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Senior SW Engineer - Kotlin/Java

Frinx s.r.o.

Information about the position

  • Place of work: Remote work
  • Basic wage component (gross) and other rewards: 4 000 - 6 000 EUR/monthFinal salary depends on candidate's previous experience.
  • Start date: ASAP
  • Contract type: full-time, trade licence

Job description, responsibilities and duties

Would you like to join a growing team of professionals who are providing kick-ass automation solutions for international customers?

We now want YOU on board to help build our business since we are growing faster than you can say "self-organized networks".

We are looking for a Senior Software Developer to strengthen our team and help us scale up our Virtual Network Operation Center (Virtual NOC) product. Elisa's NOC has been fully automated since 2010. Today, no one is required to operate the NOC, and we are now selling this solution to customers worldwide.
You will be working closely with the customer and in addition of writing code you will serve as a bridge between the technology and the business side. You will focus on backend development. If preferred, your task could include travelling globally to visit customers when integrating our NOC in their systems.

Working in our team is, according to the team members, very much like working in a startup - except you don't have to worry about the financial aspects

Our team is highly international, and our working language is English

Employee perks, benefits

- International agile team
- Flexible working hours
- Home office possible
- Sick-leave 100% coverage
- Teambuildings, coffee, tea

Information about the selection process

Sounds like your cup of tea? Shoot us an application as soon as possible and we will get in touch with you!

Requirements for the employee

Candidates with education suit the position

University education (Bachelor's degree)
University education (Master's degree)
Postgraduate (Doctorate)

Educational Specialization


Language skills

English - Upper intermediate (B2)

Other knowledge

Java - Advanced
Kotlin - Basic
Python - Basic
ElasticSearch - Skillful
Kafka - Basic
Kubernetes - Basic

Number of years of experience


Personality requirements and skills

- Good technical skills as much as understanding of the business
- Expert in Java and willing to move to Kotlin
- You have worked with or very interested to learn the main technologies (Kotlin, Kafka, Kubernetes, ElasticSearch, Python, REST based Microservices for example)
- Previous working experience in agile development teams
- It is a big bonus if you are familiar with mobile network technologies (RAN)
- Having experience from public clouds or RAN OSS, is an advantage but not a requirement.


Brief description of the company

We are a team of passionate developers and industry professionals who want to change the way networking software gets developed, deployed and used. FRINX is made up from developers and network professionals who have vast experience with developing and deploying network applications in very large scale environments.

Elisa Polystar has acquired FRINX s.r.o, a Slovak network automation software supplier.
FRINX products and software will complement Elisa Polystar’s zero-touch automation and analytics
offering, which helps communications service providers (CSPs) automate their network management
processes in a multivendor telecom network environment. The acquisition is consistent with Elisa’s
strategy to grow digital services internationally and accelerate development of its telecom software
business under Elisa Polystar. With this transaction, Elisa Polystar is taking another step on its
strategic journey to make self-driving networks happen.

FRINX is a privately owned software provider founded in Bratislava, Slovakia, in 2016. FRINX helps CSPs automate their network configuration management. Its products – proven by installations among leading CSP customers – are cloud-native, microservices-based and network vendor-independent. Today, the company has around 40 experts working in its projects. Following the acquisition, development of their product offering will continue as part of Elisa Polystar’s automation business.

Elisa Polystar is a world-leading network automation and analytics solutions provider, serving over 120 CSPs globally. With its background as an international business of Finland’s largest CSP, Elisa Polystar’s solutions are proven and tested in live networks.

Number of employees

25-49 employees


Contact person: Career Frinx
E-mail: send CV