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Intern Abroad

Kategorie: ‘Research’

My Research Stay at UC Berkeley

August 28th, 2025 | by
  • PhD Candidate for Electrical Engineering
  • USA, Berkeley
  • University of California, Berkeley
  • 05/2025-08/2025

  1. Preparation and organization of the stay:

I am currently in my final year of my PhD at the Center for Ageing, Reliability and Lifetime Prediction for Power Electronics and Electrochemical Systems (CARL), RWTH Aachen, where I work on analyzing the aging mechanisms of batteries using experimental and simulation-based data. Battery research is highly interdisciplinary, combining knowledge of electrochemical processes, experimental setups, engineering, and data analysis. Spending part of my research abroad had always been very important to me, as it offered the chance to gain new perspectives and access complementing expertise for my research. The energy, controls, and applications lab (eCAL) at UC Berkeley, with its expertise in algorithms, lifetime analysis, and data-driven methods, complemented my background and offered the expertise I needed for my analyses. To prepare for my time there, I organized the battery aging measurements I had started at RWTH Aachen so that they could be analyzed once I arrived at the lab. A professor at my institute from RWTH Aachen put me in contact with my host supervisor.

Organizing the logistics of a research stay in the US can be challenging. Finding accommodation in Berkeley on short notice was not easy, so I opted for an Airbnb, while shared apartments or nearby cities like Oakland offered more affordable alternatives.

  1. First steps after arrival in host country:

By chance, my first day at UC Berkeley coincided with the annual eCAL retreat, where we went lawn bowling and had dinner afterward. It turned out to be the perfect way to meet the whole group in a relaxed setting and to get to know the PhD students right away. Everyone was very welcoming, and a few of them gave me a tour of the lab. I also met my host professor in person that day, which made it easy to settle in and feel like I could start my research stay right away.

Campus of UC Berkeley
©Katharina Quade

  1. Academic experience:

eCAL had the feel of a close-knit group: about ten PhD students worked under the supervision of my host professor, supported by a handful of bachelor’s and master’s students. The culture and PhD process at UC Berkeley was noticeably different from what I was used to in Germany. At RWTH Aachen, PhD students often supervise theses and work closely with student assistants, whereas in Berkeley the emphasis was much more on individual projects and dissertation work without relying on large infrastructure and equipment. This meant fewer administrative and organizational duties for the PhD students at UC Berkeley, allowing researchers to focus deeply on their own topics. Each environment had its own strengths and weaknesses, and this exchange gave me the opportunity to integrate the strengths of the US PhD system into my work at RWTH Aachen.

The lab’s relatively small size made it easy to settle in and even though the students were spread across different campus buildings, communication was open and effortless. eCAL was also highly international, with students from a wide variety of cultural backgrounds. This diversity enriched our exchanges, blending technical discussions with cultural perspectives and insights into PhD programs.

  1. Financing:

The cost of living in the US, especially in the Bay Area, is quite high, covering groceries, leisure activities, and daily expenses. Fortunately, I lived close to a Trader Joe’s, which offered relatively affordable groceries. Getting to San Francisco on the weekends was very convenient thanks to the BART train, while within the city, buses and the metro were the main public transport options. For trips outside the Bay Area, having a car is essential. Renting a car in the US is comparatively affordable, but it requires a credit card.

  1. The Golden Gate Bridge on a sunny day. San Francisco is just about 30 minutes away from Berkeley by train.
    ©Katharina Quade

    Leisure:

Berkeley itself is a relatively small city in the East Bay, and since my stay took place during the summer semester, both the campus and the city were fairly quiet. Overall, I really enjoyed Berkeley and San Francisco as the area has a lot to offer, both culturally and culinarily. I visited Alcatraz, explored several exhibitions, and had excellent food in Chinatown and Little Italy. One thing to keep in mind, though, is the microclimates in the bay area: it can quickly turn cold, windy, or foggy.

California’s landscapes are incredibly diverse, and it is the US state with the most national parks. Many of them are accessible from the bay area, though usually a car is necessary. During my stay, I was able to visit Yosemite, Sequoia, Redwood, and Death Valley National Parks, each was impressive in its own way. I was particularly fascinated by how different the scenery can be within a single state: from the forests of Redwoods and Sequoias to the dry, hot desert landscapes of Death Valley.

  1. What added value did the stay have for my career prospects?

My research stay abroad was an important step for my professional development. It allowed me to work in an international research environment and gain insights into different academic cultures and PhD systems. I strengthened my expertise in advanced battery data analysis and honed my ability to work in interdisciplinary, multicultural teams. Global issues like climate change can only be addressed collectively, and this experience highlighted how much progress depends on collaboration across borders and disciplines.

