Curious about how software drives real-world systems like power plants and global electricity markets? As a Software Engineering Intern at SF, you’ll work alongside experienced developers building the platforms that power our algorithmic trading and control hundreds of energy assets. We build everything in-house, for ourselves, which means we move fast, stay focused, and give interns a real chance to learn and contribute.
What would you work on?
- Write and test code for our high-performance, low-latency trading software using Kotlin.
- Learn to build fast, reliable software.
- Get hands-on with multithreading and software optimization techniques.
- Pair with experienced engineers to understand best coding and development practices.
- Take on small projects with direct impact.
What makes you a great candidate?
- Currently pursuing a degree in Computer Science, Mathematics, Physics, or a related field.
- Comfortable coding in any C-family language (Kotlin, Java, C/C++ or C#).
- Good problem-solving skills and understanding of basic CS concepts, including algorithms and data structures.
- Eager to learn and ask questions.
- You are full of ideas and enjoy discussing them with others.
- Fully available onsite in the Summer of 2027 in Prague location.
What do we offer?
- Mentors who are absolute experts in what they do.
- Personalised guidance and support throughout the program.
- Real-world projects.
- A culture of intellectual curiosity in a collaborative environment.
- Brand new office in Prague city center – Masaryčka.
- High-end workstation.
- Sponsored lunch in the office. Every workday.
- Free snacks at the office.
- The opportunity to impress us now and earn your spot on the team after graduation!
Skills Required
- Currently pursuing a degree in Computer Science, Mathematics, Physics, or a related field
- Comfortable coding in a C-family language such as Kotlin, Java, C, C++, or C#
- Understanding of basic computer science concepts, including algorithms and data structures
- Good problem-solving skills
- Fully available onsite in Prague during summer 2027
What We Do
Second Foundation is a tech company active in energy markets. A young company based in Prague that quickly grew into an international player in the modern energy sector, focusing on electricity trading, renewable energy production, battery storage, and flexible asset management. We operate at 25 markets from USA to Japan. With innovative proprietary technology and advanced trading algorithms, we are committed to maximizing the value of renewable energies while supporting the energy transition








