At Campeón Gaming, we build the technology behind online casino and sports betting brands. We provide an all-in-one platform that allows our partners to launch, run, and grow their own brand with our engine. From the technology to the day-to-day operations, we support everything needed to make a brand successful. Our platform is fast, flexible, and designed to scale across regulated markets worldwide. Also, we offer managed services such as Payments, CRM, Customer Support, KYC & Fraud, Affiliates, and Casino & Sportsbook Management. This allows our partners to focus on growing their brand, while we support the technology and core operational functions of the platform. Internship Program – The 90 day journey   The "90 day journey" is our 3month paid Internship Program, designed to support the younger generation as they take their first steps into the business world or switch their career into the Tech industry.  During the program, interns will develop both soft and hard skills, applying their academic knowledge to real-world business scenarios. Through tailored mentorship and continuous learning opportunities, they will embark on a transformative journey that equips interns for future career success. About the job: The Backend Developer Intern will support the development and maintenance of backend systems. Responsibilities:  * Assist with the implementation of back-end solutions in alignment with business requirements. * Help with the integration of new gaming and payment providers into our systems. * Collaborate with cross-functional teams, including front-end developers, designers, and product managers, to deliver comprehensive i-gaming solutions. * Stay updated on industry regulations and compliance standards related to iGaming. Requirements: * Education from Greek or foreign universities. * Fluency in English, both written and oral. * Analytical thinking with problem-solving abilities * Familiar with Java, GraphQL, Redis,Postgres. We got you covered here: * Competitive Salary * Access to LinkedIn Learning programs * Monthly allowance for orders via the Wolt App & free drinks and snacks at the office * Paid educational leave * Modern offices in the center of Thessaloniki * Feedback for Constant personal and professional develop * Extra Days off! Diversity, Equity & Inclusion At Campeón Gaming, we believe every story deserves to be heard and valued. We are proud signatories of the Diversity Charter Greece, reinforcing our commitment to a culture of equality, respect, and inclusion. We welcome and celebrate people of all backgrounds, experiences, and perspectives. For us, diversity is not just a principle. It’s a strength that drives innovation, connection, and collective success. Every story deserves a shared journey. Ready to be a Campeόn?