At a Glance
- Tasks: Join our R&D team to work on quantum computing and AI projects.
- Company: JIJ Inc., a deep-tech company focused on advanced optimization and quantum technologies.
- Benefits: Gain hands-on experience, learn from experts, and explore future career pathways.
- Other info: Flexible remote/hybrid working arrangements and part-time options available.
- Why this job: Make a real impact by solving complex industrial challenges with cutting-edge technology.
- Qualifications: Pursuing or completed a Ph.D. in relevant fields; strong programming skills required.
The predicted salary is between 20000 - 30000 € per year.
About the Internship Opportunity
As JIJ continues to expand its global R&D activities, we are looking for talented and highly motivated interns to join our research and development team. Our internship opportunities are designed for students and early-career researchers who are passionate about mathematical optimization, quantum computing, quantum-inspired algorithms, AI, and high-performance software development.
Internship projects are typically research- or product-driven and may involve collaboration with academic partners, industrial clients, or internal engineering teams. Depending on the project, interns may contribute to algorithm design, optimization modeling, solver development, quantum-classical hybrid workflows, benchmarking, software prototyping, or applied R&D for real-world industrial problems.
We welcome candidates with strong backgrounds in areas such as computer science, mathematics, physics, operations research, machine learning, or quantum information science. Ideal candidates are currently pursuing, or have recently completed, a master’s degree or Ph.D., although exceptional undergraduate candidates with relevant experience may also be considered.
JIJ offers internship opportunities throughout the year on a project-by-project basis. By registering your interest, you may be considered for future internship openings that match your skills, interests, and availability.
Period / Commitment
- Internship duration: Flexible and project-dependent. As a general reference, internships are expected to last approximately 8 weeks, with the possibility of longer-term arrangements depending on project requirements and candidate availability.
- Start date: Flexible and agreed on a project-by-project basis.
- Working arrangement: Remote or hybrid working may be considered, depending on the role, project needs, and team requirements.
- Time commitment: Part-time arrangements are available, typically around 3 days per week, with flexibility based on the candidate’s academic schedule and project needs.
Eligibility & Requirements
We welcome candidates with strong technical backgrounds and a clear interest in JIJ’s global R&D activities. Exact requirements may vary depending on the project, but suitable candidates typically have:
- Currently pursuing, or recently completed, a Ph.D. in a relevant field such as computer science, mathematics, physics, operations research, quantum information, machine learning, or engineering.
- Strong programming skills, particularly in Python; experience with scientific computing, optimization libraries, or machine learning frameworks is desirable.
- Research interest or experience in mathematical optimization, quantum computing, quantum-inspired algorithms, AI, or high-performance computing.
- Ability to read technical documentation and research papers, then implement, test, and validate ideas in code.
- Strong analytical, communication, and problem-solving skills.
- Working language: English for global R&D projects; Japanese language skills may be helpful for some projects but are not required unless specified.
Selection Process
We aim to complete the selection process within approximately one month, depending on candidate availability and project requirements.
- Online company information session — where applicable
- Technical assignment — typically completed within 1 week
- Technical interview — focused on technical background, project fit, and motivation
- Final decision and onboarding — with the aim of finalising the process within one month
What is in it for you?
At JIJ, you will have the opportunity to work alongside a highly skilled global R&D team at the intersection of mathematical optimization, quantum computing, AI, and industrial software development. You will contribute to technically challenging projects with real-world impact, gaining hands-on experience in developing advanced computational technologies for sectors such as energy, logistics, manufacturing, telecommunications, and finance.
As an intern, you will be able to:
- Work on cutting-edge R&D projects in optimization, quantum computing, and AI.
- Learn from experienced researchers, engineers, and domain experts.
- Contribute to practical solutions for real industrial and scientific challenges.
- Gain experience with advanced optimization platforms, solvers, and software tools.
- Build a strong foundation for a future career in deep tech, quantum technologies, or applied research.
- Collaborate in an international and interdisciplinary environment.
- Explore potential pathways toward future full-time roles within JIJ.
