Senior Java/Kotlin Engineer (Freelancer)

supercharge, a tech services company in developer tools and infrastructure, is hiring for the role of Senior Java/Kotlin Engineer (Freelancer). It is a hybrid position in Budapest, Hungary. We classify it as a senior-level role in backend engineering. The posting names Java, Kotlin, Spring, Grafana, PostgreSQL and Redis. Candidates need 3+ years of experience. There are 3 open positions from supercharge on this site, 2 of them in IT and engineering.

Posted today · Last checked 2026-10-20

About supercharge

Developer tools and infrastructure Tech services / agency / consultancy 3 open positions, 67% in IT and engineering. Most open roles: Backend engineering (1), IT support and administration (1), Sales (1).

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