Active IT and Telecommunications

Backend Software Engineer

Posted May 26, 2026

About the role

For one of the local leaders in the software development industry, which develops both Enterprise SaaS applications and customized solutions for various sectors of activity, we are looking for a Backend Software Engineer specialized in Kotlin and Spring Boot at an intermediate or senior level, to join our team in full expansion. You will be part of a new incubator-type Software Development team with the mission of discovering, evaluating, integrating and developing better solutions or improving the existing ones, using the latest technologies and processes.

Responsibilities

Responsibilities

  • Development and maintenance of scalable backend applications using **Kotlin** and **Spring Boot**
  • Writing robust, modular and easy-to-maintain code
  • Continuous optimization of the performance, security and reliability of the applications
  • Refactoring of the existing code, debugging, and participation in code reviews
  • Documenting the processes and the business logic
Requirements

Requirements

  • **Programming languages & Frameworks** - Kotlin (intermediate / advanced level) - Java (familiarity) - Spring Boot, Spring Web, Spring Data JPA
  • **Architecture & Backend Design** - RESTful APIs - Design Patterns (e.g. Factory, Strategy, Singleton) - Clean Architecture - Solid knowledge of OOP and SOLID principles
  • **Databases & Persistence** - postres SQL / NoSQL / VectorDb - Redis or other cache systems – an advantage - Familiarity with query performance tuning
  • **Testing & Security** - Unit and integration testing (e.g. JUnit, Testcontainers) - Knowledge regarding web security: HTTPS, JWT, OAuth2, CORS
  • **Tools and Practices** - Version Control: Git - CI/CD (GitLab CI, Jenkins) – advantage - Containers and orchestration: Docker, Docker Compose - Observability: logging, metrics, alerts – e.g. ELK, Prometheus, Grafana - Agile / Scrum - Respect for Clean Code, KISS, DRY
  • **Soft Skills:**
  • Problem-solving skills and attention to detail.
  • Efficient communication and well-developed interpersonal skills.
  • Creativity and independent thinking.
  • A nonconformist, honest, even slightly irreverent attitude when justified is appreciated within the departmental culture.
  • **Education & Experience:**
  • Studies in IT or related fields are a plus.
  • … but the actual selection is based on the interview, portfolio, or any other truly relevant differentiating factors.
Benefits

Benefits

  • The opportunity to develop products and services that positively impact a vital sector, and beyond.
  • Collaborative, forward-thinking environment, with support for professional development.
  • Competitive benefits package, with flexible work options (ideally full remote, hybrid in the initial phase).
  • Access to training courses and specialized conferences.

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Kapital HR

At the level of key roles, recruitment is not a volume process. It is a business decision with direct impact on the performance, stability, and direction of an organization.

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