The European Space Agency (ESA) is offering an internship in the Mission Operations Department, Deep Space and External Services Section, based at the European Space Operations Centre (ESOC) in Darmstadt, Germany. You will join the team behind the Facility for Operations Experimentation (FOX) and choose between two hands-on topics: Digital Intermediate Frequency Interoperability (DIFI) or ground station interface harmonisation. Applications close on 30 November 2026, and the internship runs for 3 to 6 months from February 2027. At Youth Works Hub, we reviewed the full vacancy and the ESA internship announcement and gathered every topic, requirement and condition in one place.
Key Facts About the ESA Internship
📌 Position: Intern in the Mission Operations Department, Deep Space and External Services Section
🏛️ Organisation: European Space Agency (ESA)
🧭 Directorate: Operations
📍 Location: ESOC, Darmstadt, Germany
🆔 Job Requisition ID: 21089
🏷️ Type of Appointment: Intern
🗓️ Duration: 3 to 6 months
🚀 Start: From February 2027, with the exact start date agreed with your ESA tutor
⏳ Deadline: 30 November 2026, 23:59 CET/CEST
Meet the FOX Team at ESOC
You will directly contribute to the objectives of the Facility for Operations Experimentation (FOX), based at ESA's European Space Operations Centre (ESOC) in Darmstadt. FOX is an initiative designed to support:
🧪 Operational experimentation
✅ Technology validation
🛰️ In-orbit demonstration and validation (IOD/IOV)
🏅 Qualification activities
🔁 End-to-end operational assessment and experimentation support, for both traditional and New Space missions
Why FOX Exists
FOX facilitates experimentation, qualification, interoperability and operational validation activities that may be difficult to perform within purely operational service environments. Experimental applications, services and concepts can be tested and progressively adopted by mainstream missions. FOX also contributes to increased interoperability and operational readiness across the evolving New Space ecosystem.
Who Uses FOX
FOX supports ESA internal users as well as universities, research institutes and companies that prototype, test and validate innovative operations concepts and technologies. It does so by fostering innovation, experimentation and cross-functional collaboration in the domain of ground operations. Typical users range from:
🌌 Traditional space missions
📦 CubeSat and SmallSat manufacturers and operators
💻 Ground segment developers
📡 Ground station service providers
Your Role in the FOX Team
You will be part of the FOX team, gaining insight into operational challenges and contributing to the development of novel solutions for future mission support. You will be actively involved in ongoing experimental activities, including:
🛠️ System prototyping
🔬 Testing
🔗 Integration
📈 Performance evaluation
💬 Participating in regular technical discussions and collaborative reviews across disciplines
The internship gives you hands-on experience in a highly dynamic and interdisciplinary environment at the intersection of operations, engineering and research.
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Choose Your Topic
You can choose between two internship topics. Each one centres on a different part of the FOX ground segment environment.
Topic 1: DIFI Integration and Validation
The first topic is the integration and validation of Digital Intermediate Frequency Interoperability (DIFI) solutions. Activities include:
📻 Using Software Defined Radio (SDR) and digitizers/samplers, which are integrated, configured and validated within the FOX operational environment
🧩 Focusing on the implementation of DIFI to enable SDR interoperability using a generic DIFI-enabled sampler
🎛️ Learning how to configure and operate SDRs, especially regarding user-friendliness, sustainability and reliability
Topic 2: Harmonising Ground Station Interfaces and Protocols
The second topic is the harmonisation of ground station interfaces and protocols for enhanced interoperability. You will contribute to:
🔌 Integrating external systems that use different protocols into the centralised FOX ground segment environment
🧰 Tailoring and validating interfaces to improve interoperability for real-time telecommanding and telemetry reception, as well as tracking and scientific data downlink
🎯 Reaching the final goal of centralising services so that users can transparently adapt well-established standardised protocols without developing custom interfaces
🎓 Learning how mission users connect to ground stations, with a special focus on interoperability and its trade-offs in real operational environments
Education: Who Can Apply?