  1. To what extent does my stay abroad have a sustainable character?

My stay abroad had a lasting impact in several ways. Beyond my own research, I built professional connections with professors, startups, and companies at UC Berkeley, creating opportunities for future collaboration. Networking is crucial in academia, and I am confident these contacts will remain valuable. I am still in touch with several PhD students and look forward to meeting them again in the future.

  1. Conclusion:

My time in California was definitely both professionally and personally rewarding. Engaging with students from diverse countries brought new perspectives to my work and daily life. Most importantly, the stay allowed me to focus and collaborate intensively on my research, which was crucial for successfully completing my PhD and ultimately deepened my passion for science and research.

My experiences at Volvo Technology

July 3rd, 2025 | by
  • Energy Engineering M.Sc.
  • Sweden, Göteborg
  • Volvo Technology
  • 10/2024 – 05/2025

Masthugget Church Viewpoint East ©Marc Müllenbach

Hello, my name is Marc. I am a German studying Master Energy Engineering at RWTH Aachen University, Germany, and participated in a research stay funded by the Erasmus+ Internship program during my master’s thesis at Volvo Technology – one of the most Swedish companies imaginable – in the second largest city Göteborg, Sweden. Getting this opportunity, to work on practical research in a company, was very difficult and almost did not work out. I started applying more than a year ahead, but this was way too early for most cases. In Sweden, there are no mandatory internships of up to 6 months; Swedish students gain practical experience during their summer break. Yes, you heard right: all students have a 2-3 month study-free period during the summer, without the need to prepare for exams, since they finish them before Midsommar (the summer solstice). Their internship culture comes from the fact that students do not receive their student funding during vacation, so many rely on summer jobs to survive financially until the next study period. Because internships are limited to these three months, companies don’t know about longer internships, especially not outside this period, as is common in Germany. Another aspect is that thesis work usually starts in January, as Swedish studies are separated into four periods, and are mainly carried out in groups of two—eliminating most chances if you want to start according to the German semester dates and alone. However, you would not be reading this if I hadn’t made it despite the low chances. I applied a lot, sent unsolicited applications to companies, connected with people on LinkedIn, and sent dozens of requests for an internship with the opportunity to follow up with a master’s thesis, which is usually the catch in Germany. The position was acquired via an unsolicited application to an industrial PhD student in cooperation between Chalmers University of Technology and Volvo Group, which led to the position at Volvo Technology. Other research internships would have been possible at Chalmers, but the research topic and work environment at Volvo were the best option.

Moat of the old city fortifications, Bazarbron ©Marc Müllenbach

Finding a suitable accommodation without being registered as a Swedish student brings further problems, since you are not eligible for student accommodations. Some shared living opportunities always exist but are highly requested and not available in sufficient quantity. Some international students even live in hotels or cabins for the first year. In Swedish metropolitan areas, housing agencies require you to be in the queue for several years. Even colleagues at my workplace, who were in the queue for up to three years, were not able to find suitable accommodation (for their living standard) and ended up buying instead. I found mine with a lot of luck on Facebook (which is widely used in Scandinavia and also serves as an online marketplace and for international exchange). The accommodation had two rooms, one bedroom, and one living room/kitchen. The monthly costs were approximately €450 per person, with all additional costs included. I lived there with my girlfriend, who also studied at Göteborg University. For grocery shopping, I highly recommend using “Too Good To Go,” which offers a full bag of vegetables close to expiration for under €5—this saves money since vegetables and fruits are noticeably more expensive compared to Germany. Monthly expenses for groceries were roughly €200 per person, including all food and household costs and eating out every two weeks. Since the canteen at Chalmers was €6 (student) or €8 (visitor), and at Volvo Group €10, I decided to always prepare my own food, which is popular in Sweden. There are always spaces with microwaves and cutlery. For transportation, you can use rental bikes for €30 per year (Nextbike/Sty&Ställ). Since I needed to get to the other side of the harbor to Göteborg Lundby, I bought a tram ticket, which was €60 (student) or €75 (non-student) per month. Even though I was a student, I couldn’t use the student discount for many occasions, since in Sweden your student status is verified by a “Mecenat” app account issued by a Swedish university, which I did not have.

