JAVA Software Developer

FREQUENTIS Solutions & Services s. r. o.

Place of work
Remote work
Contract type
full-time, trade licence
Wage (gross)
From 2 800 EUR/monthMinimum 2 800 EUR brutto. Freelancer´s hourly rate upon agreement. The final basic wage component will be adjusted to individual skills and experience of selected candidate.

Information about the position

Job description, responsibilities and duties

Would you like to create an exciting technology and work with other enthusiastic developers?

Bratislava-based FREQUENTIS Solutions & Services s.r.o. belongs to the Austrian FREQUENTIS group (, specialized in mission-critical communication and IT solutions, e.g. in air traffic control, public safety or defense.

Your next project - Unmanned Traffic Management:
FREQUENTIS Solutions & Services s.r.o. works with our parent company FREQUENTIS in a task force for new business development. Currently that task force represents FREQUENTIS in SESAR (, a group that coordinates R&D activities around the Single European Sky initiative. As part of that initiative, we are participating in multiple R&D projects focused on challenges drones pose to air traffic management. These challenges include for example private drones interfering with commercial air traffic, smaller commercial drones used for parcel delivery and an anticipated shift from manned aircrafts to unmanned aircrafts in commercial aviation. Also, in some of our other business domains we see the need to adapt to and integrate drones, for example to increase the situational awareness of public safety control room operators (police, ambulance and fire agencies).
We use modern technologies and approaches:
  • Kubernetes
  • cloud-ready development (Azure)
  • messaging protocols and tools (ActiveMQ)
  • shared service memory (Redis)

Your main tasks in the project will be:
• Work closely with our requirements engineers
• Participate in overall software design
• Self-reliant design, development and integration of software modules
• Self-reliant integration with third party applications, including the required communication with our partners and other industry players
• Participation in conferences, European research projects, demo and integration workshops

Who We Are Looking For?
We are looking for a talented Software Developer; a team player who can work self-reliantly and independently, who likes to stay ahead of the challenges commercial and private drones pose to air traffic controllers around the world.

Your Technical Skills and Knowledge:

You should have professional experience in software development in the following technologies:
  • OOP
  • knowledge of basic data structures and data types
  • SQL or NO-SQL databases and queries
  • HTTP protocol

Experience we would appreciate:
  • Java (Spring boot)
  • Version Control (GIT)
  • Basics of UML (class diagram, flow chart)
  • Swagger

Knowledge as an advantage:
  • containerization (Docker, Kubernetes, Rancher)
  • messaging (ActiveMQ)
  • no-sql (ElasticSearch, MongoDB)
  • OAuth 2.0 (Keycloak, JWT tokens)
  • Agile software development (SCRUM)
  • Integration framework (Apache Camel)
  • Shared service memory (Redis)

Employee perks, benefits

• Training and development program (business and product trainings, individual language course)
• Flexible working hours, home office
• Employee referral program – you get a bonus if we hire somebody you referred
• Refreshments, company events (breakfasts, Christmas party and presents, team buildings)
• Meal vouchers fully reimbursed by the company.

Requirements for the employee

Candidates with education suit the position

Secondary with school-leaving examination
University education (Bachelor's degree)
University education (Master's degree)
Postgraduate (Doctorate)

Educational Specialization

Informačné technológie, Telekomunikácie

Language skills

English - Upper intermediate (B2)

Personality requirements and skills

• You are flexible, self-driven, dedicated, goal-oriented structured in how you approach your work and a conceptual thinker.
• You can independently design and develop software modules, even without detailed specifications.
• You can drive specification and development of interfaces to third party modules
• You are communicative and like to meet new people, listen and mentor our junior engineers, collaborate and find agreements with your senior colleagues and are able to network within the FREQUENTIS group.
• You own, run and support the software you develop.
• You like to form an educated opinion, based on external input and your own experience and reflection. You stand by and follow that opinion but are also not afraid to revise or evolve your opinion based on new findings and facts.
• You enjoy learning and exploring the unknown, for example by getting into new domains and applying cutting edge technology.
• You like to follow KISS and Palchinsky’s principles.
• You can integrate yourself into a larger cooperation, following corporate processes and recognizing constraints that may affect your work.
• You are proficient in spoken and written English. Knowledge of German or other European languages is an advantage.


Brief description of the company

Our Bratislava-based company FREQUENTIS Solutions & Services belongs to the Austrian group FREQUENIS AG (, specialized in safety-critical voice communications, for example for air traffic control towers, public safety control rooms (112) or air defense forces. Our mission critical solutions cover diverse areas, such as telephony and radio communication, Geographical Information Systems (GIS), incident and resource management, video surveillance and automatic video analytics.

In the last couple of years this business has evolved from hardware- to software-centric solutions and Frequentis has also increasingly provided mission-critical IT solutions beyond voice communication to our customers. We follow the Scrum methodology and our applications are mostly developed in Java to the highest quality standards.
From an engineering perspective we deploy state-of-the-art technologies and design patterns. Our solutions use JAVA and Microsoft .NET foundations, distributed architectures, low-latency telecommunications processing, real time web applications, integration platforms and high availability. Each of our solutions contains their own unique and challenging problems to solve.

For our customers, lives may be at stake and seconds count. Our products thus need to be developed to the highest standards when it comes to usability and reliability. Safety is what guides us from the first designs till the final tests of any of our product. If those are the kinds of challenges that excite you, then you have come to the right place!

Number of employees

150-199 employees


Contact person: Ing. Eva Lajchová
E-mail: send CV
ID: 4444381  Dátum zverejnenia: 14.11.2022  Základná zložka mzdy (brutto): 2 800 EUR/month