🎒 You must be a university student, preferably in your final or second-to-last year of a Master's level course
📝 You must be able to prove that you will be enrolled at your university for the entire duration of the internship
Technical Requirements
💡 Knowledge of Python or another relevant programming language
📶 A general understanding of Radio Frequency (RF) communication systems and signal processing
🏗️ A basic understanding of ground station operations
⭐ Familiarity with software defined radios and/or ground station protocols is an asset
Language Requirements
🗣️ The working languages of the Agency are English and French, and a good knowledge of one of these is required
➕ Knowledge of another ESA Member State language is an asset
Behavioural Competencies
ESA looks at its Core Behavioural Competencies for this role. The competencies listed in the vacancy are:
🎯 Result Orientation
⚙️ Operational Efficiency
🤝 Fostering Cooperation
👥 Relationship Management
🔄 Continuous Improvement
🔭 Forward Thinking
Which Nationalities Can Apply?
Applications are only considered from nationals of one of the following States: Austria, Belgium, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Applicants from Canada as a Cooperating State can apply as well as those from Bulgaria, Croatia and Malta as European Cooperating States (ECS).
Selection Process
🎤 During the interview, your motivation for applying to this role will be explored
🧮 During the recruitment process, the Agency may request applicants to undergo selection tests
Application Limits and Timing
According to the ESA announcement for the student internships opening for 2027:
2️⃣ A candidate can apply to a maximum of two internship vacancies
🕐 Internships last 3 to 6 months and start from February 2027, with the start date set together with your ESA tutor
📅 The vacancy closes on 30 November 2026 at 23:59 CET/CEST
Equal Opportunities at ESA
ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. It welcomes applications from all qualified candidates irrespective of gender, sexual orientation, ethnicity, religious beliefs, age, disability or other characteristics.
Support for Applicants With Disabilities
At the Agency, diversity is valued and people with disabilities are welcome. Whenever possible, ESA seeks to accommodate individuals with disabilities by providing the necessary support at the workplace. The Human Resources Department can also provide assistance during the recruitment process.
Important Information From ESA
The information published on ESA's careers website regarding internship conditions is correct at the time of publication. It is not intended to be exhaustive and may not address all questions you would have.
Find more internship opportunities like this one on Youth Works Hub.
Frequently Asked Questions
What does the ESA Mission Operations Intern do?
The intern joins the FOX team at ESOC and takes part in ongoing experimental activities such as system prototyping, testing, integration and performance evaluation. You also join regular technical discussions and collaborative reviews across disciplines.
Which topics can I choose from?
There are two topics. Topic 1 covers the integration and validation of Digital Intermediate Frequency Interoperability (DIFI) solutions using software defined radios and digitizers or samplers. Topic 2 covers the harmonisation of ground station interfaces and protocols for enhanced interoperability.
Where is the internship based?
The internship is based at ESA's European Space Operations Centre (ESOC) in Darmstadt, Germany, within the Operations Directorate.
How long is the internship and when does it start?
ESA internships last 3 to 6 months and start from February 2027. The exact start date is agreed with your ESA tutor.
Who is eligible to apply?
You must be a university student, preferably in your final or second-to-last year of a Master's level course, and you must be able to prove that you will be enrolled at your university for the entire duration of the internship. You must also be a national of one of the eligible states listed in the vacancy.
Which skills do I need?
You need knowledge of Python or another relevant programming language, a general understanding of Radio Frequency communication systems and signal processing, and a basic understanding of ground station operations. Familiarity with software defined radios and/or ground station protocols is an asset.
Which languages do I need?
The working languages of ESA are English and French, and a good knowledge of one of them is required. Knowledge of another ESA Member State language is an asset.
Can I apply to more than one ESA internship?
Yes, but a candidate can apply to a maximum of two internship vacancies.
How will I be selected?
ESA may request applicants to undergo selection tests, and your motivation for applying to the role will be explored during the interview.
Can Canadian, Bulgarian, Croatian and Maltese students apply?
Yes. Applicants from Canada as a Cooperating State and from Bulgaria, Croatia and Malta as European Cooperating States (ECS) can apply as well.
Deadline
⏳ 30 November 2026
Links
🔗 Vacancy and application (Apply now): https://jobs.esa.int/job/Darmstadt-Intern-in-the-Mission-Operations-Department-Deep-Space-and-External-Services-Section/1452801633/
🚀 ESA student internships 2027 announcement: https://www.esa.int/About_Us/Careers_at_ESA/ESA_Student_Internships_2027_are_now_open
🛰️ Facility for Operations Experimentation (FOX): https://www.esa.int/Enabling_Support/Operations/Facility_for_Operations_Experimentation_FOX
🌐 ESA website: http://www.esa.int
📧 Student internships contact (support for applicants with disabilities): ESA.Student.Internships@esa.int