Volvo Group, Gropegårdsgatan 10 ©Marc Müllenbach

Everyday life during the research stay was a 40-hour workweek, starting at 9:00 and ending at 17:00. It is common to have a one-hour lunch break at 11:00, which I always spent with coworkers. Since I started in October, I was the only student at the company until January, when two other thesis workers joined, as is usual during this time. From Volvo, I received a laptop for my research work, which was mainly self-guided and supervised by weekly meetings with my supervisor. I highly enjoyed short coffee breaks with colleagues around 14:00-15:00, called “fika,” to discuss technical topics or daily life. There was one 30-minute fixed slot per week where the whole department met, and one colleague always brought sweet pastries or cake. The department worked great as a team, and I think this weekly contact, as well as spontaneous meetings on other days, helps with teambuilding. I also enjoyed that Volvo Group is an international environment, and you can get into contact with everyone on a casual basis since in Sweden you always call people by their first name; titles and positions do not mainly define your personality.

Vrångö Island ©Marc Müllenbach

During the winter, I came home from work when it was already dark, but there are many options available. Monthly sports membership at “Fysiken” cost €33 per month (3-month period) for students, including gym, courses, team play, and climbing/bouldering. I used to go every second day and made friends during climbing and basketball. It seems much easier to make international friends, as Swedish students usually already have their friend groups. Getting into those groups takes time and is comparable to making friends in Germany. With friends found that way, at the company or through international university programs such as ESN, you will definitely find people to spend time with—though more likely internationals who will leave after six months. However, Göteborg is a city where you can spend your time at many places, such as bars with after-work discounts and pub quizzes, museums, or at the ice hockey arena watching “Frölunda HC.” Around February, you will get home when it is still bright outside and can spend the sunset at famous places such as “Skansen Kronan.” On weekends, I recommend visiting the local historical
amusement park “Liseberg,” the islands in the archipelago near Gothenburg, one of the beaches, or hiking around lakes such as “Delsjön.” Trips around Sweden to Stockholm, Malmö, Helsingborg, or even Oslo in Norway are easy to do on a small budget. ESN also offered a one-week trip to Swedish Lapland, which everyone recommended to me, but I was quite
occupied by research work and also took vacation to visit my family over Christmas.

In conclusion, I liked Swedish culture before, and this trip increased its attraction. Sometimes it was tough to receive the same rights as locals, since you always need digital proof such as Swedish student status (“Mecenat”). For foreigners, it is also impossible to buy at a local food market or farm since “Swish,” the Swedish version of PayPal for payment, requires a Coordination Number for a Swedish ID, a Swedish bank account, and BankID. There are also several special days with traditions such as St. Lucia around Christmas, Valborg/Walpurgis Night and Swedish National Day in spring, and Midsommar in summer. However, my girlfriend and I decided to continue our time in Sweden and enjoy one or more summers at the coast and in nature, where Sweden has much to offer.

My Research Stay at the University of South Carolina Upstate

December 12th, 2024 | by
  • PhD Candidate in Business Economics
  • USA, South Carolina
  • University of South Carolina Upstate
  • 09/2024 – 11/2024

Preparation

I had been a PhD student at RWTH Aachen for a few years and working abroad had always been something I’d like to do. As part of my research, last year I had the opportunity to start collaborating with a professor from the University of South Carolina Upstate. When I asked for the possibility to visit the US and work together from there, she was on board immediately. So, the planning began…

Planning a trip to the United States is definitely an administrative task, and I quickly realized that I had to take it step by step. After settling on a rough timeframe with my PhD supervisor and my hosting professor, I contacted the travel department of the university and booked my flights to and from the US. Talking to colleagues who had already been abroad and looking up to-do lists online was very helpful to figure out what steps to take, e.g. requesting a letter of confirmation from the host university or getting an international license. I started the organization process half a year before my stay, which was a convenient timeframe to organize everything.

 

Main building of the University of South Carolina Upstate. ©Maren Paegert

Accommodation & Living Expenses:

Living expenses in the US are higher than in Germany, especially food prices. Eating out will cost around $ 20-30 for one meal. Grocery prices can be two to three times as expensive as in Germany, even for things like bread, a package of cheese, or some chocolate. This is just something to know and budget for. For my stay, I applied for and got granted the RWTH Aachen Research Ambassador Scholarship, which helped in covering some of those expenses.

As for my accommodation, I ended up booking an apartment in a complex which was specialized in short-term leases for extended business stays. I would recommend to book directly over the apartment’s website, since I experienced a cancellation several days after booking over a third-party platform. Other good options for a stay in the US are Apps such as Airbnb. In my case, there was no student housing available, but that would be another option in general.