This is an opportunity to apply your technical knowledge to meaningful problems and grow as part of a team committed to making complex society-scale challenges computable.
About JIJ
JIJ Inc. is a deep-tech company advancing mathematical optimization, quantum computing, and quantum-classical hybrid technologies to solve complex real-world decision-making problems. Guided by its mission, “Make Society Computable, Contributing to the Advancement of Humanity,” JIJ develops optimization technologies that help organizations transform complex industrial challenges into computable, actionable solutions.
Through its optimization platform JijZept, JIJ provides a product suite for mathematical optimization, supporting the development process from modeling and solving to visualization and analysis. JijZept includes tools such as JijZept AI, JijZept Solver, JijZept IDE, and JijZept SDK, enabling both experts and non-experts to build and deploy optimization workflows more efficiently.
At JIJ, we work at the intersection of advanced mathematics, software engineering, AI, and quantum technology. Our team collaborates with industry partners, research institutions, and technology leaders to bring next-generation optimization solutions into practical use across sectors such as energy, logistics, manufacturing, telecommunications, and transportation. We welcome talented researchers, engineers, and business professionals who are passionate about applying cutting-edge computational technologies to meaningful industrial and societal challenges.
Internship for Quantum Researcher in Summer 2026 - UK/Germany employer: JIJ
At JIJ, we pride ourselves on being an exceptional employer that fosters a collaborative and innovative work culture. Our interns will have the unique opportunity to engage in cutting-edge research projects alongside a global team of experts, gaining invaluable experience in quantum computing and AI while contributing to real-world solutions. With flexible working arrangements and a commitment to employee growth, JIJ is dedicated to nurturing the next generation of talent in deep tech and applied research.
StudySmarter Expert Advice🤫
We think this is how you could land Internship for Quantum Researcher in Summer 2026 - UK/Germany
✨Tip Number 1
Network like a pro! Reach out to professionals in the quantum computing and AI fields on LinkedIn or at events. A friendly chat can lead to opportunities you might not find on job boards.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those related to mathematical optimisation or quantum algorithms. This gives potential employers a taste of what you can do.
✨Tip Number 3
Prepare for interviews by brushing up on technical concepts and coding challenges. Practice explaining your thought process clearly, as communication is key in collaborative environments like JIJ.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team.
We think you need these skills to ace Internship for Quantum Researcher in Summer 2026 - UK/Germany
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for quantum computing and mathematical optimisation shine through. We want to see that you’re genuinely excited about the work we do at JIJ and how you can contribute to our projects.
Tailor Your CV and Cover Letter:Make sure to customise your CV and cover letter for this internship. Highlight relevant experiences, skills, and projects that align with the role. We love seeing how your background fits into our research and development team!
Be Clear and Concise:Keep your application clear and to the point. Use straightforward language and avoid jargon unless it’s necessary. We appreciate a well-structured application that makes it easy for us to understand your qualifications and motivations.
Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your materials and ensures you’re considered for the right opportunities. Plus, it’s super easy to do!
How to prepare for a job interview at JIJ
✨Know Your Stuff
Make sure you brush up on your knowledge of quantum computing, mathematical optimisation, and AI. Familiarise yourself with the latest research papers and projects in these areas, as well as JIJ's specific technologies like JijZept. This will help you demonstrate your passion and understanding during the interview.
✨Show Off Your Skills
Prepare to discuss your programming skills, especially in Python. Be ready to share examples of past projects or experiences where you've applied scientific computing or optimisation libraries. This is your chance to showcase how your technical background aligns with the internship role.
✨Ask Smart Questions
Interviews are a two-way street! Prepare thoughtful questions about the projects you'll be working on, the team dynamics, and the impact of your work. This shows your genuine interest in the role and helps you assess if it's the right fit for you.
✨Practice Problem-Solving
Since the role involves analytical thinking and problem-solving, practice tackling some technical problems or case studies related to quantum algorithms or optimisation. This will not only boost your confidence but also prepare you for any technical assignments or discussions during the interview.
