of the various databases available, selection of a representative sample of data.
- Automation: Implementation of the code on the CNES shared infrastructure so that it can be used by all team members and its use in the continuous integration of algorithms developed by the team.
While the internship includes a scientific component focused on understanding water quality parameters, it also includes a significant development component to create a shared tool accessible on a CNES platform.
Depending on the intern's interests and progress, the internship may also focus more on one of these aspects. Depending on the schedule, the intern may participate in field missions to collect data in situ. The work will be done in Python, using expert tools available in the Magellium ecosystem.
PERSPECTIVE
Following this internship, a permanent position may be offered.
Profile required
You are a student enrolled in a university or engineering school program, pursuing a master's degree in data processing, ideally with a specialization in remote sensing. You are interested and motivated to work in the field of Earth observation.
At Magellium, diversity and inclusion are fundamental to our operations and rooted in our values. We respect the diversity of our employees, their experiences, backgrounds and disabilities, and offer equal opportunities to all. All different, all competent!
Keywords: Earth observation, remote sensing, automation, water quality, data processing, in situ data, automation
Computer keywords: Python
About us
Magellium Artal Group has over 26 years' experience in data engineering, imaging and IT technologies. We use innovation and know-how to meet our customers' needs, even the most specific and complex. As an active player in our ecosystem, we advocate strong, meaningful values and give priority to achievable commitments and concrete actions.
Choose a friendly, dynamic company
Stimulating projects
Climate, hydrology, defence, software development... the projects are meaningful, numerous and diverse!
A human-centred company
We advocate local management, autonomy in work and ease of communication.
Are you looking for a career?
At Magelllium Artal Group, we aim to share our knowledge, learn from others and develop everyone’ skills.
A company of engineers for engineers
At Magellium Artal Group, you'll find trained engineers... even in the management offices!
Benefits in the plural!
Our Works Committee is constantly working to introduce new benefits to make our employees feel recognised and valued. In addition to paying 50% of public transport fares, we offer luncheon vouchers, a profit-sharing bonus, vacation bonuses, numerous partnerships with gyms, discounts with many companies, discounts on in-house activities, and more.
Work-life balance
The well-being of our employees is a priority, and this is reflected in our flexible working arrangements. That's why we offer RTT and up to 2 days of remote work per week.
Dynamic corporate life
Afterworks, karaoke nights and blind tests are just some of the events we regularly organise!
Sports and music rooms!
Our premises include a gym and multi-activity room (yoga, massage, pilates), a music room and a games room with table soccer, Nintendo Switch and Xbox for relaxing lunch breaks.
Magellium Artal Group is committed to contributing to social and environmental issues
As part of its strategic orientations, we wanted to define areas of improvement for the implementation of responsible governance in line with the challenges of sustainable development and the role of employees in the company.
89/100
Gender equality index in 2023
79kg of CO2*
saved in 2023 *according to Easytri
Over 350 projects
We have contributed and continue to contribute to numerous French, European and international projects. See our dedicated page for a non-exhaustive list of projects in which we have participated or are currently participating.
Similar offers
- Others, IT Developer, Earth Observation
- Climate & Hydrology, Space
- + 5 years, 1 to 5 years experience
- Permanent contract
- Ramonville-St-Agne
- Software Architect, IT Developer
- Space
- + 5 years
- Permanent contract
- Ramonville-St-Agne
- Project Manager, Earth Observation
- Space
- + 5 years
- Permanent contract
- Ramonville-St-Agne
Frequently Asked Questions
Do you hire trainees?
Yes, we hire end-of-study internships. These internships can then develop into permanent contracts (50% of internships transformed into permanent contracts by 2023).
Do you take on work-study students?
We can take on work-study students subject to availability of places and the company/school rhythm, as some projects are not always compatible with a work-study rhythm.
What is the recruitment process at Magellium Artal Group?
The process is fast! We first contact you for an initial discussion with the HR department by telephone or, ideally, on site at our premises. This allows you to immerse yourself in the company and discuss our vision, our values and the job's missions. Then, depending on the nature of the position, we propose a technical discussion with the project manager or the manager of the unit to which you will be assigned. We make sure that each exchange is as natural as possible to put you in the best possible conditions. If there is a specific arrangement to be made for your situation, please let us know!
How do I apply for a job at Magelium Artal Group?
You can apply for our vacancies directly on our website www.magellium.com in the Join us tab.
What documents should I include in my application?
Your application must include a maximum 3-page CV. Little bonus: be creative and original in your presentation! (video, infographics for example).
How long does it take to receive a response to an application?
We respond to applications within 3 days on average.
Any maintenance tips?
Be yourself! At Magellium Artal Group, we believe in a friendly, relaxed working environment. So come as you are, and don't hesitate to ask us questions!
How long is the trial period for an engineer?
The trial period is 4 months. This period may be renewed in certain situations, but not systematically.
Will I be provided with a work computer?
Yes, when you arrive you'll be provided with a workstation complete with monitor, PC, keyboard and mouse. Office supplies will also be at your disposal.
Is remote work possible?
Our company agreement provides for the possibility of remote work up to 2 days a week. Remote working is possible as soon as the trial period has been validated and provided the project allows it (for example, this is not the case for defense projects for reasons of confidentiality).
How do I get to Magellium Artal Group's premises?
Our Toulouse and Courbevoie sites are accessible by public transport (metro and/or streetcar).
What are the company's commitments in the fight against climate change?
At Magellium Artal Group, we are committed to the fight against climate change through various actions.
We raise our awareness of ecogestures, such as switching off equipment, using cups instead of plastic ones, and sorting waste. We organize concrete actions such as challenges during sustainable development week.
When it comes to digital technology, for example, we apply responsible practices to our IT equipment and systems. In 2023, six employees received training in eco-design.
We also promote environmentally-friendly transport and offer bicycle mileage allowances. As a result, 20% of our employees come by bike and 25% use public transport.
If you would like to find out more about our CSR policy, ➡️ visit our dedicated page !
What are your social and financial benefits?
We offer a wide range of benefits to our employees: in addition to a 50% public transport pass, we offer luncheon vouchers, profit-sharing bonuses, vacation bonuses, mileage allowance for bicycles, a dynamic working environment and much more!
Do you organise activities between co-workers at Magellium Artal Group?
Yes, our Social and Economic Committee (ESC) regularly organises activities for colleagues. From escape games to music evenings and Mario Kart tournaments, you'll find plenty of opportunities to meet your colleagues and strengthen ties!