 

College of Business and Economics. ©Maren Paegert

Everyday Life and Research Stay

I had my own office at the guest university and was able to experience everyday working life in the United States. Overall, working as Academic staff in the US is quite similar to Germany in many ways, with some cultural differences.

Also, I stayed in one of the Southern States of the US, and Southern hospitality is something I definitely experienced! Everyone was very friendly, open and attentive, which I enjoyed a lot. The professor I worked with was a great host, and I quickly met some amazing colleagues. The area offered a lot of places to explore, and I enjoyed walks in the park, going out for meals, shopping, the cinema, going to the gym, and running. One of my favorite experiences is that I was able to give my own lecture at the university and get into contact with many very curious students.

Another highlight was the last week of my stay, when we attended a conference in Virginia and I presented our research there. Overall, meeting an international community and collaborating was a very rewarding experience.

 

Conclusion

I can highly recommend to work or study abroad for a while. If that has been on your bucket list for some time, like in my case, be proactive and just do it!

Doing a Research Internship at the UiT in Norway

November 18th, 2024 | by
  • Psychology M.Sc.
  • Norway, Tromsø
  • University of Tromsø – The Arctic University of Norway
  • 04/2024 – 08/2024

Going abroad the second time in my life posed a challenge, yes, but a less intense one than being a volunteer in South Africa after finishing school. Hence, the whole stay (planning included) was easy going and associated with anticipation and the joy of revisiting the most beautiful country in the world.

Starting my master program at RWTH in winter 23/24, I already had everything laid out. As I wanted to go abroad during my second master semester, I started thinking about research internship possibilities when I finished my bachelor’s degree in March 2023. As my bachelor thesis supervisor was on a one-month exchange in Tromsø and spoke very highly of one professor at the UiT (The Arctic University of Norway), I asked her for connecting me to her. She did, and fortunately the professor at the UiT invited me to come to Norway and work as a research intern for her. This turned out to be the start of a fruitful, respectful and somehow deep supervisor-intern relationship. She is a very capable, very humorous and very kind person. Next to living in the far north (with its midnight sun, polar lights and spectacular hikes), she was my highlight during my whole stay.

Norway is an expensive country. Nevertheless, the German inflation made the transition rather easy. Groceries can be affordable if you know which grocery store to visit and which products to buy. My rent was a different story: For a single room in a shared flat (of eight people) in a student housing I paid 410€. This is the same amount I pay in Germany for my student apartment. On the good side, Norwegian flat mates are the most quiet and respectful people I have ever met, hence, living with eight people was pleasant.

I have adapted my lifestyle drastically. While in Germany I used to meet friends at a café or a restaurant, in Norway I never ate out. I did not party at all, as alcohol is luxurious here, and cut back on my shopping expenses. Although it seems bad, it was a refreshing and grounding experience and let me think about what I take for granted in everyday life.

During the internship I was extremely high in autonomy. My supervisor and I met every Monday noon to talk about new tasks and projects. Next to this, I was flexible regarding my working hours, working place (I switched between the institute, the UiT library and the public library in the city center) and working pace. After work, I either hit the gym or went home to play the piano. My piano teacher and I kept doing lessons via FaceTime. Taking my hobbies from Germany with me helped a lot, especially during the first few weeks, to find my rhythm.

The biggest and most meaningful project during the internship was being a co-author in a review paper we submitted to the Journal of Business & Psychology. It took us from May to August to get the data, analyze them and write the manuscript. Hopefully, the manuscript will undergo a brief review process and will be published at some point. Next to the review paper, I got a lot of insights in the publishing process and data analysis. Furthermore, I could get creative while designing a scientific poster and developing new lecture materials.

The best thing to do while in Norway is hiking. It is for free. And please, just look at the photos:

© Charlotte Hopp

 

If it is raining, I enjoyed reading a lot. And that have been my last five months: Hiking, exercising, reading, baking. My family visited for two weeks, in which we went on a road trip to the Lofoten and Vesteralen islands. This vacation I will remember dearly. Of course, friends of mine visited now and then – this was a welcome disruption from everyday life. But I must admit that nowadays it is easy to stay in touch. Being 3000km away from Aachen, I learnt that deepening friendships and fostering my relationship can sometimes be easier even when apart.

I am writing this report one day prior to leaving Norway. It has been a wonderful time, helping me finding an answer to the one question that made me consider a research internship in the first place: “Do I want to do a PhD?” My answer: “Yes, but not abroad!” Additionally, I would like to say a big thank you to the Erasmus office that made my whole stay possible. Thanks for your support, organizing everything neatlessly and being reliable throughout the whole stay.