Senior Java Developer

Location: Niš or remote (or hybrid)


Deavensoft is a software development and consulting company from Niš, Serbia. We are looking for colleagues to join our team working for international clients.

Job Description

We are looking for a senior Java Developer with experience in building Java applications. This includes anything between groups of back-end services and their client (desktop, mobile) counterparts.

Your primary responsibility will be to design and develop the internet-scale and network infrastructure monitoring application, and to coordinate with the rest of the team working on different layers of the infrastructure. Thus, a commitment to collaborative problem solving, sophisticated design, and product quality are essential. 

You will take the full responsibility to deliver a project from the requirements through deployment to production on a visible and predictable schedule.

Furthermore, we would like to work with colleagues who are eager to learn and constantly expand their knowledge and expertise.


  • Leading a development team
  • Contribute to all phases of the development lifecycle
  • Design, build and maintain efficient, reusable, and reliable Java code
  • Ensure designs are in compliance with specifications
  • Support continuous improvement by investigating alternatives and technologies

Required skills and qualifications

  • Degree in Computer Science/Engineering or equivalent
  • 6+ years of working experience in the field of Java development
  • An excellent understanding of OO concepts, design patterns, and best practices
  • Experience with system architecture or leading a software team is a strong advantage 
  • Experience with designing and building REST APIs
  • Advanced knowledge of SQL and database principles
  • Good experience with unit testing and mocking frameworks
  • Solid experience with web technologies (HTML, CSS, JavaScript, AJAX)
  • Initiative to explore and learn new concepts/software technologies
  • A keen attention to detail
  • Good verbal and written communication skills in English

Skills considered as a plus

  • Experience working with Protocol buffers is a plus
  • Experience with container technologies like Docker is a plus
  • Experience with Testcontainers is a plus
  • Experience with cloud platforms like AWS or GCP is a plus
  • Experience with programming on the networking level is a plus
  • Experience with front-end frameworks like React or Vue is a plus

We offer

  • Open and informal but professional environment
  • Competitive compensation & benefits
  • Flexible working environment to create a balanced work/life schedule
  • Cozy office in the city center
  • Full-remote work or hybrid (combining remote and office work) are valid options, too
  • Professional and soft skills training, incl. conferences
  • Dedicated work time for learning and experimenting