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Senior Backend Software Developer - Java/Spring Boot (m/f/d)

Košice, Košický kraj, sk💼 Full-time💰 $37,200–$37,200🗓 2026-08-28 → 2026-09-25

Core

Senior Backend Engineer leading the design, development, and scaling of microservices and REST APIs for the Charisma operational solution.

Role type

Senior hands-on IC backend engineer (Java/Spring Boot)

Builds

Scalable backend services, microservices, and REST APIs for complex operational and rollout processes

Domain

Enterprise software, telecommunications operations

Deliverable

production ML models | product features

Required skills

Java 17+, Spring Boot, Microservices architecture, PostgreSQL, REST API design, Domain-Driven Design, Kubernetes, CI/CD, Performance optimization, Technical mentoring

Preferred skills

AWS, Kotlin, Reactive Programming (WebFlux), Route optimization technologies

Technologies

Java, Spring Boot, PostgreSQL, Docker, Kubernetes, Git, Maven/Gradle, JUnit 5, Mockito, Prometheus, Grafana, OpenTelemetry, TARDIS

Responsibilities

Lead design and development of backend services and microservices; Optimize performance and troubleshoot production issues; Design data models and manage database migrations; Collaborate with stakeholders to translate business requirements into technical solutions; Mentor developers and conduct code reviews; Drive automated testing and observability strategies.

Seniority

Senior, hands-on IC

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