With over 2.100 employees worldwide, the CS Group is a leading IT company in France and in Germany, and a prime contractor in designing, integrating and operating mission critical systems.
It has now been over 30 years that comprehensive CS Group solutions for space systems and applications, both on the ground and in space, have been part and parcel of this odyssey. Our German activities are growing at a fast pace and to face our customers high level expectations and needs, we are looking for talented profiles with relevant experience in Space systems and applications.

Start date: 1st February 2023

Deadline to apply: 30th November 2022

You will join our Flight Dynamics team supporting our customer ESA/ESOC. The ESOC Flight Dynamics division provides mission analysis and flight dynamics operations support to ESA and third-party missions during all mission phases.

Flight Dynamics cooperates with different elements of the ground segment, such as the flight control teams, ground operations teams, science teams, the project teams, and the spacecraft manufacturers. More specifically, you will primarily support the Flight Dynamics operations for the Sentinel missions of the EU Copernicus programme. The dedicated Copernicus Flight Dynamics team is responsible for the flying missions of Sentinel-1A/B, Sentinel-2A/B and Sentinel-5p, as well as for the launch campaigns of their successor missions and of Sentinel-3 and Sentinel-6. Besides the multi-mission support, the position offers a diversified working field due to the widespread responsibilities of each team member and various interfaces inside and outside the team. As the sole working language is English, fluency in English is essential. We are looking for someone at the start of their career, but any experience with Flight Dynamics operations and Earth observation missions is an asset.

Finally, a strong programming background is an advantage

Tasks & Responsibilities
You will join a team responsible for the following tasks (but not limited to):

• Orbit determination and maneuver optimization
• Attitude determination and on-board systems monitoring and verification
• AOCS command generation
• AOCS and optical sensors calibration
• Test & Validation for the above
• Performing studies and technical analyses to support the above
• Performing software development and maintenance to support the above

Covering:

• Routine mission operations
• Pre-launch activities, e.g. software development and testing, procedure writing, technical analyses, support to test and simulation campaigns
• Support during critical mission phases, e.g. launch and commissioning, end of mission activities
• Support of collision avoidance manoeuvres (with space debris) including on-call service
• Maintenance and evolution of the Flight Dynamics system

Mandatory skills:

• University degree in a relevant engineering field, mathematics, or physics
• Very good skills in classical mechanics, including:

1. Kinematics and dynamics of point masses
2. Dynamics of rigid bodies
3. Dynamics expressed in non-inertial reference frames, e.g. including dynamics in rotating frames, rotation dynamics expressed in body fixed frame,
4. Conservation laws in mechanics
5. Gravitational forces and field
6. Orbit dynamics, Keplerian orbits and Kepler laws

• Very good skills in linear algebra and being familiar with different representations of rotation in 3D
• Good skills in calculus in one or several variables; good skills in numerical methods; ability to solve mechanics problems via analytical mechanics methods is an asset
• Competence to apply their knowledge to develop solutions for technical (mathematical and dynamical) problems
• Ability to define, implement, validate, and operate software which applies the above solutions 
• Using e.g., Unix and/or Linux scripting languages, Fortran 77 and/or 95, Python, C/C++                                                                                              
• Fluency in English, both in speech and writing
• Good team-worker and will to take operational responsibility in a multi-discipline team
• Ability to work independently, and high motivation to learn
• Ability to multi-task efficiently; working on multiple activities, multiple subsystems, and multiple missions simultaneously

Additional skills (which will be considered as asset):

• Experience with Earth observation satellites, Flight Dynamics operations and/or Flight Dynamics software coding
• Experience in working on a Unix or Linux based operating system
• Experience in software coding with Fortran (77 or 95), Python and C/C++
• Experience in interacting with other teams and other fields
• French language skills

Our offer:

• Challenging tasks and responsibilities in an interesting, multi-national working environment
• Efficient support and training to enable a smooth and quick integration into the operational team
• Attractive relocation package and employment conditions
• Constant support in relocation and integration to a potentially new country and a new working environment.
• Be part of one of the most innovative companies in the astrodynamics field