Junior Backend Engineer

Transform Railway Operations for a Sustainable Future

KONUX is a dynamic and fast-growing technology company that is transforming the way the railway industry works. Our AI-powered solutions empower our customers to make smarter, data-driven decisions, and our culture is fueled by grit, ingenuity, and credibility - we believe that these values are essential to unlocking the potential of technology and making a real impact. At KONUX, we are passionate about driving innovation in the fields of IoT and AI, and we are looking for like-minded individuals to join our team.

Job Description:

We are seeking a Junior Backend Engineer (m/f/x) to join our team of innovators. In this role, you will contribute to building backend services and solutions that address real-world problems. You’ll work closely with experienced engineers, learning from them while developing your own skills.

You’ll be part of a collaborative team that values knowledge sharing, continuous learning, and practical problem-solving. We’re looking for someone who is curious, motivated to grow, and eager to take on new challenges. As part of the team, you’ll contribute to our engineering culture by bringing your ideas, asking questions, and supporting others.

Your Impact

• You’ll work in a cross-functional platform team to develop backend services and automation that support our products for customers and internal users
• You’ll contribute to the development lifecycle by implementing features, fixing bugs, and improving existing systems with guidance from more experienced engineers
• You’ll participate in discussions about customer problems and product improvements, sharing your ideas and learning from others
• You’ll collaborate with Backend, DevOps, and Data Engineers across teams to build reliable and scalable solutions
• You’ll learn and apply best practices in backend development, testing, and system design
• You’ll help maintain a clean and consistent codebase by following team standards and participating in code reviews
  
  

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To be successful in this role, you’ll need to have

• Work / internship experience writing production code in Python and/or Java (Spring Boot)
• Basic understanding of backend development concepts (APIs, services, data handling)
• Exposure to at least one database technology (SQL or NoSQL) and a willingness to learn more
• Hands-on exposure to GenAI technologies (e.g., working with LLM APIs, prompt design, or frameworks like LangChain), and willingness to deepen this expertise
• Familiarity with cloud environments (preferably AWS) is a plus, but not required
• Strong willingness to learn and grow, and openness to supporting other domains like Frontend, Data Engineering, or DevOps
• Good communication skills and the ability to collaborate effectively within a team
• A problem-solving mindset and curiosity to understand how systems work

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• A proactive attitude and eagerness to take ownership of small tasks and improve over time
• Ability to work in a fast-paced, collaborative environment and ask for help when needed
  
  

Why Join Us

💸 Competitive salary

📉 Equity (all permanent KONUX employees have equity!)

📖 Dedicated Learning & Development budget of 3.600€ p.a.

🏠 Comprehensive relocation support if you do not live in or around Munich, Germany

👨‍💻 Hybrid working model: Meet your colleagues in the office minimum 2 days per week

🏢 Modern workspace with cool rooftop with mountain view

💻 Flexible working conditions, home office equipment and free choice between a Windows or Apple laptop

❤️‍🩹 Health benefits supporting your physical and mental well-being, e.g wellpass/gym membership and mental health app license

🍒Fruits, snacks and beverages for energy and our very own Oma cooking in office every Thursday

👴 Company pension scheme

🙌 Access to Corporate Benefits and Future Bens

🌴 27 vacation days (+1 day on every work anniversary for 3 years)

💁 Volunteering activities (2 additional days off)

🍻 Company and team events

🐶 We are a pet-friendly company, so your four-legged friend can join you in office!

Equal Opportunity

At KONUX, we believe that a diverse team achieves better results faster. So here’s the deal: You bring in your very own perspective. We promise to judge your qualifications and performance, not your age, sex, religion, skin color, gender identity, family status or disability.